./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 b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 27e059eb1633b1ab9c045484375455e2667fa3360a55d0bc53eccfa53fe7600f ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:53:24,910 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:53:24,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:53:24,942 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:53:24,943 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:53:24,944 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:53:24,946 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:53:24,948 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:53:24,951 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:53:24,952 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:53:24,953 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:53:24,955 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:53:24,956 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:53:24,957 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:53:24,959 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:53:24,960 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:53:24,962 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:53:24,963 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:53:24,965 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:53:24,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:53:24,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:53:24,977 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:53:24,978 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:53:24,980 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:53:24,984 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:53:24,995 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:53:24,995 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:53:24,996 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:53:24,997 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:53:24,998 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:53:24,998 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:53:24,999 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:53:25,000 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:53:25,001 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:53:25,002 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:53:25,002 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:53:25,002 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:53:25,003 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:53:25,003 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:53:25,004 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:53:25,005 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:53:25,005 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 23:53:25,030 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:53:25,030 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:53:25,031 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:53:25,031 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:53:25,032 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:53:25,032 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:53:25,032 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:53:25,033 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:53:25,033 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:53:25,033 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:53:25,033 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:53:25,034 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:53:25,034 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:53:25,034 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:53:25,034 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:53:25,034 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:53:25,035 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:53:25,035 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:53:25,035 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:53:25,035 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:53:25,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:53:25,036 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:53:25,036 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:53:25,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:53:25,036 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:53:25,037 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:53:25,037 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:53:25,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:53:25,037 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:53:25,037 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_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27e059eb1633b1ab9c045484375455e2667fa3360a55d0bc53eccfa53fe7600f [2021-10-28 23:53:25,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:53:25,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:53:25,291 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:53:25,292 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:53:25,293 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:53:25,294 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i [2021-10-28 23:53:25,367 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/data/a8f92569b/ede239478379489f90688676f8d593ce/FLAG860fd69af [2021-10-28 23:53:25,939 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:53:25,940 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i [2021-10-28 23:53:25,953 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/data/a8f92569b/ede239478379489f90688676f8d593ce/FLAG860fd69af [2021-10-28 23:53:26,191 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/data/a8f92569b/ede239478379489f90688676f8d593ce [2021-10-28 23:53:26,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:53:26,195 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:53:26,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:53:26,197 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:53:26,205 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:53:26,206 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:53:26" (1/1) ... [2021-10-28 23:53:26,207 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b67b9b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:53:26, skipping insertion in model container [2021-10-28 23:53:26,207 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:53:26" (1/1) ... [2021-10-28 23:53:26,215 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:53:26,265 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:53:26,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:53:26,790 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-28 23:53:26,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1459e1eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:53:26, skipping insertion in model container [2021-10-28 23:53:26,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:53:26,792 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-28 23:53:26,795 INFO L168 Benchmark]: Toolchain (without parser) took 598.31 ms. Allocated memory is still 92.3 MB. Free memory was 62.0 MB in the beginning and 63.8 MB in the end (delta: -1.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:53:26,796 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 92.3 MB. Free memory is still 49.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:53:26,798 INFO L168 Benchmark]: CACSL2BoogieTranslator took 595.78 ms. Allocated memory is still 92.3 MB. Free memory was 61.7 MB in the beginning and 63.8 MB in the end (delta: -2.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:53:26,800 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 92.3 MB. Free memory is still 49.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 595.78 ms. Allocated memory is still 92.3 MB. Free memory was 61.7 MB in the beginning and 63.8 MB in the end (delta: -2.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:53:28,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:53:28,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:53:29,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:53:29,039 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:53:29,043 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:53:29,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:53:29,051 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:53:29,054 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:53:29,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:53:29,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:53:29,063 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:53:29,063 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:53:29,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:53:29,068 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:53:29,072 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:53:29,073 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:53:29,074 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:53:29,077 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:53:29,084 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:53:29,086 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:53:29,087 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:53:29,089 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:53:29,092 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:53:29,100 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:53:29,101 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:53:29,101 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:53:29,103 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:53:29,104 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:53:29,105 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:53:29,106 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:53:29,107 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:53:29,109 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:53:29,109 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:53:29,111 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:53:29,111 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:53:29,112 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:53:29,112 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:53:29,113 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:53:29,115 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:53:29,115 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:53:29,116 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 23:53:29,158 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:53:29,158 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:53:29,159 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:53:29,159 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:53:29,161 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:53:29,161 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:53:29,161 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:53:29,161 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:53:29,162 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:53:29,162 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:53:29,163 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:53:29,163 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:53:29,163 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:53:29,164 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:53:29,164 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:53:29,164 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:53:29,164 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:53:29,165 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:53:29,165 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 23:53:29,165 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 23:53:29,165 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:53:29,166 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:53:29,166 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:53:29,166 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:53:29,166 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:53:29,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:53:29,167 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:53:29,167 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:53:29,167 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 23:53:29,168 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 23:53:29,168 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:53:29,168 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 23:53:29,168 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_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27e059eb1633b1ab9c045484375455e2667fa3360a55d0bc53eccfa53fe7600f [2021-10-28 23:53:29,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:53:29,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:53:29,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:53:29,566 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:53:29,566 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:53:29,569 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i [2021-10-28 23:53:29,645 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/data/ff0016bb6/826a7dc3953a45b197e82b7bc5b2097b/FLAG155515fe1 [2021-10-28 23:53:30,239 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:53:30,241 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/sv-benchmarks/c/ldv-memsafety/memleaks_test18_2.i [2021-10-28 23:53:30,259 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/data/ff0016bb6/826a7dc3953a45b197e82b7bc5b2097b/FLAG155515fe1 [2021-10-28 23:53:30,547 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/data/ff0016bb6/826a7dc3953a45b197e82b7bc5b2097b [2021-10-28 23:53:30,549 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:53:30,551 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:53:30,555 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:53:30,555 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:53:30,558 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:53:30,559 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:53:30" (1/1) ... [2021-10-28 23:53:30,560 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@163c1cdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:53:30, skipping insertion in model container [2021-10-28 23:53:30,560 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:53:30" (1/1) ... [2021-10-28 23:53:30,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:53:30,635 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:53:31,084 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:53:31,109 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-28 23:53:31,125 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:53:31,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:53:31,239 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:53:31,321 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:53:31,378 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:53:31,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:53:31 WrapperNode [2021-10-28 23:53:31,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:53:31,380 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:53:31,380 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:53:31,381 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:53:31,392 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:53:31" (1/1) ... [2021-10-28 23:53:31,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:53:31" (1/1) ... [2021-10-28 23:53:31,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:53:31" (1/1) ... [2021-10-28 23:53:31,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:53:31" (1/1) ... [2021-10-28 23:53:31,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:53:31" (1/1) ... [2021-10-28 23:53:31,504 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:53:31" (1/1) ... [2021-10-28 23:53:31,525 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:53:31" (1/1) ... [2021-10-28 23:53:31,540 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:53:31,540 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:53:31,540 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:53:31,541 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:53:31,541 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:53:31" (1/1) ... [2021-10-28 23:53:31,551 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:53:31,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:53:31,588 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:53:31,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:53:31,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 23:53:31,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:53:31,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 23:53:31,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:53:31,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 23:53:31,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 23:53:31,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 23:53:31,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 23:53:31,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 23:53:31,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-28 23:53:31,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-28 23:53:31,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-28 23:53:31,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-28 23:53:31,645 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-28 23:53:31,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-28 23:53:31,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-28 23:53:31,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-28 23:53:31,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-28 23:53:31,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-28 23:53:31,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-28 23:53:31,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-28 23:53:31,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-28 23:53:31,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-28 23:53:31,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-28 23:53:31,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-28 23:53:31,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-28 23:53:31,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-28 23:53:31,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-28 23:53:31,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-28 23:53:31,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-28 23:53:31,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-28 23:53:31,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-28 23:53:31,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-28 23:53:31,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-28 23:53:31,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-28 23:53:31,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-28 23:53:31,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-28 23:53:31,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-28 23:53:31,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-28 23:53:31,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-28 23:53:31,650 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-28 23:53:31,651 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-28 23:53:31,651 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-28 23:53:31,651 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 23:53:31,651 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-28 23:53:31,651 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-28 23:53:31,652 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-28 23:53:31,652 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 23:53:31,652 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 23:53:31,652 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 23:53:31,652 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 23:53:31,652 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 23:53:31,653 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 23:53:31,653 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 23:53:31,653 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 23:53:31,653 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 23:53:31,653 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 23:53:31,653 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 23:53:31,653 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 23:53:31,654 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 23:53:31,654 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 23:53:31,654 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 23:53:31,654 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 23:53:31,654 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 23:53:31,654 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 23:53:31,655 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 23:53:31,655 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 23:53:31,655 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 23:53:31,655 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 23:53:31,655 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 23:53:31,655 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 23:53:31,656 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 23:53:31,656 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 23:53:31,656 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 23:53:31,656 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 23:53:31,656 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 23:53:31,656 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 23:53:31,656 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 23:53:31,656 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 23:53:31,656 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 23:53:31,657 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 23:53:31,657 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 23:53:31,657 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 23:53:31,657 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 23:53:31,657 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 23:53:31,657 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 23:53:31,657 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 23:53:31,657 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 23:53:31,658 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 23:53:31,658 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 23:53:31,658 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 23:53:31,658 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 23:53:31,658 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 23:53:31,658 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 23:53:31,658 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 23:53:31,658 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 23:53:31,658 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 23:53:31,658 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 23:53:31,658 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 23:53:31,658 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 23:53:31,659 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 23:53:31,659 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 23:53:31,659 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 23:53:31,659 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 23:53:31,659 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 23:53:31,659 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 23:53:31,659 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 23:53:31,659 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 23:53:31,659 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 23:53:31,660 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 23:53:31,660 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 23:53:31,660 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 23:53:31,660 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 23:53:31,660 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 23:53:31,660 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 23:53:31,660 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 23:53:31,660 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 23:53:31,661 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 23:53:31,661 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 23:53:31,661 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 23:53:31,661 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 23:53:31,661 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 23:53:31,661 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 23:53:31,662 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 23:53:31,662 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 23:53:31,662 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 23:53:31,662 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 23:53:31,662 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 23:53:31,662 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 23:53:31,663 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 23:53:31,663 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 23:53:31,663 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 23:53:31,664 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 23:53:31,664 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 23:53:31,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 23:53:31,665 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 23:53:31,665 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 23:53:31,666 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 23:53:31,666 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 23:53:31,666 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 23:53:31,666 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 23:53:31,667 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 23:53:31,667 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 23:53:31,667 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 23:53:31,667 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 23:53:31,667 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 23:53:31,667 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 23:53:31,668 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 23:53:31,668 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 23:53:31,668 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 23:53:31,668 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 23:53:31,668 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 23:53:31,668 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 23:53:31,669 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 23:53:31,669 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-28 23:53:31,669 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 23:53:31,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-28 23:53:31,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-28 23:53:31,670 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-28 23:53:31,670 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-28 23:53:31,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-28 23:53:31,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:53:31,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-28 23:53:31,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-28 23:53:31,671 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-28 23:53:31,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 23:53:31,671 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-28 23:53:31,672 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-28 23:53:31,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-28 23:53:31,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 23:53:31,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-28 23:53:31,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-28 23:53:31,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-28 23:53:31,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-28 23:53:31,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-28 23:53:31,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-28 23:53:31,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:53:31,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-28 23:53:31,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-28 23:53:31,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-28 23:53:31,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-28 23:53:31,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-28 23:53:31,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 23:53:31,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 23:53:31,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-28 23:53:31,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-28 23:53:31,676 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 23:53:31,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-28 23:53:31,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-28 23:53:31,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-28 23:53:31,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-28 23:53:31,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-28 23:53:31,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-28 23:53:31,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-28 23:53:31,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-28 23:53:31,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-28 23:53:31,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-28 23:53:31,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-28 23:53:31,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-28 23:53:31,679 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-28 23:53:31,681 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-28 23:53:31,681 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-28 23:53:31,681 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 23:53:31,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 23:53:31,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:53:31,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 23:53:31,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:53:31,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:53:31,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-28 23:53:31,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-28 23:53:31,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-28 23:53:31,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-28 23:53:32,256 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:53:32,554 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:53:32,876 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:53:32,877 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-10-28 23:53:32,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:53:32 BoogieIcfgContainer [2021-10-28 23:53:32,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:53:32,881 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:53:32,881 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:53:32,884 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:53:32,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:53:30" (1/3) ... [2021-10-28 23:53:32,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6780dc11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:53:32, skipping insertion in model container [2021-10-28 23:53:32,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:53:31" (2/3) ... [2021-10-28 23:53:32,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6780dc11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:53:32, skipping insertion in model container [2021-10-28 23:53:32,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:53:32" (3/3) ... [2021-10-28 23:53:32,887 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test18_2.i [2021-10-28 23:53:32,892 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:53:32,892 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 81 error locations. [2021-10-28 23:53:32,934 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:53:32,939 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 23:53:32,940 INFO L340 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2021-10-28 23:53:32,955 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) [2021-10-28 23:53:32,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 23:53:32,962 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:53:32,963 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:53:32,964 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)] === [2021-10-28 23:53:32,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:53:32,969 INFO L85 PathProgramCache]: Analyzing trace with hash -114808450, now seen corresponding path program 1 times [2021-10-28 23:53:32,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:53:32,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1095831389] [2021-10-28 23:53:32,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:53:32,981 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:53:32,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:53:32,987 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:53:32,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 23:53:33,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:53:33,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:53:33,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:53:33,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:53:33,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:53:33,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:53:33,409 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:53:33,409 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1095831389] [2021-10-28 23:53:33,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1095831389] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:53:33,410 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:53:33,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 23:53:33,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653335148] [2021-10-28 23:53:33,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:53:33,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:53:33,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:53:33,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:53:33,433 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) [2021-10-28 23:53:33,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:53:33,571 INFO L93 Difference]: Finished difference Result 78 states and 90 transitions. [2021-10-28 23:53:33,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:53:33,572 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 [2021-10-28 23:53:33,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:53:33,581 INFO L225 Difference]: With dead ends: 78 [2021-10-28 23:53:33,581 INFO L226 Difference]: Without dead ends: 75 [2021-10-28 23:53:33,583 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:53:33,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-10-28 23:53:33,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 48. [2021-10-28 23:53:33,620 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) [2021-10-28 23:53:33,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2021-10-28 23:53:33,623 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 17 [2021-10-28 23:53:33,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:53:33,623 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2021-10-28 23:53:33,624 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) [2021-10-28 23:53:33,624 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2021-10-28 23:53:33,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 23:53:33,625 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:53:33,625 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:53:33,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:53:33,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:53:33,838 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)] === [2021-10-28 23:53:33,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:53:33,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1628001885, now seen corresponding path program 1 times [2021-10-28 23:53:33,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:53:33,840 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [426704231] [2021-10-28 23:53:33,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:53:33,840 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:53:33,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:53:33,841 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:53:33,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 23:53:33,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:53:34,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:53:34,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:53:34,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:53:34,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:53:34,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:53:34,194 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:53:34,195 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [426704231] [2021-10-28 23:53:34,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [426704231] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:53:34,195 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:53:34,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 23:53:34,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103428927] [2021-10-28 23:53:34,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:53:34,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:53:34,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:53:34,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:53:34,198 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) [2021-10-28 23:53:34,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:53:34,285 INFO L93 Difference]: Finished difference Result 76 states and 86 transitions. [2021-10-28 23:53:34,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:53:34,285 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 [2021-10-28 23:53:34,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:53:34,287 INFO L225 Difference]: With dead ends: 76 [2021-10-28 23:53:34,287 INFO L226 Difference]: Without dead ends: 73 [2021-10-28 23:53:34,288 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:53:34,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-10-28 23:53:34,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 54. [2021-10-28 23:53:34,294 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) [2021-10-28 23:53:34,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2021-10-28 23:53:34,297 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 17 [2021-10-28 23:53:34,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:53:34,297 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2021-10-28 23:53:34,298 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) [2021-10-28 23:53:34,298 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2021-10-28 23:53:34,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 23:53:34,299 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:53:34,299 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:53:34,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:53:34,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:53:34,500 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)] === [2021-10-28 23:53:34,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:53:34,500 INFO L85 PathProgramCache]: Analyzing trace with hash 735393073, now seen corresponding path program 1 times [2021-10-28 23:53:34,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:53:34,501 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1211799074] [2021-10-28 23:53:34,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:53:34,501 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:53:34,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:53:34,502 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:53:34,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 23:53:34,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:53:34,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 23:53:34,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:53:34,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:53:34,761 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:53:34,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:53:34,832 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:53:34,833 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1211799074] [2021-10-28 23:53:34,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1211799074] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:53:34,833 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:53:34,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-28 23:53:34,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603926566] [2021-10-28 23:53:34,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:53:34,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:53:34,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:53:34,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:53:34,837 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) [2021-10-28 23:53:34,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:53:34,923 INFO L93 Difference]: Finished difference Result 92 states and 111 transitions. [2021-10-28 23:53:34,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:53:34,925 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 [2021-10-28 23:53:34,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:53:34,927 INFO L225 Difference]: With dead ends: 92 [2021-10-28 23:53:34,927 INFO L226 Difference]: Without dead ends: 92 [2021-10-28 23:53:34,927 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:53:34,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-10-28 23:53:34,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 63. [2021-10-28 23:53:34,943 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) [2021-10-28 23:53:34,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 80 transitions. [2021-10-28 23:53:34,951 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 80 transitions. Word has length 18 [2021-10-28 23:53:34,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:53:34,952 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 80 transitions. [2021-10-28 23:53:34,952 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) [2021-10-28 23:53:34,952 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 80 transitions. [2021-10-28 23:53:34,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 23:53:34,953 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:53:34,953 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:53:34,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:53:35,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:53:35,154 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)] === [2021-10-28 23:53:35,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:53:35,154 INFO L85 PathProgramCache]: Analyzing trace with hash -529470855, now seen corresponding path program 1 times [2021-10-28 23:53:35,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:53:35,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1861754156] [2021-10-28 23:53:35,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:53:35,155 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:53:35,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:53:35,156 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:53:35,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 23:53:35,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:53:35,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 23:53:35,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:53:35,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 23:53:35,530 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-28 23:53:35,531 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 [2021-10-28 23:53:35,571 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:53:35,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:53:35,855 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:53:35,856 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:53:35,856 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1861754156] [2021-10-28 23:53:35,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1861754156] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 23:53:35,856 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:53:35,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2021-10-28 23:53:35,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932740313] [2021-10-28 23:53:35,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:53:35,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:53:35,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:53:35,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:53:35,858 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) [2021-10-28 23:53:36,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:53:36,576 INFO L93 Difference]: Finished difference Result 163 states and 188 transitions. [2021-10-28 23:53:36,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:53:36,576 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 [2021-10-28 23:53:36,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:53:36,579 INFO L225 Difference]: With dead ends: 163 [2021-10-28 23:53:36,579 INFO L226 Difference]: Without dead ends: 163 [2021-10-28 23:53:36,580 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 34 SyntacticMatches, 6 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:53:36,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-10-28 23:53:36,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 79. [2021-10-28 23:53:36,590 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) [2021-10-28 23:53:36,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 103 transitions. [2021-10-28 23:53:36,592 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 103 transitions. Word has length 23 [2021-10-28 23:53:36,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:53:36,592 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 103 transitions. [2021-10-28 23:53:36,592 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) [2021-10-28 23:53:36,592 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 103 transitions. [2021-10-28 23:53:36,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 23:53:36,593 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:53:36,593 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:53:36,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:53:36,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:53:36,795 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)] === [2021-10-28 23:53:36,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:53:36,796 INFO L85 PathProgramCache]: Analyzing trace with hash -529470854, now seen corresponding path program 1 times [2021-10-28 23:53:36,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:53:36,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2106909625] [2021-10-28 23:53:36,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:53:36,797 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:53:36,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:53:36,798 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:53:36,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 23:53:36,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:53:36,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-28 23:53:36,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:53:37,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 23:53:37,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 23:53:39,367 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-28 23:53:39,367 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 [2021-10-28 23:53:39,379 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-28 23:53:39,379 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 [2021-10-28 23:53:39,472 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:53:39,472 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:53:59,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 27 [2021-10-28 23:54:00,019 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 [2021-10-28 23:54:00,195 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:54:00,196 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:54:00,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2106909625] [2021-10-28 23:54:00,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2106909625] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 23:54:00,196 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:54:00,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2021-10-28 23:54:00,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458148360] [2021-10-28 23:54:00,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-28 23:54:00,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:54:00,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 23:54:00,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=257, Unknown=6, NotChecked=0, Total=306 [2021-10-28 23:54:00,198 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) [2021-10-28 23:56:01,521 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 [2021-10-28 23:56:52,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:56:52,188 INFO L93 Difference]: Finished difference Result 299 states and 359 transitions. [2021-10-28 23:56:52,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-28 23:56:52,189 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 [2021-10-28 23:56:52,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:56:52,193 INFO L225 Difference]: With dead ends: 299 [2021-10-28 23:56:52,193 INFO L226 Difference]: Without dead ends: 299 [2021-10-28 23:56:52,194 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 48.4s TimeCoverageRelationStatistics Valid=167, Invalid=815, Unknown=14, NotChecked=60, Total=1056 [2021-10-28 23:56:52,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2021-10-28 23:56:52,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 102. [2021-10-28 23:56:52,214 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) [2021-10-28 23:56:52,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 139 transitions. [2021-10-28 23:56:52,216 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 139 transitions. Word has length 23 [2021-10-28 23:56:52,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:56:52,217 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 139 transitions. [2021-10-28 23:56:52,217 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) [2021-10-28 23:56:52,218 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 139 transitions. [2021-10-28 23:56:52,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 23:56:52,219 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:56:52,219 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:56:52,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:56:52,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:56:52,423 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)] === [2021-10-28 23:56:52,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:56:52,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1035029480, now seen corresponding path program 1 times [2021-10-28 23:56:52,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:56:52,424 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005954788] [2021-10-28 23:56:52,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:56:52,425 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:56:52,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:56:52,425 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:56:52,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 23:56:52,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:52,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 23:56:52,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:56:52,790 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:56:52,791 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:56:52,941 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:56:52,941 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:56:52,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1005954788] [2021-10-28 23:56:52,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1005954788] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-28 23:56:52,942 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:56:52,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-10-28 23:56:52,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824162160] [2021-10-28 23:56:52,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:56:52,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:56:52,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:56:52,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:56:52,944 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) [2021-10-28 23:56:53,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:56:53,047 INFO L93 Difference]: Finished difference Result 84 states and 109 transitions. [2021-10-28 23:56:53,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:56:53,048 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 [2021-10-28 23:56:53,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:56:53,050 INFO L225 Difference]: With dead ends: 84 [2021-10-28 23:56:53,050 INFO L226 Difference]: Without dead ends: 80 [2021-10-28 23:56:53,050 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:56:53,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-10-28 23:56:53,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-10-28 23:56:53,063 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) [2021-10-28 23:56:53,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 105 transitions. [2021-10-28 23:56:53,064 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 105 transitions. Word has length 23 [2021-10-28 23:56:53,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:56:53,064 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 105 transitions. [2021-10-28 23:56:53,065 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) [2021-10-28 23:56:53,065 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 105 transitions. [2021-10-28 23:56:53,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 23:56:53,066 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:56:53,066 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:56:53,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:56:53,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:56:53,278 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)] === [2021-10-28 23:56:53,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:56:53,279 INFO L85 PathProgramCache]: Analyzing trace with hash -2015391035, now seen corresponding path program 1 times [2021-10-28 23:56:53,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:56:53,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1472079870] [2021-10-28 23:56:53,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:56:53,280 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:56:53,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:56:53,281 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:56:53,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-28 23:56:53,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:53,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:56:53,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:56:53,575 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:56:53,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:56:53,673 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:56:53,673 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:56:53,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1472079870] [2021-10-28 23:56:53,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1472079870] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:56:53,674 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:56:53,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 23:56:53,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288914970] [2021-10-28 23:56:53,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:56:53,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:56:53,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:56:53,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:56:53,675 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) [2021-10-28 23:56:53,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:56:53,751 INFO L93 Difference]: Finished difference Result 95 states and 122 transitions. [2021-10-28 23:56:53,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:56:53,752 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 [2021-10-28 23:56:53,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:56:53,754 INFO L225 Difference]: With dead ends: 95 [2021-10-28 23:56:53,754 INFO L226 Difference]: Without dead ends: 95 [2021-10-28 23:56:53,754 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:56:53,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-10-28 23:56:53,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 84. [2021-10-28 23:56:53,766 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) [2021-10-28 23:56:53,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 108 transitions. [2021-10-28 23:56:53,768 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 108 transitions. Word has length 25 [2021-10-28 23:56:53,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:56:53,768 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 108 transitions. [2021-10-28 23:56:53,769 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) [2021-10-28 23:56:53,769 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 108 transitions. [2021-10-28 23:56:53,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 23:56:53,775 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:56:53,775 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:56:53,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:56:53,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:56:53,976 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)] === [2021-10-28 23:56:53,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:56:53,977 INFO L85 PathProgramCache]: Analyzing trace with hash -272580700, now seen corresponding path program 1 times [2021-10-28 23:56:53,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:56:53,977 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [976600767] [2021-10-28 23:56:53,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:56:53,977 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:56:53,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:56:53,978 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:56:53,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-28 23:56:54,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:54,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 23:56:54,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:56:54,337 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 23:56:54,337 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:56:54,481 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 23:56:54,481 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:56:54,481 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [976600767] [2021-10-28 23:56:54,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [976600767] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:56:54,482 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:56:54,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-28 23:56:54,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666460215] [2021-10-28 23:56:54,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:56:54,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:56:54,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:56:54,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:56:54,484 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) [2021-10-28 23:56:54,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:56:54,618 INFO L93 Difference]: Finished difference Result 83 states and 99 transitions. [2021-10-28 23:56:54,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:56:54,622 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 [2021-10-28 23:56:54,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:56:54,623 INFO L225 Difference]: With dead ends: 83 [2021-10-28 23:56:54,623 INFO L226 Difference]: Without dead ends: 83 [2021-10-28 23:56:54,624 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:56:54,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-10-28 23:56:54,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 76. [2021-10-28 23:56:54,630 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) [2021-10-28 23:56:54,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 92 transitions. [2021-10-28 23:56:54,631 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 92 transitions. Word has length 25 [2021-10-28 23:56:54,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:56:54,631 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 92 transitions. [2021-10-28 23:56:54,632 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) [2021-10-28 23:56:54,632 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 92 transitions. [2021-10-28 23:56:54,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-28 23:56:54,633 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:56:54,633 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:56:54,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:56:54,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:56:54,847 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)] === [2021-10-28 23:56:54,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:56:54,847 INFO L85 PathProgramCache]: Analyzing trace with hash 139931782, now seen corresponding path program 1 times [2021-10-28 23:56:54,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:56:54,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [692599506] [2021-10-28 23:56:54,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:56:54,848 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:56:54,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:56:54,849 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:56:54,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-28 23:56:55,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:55,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:56:55,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:56:55,578 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:56:55,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:56:55,890 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:56:55,890 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:56:55,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [692599506] [2021-10-28 23:56:55,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [692599506] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 23:56:55,891 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:56:55,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 9 [2021-10-28 23:56:55,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232801769] [2021-10-28 23:56:55,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:56:55,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:56:55,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:56:55,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:56:55,893 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) [2021-10-28 23:56:56,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:56:56,369 INFO L93 Difference]: Finished difference Result 75 states and 90 transitions. [2021-10-28 23:56:56,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:56:56,371 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 [2021-10-28 23:56:56,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:56:56,372 INFO L225 Difference]: With dead ends: 75 [2021-10-28 23:56:56,372 INFO L226 Difference]: Without dead ends: 75 [2021-10-28 23:56:56,373 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:56:56,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-10-28 23:56:56,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2021-10-28 23:56:56,378 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) [2021-10-28 23:56:56,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 90 transitions. [2021-10-28 23:56:56,379 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 90 transitions. Word has length 26 [2021-10-28 23:56:56,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:56:56,379 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 90 transitions. [2021-10-28 23:56:56,379 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) [2021-10-28 23:56:56,380 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 90 transitions. [2021-10-28 23:56:56,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-28 23:56:56,381 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:56:56,381 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:56:56,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:56:56,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:56:56,595 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)] === [2021-10-28 23:56:56,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:56:56,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1318116199, now seen corresponding path program 1 times [2021-10-28 23:56:56,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:56:56,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1073638033] [2021-10-28 23:56:56,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:56:56,596 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:56:56,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:56:56,597 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:56:56,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-28 23:56:56,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:56:56,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-28 23:56:56,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:56:57,267 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:56:57,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:57:07,724 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:57:07,724 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1073638033] [2021-10-28 23:57:07,725 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))} [2021-10-28 23:57:07,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1251419266] [2021-10-28 23:57:07,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:57:07,725 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-28 23:57:07,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/cvc4 [2021-10-28 23:57:07,736 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-28 23:57:07,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-10-28 23:57:08,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:08,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-28 23:57:08,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:57:08,207 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-28 23:57:08,207 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 [2021-10-28 23:57:14,909 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:57:14,909 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:57:27,992 INFO L354 Elim1Store]: treesize reduction 16, result has 78.1 percent of original size [2021-10-28 23:57:27,992 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 [2021-10-28 23:57:29,196 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-28 23:57:29,196 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 [2021-10-28 23:57:29,620 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_entry_point_#t~ret38.base_63| (_ BitVec 32)) (|v_old(#valid)_BEFORE_CALL_13| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_13| (store |c_#valid| |v_entry_point_#t~ret38.base_63| (_ bv0 1))) (exists ((v_entry_point_~array~0.base_33 (_ BitVec 32))) (and (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~array~0.base_33)))))))) (not (= |v_old(#valid)_BEFORE_CALL_13| (store |c_old(#valid)| v_entry_point_~array~0.base_33 (_ bv0 1)))))) (not (= (_ bv0 1) (bvneg (bvneg (select |c_#valid| |v_entry_point_#t~ret38.base_63|))))))) is different from false [2021-10-28 23:57:29,977 INFO L354 Elim1Store]: treesize reduction 15, result has 79.5 percent of original size [2021-10-28 23:57:29,977 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 [2021-10-28 23:57:31,577 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)))} [2021-10-28 23:57:31,578 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895485402] [2021-10-28 23:57:31,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:57:31,578 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:57:31,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:57:31,580 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:57:31,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-28 23:57:31,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:57:31,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 23:57:31,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:57:32,239 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:57:32,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:57:42,696 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| (store |c_#valid| c_entry_point_~array~0.base (_ bv0 1))) (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 [2021-10-28 23:57:43,254 INFO L354 Elim1Store]: treesize reduction 16, result has 78.1 percent of original size [2021-10-28 23:57:43,254 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 [2021-10-28 23:57:44,183 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-28 23:57:44,184 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 [2021-10-28 23:57:44,325 WARN L838 $PredicateComparison]: unable to prove that (forall ((|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| |c_entry_point_#t~ret38.base| (_ bv0 1)) |v_old(#valid)_BEFORE_CALL_19|))) is different from false [2021-10-28 23:57:44,793 INFO L354 Elim1Store]: treesize reduction 16, result has 78.1 percent of original size [2021-10-28 23:57:44,794 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 71 treesize of output 118 [2021-10-28 23:57:45,426 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)))} [2021-10-28 23:57:45,426 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:57:45,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-28 23:57:45,426 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-28 23:57:45,427 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-10-28 23:57:45,432 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 23:57:45,434 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-28 23:57:45,434 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-28 23:57:45,434 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-28 23:57:45,434 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-28 23:57:45,435 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-28 23:57:45,435 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-28 23:57:45,435 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-28 23:57:45,435 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-28 23:57:45,435 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-28 23:57:45,435 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-28 23:57:45,435 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-28 23:57:45,435 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-28 23:57:45,435 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 23:57:45,435 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 23:57:45,436 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-28 23:57:45,436 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-28 23:57:45,436 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-28 23:57:45,436 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-28 23:57:45,436 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-28 23:57:45,436 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-28 23:57:45,436 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-28 23:57:45,436 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-28 23:57:45,436 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 23:57:45,437 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 23:57:45,437 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 23:57:45,437 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 23:57:45,437 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-28 23:57:45,437 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-28 23:57:45,437 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-28 23:57:45,438 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-28 23:57:45,438 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 23:57:45,438 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 23:57:45,438 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-28 23:57:45,438 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-28 23:57:45,438 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-28 23:57:45,438 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-28 23:57:45,438 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-28 23:57:45,438 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-28 23:57:45,439 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-28 23:57:45,439 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-28 23:57:45,439 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-28 23:57:45,439 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-28 23:57:45,439 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:57:45,439 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:57:45,440 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:57:45,440 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:57:45,440 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:57:45,440 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:57:45,441 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-28 23:57:45,441 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-28 23:57:45,441 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-28 23:57:45,441 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-28 23:57:45,441 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-28 23:57:45,441 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-28 23:57:45,441 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-28 23:57:45,441 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-28 23:57:45,441 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:57:45,442 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:57:45,442 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:57:45,442 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:57:45,442 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:57:45,442 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:57:45,442 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-28 23:57:45,442 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-28 23:57:45,442 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 23:57:45,442 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 23:57:45,443 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 23:57:45,443 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 23:57:45,443 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-28 23:57:45,443 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-28 23:57:45,443 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0REQUIRES_VIOLATION [2021-10-28 23:57:45,443 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1REQUIRES_VIOLATION [2021-10-28 23:57:45,443 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr2REQUIRES_VIOLATION [2021-10-28 23:57:45,443 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr3REQUIRES_VIOLATION [2021-10-28 23:57:45,443 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:57:45,444 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:57:45,444 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:57:45,444 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:57:45,444 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:57:45,444 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:57:45,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2021-10-28 23:57:45,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-28 23:57:45,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:57:46,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:57:46,062 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:57:46,065 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:57:46,069 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-28 23:57:46,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:57:46 BoogieIcfgContainer [2021-10-28 23:57:46,082 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:57:46,083 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:57:46,083 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:57:46,083 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:57:46,084 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:53:32" (3/4) ... [2021-10-28 23:57:46,091 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:57:46,091 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:57:46,092 INFO L168 Benchmark]: Toolchain (without parser) took 255540.28 ms. Allocated memory was 52.4 MB in the beginning and 92.3 MB in the end (delta: 39.8 MB). Free memory was 27.7 MB in the beginning and 51.6 MB in the end (delta: -24.0 MB). Peak memory consumption was 17.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:57:46,092 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 52.4 MB. Free memory was 33.8 MB in the beginning and 33.7 MB in the end (delta: 37.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:57:46,093 INFO L168 Benchmark]: CACSL2BoogieTranslator took 825.10 ms. Allocated memory was 52.4 MB in the beginning and 75.5 MB in the end (delta: 23.1 MB). Free memory was 27.5 MB in the beginning and 46.7 MB in the end (delta: -19.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:57:46,094 INFO L168 Benchmark]: Boogie Preprocessor took 159.55 ms. Allocated memory is still 75.5 MB. Free memory was 46.7 MB in the beginning and 41.8 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:57:46,094 INFO L168 Benchmark]: RCFGBuilder took 1339.18 ms. Allocated memory is still 75.5 MB. Free memory was 41.8 MB in the beginning and 49.4 MB in the end (delta: -7.6 MB). Peak memory consumption was 13.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:57:46,095 INFO L168 Benchmark]: TraceAbstraction took 253200.68 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 49.1 MB in the beginning and 51.6 MB in the end (delta: -2.6 MB). Peak memory consumption was 46.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:57:46,095 INFO L168 Benchmark]: Witness Printer took 8.25 ms. Allocated memory is still 92.3 MB. Free memory is still 51.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:57:46,098 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 52.4 MB. Free memory was 33.8 MB in the beginning and 33.7 MB in the end (delta: 37.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 825.10 ms. Allocated memory was 52.4 MB in the beginning and 75.5 MB in the end (delta: 23.1 MB). Free memory was 27.5 MB in the beginning and 46.7 MB in the end (delta: -19.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 159.55 ms. Allocated memory is still 75.5 MB. Free memory was 46.7 MB in the beginning and 41.8 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1339.18 ms. Allocated memory is still 75.5 MB. Free memory was 41.8 MB in the beginning and 49.4 MB in the end (delta: -7.6 MB). Peak memory consumption was 13.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 253200.68 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 49.1 MB in the beginning and 51.6 MB in the end (delta: -2.6 MB). Peak memory consumption was 46.5 MB. Max. memory is 16.1 GB. * Witness Printer took 8.25 ms. Allocated memory is still 92.3 MB. Free memory is still 51.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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: 253.1s, OverallIterations: 10, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 173.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 462 SDtfs, 901 SDslu, 1377 SDs, 0 SdLazy, 1176 SolverSat, 145 SolverUnsat, 65 SolverUnknown, 0 SolverNotchecked, 140.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 411 GetRequests, 331 SyntacticMatches, 7 SemanticMatches, 73 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 49.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=117occurred in iteration=0, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 374 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 36.7s InterpolantComputationTime, 227 NumberOfCodeBlocks, 227 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 405 ConstructedInterpolants, 26 QuantifiedInterpolants, 2109 SizeOfPredicates, 13 NumberOfNonLiveVariables, 918 ConjunctsInSsa, 72 ConjunctsInUnsatCore, 19 InterpolantComputations, 11 PerfectInterpolantSequences, 34/52 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-28 23:57:46,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23aa8fef-0344-4117-80c0-ac95622516dc/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...