./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_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_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/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_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/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_c6be5a4d-9ea9-4101-8841-a808893f7947/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 27e059eb1633b1ab9c045484375455e2667fa3360a55d0bc53eccfa53fe7600f ................................................................................................................................... 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_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/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_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/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_c6be5a4d-9ea9-4101-8841-a808893f7947/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 27e059eb1633b1ab9c045484375455e2667fa3360a55d0bc53eccfa53fe7600f ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:24:27,691 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:24:27,694 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:24:27,731 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:24:27,732 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:24:27,733 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:24:27,735 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:24:27,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:24:27,740 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:24:27,741 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:24:27,742 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:24:27,744 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:24:27,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:24:27,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:24:27,747 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:24:27,749 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:24:27,750 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:24:27,751 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:24:27,753 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:24:27,756 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:24:27,758 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:24:27,760 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:24:27,761 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:24:27,762 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:24:27,766 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:24:27,767 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:24:27,767 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:24:27,769 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:24:27,769 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:24:27,770 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:24:27,771 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:24:27,772 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:24:27,773 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:24:27,774 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:24:27,775 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:24:27,775 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:24:27,776 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:24:27,777 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:24:27,777 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:24:27,778 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:24:27,779 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:24:27,780 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-21 19:24:27,824 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:24:27,824 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:24:27,825 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:24:27,825 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:24:27,827 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:24:27,827 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:24:27,827 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:24:27,828 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:24:27,828 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:24:27,829 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:24:27,829 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:24:27,829 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:24:27,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:24:27,830 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-21 19:24:27,830 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-21 19:24:27,831 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-21 19:24:27,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:24:27,831 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-21 19:24:27,832 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:24:27,835 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:24:27,835 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:24:27,836 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:24:27,836 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:24:27,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:24:27,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:24:27,837 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:24:27,837 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:24:27,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:24:27,838 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:24:27,838 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_c6be5a4d-9ea9-4101-8841-a808893f7947/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27e059eb1633b1ab9c045484375455e2667fa3360a55d0bc53eccfa53fe7600f [2021-10-21 19:24:28,103 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:24:28,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:24:28,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:24:28,131 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:24:28,133 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:24:28,135 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i [2021-10-21 19:24:28,238 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/data/2b6384a24/04cfe9f0e7cf443f8d6357c65e444940/FLAG69cdb921f [2021-10-21 19:24:28,798 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:24:28,798 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i [2021-10-21 19:24:28,814 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/data/2b6384a24/04cfe9f0e7cf443f8d6357c65e444940/FLAG69cdb921f [2021-10-21 19:24:29,080 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/data/2b6384a24/04cfe9f0e7cf443f8d6357c65e444940 [2021-10-21 19:24:29,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:24:29,085 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-21 19:24:29,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:24:29,087 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:24:29,091 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:24:29,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:24:29" (1/1) ... [2021-10-21 19:24:29,093 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@248344c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:24:29, skipping insertion in model container [2021-10-21 19:24:29,093 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:24:29" (1/1) ... [2021-10-21 19:24:29,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:24:29,142 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:24:29,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:24:29,660 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-21 19:24:29,660 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@88f8349 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:24:29, skipping insertion in model container [2021-10-21 19:24:29,660 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:24:29,660 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-21 19:24:29,662 INFO L168 Benchmark]: Toolchain (without parser) took 576.23 ms. Allocated memory is still 121.6 MB. Free memory was 89.3 MB in the beginning and 88.9 MB in the end (delta: 458.4 kB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:24:29,663 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 121.6 MB. Free memory is still 75.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:24:29,664 INFO L168 Benchmark]: CACSL2BoogieTranslator took 573.82 ms. Allocated memory is still 121.6 MB. Free memory was 89.0 MB in the beginning and 88.9 MB in the end (delta: 171.4 kB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:24:29,665 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 121.6 MB. Free memory is still 75.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 573.82 ms. Allocated memory is still 121.6 MB. Free memory was 89.0 MB in the beginning and 88.9 MB in the end (delta: 171.4 kB). Peak memory consumption was 6.3 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 19:24:31,969 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:24:31,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:24:32,026 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:24:32,027 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:24:32,032 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:24:32,034 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:24:32,040 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:24:32,043 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:24:32,049 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:24:32,050 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:24:32,052 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:24:32,053 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:24:32,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:24:32,057 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:24:32,062 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:24:32,064 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:24:32,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:24:32,068 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:24:32,075 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:24:32,077 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:24:32,079 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:24:32,082 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:24:32,084 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:24:32,093 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:24:32,093 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:24:32,094 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:24:32,096 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:24:32,096 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:24:32,098 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:24:32,098 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:24:32,099 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:24:32,101 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:24:32,102 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:24:32,104 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:24:32,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:24:32,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:24:32,112 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:24:32,112 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:24:32,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:24:32,115 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:24:32,121 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-21 19:24:32,165 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:24:32,166 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:24:32,167 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:24:32,167 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:24:32,169 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:24:32,169 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:24:32,169 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:24:32,170 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:24:32,170 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:24:32,170 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:24:32,171 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:24:32,172 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:24:32,172 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:24:32,172 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-21 19:24:32,173 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-21 19:24:32,173 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-21 19:24:32,173 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:24:32,173 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-21 19:24:32,174 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-21 19:24:32,174 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-21 19:24:32,174 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:24:32,174 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:24:32,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:24:32,175 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:24:32,175 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:24:32,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:24:32,176 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:24:32,176 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:24:32,177 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-21 19:24:32,177 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-21 19:24:32,177 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:24:32,177 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-21 19:24:32,178 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_c6be5a4d-9ea9-4101-8841-a808893f7947/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27e059eb1633b1ab9c045484375455e2667fa3360a55d0bc53eccfa53fe7600f [2021-10-21 19:24:32,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:24:32,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:24:32,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:24:32,597 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:24:32,598 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:24:32,599 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i [2021-10-21 19:24:32,674 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/data/f695f648a/ccc3355eb2294f8d96b91570b266ac15/FLAG5e71434b9 [2021-10-21 19:24:33,267 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:24:33,267 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i [2021-10-21 19:24:33,305 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/data/f695f648a/ccc3355eb2294f8d96b91570b266ac15/FLAG5e71434b9 [2021-10-21 19:24:33,547 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/data/f695f648a/ccc3355eb2294f8d96b91570b266ac15 [2021-10-21 19:24:33,550 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:24:33,551 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-21 19:24:33,552 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:24:33,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:24:33,560 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:24:33,561 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:24:33" (1/1) ... [2021-10-21 19:24:33,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@652b4e02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:24:33, skipping insertion in model container [2021-10-21 19:24:33,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:24:33" (1/1) ... [2021-10-21 19:24:33,571 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:24:33,639 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:24:34,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:24:34,131 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-21 19:24:34,150 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:24:34,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:24:34,248 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:24:34,295 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:24:34,352 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:24:34,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:24:34 WrapperNode [2021-10-21 19:24:34,353 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:24:34,355 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:24:34,355 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:24:34,355 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:24:34,366 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:24:34" (1/1) ... [2021-10-21 19:24:34,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:24:34" (1/1) ... [2021-10-21 19:24:34,416 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:24:34" (1/1) ... [2021-10-21 19:24:34,416 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:24:34" (1/1) ... [2021-10-21 19:24:34,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:24:34" (1/1) ... [2021-10-21 19:24:34,455 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:24:34" (1/1) ... [2021-10-21 19:24:34,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:24:34" (1/1) ... [2021-10-21 19:24:34,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:24:34,474 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:24:34,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:24:34,490 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:24:34,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:24:34" (1/1) ... [2021-10-21 19:24:34,498 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:24:34,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:24:34,528 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:24:34,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:24:34,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-21 19:24:34,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:24:34,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-21 19:24:34,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-21 19:24:34,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-21 19:24:34,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-21 19:24:34,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-21 19:24:34,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-21 19:24:34,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-21 19:24:34,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-21 19:24:34,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-21 19:24:34,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-21 19:24:34,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-21 19:24:34,575 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-21 19:24:34,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-21 19:24:34,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-21 19:24:34,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-21 19:24:34,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-21 19:24:34,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-21 19:24:34,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-21 19:24:34,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-21 19:24:34,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-21 19:24:34,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-21 19:24:34,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-21 19:24:34,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-21 19:24:34,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-21 19:24:34,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-21 19:24:34,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-21 19:24:34,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-21 19:24:34,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-21 19:24:34,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-21 19:24:34,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-21 19:24:34,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-21 19:24:34,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-21 19:24:34,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-21 19:24:34,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-21 19:24:34,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-21 19:24:34,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-21 19:24:34,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-21 19:24:34,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-21 19:24:34,586 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-21 19:24:34,586 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-21 19:24:34,586 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-21 19:24:34,587 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-21 19:24:34,587 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-21 19:24:34,587 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-21 19:24:34,588 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-21 19:24:34,589 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-21 19:24:34,589 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-21 19:24:34,589 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-21 19:24:34,590 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-21 19:24:34,590 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-21 19:24:34,590 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-21 19:24:34,590 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-21 19:24:34,590 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-21 19:24:34,590 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-21 19:24:34,591 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-21 19:24:34,591 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-21 19:24:34,591 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-21 19:24:34,592 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-21 19:24:34,592 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-21 19:24:34,592 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-21 19:24:34,594 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-21 19:24:34,594 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-21 19:24:34,595 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-21 19:24:34,595 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-21 19:24:34,595 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-21 19:24:34,596 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-21 19:24:34,596 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-21 19:24:34,596 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-21 19:24:34,596 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-21 19:24:34,596 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-21 19:24:34,597 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-21 19:24:34,597 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-21 19:24:34,597 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-21 19:24:34,597 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-21 19:24:34,597 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-21 19:24:34,598 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-21 19:24:34,599 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-21 19:24:34,599 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-21 19:24:34,599 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-21 19:24:34,599 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-21 19:24:34,599 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-21 19:24:34,600 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-21 19:24:34,600 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-21 19:24:34,600 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-21 19:24:34,600 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-21 19:24:34,600 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-21 19:24:34,601 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-21 19:24:34,601 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-21 19:24:34,601 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-21 19:24:34,601 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-21 19:24:34,601 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-21 19:24:34,601 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-21 19:24:34,602 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-21 19:24:34,602 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-21 19:24:34,602 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-21 19:24:34,602 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-21 19:24:34,602 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-21 19:24:34,603 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-21 19:24:34,603 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-21 19:24:34,603 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-21 19:24:34,604 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-21 19:24:34,604 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-21 19:24:34,604 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-21 19:24:34,604 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-21 19:24:34,604 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-21 19:24:34,604 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-21 19:24:34,605 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-21 19:24:34,605 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-21 19:24:34,605 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-21 19:24:34,605 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-21 19:24:34,605 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-21 19:24:34,606 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-21 19:24:34,606 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-21 19:24:34,606 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-21 19:24:34,606 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-21 19:24:34,606 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-21 19:24:34,606 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-21 19:24:34,607 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-21 19:24:34,607 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-21 19:24:34,608 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-21 19:24:34,608 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-21 19:24:34,609 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-21 19:24:34,612 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-21 19:24:34,612 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-21 19:24:34,613 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-21 19:24:34,613 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-21 19:24:34,614 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-21 19:24:34,615 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-21 19:24:34,615 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-21 19:24:34,616 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-21 19:24:34,617 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-21 19:24:34,622 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-21 19:24:34,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-21 19:24:34,622 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-21 19:24:34,622 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-21 19:24:34,622 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-21 19:24:34,623 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-21 19:24:34,623 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-21 19:24:34,623 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-21 19:24:34,623 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-21 19:24:34,623 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-21 19:24:34,623 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-21 19:24:34,624 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-21 19:24:34,624 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-21 19:24:34,624 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-21 19:24:34,624 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-21 19:24:34,624 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-21 19:24:34,624 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-21 19:24:34,625 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-21 19:24:34,625 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-21 19:24:34,625 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-21 19:24:34,625 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-21 19:24:34,625 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-21 19:24:34,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-21 19:24:34,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-21 19:24:34,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-21 19:24:34,626 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-21 19:24:34,626 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-21 19:24:34,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-21 19:24:34,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-21 19:24:34,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-21 19:24:34,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-21 19:24:34,627 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-21 19:24:34,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-21 19:24:34,627 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-21 19:24:34,627 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-21 19:24:34,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-21 19:24:34,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-21 19:24:34,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-21 19:24:34,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-21 19:24:34,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-21 19:24:34,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-21 19:24:34,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-21 19:24:34,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-21 19:24:34,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 19:24:34,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-21 19:24:34,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-21 19:24:34,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-21 19:24:34,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-21 19:24:34,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-21 19:24:34,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-21 19:24:34,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-21 19:24:34,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-21 19:24:34,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-21 19:24:34,630 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-21 19:24:34,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-21 19:24:34,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-21 19:24:34,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-21 19:24:34,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-21 19:24:34,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-21 19:24:34,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-21 19:24:34,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-21 19:24:34,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-21 19:24:34,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-21 19:24:34,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-21 19:24:34,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-21 19:24:34,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-21 19:24:34,633 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-21 19:24:34,633 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-21 19:24:34,633 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-21 19:24:34,633 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-21 19:24:34,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-21 19:24:34,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:24:34,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-21 19:24:34,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:24:34,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-21 19:24:34,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-21 19:24:34,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-21 19:24:34,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-21 19:24:34,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-21 19:24:35,213 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-21 19:24:35,581 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-21 19:24:35,928 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:24:35,928 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-10-21 19:24:35,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:24:35 BoogieIcfgContainer [2021-10-21 19:24:35,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:24:35,933 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:24:35,933 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:24:35,936 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:24:35,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:24:33" (1/3) ... [2021-10-21 19:24:35,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b56cf5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:24:35, skipping insertion in model container [2021-10-21 19:24:35,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:24:34" (2/3) ... [2021-10-21 19:24:35,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b56cf5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:24:35, skipping insertion in model container [2021-10-21 19:24:35,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:24:35" (3/3) ... [2021-10-21 19:24:35,939 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test18_2.i [2021-10-21 19:24:35,945 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:24:35,945 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 81 error locations. [2021-10-21 19:24:35,987 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:24:35,993 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 19:24:35,994 INFO L340 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2021-10-21 19:24:36,010 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 66 states have (on average 1.606060606060606) internal successors, (106), 94 states have internal predecessors, (106), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-10-21 19:24:36,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-21 19:24:36,018 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:24:36,019 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:24:36,019 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-21 19:24:36,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:24:36,025 INFO L82 PathProgramCache]: Analyzing trace with hash -114808450, now seen corresponding path program 1 times [2021-10-21 19:24:36,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:24:36,037 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1680328867] [2021-10-21 19:24:36,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:24:36,038 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:24:36,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:24:36,042 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:24:36,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-21 19:24:36,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:24:36,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:24:36,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:24:36,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:24:36,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:24:36,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:24:36,613 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:24:36,613 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1680328867] [2021-10-21 19:24:36,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1680328867] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:24:36,619 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:24:36,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-21 19:24:36,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609926918] [2021-10-21 19:24:36,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:24:36,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:24:36,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:24:36,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:24:36,655 INFO L87 Difference]: Start difference. First operand has 117 states, 66 states have (on average 1.606060606060606) internal successors, (106), 94 states have internal predecessors, (106), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 19:24:36,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:24:36,832 INFO L93 Difference]: Finished difference Result 78 states and 90 transitions. [2021-10-21 19:24:36,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:24:36,834 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 17 [2021-10-21 19:24:36,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:24:36,846 INFO L225 Difference]: With dead ends: 78 [2021-10-21 19:24:36,847 INFO L226 Difference]: Without dead ends: 75 [2021-10-21 19:24:36,848 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.7ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:24:36,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-10-21 19:24:36,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 48. [2021-10-21 19:24:36,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 38 states have internal predecessors, (43), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-21 19:24:36,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2021-10-21 19:24:36,888 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 17 [2021-10-21 19:24:36,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:24:36,888 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2021-10-21 19:24:36,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 19:24:36,889 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2021-10-21 19:24:36,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-21 19:24:36,890 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:24:36,890 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:24:36,898 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-21 19:24:37,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:24:37,091 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-21 19:24:37,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:24:37,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1628001885, now seen corresponding path program 1 times [2021-10-21 19:24:37,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:24:37,093 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [512692399] [2021-10-21 19:24:37,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:24:37,093 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:24:37,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:24:37,095 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:24:37,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-21 19:24:37,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:24:37,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:24:37,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:24:37,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:24:37,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:24:37,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:24:37,476 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:24:37,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [512692399] [2021-10-21 19:24:37,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [512692399] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:24:37,477 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:24:37,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-21 19:24:37,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915519561] [2021-10-21 19:24:37,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:24:37,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:24:37,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:24:37,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:24:37,487 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-21 19:24:37,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:24:37,578 INFO L93 Difference]: Finished difference Result 76 states and 86 transitions. [2021-10-21 19:24:37,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:24:37,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 17 [2021-10-21 19:24:37,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:24:37,580 INFO L225 Difference]: With dead ends: 76 [2021-10-21 19:24:37,580 INFO L226 Difference]: Without dead ends: 73 [2021-10-21 19:24:37,580 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:24:37,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-10-21 19:24:37,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 54. [2021-10-21 19:24:37,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 33 states have (on average 1.5151515151515151) internal successors, (50), 43 states have internal predecessors, (50), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2021-10-21 19:24:37,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2021-10-21 19:24:37,589 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 17 [2021-10-21 19:24:37,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:24:37,589 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2021-10-21 19:24:37,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-21 19:24:37,590 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2021-10-21 19:24:37,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-21 19:24:37,591 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:24:37,591 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:24:37,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-21 19:24:37,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:24:37,804 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-21 19:24:37,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:24:37,805 INFO L82 PathProgramCache]: Analyzing trace with hash 735393073, now seen corresponding path program 1 times [2021-10-21 19:24:37,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:24:37,805 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2145605475] [2021-10-21 19:24:37,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:24:37,806 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:24:37,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:24:37,807 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:24:37,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-21 19:24:37,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:24:37,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:24:37,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:24:38,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:24:38,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:24:38,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:24:38,167 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:24:38,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2145605475] [2021-10-21 19:24:38,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2145605475] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:24:38,167 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:24:38,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-21 19:24:38,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852230822] [2021-10-21 19:24:38,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 19:24:38,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:24:38,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:24:38,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:24:38,170 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-10-21 19:24:38,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:24:38,262 INFO L93 Difference]: Finished difference Result 92 states and 111 transitions. [2021-10-21 19:24:38,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:24:38,267 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 18 [2021-10-21 19:24:38,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:24:38,269 INFO L225 Difference]: With dead ends: 92 [2021-10-21 19:24:38,269 INFO L226 Difference]: Without dead ends: 92 [2021-10-21 19:24:38,269 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 34.7ms TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:24:38,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-10-21 19:24:38,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 63. [2021-10-21 19:24:38,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 40 states have (on average 1.5) internal successors, (60), 51 states have internal predecessors, (60), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2021-10-21 19:24:38,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 80 transitions. [2021-10-21 19:24:38,284 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 80 transitions. Word has length 18 [2021-10-21 19:24:38,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:24:38,284 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 80 transitions. [2021-10-21 19:24:38,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-10-21 19:24:38,285 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 80 transitions. [2021-10-21 19:24:38,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-21 19:24:38,286 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:24:38,286 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:24:38,296 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-21 19:24:38,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:24:38,487 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-21 19:24:38,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:24:38,488 INFO L82 PathProgramCache]: Analyzing trace with hash -529470855, now seen corresponding path program 1 times [2021-10-21 19:24:38,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:24:38,489 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [350622261] [2021-10-21 19:24:38,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:24:38,489 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:24:38,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:24:38,490 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:24:38,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-21 19:24:38,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:24:38,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 19:24:38,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:24:38,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-21 19:24:38,886 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-21 19:24:38,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 26 [2021-10-21 19:24:38,926 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:24:38,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:24:39,218 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:24:39,219 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:24:39,219 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [350622261] [2021-10-21 19:24:39,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [350622261] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-21 19:24:39,219 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:24:39,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2021-10-21 19:24:39,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510911521] [2021-10-21 19:24:39,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 19:24:39,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:24:39,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:24:39,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:24:39,221 INFO L87 Difference]: Start difference. First operand 63 states and 80 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-21 19:24:39,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:24:39,957 INFO L93 Difference]: Finished difference Result 163 states and 188 transitions. [2021-10-21 19:24:39,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-21 19:24:39,957 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 23 [2021-10-21 19:24:39,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:24:39,960 INFO L225 Difference]: With dead ends: 163 [2021-10-21 19:24:39,960 INFO L226 Difference]: Without dead ends: 163 [2021-10-21 19:24:39,961 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 34 SyntacticMatches, 6 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 212.4ms TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-10-21 19:24:39,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-10-21 19:24:39,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 79. [2021-10-21 19:24:39,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 55 states have (on average 1.509090909090909) internal successors, (83), 64 states have internal predecessors, (83), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (12), 9 states have call predecessors, (12), 7 states have call successors, (12) [2021-10-21 19:24:39,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 103 transitions. [2021-10-21 19:24:39,973 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 103 transitions. Word has length 23 [2021-10-21 19:24:39,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:24:39,974 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 103 transitions. [2021-10-21 19:24:39,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-21 19:24:39,974 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 103 transitions. [2021-10-21 19:24:39,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-21 19:24:39,975 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:24:39,975 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:24:39,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:24:40,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:24:40,187 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting entry_pointErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-21 19:24:40,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:24:40,187 INFO L82 PathProgramCache]: Analyzing trace with hash -529470854, now seen corresponding path program 1 times [2021-10-21 19:24:40,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:24:40,188 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1968723025] [2021-10-21 19:24:40,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:24:40,188 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:24:40,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:24:40,189 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:24:40,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-21 19:24:40,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:24:40,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-21 19:24:40,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:24:40,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-21 19:24:40,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-21 19:24:42,773 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-21 19:24:42,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-10-21 19:24:42,787 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-21 19:24:42,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 26 [2021-10-21 19:24:42,868 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:24:42,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:24:53,767 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ldv_malloc_#res.base_35| (_ BitVec 32)) (v_entry_point_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_entry_point_~array~0.base_BEFORE_CALL_4 (_ BitVec 32)) (v_entry_point_~array~0.offset_BEFORE_CALL_2 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_ldv_malloc_#res.base_35|))))) (exists ((|v_ldv_malloc_#res.base_34| (_ BitVec 32))) (and (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_ldv_malloc_#res.base_34|)))))) (or (exists ((v_ldv_malloc_~size_31 (_ BitVec 32))) (not (bvule (bvadd (_ bv4 32) (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_entry_point_~array~0.offset_BEFORE_CALL_2) (select (store |c_old(#length)| |v_ldv_malloc_#res.base_34| v_ldv_malloc_~size_31) v_entry_point_~array~0.base_BEFORE_CALL_4)))) (not (let ((.cse0 (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (bvule (bvadd .cse0 v_entry_point_~array~0.offset_BEFORE_CALL_2) (bvadd (_ bv4 32) .cse0 v_entry_point_~array~0.offset_BEFORE_CALL_2))))))) (and (forall ((ldv_malloc_~size (_ BitVec 32))) (bvule (bvadd (_ bv4 32) (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_entry_point_~array~0.offset_BEFORE_CALL_2) (select (store |c_#length| |v_ldv_malloc_#res.base_35| ldv_malloc_~size) v_entry_point_~array~0.base_BEFORE_CALL_4))) (let ((.cse1 (bvmul v_entry_point_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (bvule (bvadd .cse1 v_entry_point_~array~0.offset_BEFORE_CALL_2) (bvadd (_ bv4 32) .cse1 v_entry_point_~array~0.offset_BEFORE_CALL_2)))))) is different from false [2021-10-21 19:24:55,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 27 [2021-10-21 19:24:56,461 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 27 treesize of output 25 [2021-10-21 19:24:56,620 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-10-21 19:24:56,621 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:24:56,621 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1968723025] [2021-10-21 19:24:56,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1968723025] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-21 19:24:56,621 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:24:56,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-10-21 19:24:56,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655405163] [2021-10-21 19:24:56,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-21 19:24:56,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:24:56,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-21 19:24:56,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=4, NotChecked=30, Total=306 [2021-10-21 19:24:56,625 INFO L87 Difference]: Start difference. First operand 79 states and 103 transitions. Second operand has 18 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 16 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-21 19:26:07,162 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (bvmul c_entry_point_~i~0 (_ bv4 32)))) (let ((.cse1 (bvadd (_ bv4 32) .cse0 c_entry_point_~array~0.offset))) (and (bvule (bvadd .cse0 c_entry_point_~array~0.offset) .cse1) (forall ((|v_ldv_malloc_#res.base_34| (_ BitVec 32))) (or (and (let ((.cse2 (bvmul c_entry_point_~i~0 (_ bv4 32)))) (bvule (bvadd .cse2 c_entry_point_~array~0.offset) (bvadd (_ bv4 32) .cse2 c_entry_point_~array~0.offset))) (forall ((v_ldv_malloc_~size_31 (_ BitVec 32))) (bvule (bvadd (_ bv4 32) (bvmul c_entry_point_~i~0 (_ bv4 32)) c_entry_point_~array~0.offset) (select (store |c_#length| |v_ldv_malloc_#res.base_34| v_ldv_malloc_~size_31) c_entry_point_~array~0.base)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ldv_malloc_#res.base_34|)))))) (= |c_old(#valid)| |c_#valid|) (= |c_#length| |c_old(#length)|) (= c_entry_point_~len~0 (_ bv10 32)) (bvule .cse1 (select |c_#length| c_entry_point_~array~0.base))))) is different from false [2021-10-21 19:26:45,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:26:45,651 INFO L93 Difference]: Finished difference Result 283 states and 342 transitions. [2021-10-21 19:26:45,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-21 19:26:45,652 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 16 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 23 [2021-10-21 19:26:45,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:26:45,655 INFO L225 Difference]: With dead ends: 283 [2021-10-21 19:26:45,655 INFO L226 Difference]: Without dead ends: 283 [2021-10-21 19:26:45,656 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 32107.9ms TimeCoverageRelationStatistics Valid=174, Invalid=816, Unknown=10, NotChecked=122, Total=1122 [2021-10-21 19:26:45,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2021-10-21 19:26:45,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 102. [2021-10-21 19:26:45,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 76 states have (on average 1.486842105263158) internal successors, (113), 85 states have internal predecessors, (113), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (16), 11 states have call predecessors, (16), 9 states have call successors, (16) [2021-10-21 19:26:45,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 139 transitions. [2021-10-21 19:26:45,676 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 139 transitions. Word has length 23 [2021-10-21 19:26:45,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:26:45,677 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 139 transitions. [2021-10-21 19:26:45,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 16 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-21 19:26:45,677 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 139 transitions. [2021-10-21 19:26:45,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-21 19:26:45,678 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:26:45,678 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:26:45,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:26:45,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:26:45,879 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-21 19:26:45,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:26:45,879 INFO L82 PathProgramCache]: Analyzing trace with hash -1035029480, now seen corresponding path program 1 times [2021-10-21 19:26:45,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:26:45,880 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1688490912] [2021-10-21 19:26:45,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:26:45,880 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:26:45,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:26:45,881 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:26:45,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-21 19:26:46,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:26:46,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 19:26:46,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:26:46,194 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:26:46,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:26:46,331 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 19:26:46,331 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:26:46,331 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1688490912] [2021-10-21 19:26:46,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1688490912] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-21 19:26:46,332 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:26:46,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-10-21 19:26:46,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305304962] [2021-10-21 19:26:46,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:26:46,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:26:46,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:26:46,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:26:46,333 INFO L87 Difference]: Start difference. First operand 102 states and 139 transitions. 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, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-21 19:26:46,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:26:46,387 INFO L93 Difference]: Finished difference Result 84 states and 109 transitions. [2021-10-21 19:26:46,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:26:46,388 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, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2021-10-21 19:26:46,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:26:46,389 INFO L225 Difference]: With dead ends: 84 [2021-10-21 19:26:46,389 INFO L226 Difference]: Without dead ends: 80 [2021-10-21 19:26:46,389 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.7ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:26:46,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-10-21 19:26:46,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-10-21 19:26:46,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 58 states have (on average 1.4827586206896552) internal successors, (86), 67 states have internal predecessors, (86), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2021-10-21 19:26:46,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 105 transitions. [2021-10-21 19:26:46,408 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 105 transitions. Word has length 23 [2021-10-21 19:26:46,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:26:46,408 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 105 transitions. [2021-10-21 19:26:46,409 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, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-21 19:26:46,409 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 105 transitions. [2021-10-21 19:26:46,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-21 19:26:46,410 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:26:46,410 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:26:46,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:26:46,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:26:46,612 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting entry_pointErr3REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-21 19:26:46,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:26:46,612 INFO L82 PathProgramCache]: Analyzing trace with hash -2015391035, now seen corresponding path program 1 times [2021-10-21 19:26:46,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:26:46,613 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [30121319] [2021-10-21 19:26:46,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:26:46,613 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:26:46,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:26:46,614 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:26:46,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-21 19:26:46,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:26:46,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:26:46,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:26:46,897 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 19:26:46,898 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:26:46,989 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 19:26:46,989 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:26:46,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [30121319] [2021-10-21 19:26:46,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [30121319] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:26:46,989 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:26:46,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-21 19:26:46,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709015836] [2021-10-21 19:26:46,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:26:46,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:26:46,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:26:46,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:26:46,991 INFO L87 Difference]: Start difference. First operand 80 states and 105 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 19:26:47,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:26:47,048 INFO L93 Difference]: Finished difference Result 95 states and 122 transitions. [2021-10-21 19:26:47,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:26:47,049 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2021-10-21 19:26:47,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:26:47,050 INFO L225 Difference]: With dead ends: 95 [2021-10-21 19:26:47,050 INFO L226 Difference]: Without dead ends: 95 [2021-10-21 19:26:47,050 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 33.1ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:26:47,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-10-21 19:26:47,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 84. [2021-10-21 19:26:47,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 62 states have (on average 1.435483870967742) internal successors, (89), 69 states have internal predecessors, (89), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (11), 9 states have call predecessors, (11), 7 states have call successors, (11) [2021-10-21 19:26:47,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 108 transitions. [2021-10-21 19:26:47,067 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 108 transitions. Word has length 25 [2021-10-21 19:26:47,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:26:47,067 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 108 transitions. [2021-10-21 19:26:47,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 19:26:47,067 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 108 transitions. [2021-10-21 19:26:47,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-21 19:26:47,068 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:26:47,069 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:26:47,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:26:47,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:26:47,276 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting entry_pointErr3REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-21 19:26:47,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:26:47,277 INFO L82 PathProgramCache]: Analyzing trace with hash -272580700, now seen corresponding path program 1 times [2021-10-21 19:26:47,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:26:47,277 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [963355349] [2021-10-21 19:26:47,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:26:47,277 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:26:47,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:26:47,278 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:26:47,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-21 19:26:47,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:26:47,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:26:47,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:26:47,608 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-21 19:26:47,608 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:26:47,710 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-21 19:26:47,710 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:26:47,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [963355349] [2021-10-21 19:26:47,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [963355349] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:26:47,711 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:26:47,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-21 19:26:47,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213145022] [2021-10-21 19:26:47,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 19:26:47,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:26:47,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:26:47,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:26:47,713 INFO L87 Difference]: Start difference. First operand 84 states and 108 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-10-21 19:26:47,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:26:47,804 INFO L93 Difference]: Finished difference Result 83 states and 99 transitions. [2021-10-21 19:26:47,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:26:47,805 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 25 [2021-10-21 19:26:47,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:26:47,807 INFO L225 Difference]: With dead ends: 83 [2021-10-21 19:26:47,807 INFO L226 Difference]: Without dead ends: 83 [2021-10-21 19:26:47,807 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 48.9ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:26:47,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-10-21 19:26:47,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 76. [2021-10-21 19:26:47,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 54 states have (on average 1.3518518518518519) internal successors, (73), 61 states have internal predecessors, (73), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (11), 9 states have call predecessors, (11), 7 states have call successors, (11) [2021-10-21 19:26:47,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 92 transitions. [2021-10-21 19:26:47,814 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 92 transitions. Word has length 25 [2021-10-21 19:26:47,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:26:47,814 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 92 transitions. [2021-10-21 19:26:47,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-10-21 19:26:47,815 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 92 transitions. [2021-10-21 19:26:47,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-21 19:26:47,816 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:26:47,816 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:26:47,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-21 19:26:48,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:26:48,036 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-21 19:26:48,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:26:48,036 INFO L82 PathProgramCache]: Analyzing trace with hash 139931782, now seen corresponding path program 1 times [2021-10-21 19:26:48,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:26:48,037 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1401209022] [2021-10-21 19:26:48,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:26:48,037 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:26:48,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:26:48,038 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:26:48,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-21 19:26:48,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:26:48,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:26:48,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:26:48,656 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:26:48,657 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:26:48,872 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 19:26:48,872 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:26:48,872 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1401209022] [2021-10-21 19:26:48,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1401209022] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-21 19:26:48,873 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:26:48,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 9 [2021-10-21 19:26:48,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826892557] [2021-10-21 19:26:48,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-21 19:26:48,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:26:48,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 19:26:48,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:26:48,875 INFO L87 Difference]: Start difference. First operand 76 states and 92 transitions. Second operand has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-21 19:26:49,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:26:49,139 INFO L93 Difference]: Finished difference Result 75 states and 90 transitions. [2021-10-21 19:26:49,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:26:49,140 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 26 [2021-10-21 19:26:49,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:26:49,141 INFO L225 Difference]: With dead ends: 75 [2021-10-21 19:26:49,141 INFO L226 Difference]: Without dead ends: 75 [2021-10-21 19:26:49,142 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 232.3ms TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-10-21 19:26:49,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-10-21 19:26:49,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2021-10-21 19:26:49,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 54 states have (on average 1.3148148148148149) internal successors, (71), 60 states have internal predecessors, (71), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (11), 9 states have call predecessors, (11), 7 states have call successors, (11) [2021-10-21 19:26:49,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 90 transitions. [2021-10-21 19:26:49,147 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 90 transitions. Word has length 26 [2021-10-21 19:26:49,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:26:49,147 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 90 transitions. [2021-10-21 19:26:49,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-21 19:26:49,148 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 90 transitions. [2021-10-21 19:26:49,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-21 19:26:49,149 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:26:49,149 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:26:49,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-21 19:26:49,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:26:49,360 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-21 19:26:49,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:26:49,361 INFO L82 PathProgramCache]: Analyzing trace with hash -1318116199, now seen corresponding path program 1 times [2021-10-21 19:26:49,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:26:49,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [866519390] [2021-10-21 19:26:49,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:26:49,361 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:26:49,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:26:49,362 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:26:49,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-21 19:26:49,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:26:49,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-21 19:26:49,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:26:49,929 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 19:26:49,929 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:27:00,724 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:27:00,724 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [866519390] [2021-10-21 19:27:00,725 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_9| v_entry_point_~array~0.base_33 (_ bv0 1)) v_prenex_3)=(= (select (store |v_old(#valid)_BEFORE_CALL_9| v_entry_point_~array~0.base_33 (_ bv0 1)) v_antiDerIndex_entry0_1) (select v_prenex_3 v_antiDerIndex_entry0_1))} [2021-10-21 19:27:00,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1057390144] [2021-10-21 19:27:00,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:27:00,725 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-21 19:27:00,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/cvc4 [2021-10-21 19:27:00,726 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-21 19:27:00,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-10-21 19:27:01,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:27:01,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-21 19:27:01,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:27:01,141 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-21 19:27:01,141 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 25 treesize of output 28 [2021-10-21 19:27:09,714 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 19:27:09,715 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:27:22,793 INFO L354 Elim1Store]: treesize reduction 16, result has 78.1 percent of original size [2021-10-21 19:27:22,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 68 treesize of output 115 [2021-10-21 19:27:23,919 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-21 19:27:23,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 32 [2021-10-21 19:27:26,679 INFO L354 Elim1Store]: treesize reduction 15, result has 79.5 percent of original size [2021-10-21 19:27:26,680 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 75 treesize of output 123 [2021-10-21 19:27:28,010 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(not (= (store |old(#valid)| |v_entry_point_#t~ret38.base_63| (_ bv0 1)) v_prenex_11))=(not (= (select (store |old(#valid)| |v_entry_point_#t~ret38.base_63| (_ bv0 1)) v_antiDerIndex_entry0_5) (select v_prenex_11 v_antiDerIndex_entry0_5)))} [2021-10-21 19:27:28,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99517212] [2021-10-21 19:27:28,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:27:28,010 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:27:28,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:27:28,012 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:27:28,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-21 19:27:28,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:27:28,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-21 19:27:28,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:27:28,617 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 19:27:28,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:27:32,853 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_19| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_19| |c_#valid|) (exists ((v_entry_point_~array~0.base_33 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_19| (store |c_old(#valid)| v_entry_point_~array~0.base_33 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~array~0.base_33))))))))) is different from false [2021-10-21 19:27:34,336 INFO L354 Elim1Store]: treesize reduction 16, result has 78.1 percent of original size [2021-10-21 19:27:34,336 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 62 treesize of output 109 [2021-10-21 19:27:35,096 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-21 19:27:35,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 29 [2021-10-21 19:27:35,797 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_entry_point_#t~ret38.base_72| (_ BitVec 32)) (|v_old(#valid)_BEFORE_CALL_19| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((v_entry_point_~array~0.base_33 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_19| (store |c_old(#valid)| v_entry_point_~array~0.base_33 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~array~0.base_33))))))) (= (store |c_#valid| |v_entry_point_#t~ret38.base_72| (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_19|) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_entry_point_#t~ret38.base_72|))))))) is different from false [2021-10-21 19:27:36,017 INFO L354 Elim1Store]: treesize reduction 16, result has 78.1 percent of original size [2021-10-21 19:27:36,017 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 71 treesize of output 118 [2021-10-21 19:27:36,689 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(not (= (store |old(#valid)| |v_entry_point_#t~ret38.base_72| (_ bv0 1)) v_prenex_21))=(not (= (select (store |old(#valid)| |v_entry_point_#t~ret38.base_72| (_ bv0 1)) v_antiDerIndex_entry0_9) (select v_prenex_21 v_antiDerIndex_entry0_9)))} [2021-10-21 19:27:36,689 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:27:36,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-21 19:27:36,690 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-21 19:27:36,690 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-10-21 19:27:36,696 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-21 19:27:36,699 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-21 19:27:36,700 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-21 19:27:36,700 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-21 19:27:36,700 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-21 19:27:36,700 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-21 19:27:36,700 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-21 19:27:36,701 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-21 19:27:36,701 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-21 19:27:36,701 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-21 19:27:36,701 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-21 19:27:36,701 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-21 19:27:36,702 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-21 19:27:36,702 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-21 19:27:36,702 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-21 19:27:36,702 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-21 19:27:36,702 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-21 19:27:36,702 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-21 19:27:36,703 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-21 19:27:36,703 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-21 19:27:36,703 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-21 19:27:36,703 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-21 19:27:36,703 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-21 19:27:36,704 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-21 19:27:36,704 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-21 19:27:36,704 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-21 19:27:36,705 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-21 19:27:36,705 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-21 19:27:36,705 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-21 19:27:36,705 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-21 19:27:36,705 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-21 19:27:36,705 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-21 19:27:36,706 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-21 19:27:36,706 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-21 19:27:36,706 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-21 19:27:36,706 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-21 19:27:36,706 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-21 19:27:36,706 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-21 19:27:36,707 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-21 19:27:36,707 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-21 19:27:36,707 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-21 19:27:36,707 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-21 19:27:36,707 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-21 19:27:36,708 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:27:36,708 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:27:36,708 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:27:36,708 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:27:36,708 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:27:36,709 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:27:36,709 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-21 19:27:36,709 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-21 19:27:36,709 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-21 19:27:36,709 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-21 19:27:36,709 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-21 19:27:36,710 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-21 19:27:36,710 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-21 19:27:36,710 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-21 19:27:36,710 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:27:36,710 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:27:36,711 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:27:36,711 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:27:36,711 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:27:36,711 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:27:36,711 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-21 19:27:36,712 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-21 19:27:36,712 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-21 19:27:36,712 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-21 19:27:36,712 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-21 19:27:36,712 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-21 19:27:36,712 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-21 19:27:36,713 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-21 19:27:36,713 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0REQUIRES_VIOLATION [2021-10-21 19:27:36,713 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1REQUIRES_VIOLATION [2021-10-21 19:27:36,713 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr2REQUIRES_VIOLATION [2021-10-21 19:27:36,713 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr3REQUIRES_VIOLATION [2021-10-21 19:27:36,714 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:27:36,714 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:27:36,714 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:27:36,715 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:27:36,715 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:27:36,715 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:27:36,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-21 19:27:36,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-21 19:27:37,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-10-21 19:27:37,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/cvc4 --incremental --print-success --lang smt [2021-10-21 19:27:37,342 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:27:37,345 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-21 19:27:37,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:27:37 BoogieIcfgContainer [2021-10-21 19:27:37,353 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:27:37,354 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:27:37,354 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:27:37,354 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:27:37,355 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:24:35" (3/4) ... [2021-10-21 19:27:37,358 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:27:37,359 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:27:37,360 INFO L168 Benchmark]: Toolchain (without parser) took 183808.57 ms. Allocated memory was 60.8 MB in the beginning and 113.2 MB in the end (delta: 52.4 MB). Free memory was 39.5 MB in the beginning and 66.8 MB in the end (delta: -27.3 MB). Peak memory consumption was 25.0 MB. Max. memory is 16.1 GB. [2021-10-21 19:27:37,360 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 60.8 MB. Free memory is still 41.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:27:37,361 INFO L168 Benchmark]: CACSL2BoogieTranslator took 802.40 ms. Allocated memory is still 60.8 MB. Free memory was 39.3 MB in the beginning and 26.6 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:27:37,361 INFO L168 Benchmark]: Boogie Preprocessor took 118.48 ms. Allocated memory is still 60.8 MB. Free memory was 26.6 MB in the beginning and 21.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:27:37,361 INFO L168 Benchmark]: RCFGBuilder took 1457.53 ms. Allocated memory was 60.8 MB in the beginning and 86.0 MB in the end (delta: 25.2 MB). Free memory was 21.9 MB in the beginning and 45.5 MB in the end (delta: -23.6 MB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:27:37,362 INFO L168 Benchmark]: TraceAbstraction took 181420.31 ms. Allocated memory was 86.0 MB in the beginning and 113.2 MB in the end (delta: 27.3 MB). Free memory was 45.0 MB in the beginning and 66.8 MB in the end (delta: -21.8 MB). Peak memory consumption was 49.9 MB. Max. memory is 16.1 GB. [2021-10-21 19:27:37,362 INFO L168 Benchmark]: Witness Printer took 4.84 ms. Allocated memory is still 113.2 MB. Free memory is still 66.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:27:37,364 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 60.8 MB. Free memory is still 41.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 802.40 ms. Allocated memory is still 60.8 MB. Free memory was 39.3 MB in the beginning and 26.6 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 118.48 ms. Allocated memory is still 60.8 MB. Free memory was 26.6 MB in the beginning and 21.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1457.53 ms. Allocated memory was 60.8 MB in the beginning and 86.0 MB in the end (delta: 25.2 MB). Free memory was 21.9 MB in the beginning and 45.5 MB in the end (delta: -23.6 MB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 181420.31 ms. Allocated memory was 86.0 MB in the beginning and 113.2 MB in the end (delta: 27.3 MB). Free memory was 45.0 MB in the beginning and 66.8 MB in the end (delta: -21.8 MB). Peak memory consumption was 49.9 MB. Max. memory is 16.1 GB. * Witness Printer took 4.84 ms. Allocated memory is still 113.2 MB. Free memory is still 66.8 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: 780]: 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 780. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L781] CALL entry_point() [L761] int len = 10; [L762] CALL, EXPR ldv_malloc(sizeof(struct A18*)*len) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L762] RET, EXPR ldv_malloc(sizeof(struct A18*)*len) [L762] struct A18 **array = (struct A18 **)ldv_malloc(sizeof(struct A18*)*len); [L763] struct A18 *p; [L764] int i=0; [L765] int j; [L766] COND FALSE !(!array) [L767] COND TRUE i=0) [L777] free(array) [L777] free(array) [L777] free(array) [L781] 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: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 357 locations, 81 error locations. Started 1 CEGAR loops. OverallTime: 181354.7ms, OverallIterations: 10, TraceHistogramMax: 2, EmptinessCheckTime: 21.6ms, AutomataDifference: 110669.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 449 SDtfs, 896 SDslu, 1250 SDs, 0 SdLazy, 1053 SolverSat, 152 SolverUnsat, 41 SolverUnknown, 0 SolverNotchecked, 87152.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 413 GetRequests, 331 SyntacticMatches, 8 SemanticMatches, 74 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 32731.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=117occurred in iteration=0, InterpolantAutomatonStates: 70, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 127.4ms AutomataMinimizationTime, 9 MinimizatonAttempts, 358 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 96.0ms SsaConstructionTime, 239.7ms SatisfiabilityAnalysisTime, 18805.2ms InterpolantComputationTime, 197 NumberOfCodeBlocks, 197 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 376 ConstructedInterpolants, 23 QuantifiedInterpolants, 1792 SizeOfPredicates, 12 NumberOfNonLiveVariables, 816 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 18 InterpolantComputations, 11 PerfectInterpolantSequences, 32/48 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-21 19:27:37,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6be5a4d-9ea9-4101-8841-a808893f7947/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...