./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f002fb5adc832f6023a0c06b1c5ecdb23a860b09113c230254f6be0919311eb2 ................................................................................................................................... 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_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f002fb5adc832f6023a0c06b1c5ecdb23a860b09113c230254f6be0919311eb2 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:48:50,213 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:48:50,215 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:48:50,252 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:48:50,253 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:48:50,254 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:48:50,257 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:48:50,260 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:48:50,262 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:48:50,264 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:48:50,265 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:48:50,267 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:48:50,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:48:50,270 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:48:50,272 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:48:50,274 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:48:50,275 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:48:50,276 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:48:50,279 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:48:50,283 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:48:50,285 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:48:50,294 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:48:50,298 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:48:50,301 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:48:50,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:48:50,307 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:48:50,307 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:48:50,308 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:48:50,309 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:48:50,311 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:48:50,311 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:48:50,312 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:48:50,314 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:48:50,315 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:48:50,316 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:48:50,317 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:48:50,318 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:48:50,318 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:48:50,319 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:48:50,320 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:48:50,321 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:48:50,322 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-21 19:48:50,352 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:48:50,353 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:48:50,353 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:48:50,353 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:48:50,355 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:48:50,355 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:48:50,355 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:48:50,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:48:50,356 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:48:50,356 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:48:50,357 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:48:50,357 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:48:50,357 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:48:50,357 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-21 19:48:50,358 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-21 19:48:50,358 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-21 19:48:50,358 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:48:50,358 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-21 19:48:50,359 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:48:50,359 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:48:50,359 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:48:50,360 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:48:50,360 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:48:50,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:48:50,361 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:48:50,361 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:48:50,361 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:48:50,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:48:50,362 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:48:50,362 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_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f002fb5adc832f6023a0c06b1c5ecdb23a860b09113c230254f6be0919311eb2 [2021-10-21 19:48:50,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:48:50,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:48:50,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:48:50,682 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:48:50,683 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:48:50,684 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-1.i [2021-10-21 19:48:50,777 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/data/20667cb10/e39087801b7d4d0c8669635b7f0190cd/FLAGf3df01dc1 [2021-10-21 19:48:51,418 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:48:51,419 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-1.i [2021-10-21 19:48:51,441 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/data/20667cb10/e39087801b7d4d0c8669635b7f0190cd/FLAGf3df01dc1 [2021-10-21 19:48:51,692 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/data/20667cb10/e39087801b7d4d0c8669635b7f0190cd [2021-10-21 19:48:51,695 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:48:51,697 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-21 19:48:51,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:48:51,703 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:48:51,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:48:51,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:48:51" (1/1) ... [2021-10-21 19:48:51,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77184370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:51, skipping insertion in model container [2021-10-21 19:48:51,713 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:48:51" (1/1) ... [2021-10-21 19:48:51,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:48:51,788 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:48:52,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:48:52,425 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-21 19:48:52,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5611849a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:52, skipping insertion in model container [2021-10-21 19:48:52,427 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:48:52,428 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-21 19:48:52,437 INFO L168 Benchmark]: Toolchain (without parser) took 731.92 ms. Allocated memory is still 98.6 MB. Free memory was 64.1 MB in the beginning and 69.3 MB in the end (delta: -5.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:48:52,438 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 98.6 MB. Free memory is still 53.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:48:52,440 INFO L168 Benchmark]: CACSL2BoogieTranslator took 725.09 ms. Allocated memory is still 98.6 MB. Free memory was 63.9 MB in the beginning and 69.3 MB in the end (delta: -5.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:48:52,443 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 98.6 MB. Free memory is still 53.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 725.09 ms. Allocated memory is still 98.6 MB. Free memory was 63.9 MB in the beginning and 69.3 MB in the end (delta: -5.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:48:55,238 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:48:55,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:48:55,292 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:48:55,293 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:48:55,295 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:48:55,297 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:48:55,300 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:48:55,302 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:48:55,304 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:48:55,305 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:48:55,307 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:48:55,308 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:48:55,309 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:48:55,311 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:48:55,313 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:48:55,314 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:48:55,316 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:48:55,319 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:48:55,322 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:48:55,324 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:48:55,326 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:48:55,328 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:48:55,329 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:48:55,333 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:48:55,334 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:48:55,335 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:48:55,336 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:48:55,337 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:48:55,338 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:48:55,339 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:48:55,340 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:48:55,342 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:48:55,343 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:48:55,345 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:48:55,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:48:55,346 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:48:55,347 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:48:55,347 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:48:55,349 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:48:55,350 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:48:55,351 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-21 19:48:55,405 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:48:55,406 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:48:55,407 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:48:55,407 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:48:55,410 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:48:55,410 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:48:55,410 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:48:55,411 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:48:55,411 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:48:55,411 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:48:55,413 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:48:55,413 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:48:55,413 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:48:55,414 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-21 19:48:55,414 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-21 19:48:55,414 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-21 19:48:55,415 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:48:55,415 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-21 19:48:55,415 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-21 19:48:55,415 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-21 19:48:55,416 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:48:55,416 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:48:55,416 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:48:55,416 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:48:55,417 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:48:55,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:48:55,417 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:48:55,418 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:48:55,418 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-21 19:48:55,418 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-21 19:48:55,419 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:48:55,419 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-21 19:48:55,419 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_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f002fb5adc832f6023a0c06b1c5ecdb23a860b09113c230254f6be0919311eb2 [2021-10-21 19:48:55,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:48:55,935 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:48:55,938 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:48:55,940 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:48:55,941 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:48:55,942 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-1.i [2021-10-21 19:48:56,034 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/data/9891bc169/61cda82accc84a81a78755bfa85218b2/FLAGda79123f3 [2021-10-21 19:48:56,870 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:48:56,871 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-1.i [2021-10-21 19:48:56,889 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/data/9891bc169/61cda82accc84a81a78755bfa85218b2/FLAGda79123f3 [2021-10-21 19:48:56,904 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/data/9891bc169/61cda82accc84a81a78755bfa85218b2 [2021-10-21 19:48:56,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:48:56,908 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-21 19:48:56,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:48:56,910 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:48:56,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:48:56,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:48:56" (1/1) ... [2021-10-21 19:48:56,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@457cf1f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:56, skipping insertion in model container [2021-10-21 19:48:56,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:48:56" (1/1) ... [2021-10-21 19:48:56,927 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:48:57,024 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:48:57,582 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:48:57,613 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-21 19:48:57,632 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:48:57,692 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:48:57,713 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:48:57,814 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:48:57,878 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:48:57,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:57 WrapperNode [2021-10-21 19:48:57,879 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:48:57,880 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:48:57,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:48:57,880 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:48:57,894 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:57" (1/1) ... [2021-10-21 19:48:57,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:57" (1/1) ... [2021-10-21 19:48:57,925 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:57" (1/1) ... [2021-10-21 19:48:57,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:57" (1/1) ... [2021-10-21 19:48:57,965 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:57" (1/1) ... [2021-10-21 19:48:57,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:57" (1/1) ... [2021-10-21 19:48:57,981 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:57" (1/1) ... [2021-10-21 19:48:57,995 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:48:57,996 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:48:57,997 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:48:57,997 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:48:57,998 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:57" (1/1) ... [2021-10-21 19:48:58,007 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:48:58,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:48:58,049 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:48:58,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:48:58,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-21 19:48:58,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:48:58,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-21 19:48:58,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-21 19:48:58,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-21 19:48:58,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-21 19:48:58,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-21 19:48:58,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-21 19:48:58,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-21 19:48:58,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-21 19:48:58,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-21 19:48:58,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-21 19:48:58,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-21 19:48:58,104 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-21 19:48:58,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-21 19:48:58,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-21 19:48:58,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-21 19:48:58,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-21 19:48:58,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-21 19:48:58,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-21 19:48:58,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-21 19:48:58,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-21 19:48:58,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-21 19:48:58,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-21 19:48:58,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-21 19:48:58,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-21 19:48:58,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-21 19:48:58,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-21 19:48:58,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-21 19:48:58,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-21 19:48:58,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-21 19:48:58,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-21 19:48:58,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-21 19:48:58,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-21 19:48:58,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-21 19:48:58,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-21 19:48:58,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-21 19:48:58,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-21 19:48:58,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-21 19:48:58,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-21 19:48:58,109 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-21 19:48:58,109 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-21 19:48:58,110 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-21 19:48:58,111 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-21 19:48:58,111 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-21 19:48:58,111 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-21 19:48:58,112 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-21 19:48:58,112 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-21 19:48:58,113 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-21 19:48:58,113 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-21 19:48:58,113 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-21 19:48:58,113 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-21 19:48:58,113 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-21 19:48:58,114 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-21 19:48:58,114 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-21 19:48:58,114 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-21 19:48:58,115 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-21 19:48:58,115 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-21 19:48:58,115 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-21 19:48:58,116 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-21 19:48:58,116 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-21 19:48:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-21 19:48:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-21 19:48:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-21 19:48:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-21 19:48:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-21 19:48:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-21 19:48:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-21 19:48:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-21 19:48:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-21 19:48:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-21 19:48:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-21 19:48:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-21 19:48:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-21 19:48:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-21 19:48:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-21 19:48:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-21 19:48:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-21 19:48:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-21 19:48:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-21 19:48:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-21 19:48:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-21 19:48:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-21 19:48:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-21 19:48:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-21 19:48:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-21 19:48:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-21 19:48:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-21 19:48:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-21 19:48:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-21 19:48:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-21 19:48:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-21 19:48:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-21 19:48:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-21 19:48:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-21 19:48:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-21 19:48:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-21 19:48:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-21 19:48:58,128 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-21 19:48:58,128 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-21 19:48:58,128 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-21 19:48:58,128 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-21 19:48:58,128 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-21 19:48:58,128 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-21 19:48:58,129 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-21 19:48:58,129 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-21 19:48:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-21 19:48:58,131 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-21 19:48:58,131 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-21 19:48:58,131 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-21 19:48:58,131 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-21 19:48:58,131 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-21 19:48:58,131 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-21 19:48:58,132 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-21 19:48:58,132 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-21 19:48:58,132 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-21 19:48:58,132 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-21 19:48:58,132 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-21 19:48:58,132 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-21 19:48:58,133 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-21 19:48:58,133 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-21 19:48:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-21 19:48:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-21 19:48:58,135 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-21 19:48:58,139 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-21 19:48:58,139 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-21 19:48:58,140 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-21 19:48:58,140 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-21 19:48:58,141 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-21 19:48:58,141 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-21 19:48:58,141 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-21 19:48:58,141 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-21 19:48:58,141 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-21 19:48:58,147 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-21 19:48:58,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-21 19:48:58,147 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-21 19:48:58,147 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-21 19:48:58,147 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-21 19:48:58,147 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-21 19:48:58,148 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-21 19:48:58,148 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-21 19:48:58,148 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-21 19:48:58,148 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-21 19:48:58,148 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-21 19:48:58,148 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-21 19:48:58,148 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-21 19:48:58,149 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-21 19:48:58,149 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-21 19:48:58,149 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-21 19:48:58,149 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-21 19:48:58,149 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-21 19:48:58,149 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-21 19:48:58,166 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-21 19:48:58,166 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-21 19:48:58,166 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-21 19:48:58,166 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-21 19:48:58,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-21 19:48:58,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-21 19:48:58,167 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-21 19:48:58,167 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-21 19:48:58,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-21 19:48:58,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-21 19:48:58,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-21 19:48:58,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-21 19:48:58,167 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-21 19:48:58,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-21 19:48:58,168 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-21 19:48:58,168 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-21 19:48:58,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-21 19:48:58,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-21 19:48:58,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-21 19:48:58,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-21 19:48:58,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-21 19:48:58,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-21 19:48:58,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-21 19:48:58,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-21 19:48:58,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 19:48:58,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-21 19:48:58,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-21 19:48:58,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-21 19:48:58,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-21 19:48:58,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-21 19:48:58,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-21 19:48:58,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-21 19:48:58,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-21 19:48:58,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-21 19:48:58,171 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-21 19:48:58,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-21 19:48:58,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-21 19:48:58,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-21 19:48:58,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-21 19:48:58,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-21 19:48:58,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-21 19:48:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-21 19:48:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-21 19:48:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-21 19:48:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-21 19:48:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-21 19:48:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-21 19:48:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-21 19:48:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-21 19:48:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-21 19:48:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-21 19:48:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-21 19:48:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:48:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-21 19:48:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:48:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-21 19:48:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-21 19:48:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-21 19:48:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-21 19:48:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-21 19:48:58,842 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-21 19:48:59,340 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-21 19:48:59,805 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:48:59,806 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-21 19:48:59,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:48:59 BoogieIcfgContainer [2021-10-21 19:48:59,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:48:59,824 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:48:59,824 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:48:59,827 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:48:59,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:48:56" (1/3) ... [2021-10-21 19:48:59,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68ee66b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:48:59, skipping insertion in model container [2021-10-21 19:48:59,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:48:57" (2/3) ... [2021-10-21 19:48:59,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68ee66b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:48:59, skipping insertion in model container [2021-10-21 19:48:59,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:48:59" (3/3) ... [2021-10-21 19:48:59,831 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test22_2-1.i [2021-10-21 19:48:59,837 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:48:59,843 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2021-10-21 19:48:59,944 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:48:59,951 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 19:48:59,952 INFO L340 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2021-10-21 19:48:59,973 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 51 states have (on average 1.4705882352941178) internal successors, (75), 69 states have internal predecessors, (75), 12 states have call successors, (12), 11 states have call predecessors, (12), 11 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-10-21 19:48:59,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-21 19:48:59,997 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:48:59,998 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:48:59,999 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_kobject_createErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:49:00,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:49:00,005 INFO L82 PathProgramCache]: Analyzing trace with hash -896940051, now seen corresponding path program 1 times [2021-10-21 19:49:00,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:49:00,030 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [702868265] [2021-10-21 19:49:00,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:49:00,031 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:49:00,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:49:00,039 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:49:00,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-21 19:49:00,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:49:00,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:49:00,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:49:00,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-21 19:49:00,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:49:00,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:49:00,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:49:00,674 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:49:00,683 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [702868265] [2021-10-21 19:49:00,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [702868265] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:49:00,685 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:49:00,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-21 19:49:00,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708967427] [2021-10-21 19:49:00,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:49:00,695 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:49:00,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:49:00,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:49:00,724 INFO L87 Difference]: Start difference. First operand has 92 states, 51 states have (on average 1.4705882352941178) internal successors, (75), 69 states have internal predecessors, (75), 12 states have call successors, (12), 11 states have call predecessors, (12), 11 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 19:49:01,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:49:01,020 INFO L93 Difference]: Finished difference Result 74 states and 81 transitions. [2021-10-21 19:49:01,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:49:01,022 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-10-21 19:49:01,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:49:01,039 INFO L225 Difference]: With dead ends: 74 [2021-10-21 19:49:01,039 INFO L226 Difference]: Without dead ends: 71 [2021-10-21 19:49:01,041 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.4ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:49:01,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-10-21 19:49:01,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 65. [2021-10-21 19:49:01,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 37 states have (on average 1.3513513513513513) internal successors, (50), 46 states have internal predecessors, (50), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2021-10-21 19:49:01,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 72 transitions. [2021-10-21 19:49:01,104 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 72 transitions. Word has length 17 [2021-10-21 19:49:01,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:49:01,104 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 72 transitions. [2021-10-21 19:49:01,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 19:49:01,105 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 72 transitions. [2021-10-21 19:49:01,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-21 19:49:01,106 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:49:01,106 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:49:01,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:49:01,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:49:01,312 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_kobject_createErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:49:01,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:49:01,315 INFO L82 PathProgramCache]: Analyzing trace with hash -896940050, now seen corresponding path program 1 times [2021-10-21 19:49:01,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:49:01,316 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [768353511] [2021-10-21 19:49:01,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:49:01,317 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:49:01,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:49:01,318 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:49:01,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-21 19:49:01,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:49:01,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-21 19:49:01,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:49:01,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-21 19:49:01,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:49:01,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:49:02,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:49:02,318 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:49:02,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [768353511] [2021-10-21 19:49:02,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [768353511] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:49:02,325 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:49:02,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-21 19:49:02,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500665883] [2021-10-21 19:49:02,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-21 19:49:02,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:49:02,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 19:49:02,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:49:02,333 INFO L87 Difference]: Start difference. First operand 65 states and 72 transitions. Second operand has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 19:49:02,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:49:02,889 INFO L93 Difference]: Finished difference Result 70 states and 77 transitions. [2021-10-21 19:49:02,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:49:02,890 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 17 [2021-10-21 19:49:02,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:49:02,892 INFO L225 Difference]: With dead ends: 70 [2021-10-21 19:49:02,892 INFO L226 Difference]: Without dead ends: 70 [2021-10-21 19:49:02,893 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 300.9ms TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-10-21 19:49:02,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-10-21 19:49:02,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 65. [2021-10-21 19:49:02,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 46 states have internal predecessors, (49), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2021-10-21 19:49:02,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 71 transitions. [2021-10-21 19:49:02,903 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 71 transitions. Word has length 17 [2021-10-21 19:49:02,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:49:02,903 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 71 transitions. [2021-10-21 19:49:02,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-21 19:49:02,904 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 71 transitions. [2021-10-21 19:49:02,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-21 19:49:02,905 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:49:02,905 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:49:02,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-21 19:49:03,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:49:03,107 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_kobject_createErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:49:03,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:49:03,108 INFO L82 PathProgramCache]: Analyzing trace with hash -868310900, now seen corresponding path program 1 times [2021-10-21 19:49:03,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:49:03,109 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1999111945] [2021-10-21 19:49:03,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:49:03,109 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:49:03,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:49:03,126 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:49:03,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-21 19:49:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:49:03,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 19:49:03,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:49:03,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:49:03,451 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:49:03,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:49:03,604 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:49:03,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1999111945] [2021-10-21 19:49:03,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1999111945] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:49:03,604 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:49:03,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-21 19:49:03,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771952626] [2021-10-21 19:49:03,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:49:03,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:49:03,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:49:03,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:49:03,606 INFO L87 Difference]: Start difference. First operand 65 states and 71 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 19:49:03,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:49:03,632 INFO L93 Difference]: Finished difference Result 64 states and 68 transitions. [2021-10-21 19:49:03,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:49:03,633 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-10-21 19:49:03,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:49:03,635 INFO L225 Difference]: With dead ends: 64 [2021-10-21 19:49:03,635 INFO L226 Difference]: Without dead ends: 64 [2021-10-21 19:49:03,636 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.3ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:49:03,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-10-21 19:49:03,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62. [2021-10-21 19:49:03,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 43 states have internal predecessors, (46), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 9 states have call successors, (10) [2021-10-21 19:49:03,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions. [2021-10-21 19:49:03,645 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 17 [2021-10-21 19:49:03,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:49:03,646 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 66 transitions. [2021-10-21 19:49:03,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-21 19:49:03,647 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions. [2021-10-21 19:49:03,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-21 19:49:03,648 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:49:03,648 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:49:03,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-21 19:49:03,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:49:03,879 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:49:03,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:49:03,880 INFO L82 PathProgramCache]: Analyzing trace with hash 2008128002, now seen corresponding path program 1 times [2021-10-21 19:49:03,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:49:03,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1864179152] [2021-10-21 19:49:03,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:49:03,881 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:49:03,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:49:03,896 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:49:03,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-21 19:49:04,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:49:04,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:49:04,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:49:04,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:49:04,178 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:49:04,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:49:04,322 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:49:04,322 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1864179152] [2021-10-21 19:49:04,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1864179152] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:49:04,322 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:49:04,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-21 19:49:04,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105010598] [2021-10-21 19:49:04,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:49:04,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:49:04,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:49:04,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:49:04,325 INFO L87 Difference]: Start difference. First operand 62 states and 66 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-21 19:49:04,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:49:04,360 INFO L93 Difference]: Finished difference Result 64 states and 67 transitions. [2021-10-21 19:49:04,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:49:04,361 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) Word has length 22 [2021-10-21 19:49:04,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:49:04,366 INFO L225 Difference]: With dead ends: 64 [2021-10-21 19:49:04,366 INFO L226 Difference]: Without dead ends: 64 [2021-10-21 19:49:04,366 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.6ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:49:04,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-10-21 19:49:04,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62. [2021-10-21 19:49:04,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 43 states have internal predecessors, (45), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 9 states have call successors, (10) [2021-10-21 19:49:04,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 65 transitions. [2021-10-21 19:49:04,385 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 65 transitions. Word has length 22 [2021-10-21 19:49:04,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:49:04,386 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 65 transitions. [2021-10-21 19:49:04,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-21 19:49:04,386 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 65 transitions. [2021-10-21 19:49:04,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-21 19:49:04,387 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:49:04,388 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:49:04,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:49:04,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:49:04,591 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:49:04,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:49:04,592 INFO L82 PathProgramCache]: Analyzing trace with hash 211176643, now seen corresponding path program 1 times [2021-10-21 19:49:04,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:49:04,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [536236906] [2021-10-21 19:49:04,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:49:04,593 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:49:04,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:49:04,595 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:49:04,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-21 19:49:04,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:49:04,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 19:49:04,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:49:04,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:49:04,905 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:49:05,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:49:05,091 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:49:05,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [536236906] [2021-10-21 19:49:05,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [536236906] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:49:05,092 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:49:05,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-21 19:49:05,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669868554] [2021-10-21 19:49:05,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:49:05,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:49:05,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:49:05,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:49:05,094 INFO L87 Difference]: Start difference. First operand 62 states and 65 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-21 19:49:05,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:49:05,194 INFO L93 Difference]: Finished difference Result 68 states and 70 transitions. [2021-10-21 19:49:05,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:49:05,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 22 [2021-10-21 19:49:05,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:49:05,196 INFO L225 Difference]: With dead ends: 68 [2021-10-21 19:49:05,196 INFO L226 Difference]: Without dead ends: 58 [2021-10-21 19:49:05,196 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:49:05,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-10-21 19:49:05,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2021-10-21 19:49:05,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 32 states have (on average 1.28125) internal successors, (41), 40 states have internal predecessors, (41), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-10-21 19:49:05,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2021-10-21 19:49:05,202 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 22 [2021-10-21 19:49:05,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:49:05,202 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2021-10-21 19:49:05,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-21 19:49:05,203 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2021-10-21 19:49:05,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-21 19:49:05,204 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:49:05,204 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:49:05,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:49:05,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:49:05,416 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_kref_initErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:49:05,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:49:05,417 INFO L82 PathProgramCache]: Analyzing trace with hash -45428445, now seen corresponding path program 1 times [2021-10-21 19:49:05,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:49:05,417 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [274582176] [2021-10-21 19:49:05,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:49:05,418 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:49:05,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:49:05,419 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:49:05,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-21 19:49:05,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:49:05,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:49:05,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:49:05,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:49:05,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:49:05,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:49:05,914 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:49:05,914 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [274582176] [2021-10-21 19:49:05,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [274582176] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:49:05,915 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:49:05,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-21 19:49:05,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241129215] [2021-10-21 19:49:05,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 19:49:05,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:49:05,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:49:05,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:49:05,917 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-21 19:49:05,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:49:05,972 INFO L93 Difference]: Finished difference Result 64 states and 66 transitions. [2021-10-21 19:49:05,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:49:05,973 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 32 [2021-10-21 19:49:05,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:49:05,975 INFO L225 Difference]: With dead ends: 64 [2021-10-21 19:49:05,975 INFO L226 Difference]: Without dead ends: 60 [2021-10-21 19:49:05,975 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 40.7ms TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:49:05,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-10-21 19:49:05,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2021-10-21 19:49:05,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 42 states have internal predecessors, (43), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-10-21 19:49:05,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 62 transitions. [2021-10-21 19:49:05,982 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 62 transitions. Word has length 32 [2021-10-21 19:49:05,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:49:05,982 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 62 transitions. [2021-10-21 19:49:05,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-21 19:49:05,983 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions. [2021-10-21 19:49:05,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-21 19:49:05,984 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:49:05,985 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:49:06,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:49:06,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:49:06,199 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_kref_initErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:49:06,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:49:06,200 INFO L82 PathProgramCache]: Analyzing trace with hash -792080061, now seen corresponding path program 1 times [2021-10-21 19:49:06,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:49:06,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [111476580] [2021-10-21 19:49:06,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:49:06,204 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:49:06,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:49:06,205 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:49:06,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-21 19:49:06,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:49:06,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 19:49:06,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:49:06,575 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:49:06,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:49:06,823 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:49:06,823 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:49:06,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [111476580] [2021-10-21 19:49:06,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [111476580] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-21 19:49:06,823 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:49:06,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-10-21 19:49:06,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984968650] [2021-10-21 19:49:06,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-21 19:49:06,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:49:06,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 19:49:06,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:49:06,826 INFO L87 Difference]: Start difference. First operand 60 states and 62 transitions. Second operand has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-21 19:49:07,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:49:07,062 INFO L93 Difference]: Finished difference Result 68 states and 72 transitions. [2021-10-21 19:49:07,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-21 19:49:07,069 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 34 [2021-10-21 19:49:07,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:49:07,070 INFO L225 Difference]: With dead ends: 68 [2021-10-21 19:49:07,070 INFO L226 Difference]: Without dead ends: 64 [2021-10-21 19:49:07,071 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 226.8ms TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2021-10-21 19:49:07,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-10-21 19:49:07,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2021-10-21 19:49:07,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 38 states have (on average 1.236842105263158) internal successors, (47), 46 states have internal predecessors, (47), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-10-21 19:49:07,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 66 transitions. [2021-10-21 19:49:07,085 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 66 transitions. Word has length 34 [2021-10-21 19:49:07,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:49:07,086 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 66 transitions. [2021-10-21 19:49:07,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-21 19:49:07,086 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 66 transitions. [2021-10-21 19:49:07,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-21 19:49:07,088 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:49:07,088 INFO L512 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:49:07,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:49:07,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:49:07,292 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_kref_initErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:49:07,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:49:07,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1102366333, now seen corresponding path program 2 times [2021-10-21 19:49:07,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:49:07,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [344945459] [2021-10-21 19:49:07,293 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:49:07,293 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:49:07,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:49:07,294 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:49:07,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-21 19:49:07,566 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-21 19:49:07,566 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:49:07,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-21 19:49:07,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:49:07,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-21 19:49:07,943 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-21 19:49:07,944 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:49:08,240 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-21 19:49:08,241 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:49:08,241 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [344945459] [2021-10-21 19:49:08,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [344945459] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:49:08,241 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:49:08,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2021-10-21 19:49:08,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128357199] [2021-10-21 19:49:08,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-21 19:49:08,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:49:08,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-21 19:49:08,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-10-21 19:49:08,244 INFO L87 Difference]: Start difference. First operand 64 states and 66 transitions. Second operand has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-21 19:49:08,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:49:08,908 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2021-10-21 19:49:08,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-21 19:49:08,910 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 38 [2021-10-21 19:49:08,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:49:08,911 INFO L225 Difference]: With dead ends: 63 [2021-10-21 19:49:08,911 INFO L226 Difference]: Without dead ends: 63 [2021-10-21 19:49:08,912 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 55 SyntacticMatches, 10 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 290.5ms TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-10-21 19:49:08,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-10-21 19:49:08,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-10-21 19:49:08,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 38 states have (on average 1.2105263157894737) internal successors, (46), 45 states have internal predecessors, (46), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-10-21 19:49:08,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 65 transitions. [2021-10-21 19:49:08,917 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 65 transitions. Word has length 38 [2021-10-21 19:49:08,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:49:08,918 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 65 transitions. [2021-10-21 19:49:08,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-21 19:49:08,918 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 65 transitions. [2021-10-21 19:49:08,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-21 19:49:08,930 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:49:08,930 INFO L512 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:49:08,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-21 19:49:09,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:49:09,145 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_kref_initErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:49:09,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:49:09,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1102366332, now seen corresponding path program 1 times [2021-10-21 19:49:09,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:49:09,146 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1432257400] [2021-10-21 19:49:09,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:49:09,147 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:49:09,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:49:09,148 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:49:09,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-21 19:49:09,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:49:09,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-21 19:49:09,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:49:09,679 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:49:09,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:49:10,259 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:49:10,259 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:49:10,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1432257400] [2021-10-21 19:49:10,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1432257400] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-21 19:49:10,260 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:49:10,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-10-21 19:49:10,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222346901] [2021-10-21 19:49:10,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-21 19:49:10,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:49:10,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-21 19:49:10,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2021-10-21 19:49:10,264 INFO L87 Difference]: Start difference. First operand 63 states and 65 transitions. Second operand has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-21 19:49:11,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:49:11,148 INFO L93 Difference]: Finished difference Result 75 states and 83 transitions. [2021-10-21 19:49:11,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-21 19:49:11,153 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 38 [2021-10-21 19:49:11,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:49:11,154 INFO L225 Difference]: With dead ends: 75 [2021-10-21 19:49:11,154 INFO L226 Difference]: Without dead ends: 71 [2021-10-21 19:49:11,155 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 993.0ms TimeCoverageRelationStatistics Valid=223, Invalid=377, Unknown=0, NotChecked=0, Total=600 [2021-10-21 19:49:11,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-10-21 19:49:11,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-10-21 19:49:11,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 46 states have (on average 1.173913043478261) internal successors, (54), 53 states have internal predecessors, (54), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-10-21 19:49:11,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 73 transitions. [2021-10-21 19:49:11,161 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 73 transitions. Word has length 38 [2021-10-21 19:49:11,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:49:11,162 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 73 transitions. [2021-10-21 19:49:11,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-21 19:49:11,163 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 73 transitions. [2021-10-21 19:49:11,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-10-21 19:49:11,164 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:49:11,164 INFO L512 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:49:11,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-21 19:49:11,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:49:11,371 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_kref_initErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:49:11,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:49:11,372 INFO L82 PathProgramCache]: Analyzing trace with hash 2064886276, now seen corresponding path program 2 times [2021-10-21 19:49:11,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:49:11,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [543647916] [2021-10-21 19:49:11,373 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:49:11,373 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:49:11,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:49:11,374 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:49:11,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-21 19:49:11,685 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-21 19:49:11,685 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:49:11,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-21 19:49:11,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:49:11,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-21 19:49:12,344 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-10-21 19:49:12,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:49:13,737 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-10-21 19:49:13,737 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:49:13,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [543647916] [2021-10-21 19:49:13,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [543647916] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:49:13,738 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:49:13,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2021-10-21 19:49:13,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862817027] [2021-10-21 19:49:13,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-21 19:49:13,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:49:13,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-21 19:49:13,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-10-21 19:49:13,740 INFO L87 Difference]: Start difference. First operand 71 states and 73 transitions. Second operand has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (13), 8 states have call predecessors, (13), 4 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-21 19:49:15,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:49:15,127 INFO L93 Difference]: Finished difference Result 70 states and 72 transitions. [2021-10-21 19:49:15,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-21 19:49:15,127 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (13), 8 states have call predecessors, (13), 4 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 46 [2021-10-21 19:49:15,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:49:15,129 INFO L225 Difference]: With dead ends: 70 [2021-10-21 19:49:15,129 INFO L226 Difference]: Without dead ends: 70 [2021-10-21 19:49:15,130 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1308.0ms TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2021-10-21 19:49:15,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-10-21 19:49:15,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2021-10-21 19:49:15,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 46 states have (on average 1.1521739130434783) internal successors, (53), 52 states have internal predecessors, (53), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-10-21 19:49:15,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 72 transitions. [2021-10-21 19:49:15,135 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 72 transitions. Word has length 46 [2021-10-21 19:49:15,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:49:15,136 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 72 transitions. [2021-10-21 19:49:15,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (13), 8 states have call predecessors, (13), 4 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-21 19:49:15,137 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 72 transitions. [2021-10-21 19:49:15,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-21 19:49:15,138 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:49:15,139 INFO L512 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:49:15,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-21 19:49:15,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:49:15,347 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:49:15,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:49:15,348 INFO L82 PathProgramCache]: Analyzing trace with hash -1743926468, now seen corresponding path program 1 times [2021-10-21 19:49:15,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:49:15,348 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1986529935] [2021-10-21 19:49:15,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:49:15,349 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:49:15,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:49:15,349 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:49:15,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-21 19:49:15,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:49:15,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-21 19:49:15,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:49:16,085 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:49:16,085 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:49:17,389 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:49:17,389 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:49:17,389 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1986529935] [2021-10-21 19:49:17,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1986529935] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-21 19:49:17,390 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:49:17,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2021-10-21 19:49:17,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222671789] [2021-10-21 19:49:17,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-10-21 19:49:17,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:49:17,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-10-21 19:49:17,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=892, Unknown=0, NotChecked=0, Total=1122 [2021-10-21 19:49:17,393 INFO L87 Difference]: Start difference. First operand 70 states and 72 transitions. Second operand has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-21 19:49:18,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:49:18,155 INFO L93 Difference]: Finished difference Result 76 states and 78 transitions. [2021-10-21 19:49:18,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-21 19:49:18,156 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 51 [2021-10-21 19:49:18,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:49:18,158 INFO L225 Difference]: With dead ends: 76 [2021-10-21 19:49:18,158 INFO L226 Difference]: Without dead ends: 72 [2021-10-21 19:49:18,159 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1011.1ms TimeCoverageRelationStatistics Valid=250, Invalid=940, Unknown=0, NotChecked=0, Total=1190 [2021-10-21 19:49:18,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-10-21 19:49:18,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2021-10-21 19:49:18,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 48 states have (on average 1.1458333333333333) internal successors, (55), 54 states have internal predecessors, (55), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-10-21 19:49:18,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 74 transitions. [2021-10-21 19:49:18,170 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 74 transitions. Word has length 51 [2021-10-21 19:49:18,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:49:18,171 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 74 transitions. [2021-10-21 19:49:18,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-21 19:49:18,171 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 74 transitions. [2021-10-21 19:49:18,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-21 19:49:18,177 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:49:18,178 INFO L512 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:49:18,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-21 19:49:18,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:49:18,379 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:49:18,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:49:18,380 INFO L82 PathProgramCache]: Analyzing trace with hash 845780764, now seen corresponding path program 2 times [2021-10-21 19:49:18,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:49:18,381 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2138932512] [2021-10-21 19:49:18,381 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:49:18,381 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:49:18,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:49:18,382 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:49:18,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-21 19:49:18,784 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-21 19:49:18,784 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:49:18,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-21 19:49:18,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:49:18,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-21 19:49:19,247 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-21 19:49:19,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:49:19,476 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-21 19:49:19,476 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:49:19,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2138932512] [2021-10-21 19:49:19,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2138932512] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:49:19,476 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:49:19,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2021-10-21 19:49:19,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144302397] [2021-10-21 19:49:19,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-21 19:49:19,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:49:19,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-21 19:49:19,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-10-21 19:49:19,478 INFO L87 Difference]: Start difference. First operand 72 states and 74 transitions. Second operand has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 8 states have internal predecessors, (32), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2021-10-21 19:49:19,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:49:19,996 INFO L93 Difference]: Finished difference Result 70 states and 72 transitions. [2021-10-21 19:49:19,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-21 19:49:19,997 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 8 states have internal predecessors, (32), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 53 [2021-10-21 19:49:19,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:49:19,998 INFO L225 Difference]: With dead ends: 70 [2021-10-21 19:49:19,998 INFO L226 Difference]: Without dead ends: 70 [2021-10-21 19:49:19,998 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 84 SyntacticMatches, 11 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 259.0ms TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-10-21 19:49:19,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-10-21 19:49:20,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2021-10-21 19:49:20,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 48 states have (on average 1.1041666666666667) internal successors, (53), 52 states have internal predecessors, (53), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-10-21 19:49:20,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 72 transitions. [2021-10-21 19:49:20,003 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 72 transitions. Word has length 53 [2021-10-21 19:49:20,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:49:20,003 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 72 transitions. [2021-10-21 19:49:20,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 8 states have internal predecessors, (32), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2021-10-21 19:49:20,004 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 72 transitions. [2021-10-21 19:49:20,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-21 19:49:20,005 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:49:20,006 INFO L512 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:49:20,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-21 19:49:20,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:49:20,222 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:49:20,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:49:20,222 INFO L82 PathProgramCache]: Analyzing trace with hash 845780765, now seen corresponding path program 1 times [2021-10-21 19:49:20,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:49:20,223 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [725345346] [2021-10-21 19:49:20,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:49:20,224 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:49:20,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:49:20,225 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:49:20,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-21 19:49:20,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:49:20,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-21 19:49:20,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:49:20,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-21 19:49:21,302 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-21 19:49:21,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:49:22,609 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-21 19:49:22,609 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:49:22,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [725345346] [2021-10-21 19:49:22,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [725345346] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:49:22,609 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:49:22,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2021-10-21 19:49:22,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589155327] [2021-10-21 19:49:22,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-21 19:49:22,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:49:22,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-21 19:49:22,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-10-21 19:49:22,612 INFO L87 Difference]: Start difference. First operand 70 states and 72 transitions. Second operand has 23 states, 22 states have (on average 2.0) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (15), 8 states have call predecessors, (15), 4 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2021-10-21 19:49:23,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:49:23,990 INFO L93 Difference]: Finished difference Result 68 states and 70 transitions. [2021-10-21 19:49:23,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-21 19:49:23,991 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.0) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (15), 8 states have call predecessors, (15), 4 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) Word has length 53 [2021-10-21 19:49:23,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:49:23,992 INFO L225 Difference]: With dead ends: 68 [2021-10-21 19:49:23,992 INFO L226 Difference]: Without dead ends: 68 [2021-10-21 19:49:23,992 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 81 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1233.7ms TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2021-10-21 19:49:23,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-10-21 19:49:23,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-10-21 19:49:23,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 48 states have (on average 1.0625) internal successors, (51), 50 states have internal predecessors, (51), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-10-21 19:49:23,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 70 transitions. [2021-10-21 19:49:23,996 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 70 transitions. Word has length 53 [2021-10-21 19:49:23,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:49:23,997 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 70 transitions. [2021-10-21 19:49:23,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.0) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (15), 8 states have call predecessors, (15), 4 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2021-10-21 19:49:23,997 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 70 transitions. [2021-10-21 19:49:23,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-21 19:49:23,999 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:49:23,999 INFO L512 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:49:24,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-10-21 19:49:24,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:49:24,207 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:49:24,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:49:24,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1516815243, now seen corresponding path program 1 times [2021-10-21 19:49:24,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:49:24,208 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1282011559] [2021-10-21 19:49:24,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:49:24,208 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:49:24,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:49:24,209 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:49:24,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-21 19:49:24,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:49:24,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:49:24,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:49:24,811 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-21 19:49:24,811 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:49:25,106 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-21 19:49:25,106 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:49:25,106 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1282011559] [2021-10-21 19:49:25,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1282011559] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:49:25,107 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:49:25,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2021-10-21 19:49:25,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261541330] [2021-10-21 19:49:25,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 19:49:25,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:49:25,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:49:25,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:49:25,109 INFO L87 Difference]: Start difference. First operand 68 states and 70 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-21 19:49:25,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:49:25,154 INFO L93 Difference]: Finished difference Result 70 states and 71 transitions. [2021-10-21 19:49:25,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 19:49:25,154 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 51 [2021-10-21 19:49:25,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:49:25,155 INFO L225 Difference]: With dead ends: 70 [2021-10-21 19:49:25,155 INFO L226 Difference]: Without dead ends: 68 [2021-10-21 19:49:25,155 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 47.5ms TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:49:25,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-10-21 19:49:25,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-10-21 19:49:25,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 48 states have (on average 1.0416666666666667) internal successors, (50), 49 states have internal predecessors, (50), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-10-21 19:49:25,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2021-10-21 19:49:25,160 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 51 [2021-10-21 19:49:25,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:49:25,160 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2021-10-21 19:49:25,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2021-10-21 19:49:25,161 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2021-10-21 19:49:25,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-10-21 19:49:25,161 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:49:25,162 INFO L512 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:49:25,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-21 19:49:25,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:49:25,375 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:49:25,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:49:25,375 INFO L82 PathProgramCache]: Analyzing trace with hash 240473020, now seen corresponding path program 1 times [2021-10-21 19:49:25,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:49:25,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1837248718] [2021-10-21 19:49:25,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:49:25,376 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:49:25,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:49:25,377 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:49:25,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-21 19:49:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:49:25,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 19:49:25,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:49:26,089 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-21 19:49:26,089 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:49:26,490 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-10-21 19:49:26,490 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:49:26,490 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1837248718] [2021-10-21 19:49:26,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1837248718] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:49:26,490 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:49:26,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 11 [2021-10-21 19:49:26,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361030381] [2021-10-21 19:49:26,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-21 19:49:26,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:49:26,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-21 19:49:26,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-10-21 19:49:26,494 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 10 states have internal predecessors, (30), 4 states have call successors, (9), 1 states have call predecessors, (9), 5 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2021-10-21 19:49:26,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:49:26,608 INFO L93 Difference]: Finished difference Result 72 states and 72 transitions. [2021-10-21 19:49:26,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 19:49:26,609 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 10 states have internal predecessors, (30), 4 states have call successors, (9), 1 states have call predecessors, (9), 5 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 56 [2021-10-21 19:49:26,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:49:26,610 INFO L225 Difference]: With dead ends: 72 [2021-10-21 19:49:26,610 INFO L226 Difference]: Without dead ends: 68 [2021-10-21 19:49:26,610 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 97.4ms TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-10-21 19:49:26,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-10-21 19:49:26,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-10-21 19:49:26,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 48 states have (on average 1.0208333333333333) internal successors, (49), 48 states have internal predecessors, (49), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-10-21 19:49:26,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 68 transitions. [2021-10-21 19:49:26,614 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 68 transitions. Word has length 56 [2021-10-21 19:49:26,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:49:26,614 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 68 transitions. [2021-10-21 19:49:26,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 10 states have internal predecessors, (30), 4 states have call successors, (9), 1 states have call predecessors, (9), 5 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2021-10-21 19:49:26,615 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 68 transitions. [2021-10-21 19:49:26,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-10-21 19:49:26,616 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:49:26,616 INFO L512 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:49:26,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-21 19:49:26,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:49:26,825 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-21 19:49:26,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:49:26,826 INFO L82 PathProgramCache]: Analyzing trace with hash 214334517, now seen corresponding path program 1 times [2021-10-21 19:49:26,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:49:26,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1647182361] [2021-10-21 19:49:26,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:49:26,827 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:49:26,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:49:26,827 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:49:26,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-21 19:49:27,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:49:27,385 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:49:27,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:49:27,627 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-21 19:49:27,627 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-21 19:49:27,628 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-21 19:49:27,630 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-21 19:49:27,631 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-21 19:49:27,631 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-21 19:49:27,631 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-21 19:49:27,631 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-21 19:49:27,631 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-21 19:49:27,632 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-21 19:49:27,632 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-21 19:49:27,632 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-21 19:49:27,632 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-21 19:49:27,633 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-21 19:49:27,633 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-21 19:49:27,633 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-21 19:49:27,633 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-21 19:49:27,633 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-21 19:49:27,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-21 19:49:27,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-21 19:49:27,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-21 19:49:27,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-21 19:49:27,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-21 19:49:27,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-21 19:49:27,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-21 19:49:27,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-21 19:49:27,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-21 19:49:27,636 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-21 19:49:27,636 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-21 19:49:27,636 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-21 19:49:27,636 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-21 19:49:27,636 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-21 19:49:27,637 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-21 19:49:27,637 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-21 19:49:27,637 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-21 19:49:27,637 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-21 19:49:27,638 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-21 19:49:27,638 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-21 19:49:27,638 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-21 19:49:27,638 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-21 19:49:27,638 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-21 19:49:27,639 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-21 19:49:27,639 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-21 19:49:27,639 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-21 19:49:27,639 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-21 19:49:27,640 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:49:27,640 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:49:27,640 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:49:27,640 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:49:27,641 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:49:27,641 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:49:27,641 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-21 19:49:27,641 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-21 19:49:27,642 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-21 19:49:27,642 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-21 19:49:27,642 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-21 19:49:27,642 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-21 19:49:27,642 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-21 19:49:27,643 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-21 19:49:27,643 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:49:27,643 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:49:27,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:49:27,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:49:27,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:49:27,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-21 19:49:27,645 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-21 19:49:27,645 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-21 19:49:27,645 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-21 19:49:27,645 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-21 19:49:27,645 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-21 19:49:27,646 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-21 19:49:27,646 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-21 19:49:27,646 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-21 19:49:27,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-10-21 19:49:27,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:49:27,876 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:49:27,891 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-10-21 19:49:27,897 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-21 19:49:27,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:49:27 BoogieIcfgContainer [2021-10-21 19:49:27,926 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:49:27,927 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:49:27,927 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:49:27,927 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:49:27,927 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:48:59" (3/4) ... [2021-10-21 19:49:27,931 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:49:27,931 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:49:27,933 INFO L168 Benchmark]: Toolchain (without parser) took 31023.70 ms. Allocated memory was 56.6 MB in the beginning and 98.6 MB in the end (delta: 41.9 MB). Free memory was 32.7 MB in the beginning and 46.5 MB in the end (delta: -13.8 MB). Peak memory consumption was 30.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:49:27,933 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 56.6 MB. Free memory is still 37.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:49:27,934 INFO L168 Benchmark]: CACSL2BoogieTranslator took 969.49 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 32.5 MB in the beginning and 49.3 MB in the end (delta: -16.8 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:49:27,935 INFO L168 Benchmark]: Boogie Preprocessor took 115.35 ms. Allocated memory is still 73.4 MB. Free memory was 49.3 MB in the beginning and 44.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:49:27,935 INFO L168 Benchmark]: RCFGBuilder took 1825.49 ms. Allocated memory is still 73.4 MB. Free memory was 44.7 MB in the beginning and 36.5 MB in the end (delta: 8.2 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. [2021-10-21 19:49:27,936 INFO L168 Benchmark]: TraceAbstraction took 28102.19 ms. Allocated memory was 73.4 MB in the beginning and 98.6 MB in the end (delta: 25.2 MB). Free memory was 36.1 MB in the beginning and 46.5 MB in the end (delta: -10.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-21 19:49:27,936 INFO L168 Benchmark]: Witness Printer took 4.86 ms. Allocated memory is still 98.6 MB. Free memory is still 46.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:49:27,938 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 56.6 MB. Free memory is still 37.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 969.49 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 32.5 MB in the beginning and 49.3 MB in the end (delta: -16.8 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 115.35 ms. Allocated memory is still 73.4 MB. Free memory was 49.3 MB in the beginning and 44.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1825.49 ms. Allocated memory is still 73.4 MB. Free memory was 44.7 MB in the beginning and 36.5 MB in the end (delta: 8.2 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 28102.19 ms. Allocated memory was 73.4 MB in the beginning and 98.6 MB in the end (delta: 25.2 MB). Free memory was 36.1 MB in the beginning and 46.5 MB in the end (delta: -10.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Witness Printer took 4.86 ms. Allocated memory is still 98.6 MB. Free memory is still 46.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 761]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 761. 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}] [L762] CALL entry_point() VAL [ldv_global_msg_list={-2147483648:0}] [L758] struct ldv_kobject *kobj; VAL [ldv_global_msg_list={-2147483648:0}] [L759] CALL, EXPR ldv_kobject_create() VAL [ldv_global_msg_list={-2147483648:0}] [L740] struct ldv_kobject *kobj; VAL [ldv_global_msg_list={-2147483648:0}] [L741] CALL, EXPR ldv_malloc(sizeof(*kobj)) VAL [\old(size)=16, ldv_global_msg_list={-2147483648:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L741] RET, EXPR ldv_malloc(sizeof(*kobj)) VAL [ldv_global_msg_list={-2147483648:0}, ldv_malloc(sizeof(*kobj))={1:0}] [L741] kobj = ldv_malloc(sizeof(*kobj)) [L742] COND FALSE !(!kobj) VAL [kobj={1:0}, ldv_global_msg_list={-2147483648:0}] [L744] FCALL memset(kobj, 0, sizeof(*kobj)) VAL [kobj={1:0}, ldv_global_msg_list={-2147483648:0}, memset(kobj, 0, sizeof(*kobj))={1:0}] [L745] CALL ldv_kobject_init(kobj) VAL [kobj={1:0}, ldv_global_msg_list={-2147483648:0}] [L730] COND FALSE !(!kobj) VAL [kobj={1:0}, kobj={1:0}, ldv_global_msg_list={-2147483648:0}] [L733] CALL ldv_kobject_init_internal(kobj) VAL [kobj={1:0}, ldv_global_msg_list={-2147483648:0}] [L723] COND FALSE !(!kobj) VAL [kobj={1:0}, kobj={1:0}, ldv_global_msg_list={-2147483648:0}] [L725] CALL ldv_kref_init(&kobj->kref) VAL [kref={1:12}, ldv_global_msg_list={-2147483648:0}] [L682] ((&kref->refcount)->counter) = (1) VAL [kref={1:12}, kref={1:12}, ldv_global_msg_list={-2147483648:0}] [L725] RET ldv_kref_init(&kobj->kref) VAL [kobj={1:0}, kobj={1:0}, ldv_global_msg_list={-2147483648:0}] [L726] CALL LDV_INIT_LIST_HEAD(&kobj->entry) VAL [ldv_global_msg_list={-2147483648:0}, list={1:4}] [L540] list->next = list VAL [ldv_global_msg_list={-2147483648:0}, list={1:4}, list={1:4}] [L541] list->prev = list VAL [ldv_global_msg_list={-2147483648:0}, list={1:4}, list={1:4}] [L726] RET LDV_INIT_LIST_HEAD(&kobj->entry) VAL [kobj={1:0}, kobj={1:0}, ldv_global_msg_list={-2147483648:0}] [L733] RET ldv_kobject_init_internal(kobj) VAL [kobj={1:0}, kobj={1:0}, ldv_global_msg_list={-2147483648:0}] [L745] RET ldv_kobject_init(kobj) VAL [kobj={1:0}, ldv_global_msg_list={-2147483648:0}] [L746] return kobj; VAL [\result={1:0}, kobj={1:0}, ldv_global_msg_list={-2147483648:0}] [L759] RET, EXPR ldv_kobject_create() VAL [ldv_global_msg_list={-2147483648:0}, ldv_kobject_create()={1:0}] [L759] kobj = ldv_kobject_create() [L762] 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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 330 locations, 71 error locations. Started 1 CEGAR loops. OverallTime: 27931.6ms, OverallIterations: 16, TraceHistogramMax: 16, EmptinessCheckTime: 58.2ms, AutomataDifference: 7179.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 15.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 760 SDtfs, 374 SDslu, 4036 SDs, 0 SdLazy, 2295 SolverSat, 162 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4761.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1109 GetRequests, 896 SyntacticMatches, 28 SemanticMatches, 185 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 5883.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=0, InterpolantAutomatonStates: 144, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 144.6ms AutomataMinimizationTime, 15 MinimizatonAttempts, 15 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 252.3ms SsaConstructionTime, 1001.2ms SatisfiabilityAnalysisTime, 11524.0ms InterpolantComputationTime, 614 NumberOfCodeBlocks, 578 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1064 ConstructedInterpolants, 80 QuantifiedInterpolants, 3835 SizeOfPredicates, 28 NumberOfNonLiveVariables, 2264 ConjunctsInSsa, 146 ConjunctsInUnsatCore, 30 InterpolantComputations, 24 PerfectInterpolantSequences, 1340/1598 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-21 19:49:28,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad926261-5cd0-4e3e-b2fe-e1907aad1b62/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...