./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.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_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/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_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/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_7bbb70f1-bba7-4005-9f15-888063e9035d/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 9bd23263f414c48e50ed8daa5b2985179bde28a9902b6873b1962b90b4067acc ................................................................................................................................... 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_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/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_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/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_7bbb70f1-bba7-4005-9f15-888063e9035d/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 9bd23263f414c48e50ed8daa5b2985179bde28a9902b6873b1962b90b4067acc .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:38:40,974 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:38:40,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:38:41,019 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:38:41,020 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:38:41,022 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:38:41,024 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:38:41,027 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:38:41,030 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:38:41,031 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:38:41,033 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:38:41,035 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:38:41,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:38:41,038 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:38:41,040 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:38:41,042 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:38:41,044 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:38:41,045 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:38:41,048 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:38:41,052 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:38:41,054 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:38:41,057 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:38:41,059 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:38:41,060 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:38:41,065 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:38:41,066 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:38:41,066 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:38:41,068 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:38:41,069 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:38:41,070 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:38:41,071 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:38:41,072 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:38:41,073 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:38:41,075 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:38:41,076 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:38:41,077 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:38:41,078 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:38:41,079 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:38:41,080 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:38:41,081 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:38:41,082 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:38:41,084 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 23:38:41,126 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:38:41,127 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:38:41,127 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:38:41,128 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:38:41,129 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:38:41,130 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:38:41,130 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:38:41,131 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:38:41,137 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:38:41,138 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:38:41,138 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:38:41,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:38:41,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:38:41,140 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:38:41,140 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:38:41,140 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:38:41,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:38:41,141 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:38:41,141 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:38:41,142 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:38:41,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:38:41,143 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:38:41,143 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:38:41,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:38:41,144 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:38:41,144 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:38:41,145 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:38:41,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:38:41,147 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:38:41,147 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_7bbb70f1-bba7-4005-9f15-888063e9035d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9bd23263f414c48e50ed8daa5b2985179bde28a9902b6873b1962b90b4067acc [2021-10-28 23:38:41,480 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:38:41,518 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:38:41,521 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:38:41,523 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:38:41,524 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:38:41,525 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2021-10-28 23:38:41,632 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/data/edbc91695/77a3b758228d46afbd58bb4c3a14a105/FLAG7db423ae6 [2021-10-28 23:38:42,303 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:38:42,304 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2021-10-28 23:38:42,328 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/data/edbc91695/77a3b758228d46afbd58bb4c3a14a105/FLAG7db423ae6 [2021-10-28 23:38:42,584 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/data/edbc91695/77a3b758228d46afbd58bb4c3a14a105 [2021-10-28 23:38:42,587 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:38:42,589 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:38:42,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:38:42,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:38:42,617 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:38:42,619 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:38:42" (1/1) ... [2021-10-28 23:38:42,620 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@147bd0b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:38:42, skipping insertion in model container [2021-10-28 23:38:42,621 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:38:42" (1/1) ... [2021-10-28 23:38:42,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:38:42,686 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:38:43,258 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:38:43,291 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 23:38:43,292 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@43baeb1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:38:43, skipping insertion in model container [2021-10-28 23:38:43,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:38:43,293 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-28 23:38:43,297 INFO L168 Benchmark]: Toolchain (without parser) took 705.41 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 80.7 MB in the beginning and 107.5 MB in the end (delta: -26.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:38:43,299 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 113.2 MB. Free memory is still 68.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:38:43,301 INFO L168 Benchmark]: CACSL2BoogieTranslator took 680.84 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 80.7 MB in the beginning and 107.5 MB in the end (delta: -26.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:38:43,304 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 113.2 MB. Free memory is still 68.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 680.84 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 80.7 MB in the beginning and 107.5 MB in the end (delta: -26.9 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 23:38:46,195 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:38:46,199 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:38:46,268 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:38:46,268 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:38:46,274 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:38:46,276 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:38:46,284 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:38:46,287 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:38:46,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:38:46,296 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:38:46,298 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:38:46,299 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:38:46,302 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:38:46,304 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:38:46,310 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:38:46,312 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:38:46,313 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:38:46,316 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:38:46,327 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:38:46,329 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:38:46,331 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:38:46,334 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:38:46,338 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:38:46,349 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:38:46,350 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:38:46,350 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:38:46,353 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:38:46,353 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:38:46,355 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:38:46,355 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:38:46,356 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:38:46,359 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:38:46,360 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:38:46,362 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:38:46,362 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:38:46,363 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:38:46,364 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:38:46,364 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:38:46,366 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:38:46,367 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:38:46,368 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 23:38:46,424 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:38:46,424 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:38:46,425 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:38:46,425 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:38:46,428 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:38:46,428 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:38:46,428 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:38:46,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:38:46,429 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:38:46,429 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:38:46,430 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:38:46,431 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:38:46,431 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:38:46,431 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:38:46,432 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:38:46,432 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:38:46,432 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:38:46,432 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:38:46,433 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 23:38:46,433 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 23:38:46,433 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:38:46,433 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:38:46,434 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:38:46,434 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:38:46,434 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:38:46,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:38:46,435 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:38:46,435 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:38:46,436 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 23:38:46,436 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 23:38:46,436 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:38:46,436 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 23:38:46,437 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_7bbb70f1-bba7-4005-9f15-888063e9035d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9bd23263f414c48e50ed8daa5b2985179bde28a9902b6873b1962b90b4067acc [2021-10-28 23:38:46,937 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:38:46,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:38:46,990 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:38:46,991 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:38:46,992 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:38:46,994 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2021-10-28 23:38:47,088 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/data/b4066f0a7/9b5c4575b7424e79ad20d83e19802c38/FLAG69bb606d3 [2021-10-28 23:38:47,942 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:38:47,942 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2021-10-28 23:38:47,966 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/data/b4066f0a7/9b5c4575b7424e79ad20d83e19802c38/FLAG69bb606d3 [2021-10-28 23:38:48,177 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/data/b4066f0a7/9b5c4575b7424e79ad20d83e19802c38 [2021-10-28 23:38:48,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:38:48,182 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:38:48,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:38:48,191 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:38:48,196 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:38:48,197 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:38:48" (1/1) ... [2021-10-28 23:38:48,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7748a53e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:38:48, skipping insertion in model container [2021-10-28 23:38:48,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:38:48" (1/1) ... [2021-10-28 23:38:48,208 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:38:48,290 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:38:48,993 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:38:49,022 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-28 23:38:49,039 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:38:49,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:38:49,154 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:38:49,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:38:49,345 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:38:49,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:38:49 WrapperNode [2021-10-28 23:38:49,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:38:49,349 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:38:49,349 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:38:49,360 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:38:49,375 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:38:49" (1/1) ... [2021-10-28 23:38:49,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:38:49" (1/1) ... [2021-10-28 23:38:49,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:38:49" (1/1) ... [2021-10-28 23:38:49,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:38:49" (1/1) ... [2021-10-28 23:38:49,513 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:38:49" (1/1) ... [2021-10-28 23:38:49,520 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:38:49" (1/1) ... [2021-10-28 23:38:49,535 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:38:49" (1/1) ... [2021-10-28 23:38:49,568 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:38:49,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:38:49,569 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:38:49,569 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:38:49,570 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:38:49" (1/1) ... [2021-10-28 23:38:49,579 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:38:49,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:38:49,606 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:38:49,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:38:49,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 23:38:49,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:38:49,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 23:38:49,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:38:49,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 23:38:49,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 23:38:49,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 23:38:49,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 23:38:49,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 23:38:49,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-28 23:38:49,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-28 23:38:49,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-28 23:38:49,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-28 23:38:49,669 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-28 23:38:49,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-28 23:38:49,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-28 23:38:49,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-28 23:38:49,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-28 23:38:49,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-28 23:38:49,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-28 23:38:49,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-28 23:38:49,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-28 23:38:49,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-28 23:38:49,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-28 23:38:49,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-28 23:38:49,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-28 23:38:49,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-28 23:38:49,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-28 23:38:49,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-28 23:38:49,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-28 23:38:49,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-28 23:38:49,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-28 23:38:49,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-28 23:38:49,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-28 23:38:49,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-28 23:38:49,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-28 23:38:49,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-28 23:38:49,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-28 23:38:49,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-28 23:38:49,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-28 23:38:49,676 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-28 23:38:49,676 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-28 23:38:49,676 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-28 23:38:49,677 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 23:38:49,677 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-28 23:38:49,677 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-28 23:38:49,678 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-28 23:38:49,678 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 23:38:49,678 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 23:38:49,678 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 23:38:49,679 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 23:38:49,679 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 23:38:49,679 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 23:38:49,679 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 23:38:49,680 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 23:38:49,680 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 23:38:49,680 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 23:38:49,680 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 23:38:49,681 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 23:38:49,681 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 23:38:49,681 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 23:38:49,682 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 23:38:49,682 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 23:38:49,682 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 23:38:49,682 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 23:38:49,683 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 23:38:49,683 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 23:38:49,683 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 23:38:49,683 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 23:38:49,684 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 23:38:49,684 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 23:38:49,684 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 23:38:49,684 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 23:38:49,685 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 23:38:49,685 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 23:38:49,685 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 23:38:49,685 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 23:38:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 23:38:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 23:38:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 23:38:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 23:38:49,687 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 23:38:49,687 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 23:38:49,687 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 23:38:49,687 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 23:38:49,688 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 23:38:49,688 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 23:38:49,688 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 23:38:49,688 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 23:38:49,689 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 23:38:49,689 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 23:38:49,689 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 23:38:49,689 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 23:38:49,690 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 23:38:49,690 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 23:38:49,690 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 23:38:49,691 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 23:38:49,691 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 23:38:49,691 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 23:38:49,691 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 23:38:49,692 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 23:38:49,692 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 23:38:49,693 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 23:38:49,693 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 23:38:49,693 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 23:38:49,693 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 23:38:49,694 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 23:38:49,694 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 23:38:49,694 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 23:38:49,694 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 23:38:49,695 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 23:38:49,695 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 23:38:49,695 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 23:38:49,696 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 23:38:49,696 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 23:38:49,696 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 23:38:49,696 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 23:38:49,697 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 23:38:49,697 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 23:38:49,697 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 23:38:49,697 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 23:38:49,698 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 23:38:49,698 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 23:38:49,698 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 23:38:49,698 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 23:38:49,699 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 23:38:49,699 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 23:38:49,699 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 23:38:49,699 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 23:38:49,700 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 23:38:49,700 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 23:38:49,700 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 23:38:49,700 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 23:38:49,701 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 23:38:49,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 23:38:49,701 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 23:38:49,702 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 23:38:49,702 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 23:38:49,702 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 23:38:49,702 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 23:38:49,703 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 23:38:49,703 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 23:38:49,703 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 23:38:49,703 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 23:38:49,704 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 23:38:49,704 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 23:38:49,704 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 23:38:49,704 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 23:38:49,704 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 23:38:49,705 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 23:38:49,705 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 23:38:49,705 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 23:38:49,705 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 23:38:49,706 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 23:38:49,706 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-28 23:38:49,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 23:38:49,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-28 23:38:49,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-28 23:38:49,707 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-28 23:38:49,707 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-28 23:38:49,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-28 23:38:49,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:38:49,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-28 23:38:49,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-28 23:38:49,708 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-28 23:38:49,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 23:38:49,709 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-28 23:38:49,709 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-28 23:38:49,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-28 23:38:49,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 23:38:49,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-28 23:38:49,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-28 23:38:49,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-28 23:38:49,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-28 23:38:49,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-28 23:38:49,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-28 23:38:49,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:38:49,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-28 23:38:49,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-28 23:38:49,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-28 23:38:49,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-28 23:38:49,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-28 23:38:49,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 23:38:49,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 23:38:49,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-28 23:38:49,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-28 23:38:49,714 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 23:38:49,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-28 23:38:49,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-28 23:38:49,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-28 23:38:49,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-28 23:38:49,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-28 23:38:49,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-28 23:38:49,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-28 23:38:49,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-28 23:38:49,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-28 23:38:49,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-28 23:38:49,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-28 23:38:49,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-28 23:38:49,717 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-28 23:38:49,717 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-28 23:38:49,717 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-28 23:38:49,718 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 23:38:49,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 23:38:49,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:38:49,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 23:38:49,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:38:49,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:38:49,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-28 23:38:49,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-28 23:38:49,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-28 23:38:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-28 23:38:50,425 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:38:50,905 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:38:51,281 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:38:51,281 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-28 23:38:51,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:38:51 BoogieIcfgContainer [2021-10-28 23:38:51,285 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:38:51,287 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:38:51,287 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:38:51,291 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:38:51,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:38:48" (1/3) ... [2021-10-28 23:38:51,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c85efe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:38:51, skipping insertion in model container [2021-10-28 23:38:51,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:38:49" (2/3) ... [2021-10-28 23:38:51,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c85efe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:38:51, skipping insertion in model container [2021-10-28 23:38:51,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:38:51" (3/3) ... [2021-10-28 23:38:51,295 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test4-1.i [2021-10-28 23:38:51,301 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:38:51,302 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 74 error locations. [2021-10-28 23:38:51,356 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:38:51,363 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 23:38:51,363 INFO L340 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2021-10-28 23:38:51,382 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 54 states have (on average 1.5185185185185186) internal successors, (82), 75 states have internal predecessors, (82), 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 23:38:51,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 23:38:51,391 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:51,392 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:51,392 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 70 more)] === [2021-10-28 23:38:51,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:51,399 INFO L85 PathProgramCache]: Analyzing trace with hash 927863930, now seen corresponding path program 1 times [2021-10-28 23:38:51,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:38:51,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1750679209] [2021-10-28 23:38:51,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:51,415 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:38:51,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:38:51,419 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:38:51,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 23:38:51,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:51,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:38:51,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:51,825 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 23:38:51,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:38:51,972 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 23:38:51,976 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:38:51,977 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1750679209] [2021-10-28 23:38:51,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1750679209] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:38:51,979 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:38:51,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 23:38:51,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754097504] [2021-10-28 23:38:51,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:38:51,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:38:52,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:38:52,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:38:52,022 INFO L87 Difference]: Start difference. First operand has 98 states, 54 states have (on average 1.5185185185185186) internal successors, (82), 75 states have internal predecessors, (82), 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 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:38:52,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:52,079 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2021-10-28 23:38:52,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:38:52,082 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 16 [2021-10-28 23:38:52,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:52,093 INFO L225 Difference]: With dead ends: 42 [2021-10-28 23:38:52,094 INFO L226 Difference]: Without dead ends: 39 [2021-10-28 23:38:52,096 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:38:52,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-10-28 23:38:52,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 29. [2021-10-28 23:38:52,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 16 states have (on average 1.3125) internal successors, (21), 19 states have internal predecessors, (21), 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 23:38:52,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2021-10-28 23:38:52,150 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 16 [2021-10-28 23:38:52,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:52,151 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2021-10-28 23:38:52,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:38:52,151 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2021-10-28 23:38:52,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 23:38:52,154 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:52,154 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:52,181 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-28 23:38:52,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:38:52,377 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 70 more)] === [2021-10-28 23:38:52,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:52,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1624293031, now seen corresponding path program 1 times [2021-10-28 23:38:52,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:38:52,379 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1758832309] [2021-10-28 23:38:52,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:52,380 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:38:52,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:38:52,381 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:38:52,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 23:38:52,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:52,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:38:52,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:52,687 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 23:38:52,687 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:38:52,829 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 23:38:52,830 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:38:52,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1758832309] [2021-10-28 23:38:52,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1758832309] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:38:52,832 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:38:52,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 23:38:52,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054248519] [2021-10-28 23:38:52,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:38:52,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:38:52,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:38:52,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:38:52,845 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 23:38:52,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:52,903 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2021-10-28 23:38:52,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:38:52,904 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 16 [2021-10-28 23:38:52,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:52,906 INFO L225 Difference]: With dead ends: 40 [2021-10-28 23:38:52,907 INFO L226 Difference]: Without dead ends: 37 [2021-10-28 23:38:52,908 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:38:52,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-28 23:38:52,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 25. [2021-10-28 23:38:52,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 16 states have internal predecessors, (17), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-10-28 23:38:52,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2021-10-28 23:38:52,918 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 16 [2021-10-28 23:38:52,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:52,919 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2021-10-28 23:38:52,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 23:38:52,920 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2021-10-28 23:38:52,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-28 23:38:52,921 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:52,921 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:52,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:53,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:38:53,136 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 23:38:53,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:53,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1911181477, now seen corresponding path program 1 times [2021-10-28 23:38:53,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:38:53,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1333059358] [2021-10-28 23:38:53,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:53,138 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:38:53,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:38:53,140 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:38:53,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 23:38:53,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:53,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:38:53,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:53,454 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 23:38:53,455 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:38:53,545 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 23:38:53,546 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:38:53,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1333059358] [2021-10-28 23:38:53,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1333059358] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:38:53,547 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:38:53,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-28 23:38:53,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460812827] [2021-10-28 23:38:53,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:38:53,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:38:53,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:38:53,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:38:53,554 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 23:38:53,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:53,575 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2021-10-28 23:38:53,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:38:53,576 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 20 [2021-10-28 23:38:53,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:53,579 INFO L225 Difference]: With dead ends: 24 [2021-10-28 23:38:53,579 INFO L226 Difference]: Without dead ends: 24 [2021-10-28 23:38:53,580 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 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 23:38:53,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-10-28 23:38:53,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-10-28 23:38:53,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-10-28 23:38:53,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2021-10-28 23:38:53,593 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 20 [2021-10-28 23:38:53,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:53,594 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2021-10-28 23:38:53,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 23:38:53,595 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2021-10-28 23:38:53,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-28 23:38:53,600 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:53,600 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:53,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:53,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:38:53,815 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 23:38:53,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:53,817 INFO L85 PathProgramCache]: Analyzing trace with hash 882916751, now seen corresponding path program 1 times [2021-10-28 23:38:53,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:38:53,830 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [92264612] [2021-10-28 23:38:53,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:53,833 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:38:53,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:38:53,835 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:38:53,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 23:38:54,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:54,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 23:38:54,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:54,606 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 23:38:54,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:38:54,819 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 23:38:54,819 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:38:54,819 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [92264612] [2021-10-28 23:38:54,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [92264612] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:38:54,820 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:38:54,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 4] imperfect sequences [] total 9 [2021-10-28 23:38:54,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472617162] [2021-10-28 23:38:54,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:38:54,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:38:54,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:38:54,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:38:54,822 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 3 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2021-10-28 23:38:55,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:55,028 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2021-10-28 23:38:55,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:38:55,030 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 3 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 21 [2021-10-28 23:38:55,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:55,031 INFO L225 Difference]: With dead ends: 38 [2021-10-28 23:38:55,031 INFO L226 Difference]: Without dead ends: 38 [2021-10-28 23:38:55,032 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:38:55,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-10-28 23:38:55,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 23. [2021-10-28 23:38:55,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-10-28 23:38:55,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2021-10-28 23:38:55,037 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 21 [2021-10-28 23:38:55,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:55,038 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2021-10-28 23:38:55,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 3 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2021-10-28 23:38:55,038 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2021-10-28 23:38:55,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-28 23:38:55,039 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:55,039 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:55,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:55,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:38:55,255 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 23:38:55,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:55,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1600615901, now seen corresponding path program 1 times [2021-10-28 23:38:55,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:38:55,256 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2045156486] [2021-10-28 23:38:55,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:55,261 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:38:55,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:38:55,262 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:38:55,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 23:38:55,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:55,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:38:55,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:55,585 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 23:38:55,633 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 23:38:55,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:38:55,745 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 23:38:55,746 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:38:55,746 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2045156486] [2021-10-28 23:38:55,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2045156486] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:38:55,746 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:38:55,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-28 23:38:55,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719041364] [2021-10-28 23:38:55,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:38:55,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:38:55,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:38:55,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:38:55,749 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 23:38:55,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:55,812 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2021-10-28 23:38:55,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:38:55,813 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 22 [2021-10-28 23:38:55,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:55,815 INFO L225 Difference]: With dead ends: 29 [2021-10-28 23:38:55,816 INFO L226 Difference]: Without dead ends: 29 [2021-10-28 23:38:55,817 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 1 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 23:38:55,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-28 23:38:55,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-28 23:38:55,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 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 23:38:55,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2021-10-28 23:38:55,827 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 22 [2021-10-28 23:38:55,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:55,827 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2021-10-28 23:38:55,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 23:38:55,828 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2021-10-28 23:38:55,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-28 23:38:55,831 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:55,831 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] [2021-10-28 23:38:55,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:56,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:38:56,046 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 23:38:56,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:56,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1806847714, now seen corresponding path program 1 times [2021-10-28 23:38:56,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:38:56,047 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [389489030] [2021-10-28 23:38:56,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:56,048 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:38:56,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:38:56,049 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:38:56,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 23:38:56,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:38:56,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:38:56,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:38:56,390 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 23:38:56,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:38:56,511 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 23:38:56,512 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:38:56,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [389489030] [2021-10-28 23:38:56,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [389489030] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:38:56,513 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:38:56,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-28 23:38:56,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117166301] [2021-10-28 23:38:56,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:38:56,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:38:56,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:38:56,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:38:56,515 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 23:38:56,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:38:56,538 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2021-10-28 23:38:56,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:38:56,539 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 22 [2021-10-28 23:38:56,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:38:56,541 INFO L225 Difference]: With dead ends: 30 [2021-10-28 23:38:56,541 INFO L226 Difference]: Without dead ends: 30 [2021-10-28 23:38:56,541 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 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 23:38:56,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-10-28 23:38:56,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 22. [2021-10-28 23:38:56,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-10-28 23:38:56,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2021-10-28 23:38:56,546 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 22 [2021-10-28 23:38:56,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:38:56,546 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2021-10-28 23:38:56,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 23:38:56,547 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2021-10-28 23:38:56,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 23:38:56,548 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:38:56,548 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 23:38:56,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:56,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:38:56,762 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-10-28 23:38:56,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:38:56,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1221784944, now seen corresponding path program 1 times [2021-10-28 23:38:56,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:38:56,763 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1550471733] [2021-10-28 23:38:56,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:38:56,763 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:38:56,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:38:56,765 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:38:56,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-28 23:38:57,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:38:57,069 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:38:57,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:38:57,168 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-28 23:38:57,176 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:38:57,178 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 23:38:57,180 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-28 23:38:57,181 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-28 23:38:57,181 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-28 23:38:57,181 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-28 23:38:57,182 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-28 23:38:57,193 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-28 23:38:57,193 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-28 23:38:57,193 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-28 23:38:57,194 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-28 23:38:57,194 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-28 23:38:57,194 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-28 23:38:57,194 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-28 23:38:57,195 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 23:38:57,195 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 23:38:57,195 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-28 23:38:57,195 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-28 23:38:57,196 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-28 23:38:57,196 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-28 23:38:57,196 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-28 23:38:57,196 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-28 23:38:57,196 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-28 23:38:57,197 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-28 23:38:57,197 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 23:38:57,197 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 23:38:57,197 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 23:38:57,198 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 23:38:57,198 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-28 23:38:57,198 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-28 23:38:57,198 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-28 23:38:57,199 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-28 23:38:57,199 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 23:38:57,199 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 23:38:57,199 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-28 23:38:57,200 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-28 23:38:57,200 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-28 23:38:57,200 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-28 23:38:57,200 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-28 23:38:57,201 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-28 23:38:57,201 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-28 23:38:57,201 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-28 23:38:57,201 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-28 23:38:57,202 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-28 23:38:57,202 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:38:57,202 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:38:57,202 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:38:57,203 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:38:57,203 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:38:57,203 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:38:57,203 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-28 23:38:57,204 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-28 23:38:57,204 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-28 23:38:57,204 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-28 23:38:57,204 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-28 23:38:57,205 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-28 23:38:57,205 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-28 23:38:57,205 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-28 23:38:57,205 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:38:57,214 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:38:57,214 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:38:57,214 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:38:57,215 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:38:57,215 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:38:57,215 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-28 23:38:57,215 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-28 23:38:57,216 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 23:38:57,216 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 23:38:57,216 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 23:38:57,216 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 23:38:57,217 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-28 23:38:57,217 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-28 23:38:57,217 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:38:57,217 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:38:57,218 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:38:57,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:38:57,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:38:57,437 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:38:57,441 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:38:57,449 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-28 23:38:57,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:38:57 BoogieIcfgContainer [2021-10-28 23:38:57,474 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:38:57,475 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:38:57,475 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:38:57,476 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:38:57,476 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:38:51" (3/4) ... [2021-10-28 23:38:57,480 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:38:57,480 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:38:57,482 INFO L168 Benchmark]: Toolchain (without parser) took 9299.29 ms. Allocated memory was 62.9 MB in the beginning and 102.8 MB in the end (delta: 39.8 MB). Free memory was 40.3 MB in the beginning and 41.0 MB in the end (delta: -628.0 kB). Peak memory consumption was 38.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:38:57,483 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 62.9 MB. Free memory is still 43.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:38:57,483 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1156.29 ms. Allocated memory is still 62.9 MB. Free memory was 40.0 MB in the beginning and 27.5 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:38:57,484 INFO L168 Benchmark]: Boogie Preprocessor took 219.54 ms. Allocated memory is still 62.9 MB. Free memory was 27.5 MB in the beginning and 40.2 MB in the end (delta: -12.7 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:38:57,485 INFO L168 Benchmark]: RCFGBuilder took 1716.11 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 40.2 MB in the beginning and 53.5 MB in the end (delta: -13.3 MB). Peak memory consumption was 27.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:38:57,485 INFO L168 Benchmark]: TraceAbstraction took 6187.35 ms. Allocated memory was 81.8 MB in the beginning and 102.8 MB in the end (delta: 21.0 MB). Free memory was 53.2 MB in the beginning and 41.9 MB in the end (delta: 11.3 MB). Peak memory consumption was 33.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:38:57,486 INFO L168 Benchmark]: Witness Printer took 5.43 ms. Allocated memory is still 102.8 MB. Free memory was 41.9 MB in the beginning and 41.0 MB in the end (delta: 886.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:38:57,489 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 62.9 MB. Free memory is still 43.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1156.29 ms. Allocated memory is still 62.9 MB. Free memory was 40.0 MB in the beginning and 27.5 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 219.54 ms. Allocated memory is still 62.9 MB. Free memory was 27.5 MB in the beginning and 40.2 MB in the end (delta: -12.7 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1716.11 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 40.2 MB in the beginning and 53.5 MB in the end (delta: -13.3 MB). Peak memory consumption was 27.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6187.35 ms. Allocated memory was 81.8 MB in the beginning and 102.8 MB in the end (delta: 21.0 MB). Free memory was 53.2 MB in the beginning and 41.9 MB in the end (delta: 11.3 MB). Peak memory consumption was 33.5 MB. Max. memory is 16.1 GB. * Witness Printer took 5.43 ms. Allocated memory is still 102.8 MB. Free memory was 41.9 MB in the beginning and 41.0 MB in the end (delta: 886.5 kB). 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 764]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 764. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [\old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, ldv_global_msg_list={-2147483648:0}] [L765] CALL entry_point() VAL [ldv_global_msg_list={-2147483648:0}] [L758] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, ldv_global_msg_list={-2147483648:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L758] RET, EXPR ldv_malloc(sizeof(int)) VAL [ldv_global_msg_list={-2147483648:0}, ldv_malloc(sizeof(int))={1:0}] [L758] int *p = (int *)ldv_malloc(sizeof(int)); [L759] COND TRUE \read(*p) VAL [ldv_global_msg_list={-2147483648:0}, p={1:0}] [L760] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, ldv_global_msg_list={-2147483648:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L760] RET, EXPR ldv_malloc(sizeof(int)) VAL [ldv_global_msg_list={-2147483648:0}, ldv_malloc(sizeof(int))={2:0}, p={1:0}] [L760] int *q = (int *)ldv_malloc(sizeof(int)); [L761] free(q) VAL [ldv_global_msg_list={-2147483648:0}, p={1:0}, q={2:0}] [L761] free(q) VAL [ldv_global_msg_list={-2147483648:0}, p={1:0}, q={2:0}] [L761] free(q) [L765] RET entry_point() VAL [ldv_global_msg_list={-2147483648:0}] - 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: 761]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 761]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 761]: 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, 338 locations, 74 error locations. Started 1 CEGAR loops. OverallTime: 6.0s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 161 SDtfs, 64 SDslu, 321 SDs, 0 SdLazy, 134 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 228 GetRequests, 206 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=0, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 45 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 222 ConstructedInterpolants, 12 QuantifiedInterpolants, 542 SizeOfPredicates, 1 NumberOfNonLiveVariables, 455 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 32/32 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 23:38:57,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbb70f1-bba7-4005-9f15-888063e9035d/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...