./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c03aa9fd4feebd47970076773e3fcb11c7b82646fa9d57d8ea4dde0614545dfa ................................................................................................................................... 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_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c03aa9fd4feebd47970076773e3fcb11c7b82646fa9d57d8ea4dde0614545dfa ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 20:09:15,693 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:09:15,695 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:09:15,737 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:09:15,738 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:09:15,740 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:09:15,742 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:09:15,745 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:09:15,747 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:09:15,749 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:09:15,750 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:09:15,752 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:09:15,752 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:09:15,754 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:09:15,756 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:09:15,758 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:09:15,759 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:09:15,760 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:09:15,763 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:09:15,766 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:09:15,768 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:09:15,778 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:09:15,783 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:09:15,784 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:09:15,789 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:09:15,789 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:09:15,789 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:09:15,791 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:09:15,791 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:09:15,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:09:15,793 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:09:15,794 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:09:15,795 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:09:15,796 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:09:15,798 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:09:15,798 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:09:15,799 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:09:15,800 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:09:15,800 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:09:15,802 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:09:15,803 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:09:15,804 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-21 20:09:15,834 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:09:15,834 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:09:15,835 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:09:15,835 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:09:15,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:09:15,837 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:09:15,837 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:09:15,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:09:15,837 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:09:15,838 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 20:09:15,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:09:15,838 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:09:15,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:09:15,838 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-21 20:09:15,839 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-21 20:09:15,839 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-21 20:09:15,839 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 20:09:15,839 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-21 20:09:15,840 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:09:15,840 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:09:15,840 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:09:15,840 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:09:15,841 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 20:09:15,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:09:15,841 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:09:15,841 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 20:09:15,842 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:09:15,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 20:09:15,842 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:09:15,842 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_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c03aa9fd4feebd47970076773e3fcb11c7b82646fa9d57d8ea4dde0614545dfa [2021-10-21 20:09:16,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:09:16,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:09:16,202 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:09:16,204 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:09:16,205 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:09:16,206 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i [2021-10-21 20:09:16,283 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/data/34a60c91b/18b73dd6288749c9a0e52ddad9cef0be/FLAG399b1970c [2021-10-21 20:09:16,853 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:09:16,854 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i [2021-10-21 20:09:16,873 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/data/34a60c91b/18b73dd6288749c9a0e52ddad9cef0be/FLAG399b1970c [2021-10-21 20:09:17,125 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/data/34a60c91b/18b73dd6288749c9a0e52ddad9cef0be [2021-10-21 20:09:17,131 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:09:17,133 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-21 20:09:17,136 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:09:17,136 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:09:17,140 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:09:17,141 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:09:17" (1/1) ... [2021-10-21 20:09:17,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@226affc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:09:17, skipping insertion in model container [2021-10-21 20:09:17,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:09:17" (1/1) ... [2021-10-21 20:09:17,191 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:09:17,271 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:09:17,798 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:09:17,821 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-21 20:09:17,821 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3a296a1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:09:17, skipping insertion in model container [2021-10-21 20:09:17,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:09:17,823 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-21 20:09:17,827 INFO L168 Benchmark]: Toolchain (without parser) took 690.69 ms. Allocated memory was 81.8 MB in the beginning and 102.8 MB in the end (delta: 21.0 MB). Free memory was 42.1 MB in the beginning and 69.7 MB in the end (delta: -27.7 MB). Peak memory consumption was 2.5 MB. Max. memory is 16.1 GB. [2021-10-21 20:09:17,828 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 81.8 MB. Free memory was 60.1 MB in the beginning and 60.1 MB in the end (delta: 72.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:09:17,830 INFO L168 Benchmark]: CACSL2BoogieTranslator took 686.81 ms. Allocated memory was 81.8 MB in the beginning and 102.8 MB in the end (delta: 21.0 MB). Free memory was 41.9 MB in the beginning and 69.7 MB in the end (delta: -27.9 MB). Peak memory consumption was 2.5 MB. Max. memory is 16.1 GB. [2021-10-21 20:09:17,833 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 81.8 MB. Free memory was 60.1 MB in the beginning and 60.1 MB in the end (delta: 72.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 686.81 ms. Allocated memory was 81.8 MB in the beginning and 102.8 MB in the end (delta: 21.0 MB). Free memory was 41.9 MB in the beginning and 69.7 MB in the end (delta: -27.9 MB). Peak memory consumption was 2.5 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-e943c26 [2021-10-21 20:09:20,515 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:09:20,518 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:09:20,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:09:20,584 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:09:20,591 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:09:20,593 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:09:20,605 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:09:20,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:09:20,610 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:09:20,611 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:09:20,613 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:09:20,613 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:09:20,615 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:09:20,619 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:09:20,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:09:20,629 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:09:20,638 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:09:20,641 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:09:20,644 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:09:20,646 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:09:20,651 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:09:20,654 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:09:20,657 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:09:20,668 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:09:20,669 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:09:20,669 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:09:20,672 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:09:20,672 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:09:20,674 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:09:20,674 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:09:20,676 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:09:20,678 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:09:20,679 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:09:20,681 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:09:20,681 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:09:20,682 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:09:20,683 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:09:20,683 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:09:20,685 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:09:20,686 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:09:20,693 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-21 20:09:20,745 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:09:20,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:09:20,746 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:09:20,746 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:09:20,749 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:09:20,749 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:09:20,750 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:09:20,751 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:09:20,751 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:09:20,751 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 20:09:20,753 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:09:20,753 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:09:20,753 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:09:20,754 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-21 20:09:20,754 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-21 20:09:20,754 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-21 20:09:20,754 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 20:09:20,755 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-21 20:09:20,755 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-21 20:09:20,755 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-21 20:09:20,756 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:09:20,756 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:09:20,756 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:09:20,756 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:09:20,757 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 20:09:20,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:09:20,757 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:09:20,758 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 20:09:20,758 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-21 20:09:20,758 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-21 20:09:20,758 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:09:20,759 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-21 20:09:20,759 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_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c03aa9fd4feebd47970076773e3fcb11c7b82646fa9d57d8ea4dde0614545dfa [2021-10-21 20:09:21,243 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:09:21,287 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:09:21,290 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:09:21,292 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:09:21,293 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:09:21,294 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i [2021-10-21 20:09:21,373 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/data/29c8ac96e/25c9d02dee794247b2df98393d92c23d/FLAG29c35c64a [2021-10-21 20:09:22,156 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:09:22,158 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i [2021-10-21 20:09:22,190 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/data/29c8ac96e/25c9d02dee794247b2df98393d92c23d/FLAG29c35c64a [2021-10-21 20:09:22,343 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/data/29c8ac96e/25c9d02dee794247b2df98393d92c23d [2021-10-21 20:09:22,346 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:09:22,349 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-21 20:09:22,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:09:22,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:09:22,357 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:09:22,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:09:22" (1/1) ... [2021-10-21 20:09:22,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c687384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:09:22, skipping insertion in model container [2021-10-21 20:09:22,360 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:09:22" (1/1) ... [2021-10-21 20:09:22,370 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:09:22,451 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:09:22,974 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:09:22,994 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-21 20:09:23,004 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:09:23,060 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:09:23,071 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:09:23,146 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:09:23,207 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:09:23,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:09:23 WrapperNode [2021-10-21 20:09:23,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:09:23,210 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:09:23,210 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:09:23,210 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:09:23,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:09:23" (1/1) ... [2021-10-21 20:09:23,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:09:23" (1/1) ... [2021-10-21 20:09:23,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:09:23" (1/1) ... [2021-10-21 20:09:23,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:09:23" (1/1) ... [2021-10-21 20:09:23,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:09:23" (1/1) ... [2021-10-21 20:09:23,305 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:09:23" (1/1) ... [2021-10-21 20:09:23,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:09:23" (1/1) ... [2021-10-21 20:09:23,331 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:09:23,333 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:09:23,333 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:09:23,333 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:09:23,334 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:09:23" (1/1) ... [2021-10-21 20:09:23,342 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:09:23,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:09:23,382 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 20:09:23,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 20:09:23,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-21 20:09:23,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:09:23,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-21 20:09:23,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-21 20:09:23,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-21 20:09:23,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-21 20:09:23,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-21 20:09:23,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-21 20:09:23,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-21 20:09:23,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-21 20:09:23,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-21 20:09:23,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-21 20:09:23,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-21 20:09:23,440 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-21 20:09:23,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-21 20:09:23,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-21 20:09:23,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-21 20:09:23,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-21 20:09:23,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-21 20:09:23,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-21 20:09:23,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-21 20:09:23,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-21 20:09:23,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-21 20:09:23,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-21 20:09:23,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-21 20:09:23,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-21 20:09:23,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-21 20:09:23,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-21 20:09:23,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-21 20:09:23,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-21 20:09:23,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-21 20:09:23,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-21 20:09:23,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-21 20:09:23,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-21 20:09:23,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-21 20:09:23,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-21 20:09:23,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-21 20:09:23,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-21 20:09:23,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-21 20:09:23,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-21 20:09:23,446 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-21 20:09:23,446 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-21 20:09:23,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_device [2021-10-21 20:09:23,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_device [2021-10-21 20:09:23,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_deregister_device [2021-10-21 20:09:23,447 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_20 [2021-10-21 20:09:23,447 INFO L138 BoogieDeclarations]: Found implementation of procedure free_20 [2021-10-21 20:09:23,447 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-21 20:09:23,448 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-21 20:09:23,448 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-21 20:09:23,448 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-21 20:09:23,448 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-21 20:09:23,449 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-21 20:09:23,449 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-21 20:09:23,449 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-21 20:09:23,449 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-21 20:09:23,449 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-21 20:09:23,450 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-21 20:09:23,450 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-21 20:09:23,450 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-21 20:09:23,450 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-21 20:09:23,450 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-21 20:09:23,451 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-21 20:09:23,451 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-21 20:09:23,451 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-21 20:09:23,451 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-21 20:09:23,451 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-21 20:09:23,452 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-21 20:09:23,452 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-21 20:09:23,452 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-21 20:09:23,452 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-21 20:09:23,452 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-21 20:09:23,453 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-21 20:09:23,453 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-21 20:09:23,453 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-21 20:09:23,453 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-21 20:09:23,453 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-21 20:09:23,454 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-21 20:09:23,454 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-21 20:09:23,454 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-21 20:09:23,454 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-21 20:09:23,454 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-21 20:09:23,455 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-21 20:09:23,455 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-21 20:09:23,455 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-21 20:09:23,455 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-21 20:09:23,456 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-21 20:09:23,456 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-21 20:09:23,456 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-21 20:09:23,456 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-21 20:09:23,456 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-21 20:09:23,456 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-21 20:09:23,457 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-21 20:09:23,457 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-21 20:09:23,457 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-21 20:09:23,457 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-21 20:09:23,457 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-21 20:09:23,458 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-21 20:09:23,458 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-21 20:09:23,458 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-21 20:09:23,458 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-21 20:09:23,458 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-21 20:09:23,459 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-21 20:09:23,459 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-21 20:09:23,459 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-21 20:09:23,459 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-21 20:09:23,459 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-21 20:09:23,460 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-21 20:09:23,460 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-21 20:09:23,460 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-21 20:09:23,460 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-21 20:09:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-21 20:09:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-21 20:09:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-21 20:09:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-21 20:09:23,461 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-21 20:09:23,462 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-21 20:09:23,462 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-21 20:09:23,462 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-21 20:09:23,462 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-21 20:09:23,462 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-21 20:09:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-21 20:09:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-21 20:09:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-21 20:09:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-21 20:09:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-21 20:09:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-21 20:09:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-21 20:09:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-21 20:09:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-21 20:09:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-21 20:09:23,465 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-21 20:09:23,465 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-21 20:09:23,465 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-21 20:09:23,465 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-21 20:09:23,465 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-21 20:09:23,466 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-21 20:09:23,466 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-21 20:09:23,466 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-21 20:09:23,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-21 20:09:23,466 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-21 20:09:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-21 20:09:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-21 20:09:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-21 20:09:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-21 20:09:23,467 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-21 20:09:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-21 20:09:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-21 20:09:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-21 20:09:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-21 20:09:23,468 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-21 20:09:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-21 20:09:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-21 20:09:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-21 20:09:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-21 20:09:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-21 20:09:23,469 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-21 20:09:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-21 20:09:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-21 20:09:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-21 20:09:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-21 20:09:23,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-21 20:09:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-21 20:09:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-21 20:09:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-21 20:09:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-21 20:09:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-21 20:09:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-21 20:09:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-21 20:09:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-21 20:09:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-21 20:09:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-21 20:09:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-21 20:09:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-21 20:09:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-21 20:09:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-21 20:09:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-21 20:09:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-21 20:09:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-21 20:09:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-21 20:09:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-21 20:09:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 20:09:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-21 20:09:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-21 20:09:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-21 20:09:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-21 20:09:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-21 20:09:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-21 20:09:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-21 20:09:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-21 20:09:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-21 20:09:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-21 20:09:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-21 20:09:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-21 20:09:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-21 20:09:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-21 20:09:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-21 20:09:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-21 20:09:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-21 20:09:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-21 20:09:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-21 20:09:23,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-21 20:09:23,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-21 20:09:23,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-21 20:09:23,478 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-21 20:09:23,478 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-21 20:09:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_device [2021-10-21 20:09:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_device [2021-10-21 20:09:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_deregister_device [2021-10-21 20:09:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_20 [2021-10-21 20:09:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure free_20 [2021-10-21 20:09:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-21 20:09:23,480 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-21 20:09:23,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-21 20:09:23,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:09:23,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-21 20:09:23,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:09:23,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-21 20:09:23,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-21 20:09:23,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-21 20:09:23,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-21 20:09:23,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-21 20:09:24,208 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-21 20:09:24,636 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-21 20:09:25,023 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:09:25,025 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-21 20:09:25,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:09:25 BoogieIcfgContainer [2021-10-21 20:09:25,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:09:25,033 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 20:09:25,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 20:09:25,037 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 20:09:25,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 08:09:22" (1/3) ... [2021-10-21 20:09:25,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b277152 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:09:25, skipping insertion in model container [2021-10-21 20:09:25,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:09:23" (2/3) ... [2021-10-21 20:09:25,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b277152 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:09:25, skipping insertion in model container [2021-10-21 20:09:25,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:09:25" (3/3) ... [2021-10-21 20:09:25,043 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test20-2.i [2021-10-21 20:09:25,050 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 20:09:25,050 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 74 error locations. [2021-10-21 20:09:25,106 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 20:09:25,121 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 20:09:25,122 INFO L340 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2021-10-21 20:09:25,154 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 62 states have (on average 1.467741935483871) internal successors, (91), 84 states have internal predecessors, (91), 15 states have call successors, (15), 14 states have call predecessors, (15), 14 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-10-21 20:09:25,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-21 20:09:25,183 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:09:25,184 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:09:25,185 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting free_20Err0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-21 20:09:25,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:09:25,192 INFO L82 PathProgramCache]: Analyzing trace with hash -2108151956, now seen corresponding path program 1 times [2021-10-21 20:09:25,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:09:25,207 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [403034053] [2021-10-21 20:09:25,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:09:25,209 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:09:25,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:09:25,213 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:09:25,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-21 20:09:25,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:25,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:09:25,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:09:25,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:25,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:09:25,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:25,956 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:09:25,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [403034053] [2021-10-21 20:09:25,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [403034053] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 20:09:25,959 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:09:25,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-21 20:09:25,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938285804] [2021-10-21 20:09:25,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 20:09:25,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:09:25,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:09:25,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:09:25,994 INFO L87 Difference]: Start difference. First operand has 113 states, 62 states have (on average 1.467741935483871) internal successors, (91), 84 states have internal predecessors, (91), 15 states have call successors, (15), 14 states have call predecessors, (15), 14 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-21 20:09:26,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:09:26,047 INFO L93 Difference]: Finished difference Result 50 states and 53 transitions. [2021-10-21 20:09:26,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 20:09:26,052 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 24 [2021-10-21 20:09:26,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:09:26,064 INFO L225 Difference]: With dead ends: 50 [2021-10-21 20:09:26,065 INFO L226 Difference]: Without dead ends: 47 [2021-10-21 20:09:26,067 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.8ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:09:26,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-21 20:09:26,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 44. [2021-10-21 20:09:26,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 24 states have (on average 1.25) internal successors, (30), 28 states have internal predecessors, (30), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) [2021-10-21 20:09:26,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 46 transitions. [2021-10-21 20:09:26,136 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 46 transitions. Word has length 24 [2021-10-21 20:09:26,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:09:26,137 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 46 transitions. [2021-10-21 20:09:26,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-21 20:09:26,139 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2021-10-21 20:09:26,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-21 20:09:26,140 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:09:26,141 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:09:26,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-21 20:09:26,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:09:26,360 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting free_20Err0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-21 20:09:26,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:09:26,368 INFO L82 PathProgramCache]: Analyzing trace with hash -600600147, now seen corresponding path program 1 times [2021-10-21 20:09:26,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:09:26,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2120137355] [2021-10-21 20:09:26,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:09:26,375 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:09:26,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:09:26,377 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:09:26,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-21 20:09:26,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:26,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-21 20:09:26,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:09:27,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:27,095 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:09:27,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:27,693 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:09:27,694 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2120137355] [2021-10-21 20:09:27,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2120137355] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 20:09:27,694 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:09:27,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2021-10-21 20:09:27,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837152183] [2021-10-21 20:09:27,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-21 20:09:27,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:09:27,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 20:09:27,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-21 20:09:27,698 INFO L87 Difference]: Start difference. First operand 44 states and 46 transitions. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 4 states have call successors, (10), 4 states have call predecessors, (10), 6 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2021-10-21 20:09:28,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:09:28,199 INFO L93 Difference]: Finished difference Result 60 states and 62 transitions. [2021-10-21 20:09:28,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-21 20:09:28,201 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 4 states have call successors, (10), 4 states have call predecessors, (10), 6 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 24 [2021-10-21 20:09:28,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:09:28,203 INFO L225 Difference]: With dead ends: 60 [2021-10-21 20:09:28,203 INFO L226 Difference]: Without dead ends: 60 [2021-10-21 20:09:28,204 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 302.3ms TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-10-21 20:09:28,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-10-21 20:09:28,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 55. [2021-10-21 20:09:28,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 30 states have (on average 1.2) internal successors, (36), 34 states have internal predecessors, (36), 10 states have call successors, (10), 10 states have call predecessors, (10), 11 states have return successors, (11), 10 states have call predecessors, (11), 9 states have call successors, (11) [2021-10-21 20:09:28,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2021-10-21 20:09:28,215 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 24 [2021-10-21 20:09:28,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:09:28,216 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2021-10-21 20:09:28,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 4 states have call successors, (10), 4 states have call predecessors, (10), 6 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2021-10-21 20:09:28,217 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2021-10-21 20:09:28,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-21 20:09:28,218 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:09:28,218 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:09:28,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-21 20:09:28,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:09:28,432 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting free_20Err0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-21 20:09:28,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:09:28,433 INFO L82 PathProgramCache]: Analyzing trace with hash 976042921, now seen corresponding path program 1 times [2021-10-21 20:09:28,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:09:28,433 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [518972455] [2021-10-21 20:09:28,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:09:28,434 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:09:28,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:09:28,435 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:09:28,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-21 20:09:28,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:28,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-21 20:09:28,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:09:28,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:28,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:09:29,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:29,377 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:09:29,377 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [518972455] [2021-10-21 20:09:29,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [518972455] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 20:09:29,378 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:09:29,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 12 [2021-10-21 20:09:29,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433412887] [2021-10-21 20:09:29,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-21 20:09:29,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:09:29,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-21 20:09:29,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-10-21 20:09:29,383 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. Second operand has 13 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 3 states have call successors, (9), 2 states have call predecessors, (9), 7 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2021-10-21 20:09:29,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:09:29,622 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2021-10-21 20:09:29,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-21 20:09:29,623 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 3 states have call successors, (9), 2 states have call predecessors, (9), 7 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 28 [2021-10-21 20:09:29,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:09:29,624 INFO L225 Difference]: With dead ends: 55 [2021-10-21 20:09:29,625 INFO L226 Difference]: Without dead ends: 55 [2021-10-21 20:09:29,625 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 220.3ms TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2021-10-21 20:09:29,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-10-21 20:09:29,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2021-10-21 20:09:29,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 30 states have (on average 1.1333333333333333) internal successors, (34), 33 states have internal predecessors, (34), 10 states have call successors, (10), 10 states have call predecessors, (10), 11 states have return successors, (11), 10 states have call predecessors, (11), 9 states have call successors, (11) [2021-10-21 20:09:29,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2021-10-21 20:09:29,634 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 28 [2021-10-21 20:09:29,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:09:29,635 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2021-10-21 20:09:29,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 3 states have call successors, (9), 2 states have call predecessors, (9), 7 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2021-10-21 20:09:29,636 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2021-10-21 20:09:29,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-21 20:09:29,643 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:09:29,643 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:09:29,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-21 20:09:29,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:09:29,857 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting free_20Err1ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-21 20:09:29,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:09:29,858 INFO L82 PathProgramCache]: Analyzing trace with hash 192559894, now seen corresponding path program 1 times [2021-10-21 20:09:29,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:09:29,858 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1850647689] [2021-10-21 20:09:29,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:09:29,858 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:09:29,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:09:29,861 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:09:29,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-21 20:09:30,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:30,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-21 20:09:30,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:09:30,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:30,843 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:09:31,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:31,609 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:09:31,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1850647689] [2021-10-21 20:09:31,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1850647689] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 20:09:31,610 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:09:31,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 10] imperfect sequences [] total 21 [2021-10-21 20:09:31,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454177123] [2021-10-21 20:09:31,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-21 20:09:31,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:09:31,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-21 20:09:31,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2021-10-21 20:09:31,613 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 17 states have internal predecessors, (32), 6 states have call successors, (15), 5 states have call predecessors, (15), 10 states have return successors, (10), 8 states have call predecessors, (10), 6 states have call successors, (10) [2021-10-21 20:09:33,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:09:33,033 INFO L93 Difference]: Finished difference Result 77 states and 77 transitions. [2021-10-21 20:09:33,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-21 20:09:33,034 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 17 states have internal predecessors, (32), 6 states have call successors, (15), 5 states have call predecessors, (15), 10 states have return successors, (10), 8 states have call predecessors, (10), 6 states have call successors, (10) Word has length 29 [2021-10-21 20:09:33,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:09:33,036 INFO L225 Difference]: With dead ends: 77 [2021-10-21 20:09:33,036 INFO L226 Difference]: Without dead ends: 77 [2021-10-21 20:09:33,037 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 1312.6ms TimeCoverageRelationStatistics Valid=250, Invalid=1232, Unknown=0, NotChecked=0, Total=1482 [2021-10-21 20:09:33,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-10-21 20:09:33,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 53. [2021-10-21 20:09:33,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 30 states have (on average 1.1) internal successors, (33), 32 states have internal predecessors, (33), 10 states have call successors, (10), 10 states have call predecessors, (10), 11 states have return successors, (11), 10 states have call predecessors, (11), 9 states have call successors, (11) [2021-10-21 20:09:33,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2021-10-21 20:09:33,046 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 29 [2021-10-21 20:09:33,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:09:33,046 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2021-10-21 20:09:33,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 17 states have internal predecessors, (32), 6 states have call successors, (15), 5 states have call predecessors, (15), 10 states have return successors, (10), 8 states have call predecessors, (10), 6 states have call successors, (10) [2021-10-21 20:09:33,047 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2021-10-21 20:09:33,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-21 20:09:33,048 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:09:33,049 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:09:33,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-21 20:09:33,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:09:33,260 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting free_20Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-21 20:09:33,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:09:33,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1674389835, now seen corresponding path program 1 times [2021-10-21 20:09:33,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:09:33,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1858091795] [2021-10-21 20:09:33,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:09:33,262 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:09:33,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:09:33,263 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:09:33,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-21 20:09:33,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:33,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-21 20:09:33,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:09:33,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-21 20:09:33,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:33,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:09:34,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:34,425 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:09:34,425 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1858091795] [2021-10-21 20:09:34,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1858091795] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 20:09:34,425 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:09:34,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 13 [2021-10-21 20:09:34,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045364122] [2021-10-21 20:09:34,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-21 20:09:34,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:09:34,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-21 20:09:34,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2021-10-21 20:09:34,428 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand has 14 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 11 states have internal predecessors, (21), 3 states have call successors, (10), 3 states have call predecessors, (10), 7 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2021-10-21 20:09:34,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:09:34,971 INFO L93 Difference]: Finished difference Result 71 states and 73 transitions. [2021-10-21 20:09:34,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-21 20:09:34,973 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 11 states have internal predecessors, (21), 3 states have call successors, (10), 3 states have call predecessors, (10), 7 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 30 [2021-10-21 20:09:34,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:09:34,975 INFO L225 Difference]: With dead ends: 71 [2021-10-21 20:09:34,975 INFO L226 Difference]: Without dead ends: 71 [2021-10-21 20:09:34,975 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 42 SyntacticMatches, 6 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 354.1ms TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2021-10-21 20:09:34,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-10-21 20:09:34,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 66. [2021-10-21 20:09:34,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 38 states have (on average 1.0789473684210527) internal successors, (41), 40 states have internal predecessors, (41), 13 states have call successors, (13), 12 states have call predecessors, (13), 13 states have return successors, (15), 13 states have call predecessors, (15), 12 states have call successors, (15) [2021-10-21 20:09:34,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 69 transitions. [2021-10-21 20:09:34,997 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 69 transitions. Word has length 30 [2021-10-21 20:09:34,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:09:34,998 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 69 transitions. [2021-10-21 20:09:34,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 11 states have internal predecessors, (21), 3 states have call successors, (10), 3 states have call predecessors, (10), 7 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2021-10-21 20:09:34,999 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 69 transitions. [2021-10-21 20:09:35,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-21 20:09:35,002 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:09:35,002 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:09:35,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-21 20:09:35,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:09:35,212 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting free_20Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-21 20:09:35,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:09:35,212 INFO L82 PathProgramCache]: Analyzing trace with hash 1885740748, now seen corresponding path program 1 times [2021-10-21 20:09:35,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:09:35,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [280182040] [2021-10-21 20:09:35,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:09:35,213 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:09:35,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:09:35,215 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:09:35,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-21 20:09:35,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:35,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 20:09:35,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:09:35,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:35,693 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:09:35,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:35,891 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:09:35,891 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [280182040] [2021-10-21 20:09:35,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [280182040] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 20:09:35,891 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:09:35,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-21 20:09:35,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900266015] [2021-10-21 20:09:35,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 20:09:35,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:09:35,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:09:35,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:09:35,893 INFO L87 Difference]: Start difference. First operand 66 states and 69 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-21 20:09:35,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:09:35,912 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2021-10-21 20:09:35,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 20:09:35,915 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 30 [2021-10-21 20:09:35,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:09:35,916 INFO L225 Difference]: With dead ends: 52 [2021-10-21 20:09:35,920 INFO L226 Difference]: Without dead ends: 52 [2021-10-21 20:09:35,921 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.2ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:09:35,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-21 20:09:35,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-10-21 20:09:35,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 30 states have (on average 1.0333333333333334) internal successors, (31), 31 states have internal predecessors, (31), 10 states have call successors, (10), 10 states have call predecessors, (10), 11 states have return successors, (11), 10 states have call predecessors, (11), 9 states have call successors, (11) [2021-10-21 20:09:35,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2021-10-21 20:09:35,933 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 30 [2021-10-21 20:09:35,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:09:35,933 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2021-10-21 20:09:35,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-21 20:09:35,934 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2021-10-21 20:09:35,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-21 20:09:35,936 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:09:35,936 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:09:35,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-21 20:09:36,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:09:36,152 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-21 20:09:36,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:09:36,152 INFO L82 PathProgramCache]: Analyzing trace with hash 844909557, now seen corresponding path program 1 times [2021-10-21 20:09:36,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:09:36,153 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1529915708] [2021-10-21 20:09:36,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:09:36,153 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:09:36,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:09:36,154 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:09:36,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-21 20:09:36,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:36,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-21 20:09:36,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:09:36,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:36,568 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:09:36,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:36,807 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:09:36,807 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1529915708] [2021-10-21 20:09:36,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1529915708] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 20:09:36,808 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:09:36,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-21 20:09:36,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120242632] [2021-10-21 20:09:36,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:09:36,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:09:36,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:09:36,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:09:36,810 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-21 20:09:36,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:09:36,857 INFO L93 Difference]: Finished difference Result 56 states and 55 transitions. [2021-10-21 20:09:36,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:09:36,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 29 [2021-10-21 20:09:36,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:09:36,858 INFO L225 Difference]: With dead ends: 56 [2021-10-21 20:09:36,858 INFO L226 Difference]: Without dead ends: 37 [2021-10-21 20:09:36,859 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:09:36,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-21 20:09:36,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-10-21 20:09:36,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 21 states have (on average 1.0) internal successors, (21), 21 states have internal predecessors, (21), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-10-21 20:09:36,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 36 transitions. [2021-10-21 20:09:36,863 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 36 transitions. Word has length 29 [2021-10-21 20:09:36,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:09:36,863 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 36 transitions. [2021-10-21 20:09:36,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-21 20:09:36,863 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 36 transitions. [2021-10-21 20:09:36,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-21 20:09:36,864 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:09:36,865 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:09:36,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-21 20:09:37,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:09:37,077 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-21 20:09:37,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:09:37,077 INFO L82 PathProgramCache]: Analyzing trace with hash -548127480, now seen corresponding path program 1 times [2021-10-21 20:09:37,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:09:37,078 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1852502672] [2021-10-21 20:09:37,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:09:37,078 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:09:37,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:09:37,080 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:09:37,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-21 20:09:37,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:37,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-21 20:09:37,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:09:37,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 17 [2021-10-21 20:09:37,721 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 15 treesize of output 13 [2021-10-21 20:09:38,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:38,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:09:42,463 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_17| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_17| |c_#valid|) (exists ((v_~saved_device_20~0.base_121 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_17| (store |c_old(#valid)| v_~saved_device_20~0.base_121 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_~saved_device_20~0.base_121)))))))))))))))))) is different from false [2021-10-21 20:09:45,246 INFO L354 Elim1Store]: treesize reduction 15, result has 79.5 percent of original size [2021-10-21 20:09:45,246 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 79 treesize of output 127 [2021-10-21 20:09:45,957 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:09:45,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1852502672] [2021-10-21 20:09:45,958 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(not (= (store |old(#valid)| ~saved_device_20~0.base (_ bv0 1)) v_prenex_1))=(not (= (select v_prenex_1 v_antiDerIndex_entry0_2) (select (store |old(#valid)| ~saved_device_20~0.base (_ bv0 1)) v_antiDerIndex_entry0_2)))} [2021-10-21 20:09:45,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1122555891] [2021-10-21 20:09:45,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:09:45,958 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-21 20:09:45,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/cvc4 [2021-10-21 20:09:45,964 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-21 20:09:45,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-10-21 20:09:46,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:09:46,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-21 20:09:46,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:09:46,665 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-21 20:09:46,665 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 27 treesize of output 30 [2021-10-21 20:09:49,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 17 [2021-10-21 20:09:49,114 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 14 treesize of output 12 [2021-10-21 20:09:51,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:09:51,322 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:10:10,616 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_25| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_25| (store |c_#valid| c_~saved_device_20~0.base (_ bv0 1))) (exists ((v_~saved_device_20~0.base_121 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_25| (store |c_old(#valid)| v_~saved_device_20~0.base_121 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_~saved_device_20~0.base_121)))))))))))))))))) is different from false [2021-10-21 20:10:10,699 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_26| v_~saved_device_20~0.base_121 (_ bv0 1)) v_prenex_3)=(= (select v_prenex_3 v_antiDerIndex_entry0_3) (select (store |v_old(#valid)_BEFORE_CALL_26| v_~saved_device_20~0.base_121 (_ bv0 1)) v_antiDerIndex_entry0_3))} [2021-10-21 20:10:10,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840202554] [2021-10-21 20:10:10,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:10:10,700 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:10:10,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:10:10,705 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:10:10,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-21 20:10:11,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:10:11,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-21 20:10:11,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:10:11,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 19 [2021-10-21 20:10:11,372 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 16 treesize of output 14 [2021-10-21 20:10:11,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:10:11,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:10:16,039 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_33| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_33| |c_#valid|) (exists ((v_~saved_device_20~0.base_121 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_33| (store |c_old(#valid)| v_~saved_device_20~0.base_121 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_~saved_device_20~0.base_121)))))))))))))))))) is different from false [2021-10-21 20:10:16,258 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_33| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_33| (store |c_#valid| c_~saved_device_20~0.base (_ bv0 1))) (exists ((v_~saved_device_20~0.base_121 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_33| (store |c_old(#valid)| v_~saved_device_20~0.base_121 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_~saved_device_20~0.base_121)))))))))))))))))) is different from false [2021-10-21 20:10:16,341 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_34| v_~saved_device_20~0.base_121 (_ bv0 1)) v_prenex_5)=(= (select v_prenex_5 v_antiDerIndex_entry0_4) (select (store |v_old(#valid)_BEFORE_CALL_34| v_~saved_device_20~0.base_121 (_ bv0 1)) v_antiDerIndex_entry0_4))} [2021-10-21 20:10:16,341 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:10:16,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-21 20:10:16,341 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-21 20:10:16,341 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-10-21 20:10:16,353 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-21 20:10:16,356 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-21 20:10:16,356 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-21 20:10:16,356 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-21 20:10:16,357 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-21 20:10:16,357 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-21 20:10:16,357 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-21 20:10:16,357 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-21 20:10:16,357 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-21 20:10:16,358 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-21 20:10:16,358 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-21 20:10:16,358 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-21 20:10:16,358 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-21 20:10:16,359 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-21 20:10:16,359 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-21 20:10:16,359 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-21 20:10:16,359 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-21 20:10:16,359 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-21 20:10:16,360 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-21 20:10:16,360 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-21 20:10:16,360 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-21 20:10:16,360 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-21 20:10:16,360 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-21 20:10:16,361 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-21 20:10:16,361 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-21 20:10:16,361 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-21 20:10:16,361 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-21 20:10:16,362 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-21 20:10:16,362 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-21 20:10:16,362 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-21 20:10:16,362 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-21 20:10:16,362 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-21 20:10:16,363 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-21 20:10:16,363 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-21 20:10:16,363 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-21 20:10:16,363 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-21 20:10:16,364 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-21 20:10:16,364 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-21 20:10:16,364 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-21 20:10:16,364 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-21 20:10:16,364 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-21 20:10:16,365 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-21 20:10:16,365 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-21 20:10:16,365 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:10:16,365 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:10:16,366 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:10:16,366 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:10:16,366 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:10:16,366 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:10:16,367 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-21 20:10:16,367 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-21 20:10:16,367 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-21 20:10:16,367 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-21 20:10:16,367 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-21 20:10:16,368 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-21 20:10:16,368 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-21 20:10:16,368 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-21 20:10:16,368 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:10:16,369 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:10:16,369 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:10:16,369 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:10:16,369 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:10:16,370 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:10:16,370 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-21 20:10:16,370 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-21 20:10:16,370 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-21 20:10:16,370 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-21 20:10:16,371 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-21 20:10:16,371 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-21 20:10:16,371 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-21 20:10:16,371 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-21 20:10:16,372 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_20Err0ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:10:16,372 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_20Err1ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:10:16,372 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_20Err2ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 20:10:16,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-10-21 20:10:16,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-21 20:10:16,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-21 20:10:16,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:10:16,989 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 20:10:16,993 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-21 20:10:17,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 08:10:17 BoogieIcfgContainer [2021-10-21 20:10:17,004 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 20:10:17,005 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:10:17,005 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:10:17,005 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:10:17,006 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:09:25" (3/4) ... [2021-10-21 20:10:17,009 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 20:10:17,010 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:10:17,011 INFO L168 Benchmark]: Toolchain (without parser) took 54661.25 ms. Allocated memory was 71.3 MB in the beginning and 121.6 MB in the end (delta: 50.3 MB). Free memory was 46.8 MB in the beginning and 36.6 MB in the end (delta: 10.2 MB). Peak memory consumption was 60.7 MB. Max. memory is 16.1 GB. [2021-10-21 20:10:17,011 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 54.5 MB. Free memory is still 34.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:10:17,012 INFO L168 Benchmark]: CACSL2BoogieTranslator took 856.61 ms. Allocated memory is still 71.3 MB. Free memory was 46.6 MB in the beginning and 35.3 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 20:10:17,013 INFO L168 Benchmark]: Boogie Preprocessor took 122.11 ms. Allocated memory is still 71.3 MB. Free memory was 35.3 MB in the beginning and 30.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:10:17,013 INFO L168 Benchmark]: RCFGBuilder took 1697.63 ms. Allocated memory was 71.3 MB in the beginning and 100.7 MB in the end (delta: 29.4 MB). Free memory was 30.2 MB in the beginning and 75.3 MB in the end (delta: -45.1 MB). Peak memory consumption was 13.3 MB. Max. memory is 16.1 GB. [2021-10-21 20:10:17,014 INFO L168 Benchmark]: TraceAbstraction took 51970.44 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 74.9 MB in the beginning and 36.6 MB in the end (delta: 38.4 MB). Peak memory consumption was 60.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:10:17,014 INFO L168 Benchmark]: Witness Printer took 5.30 ms. Allocated memory is still 121.6 MB. Free memory is still 36.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:10:17,017 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 54.5 MB. Free memory is still 34.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 856.61 ms. Allocated memory is still 71.3 MB. Free memory was 46.6 MB in the beginning and 35.3 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 122.11 ms. Allocated memory is still 71.3 MB. Free memory was 35.3 MB in the beginning and 30.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1697.63 ms. Allocated memory was 71.3 MB in the beginning and 100.7 MB in the end (delta: 29.4 MB). Free memory was 30.2 MB in the beginning and 75.3 MB in the end (delta: -45.1 MB). Peak memory consumption was 13.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 51970.44 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 74.9 MB in the beginning and 36.6 MB in the end (delta: 38.4 MB). Peak memory consumption was 60.4 MB. Max. memory is 16.1 GB. * Witness Printer took 5.30 ms. Allocated memory is still 121.6 MB. Free memory is still 36.6 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 789]: 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 789. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L761] struct ldv_device *saved_device_20; [L790] CALL entry_point() [L785] CALL alloc_20() [L772] CALL, EXPR ldv_malloc(sizeof(struct A20)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L772] RET, EXPR ldv_malloc(sizeof(struct A20)) [L772] struct A20 *p = (struct A20*)ldv_malloc(sizeof(struct A20)); [L773] COND TRUE \read(*p) [L774] CALL ldv_register_device(&p->dev) [L763] saved_device_20 = dev [L774] RET ldv_register_device(&p->dev) [L785] RET alloc_20() [L786] CALL free_20() [L778] CALL, EXPR ldv_get_device() [L766] return saved_device_20; [L778] RET, EXPR ldv_get_device() [L778] struct ldv_device *dev = ldv_get_device(); [L779] COND TRUE \read(*dev) [L780] const typeof( ((struct A20 *)0)->dev ) *__mptr = (dev); [L780] struct A20 *p = ({ const typeof( ((struct A20 *)0)->dev ) *__mptr = (dev); (struct A20 *)( (char *)__mptr - ((size_t) &((struct A20 *)0)->dev) );}); [L781] free(p) [L781] free(p) [L781] free(p) [L786] RET free_20() [L787] saved_device_20 = 0 [L790] 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: 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: 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: 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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 52 procedures, 356 locations, 74 error locations. Started 1 CEGAR loops. OverallTime: 51883.4ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 52.7ms, AutomataDifference: 2901.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 26.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 279 SDtfs, 255 SDslu, 1010 SDs, 0 SdLazy, 938 SolverSat, 109 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1422.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 416 GetRequests, 321 SyntacticMatches, 6 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 2245.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred in iteration=0, InterpolantAutomatonStates: 73, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 106.8ms AutomataMinimizationTime, 7 MinimizatonAttempts, 38 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 123.2ms SsaConstructionTime, 324.2ms SatisfiabilityAnalysisTime, 5291.1ms InterpolantComputationTime, 194 NumberOfCodeBlocks, 194 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 374 ConstructedInterpolants, 6 QuantifiedInterpolants, 1620 SizeOfPredicates, 22 NumberOfNonLiveVariables, 791 ConjunctsInSsa, 82 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-21 20:10:17,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b1396d9-2f09-40bf-a87f-2cab57739c82/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...