./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test19-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test19-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg --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 1df2ca055a97db0a00e0c4b03f212c5ac3c2765d37b628ab5708f179a281754f ................................................................................................................................... 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_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test19-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg --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 1df2ca055a97db0a00e0c4b03f212c5ac3c2765d37b628ab5708f179a281754f .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:48:49,121 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:48:49,124 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:48:49,180 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:48:49,181 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:48:49,187 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:48:49,189 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:48:49,194 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:48:49,197 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:48:49,204 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:48:49,205 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:48:49,207 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:48:49,208 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:48:49,211 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:48:49,213 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:48:49,218 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:48:49,220 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:48:49,221 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:48:49,224 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:48:49,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:48:49,236 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:48:49,237 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:48:49,241 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:48:49,242 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:48:49,247 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:48:49,248 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:48:49,248 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:48:49,250 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:48:49,251 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:48:49,253 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:48:49,254 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:48:49,255 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:48:49,257 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:48:49,259 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:48:49,260 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:48:49,261 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:48:49,262 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:48:49,262 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:48:49,262 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:48:49,263 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:48:49,265 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:48:49,266 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 09:48:49,321 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:48:49,321 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:48:49,322 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:48:49,322 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:48:49,330 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:48:49,331 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:48:49,331 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:48:49,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:48:49,332 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:48:49,332 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:48:49,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:48:49,334 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:48:49,334 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:48:49,334 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 09:48:49,334 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 09:48:49,335 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 09:48:49,335 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:48:49,335 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 09:48:49,335 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:48:49,336 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:48:49,336 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:48:49,336 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:48:49,337 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:48:49,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:48:49,337 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:48:49,337 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:48:49,338 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:48:49,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:48:49,338 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:48:49,339 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_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1df2ca055a97db0a00e0c4b03f212c5ac3c2765d37b628ab5708f179a281754f [2021-10-28 09:48:49,644 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:48:49,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:48:49,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:48:49,683 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:48:49,684 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:48:49,685 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/ldv-memsafety/memleaks_test19-2.i [2021-10-28 09:48:49,754 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/data/b76c0a272/340527f56451453490101f3b36ae43e5/FLAG09318b59a [2021-10-28 09:48:50,469 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:48:50,470 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/sv-benchmarks/c/ldv-memsafety/memleaks_test19-2.i [2021-10-28 09:48:50,508 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/data/b76c0a272/340527f56451453490101f3b36ae43e5/FLAG09318b59a [2021-10-28 09:48:50,717 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/data/b76c0a272/340527f56451453490101f3b36ae43e5 [2021-10-28 09:48:50,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:48:50,724 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 09:48:50,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:48:50,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:48:50,748 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:48:50,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:48:50" (1/1) ... [2021-10-28 09:48:50,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d312ec0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:50, skipping insertion in model container [2021-10-28 09:48:50,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:48:50" (1/1) ... [2021-10-28 09:48:50,758 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:48:50,840 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:48:51,334 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:48:51,349 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-28 09:48:51,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@56fee026 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:51, skipping insertion in model container [2021-10-28 09:48:51,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:48:51,351 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-28 09:48:51,353 INFO L168 Benchmark]: Toolchain (without parser) took 627.43 ms. Allocated memory is still 125.8 MB. Free memory was 94.7 MB in the beginning and 93.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:48:51,353 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 125.8 MB. Free memory was 80.9 MB in the beginning and 80.9 MB in the end (delta: 53.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:48:51,354 INFO L168 Benchmark]: CACSL2BoogieTranslator took 606.71 ms. Allocated memory is still 125.8 MB. Free memory was 94.5 MB in the beginning and 93.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:48:51,356 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 125.8 MB. Free memory was 80.9 MB in the beginning and 80.9 MB in the end (delta: 53.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 606.71 ms. Allocated memory is still 125.8 MB. Free memory was 94.5 MB in the beginning and 93.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:48:53,420 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:48:53,422 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:48:53,466 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:48:53,467 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:48:53,473 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:48:53,479 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:48:53,486 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:48:53,490 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:48:53,494 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:48:53,498 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:48:53,500 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:48:53,501 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:48:53,504 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:48:53,506 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:48:53,508 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:48:53,511 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:48:53,512 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:48:53,514 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:48:53,516 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:48:53,517 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:48:53,522 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:48:53,524 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:48:53,525 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:48:53,528 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:48:53,528 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:48:53,529 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:48:53,530 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:48:53,530 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:48:53,531 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:48:53,532 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:48:53,532 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:48:53,533 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:48:53,534 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:48:53,543 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:48:53,543 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:48:53,544 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:48:53,545 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:48:53,545 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:48:53,546 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:48:53,547 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:48:53,551 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 09:48:53,600 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:48:53,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:48:53,601 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:48:53,601 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:48:53,603 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:48:53,603 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:48:53,603 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:48:53,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:48:53,603 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:48:53,604 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:48:53,605 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:48:53,605 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:48:53,605 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:48:53,605 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 09:48:53,606 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 09:48:53,606 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 09:48:53,606 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:48:53,606 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 09:48:53,606 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 09:48:53,607 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 09:48:53,607 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:48:53,607 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:48:53,607 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:48:53,607 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:48:53,608 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:48:53,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:48:53,608 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:48:53,609 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:48:53,609 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 09:48:53,609 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 09:48:53,609 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:48:53,609 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 09:48:53,610 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_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1df2ca055a97db0a00e0c4b03f212c5ac3c2765d37b628ab5708f179a281754f [2021-10-28 09:48:53,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:48:53,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:48:53,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:48:53,988 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:48:53,989 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:48:53,990 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/ldv-memsafety/memleaks_test19-2.i [2021-10-28 09:48:54,064 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/data/9fb24dd9a/fbf6811b17064c17b1e026fcec17fd5d/FLAG577991bba [2021-10-28 09:48:54,687 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:48:54,688 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/sv-benchmarks/c/ldv-memsafety/memleaks_test19-2.i [2021-10-28 09:48:54,707 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/data/9fb24dd9a/fbf6811b17064c17b1e026fcec17fd5d/FLAG577991bba [2021-10-28 09:48:54,978 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/data/9fb24dd9a/fbf6811b17064c17b1e026fcec17fd5d [2021-10-28 09:48:54,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:48:54,987 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 09:48:54,988 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:48:54,988 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:48:54,994 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:48:54,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:48:54" (1/1) ... [2021-10-28 09:48:54,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f06943 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:54, skipping insertion in model container [2021-10-28 09:48:54,997 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:48:54" (1/1) ... [2021-10-28 09:48:55,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:48:55,070 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:48:55,555 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:48:55,580 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-28 09:48:55,594 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:48:55,664 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:48:55,672 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:48:55,720 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:48:55,768 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:48:55,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:55 WrapperNode [2021-10-28 09:48:55,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:48:55,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:48:55,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:48:55,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:48:55,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:55" (1/1) ... [2021-10-28 09:48:55,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:55" (1/1) ... [2021-10-28 09:48:55,818 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:55" (1/1) ... [2021-10-28 09:48:55,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:55" (1/1) ... [2021-10-28 09:48:55,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:55" (1/1) ... [2021-10-28 09:48:55,882 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:55" (1/1) ... [2021-10-28 09:48:55,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:55" (1/1) ... [2021-10-28 09:48:55,900 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:48:55,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:48:55,901 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:48:55,901 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:48:55,902 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:55" (1/1) ... [2021-10-28 09:48:55,912 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:48:55,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:55,948 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:55,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:48:55,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 09:48:55,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:48:55,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 09:48:55,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 09:48:55,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 09:48:55,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 09:48:55,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 09:48:55,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 09:48:55,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 09:48:55,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-28 09:48:55,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-28 09:48:55,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-28 09:48:55,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-28 09:48:55,997 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-28 09:48:55,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-28 09:48:55,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-28 09:48:55,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-28 09:48:55,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-28 09:48:55,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-28 09:48:55,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-28 09:48:55,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-28 09:48:55,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-28 09:48:55,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-28 09:48:55,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-28 09:48:55,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-28 09:48:55,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-28 09:48:55,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-28 09:48:55,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-28 09:48:55,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-28 09:48:56,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-28 09:48:56,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-28 09:48:56,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-28 09:48:56,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-28 09:48:56,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-28 09:48:56,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-28 09:48:56,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-28 09:48:56,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-28 09:48:56,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-28 09:48:56,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-28 09:48:56,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-28 09:48:56,001 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-28 09:48:56,001 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-28 09:48:56,002 INFO L138 BoogieDeclarations]: Found implementation of procedure f19 [2021-10-28 09:48:56,002 INFO L138 BoogieDeclarations]: Found implementation of procedure f19_undo [2021-10-28 09:48:56,002 INFO L138 BoogieDeclarations]: Found implementation of procedure g19 [2021-10-28 09:48:56,002 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_unsafe_19 [2021-10-28 09:48:56,002 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_19 [2021-10-28 09:48:56,003 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-28 09:48:56,003 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 09:48:56,003 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-28 09:48:56,003 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-28 09:48:56,003 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-28 09:48:56,003 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 09:48:56,004 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 09:48:56,004 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 09:48:56,004 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 09:48:56,004 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 09:48:56,004 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 09:48:56,004 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 09:48:56,005 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 09:48:56,005 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 09:48:56,005 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 09:48:56,005 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 09:48:56,005 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 09:48:56,005 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 09:48:56,006 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 09:48:56,006 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 09:48:56,006 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 09:48:56,006 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 09:48:56,006 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 09:48:56,006 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 09:48:56,007 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 09:48:56,007 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 09:48:56,007 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 09:48:56,007 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 09:48:56,007 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 09:48:56,007 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 09:48:56,007 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 09:48:56,008 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 09:48:56,008 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 09:48:56,008 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 09:48:56,008 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 09:48:56,008 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 09:48:56,008 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 09:48:56,009 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 09:48:56,009 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 09:48:56,009 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 09:48:56,009 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 09:48:56,009 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 09:48:56,009 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 09:48:56,009 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 09:48:56,010 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 09:48:56,010 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 09:48:56,010 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 09:48:56,010 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 09:48:56,010 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 09:48:56,010 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 09:48:56,011 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 09:48:56,011 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 09:48:56,011 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 09:48:56,011 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 09:48:56,011 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 09:48:56,011 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 09:48:56,011 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 09:48:56,012 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 09:48:56,012 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 09:48:56,012 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 09:48:56,012 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 09:48:56,012 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 09:48:56,012 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 09:48:56,013 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 09:48:56,013 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 09:48:56,013 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 09:48:56,013 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 09:48:56,013 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 09:48:56,013 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 09:48:56,014 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 09:48:56,014 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 09:48:56,014 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 09:48:56,014 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 09:48:56,014 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 09:48:56,014 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 09:48:56,015 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 09:48:56,015 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 09:48:56,015 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 09:48:56,015 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 09:48:56,015 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 09:48:56,015 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 09:48:56,016 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 09:48:56,016 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 09:48:56,016 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 09:48:56,016 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 09:48:56,016 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 09:48:56,016 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 09:48:56,017 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 09:48:56,017 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 09:48:56,017 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 09:48:56,017 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 09:48:56,017 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 09:48:56,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 09:48:56,018 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 09:48:56,018 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 09:48:56,018 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 09:48:56,018 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 09:48:56,018 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 09:48:56,018 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 09:48:56,018 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 09:48:56,019 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 09:48:56,019 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 09:48:56,019 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 09:48:56,019 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 09:48:56,019 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 09:48:56,019 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 09:48:56,019 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 09:48:56,020 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 09:48:56,020 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 09:48:56,020 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 09:48:56,020 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 09:48:56,020 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 09:48:56,020 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-28 09:48:56,021 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 09:48:56,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-28 09:48:56,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-28 09:48:56,021 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-28 09:48:56,021 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-28 09:48:56,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-28 09:48:56,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 09:48:56,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-28 09:48:56,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-28 09:48:56,022 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-28 09:48:56,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 09:48:56,022 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-28 09:48:56,022 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-28 09:48:56,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-28 09:48:56,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 09:48:56,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-28 09:48:56,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-28 09:48:56,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-28 09:48:56,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-28 09:48:56,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-28 09:48:56,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-28 09:48:56,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:48:56,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-28 09:48:56,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-28 09:48:56,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-28 09:48:56,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-28 09:48:56,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-28 09:48:56,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 09:48:56,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 09:48:56,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-28 09:48:56,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-28 09:48:56,025 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 09:48:56,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-28 09:48:56,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-28 09:48:56,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-28 09:48:56,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-28 09:48:56,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-28 09:48:56,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-28 09:48:56,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-28 09:48:56,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-28 09:48:56,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-28 09:48:56,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-28 09:48:56,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-28 09:48:56,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-28 09:48:56,027 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-28 09:48:56,027 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-28 09:48:56,028 INFO L130 BoogieDeclarations]: Found specification of procedure f19 [2021-10-28 09:48:56,028 INFO L130 BoogieDeclarations]: Found specification of procedure f19_undo [2021-10-28 09:48:56,028 INFO L130 BoogieDeclarations]: Found specification of procedure g19 [2021-10-28 09:48:56,028 INFO L130 BoogieDeclarations]: Found specification of procedure probe_unsafe_19 [2021-10-28 09:48:56,028 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_19 [2021-10-28 09:48:56,028 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-28 09:48:56,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:48:56,029 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 09:48:56,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 09:48:56,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 09:48:56,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:48:56,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 09:48:56,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-28 09:48:56,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-28 09:48:56,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-28 09:48:56,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-28 09:48:56,748 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:48:57,157 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:48:57,446 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:48:57,447 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-28 09:48:57,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:48:57 BoogieIcfgContainer [2021-10-28 09:48:57,450 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:48:57,452 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:48:57,452 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:48:57,455 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:48:57,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:48:54" (1/3) ... [2021-10-28 09:48:57,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23aec810 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:48:57, skipping insertion in model container [2021-10-28 09:48:57,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:55" (2/3) ... [2021-10-28 09:48:57,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23aec810 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:48:57, skipping insertion in model container [2021-10-28 09:48:57,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:48:57" (3/3) ... [2021-10-28 09:48:57,458 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test19-2.i [2021-10-28 09:48:57,464 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:48:57,464 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 94 error locations. [2021-10-28 09:48:57,510 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:48:57,516 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 09:48:57,517 INFO L340 AbstractCegarLoop]: Starting to check reachability of 94 error locations. [2021-10-28 09:48:57,533 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 86 states have (on average 1.6046511627906976) internal successors, (138), 129 states have internal predecessors, (138), 18 states have call successors, (18), 15 states have call predecessors, (18), 15 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2021-10-28 09:48:57,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-28 09:48:57,541 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:48:57,542 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:48:57,542 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting probe_unsafe_19Err0REQUIRES_VIOLATION === [f19_undoErr0REQUIRES_VIOLATION, f19_undoErr1REQUIRES_VIOLATION, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE (and 90 more)] === [2021-10-28 09:48:57,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:57,548 INFO L85 PathProgramCache]: Analyzing trace with hash -498135161, now seen corresponding path program 1 times [2021-10-28 09:48:57,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:48:57,560 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1002105879] [2021-10-28 09:48:57,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:57,562 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:48:57,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:48:57,565 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:48:57,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 09:48:57,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:48:57,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 09:48:57,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:48:57,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 09:48:58,191 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-28 09:48:58,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 20 [2021-10-28 09:48:58,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:48:58,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:48:58,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:48:58,566 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:48:58,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1002105879] [2021-10-28 09:48:58,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1002105879] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:48:58,567 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:48:58,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 7 [2021-10-28 09:48:58,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113428999] [2021-10-28 09:48:58,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:48:58,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:48:58,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:48:58,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:48:58,598 INFO L87 Difference]: Start difference. First operand has 161 states, 86 states have (on average 1.6046511627906976) internal successors, (138), 129 states have internal predecessors, (138), 18 states have call successors, (18), 15 states have call predecessors, (18), 15 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 3 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 09:49:03,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:49:03,657 INFO L93 Difference]: Finished difference Result 169 states and 192 transitions. [2021-10-28 09:49:03,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 09:49:03,658 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 3 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 15 [2021-10-28 09:49:03,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:49:03,670 INFO L225 Difference]: With dead ends: 169 [2021-10-28 09:49:03,670 INFO L226 Difference]: Without dead ends: 166 [2021-10-28 09:49:03,673 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2021-10-28 09:49:03,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-10-28 09:49:03,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 87. [2021-10-28 09:49:03,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 46 states have (on average 1.608695652173913) internal successors, (74), 68 states have internal predecessors, (74), 11 states have call successors, (11), 9 states have call predecessors, (11), 8 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-10-28 09:49:03,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2021-10-28 09:49:03,749 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 15 [2021-10-28 09:49:03,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:49:03,750 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2021-10-28 09:49:03,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 3 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 09:49:03,750 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2021-10-28 09:49:03,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-28 09:49:03,752 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:49:03,753 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:49:03,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:49:03,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:49:03,957 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting probe_unsafe_19Err1REQUIRES_VIOLATION === [f19_undoErr0REQUIRES_VIOLATION, f19_undoErr1REQUIRES_VIOLATION, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE (and 90 more)] === [2021-10-28 09:49:03,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:49:03,959 INFO L85 PathProgramCache]: Analyzing trace with hash -498135160, now seen corresponding path program 1 times [2021-10-28 09:49:03,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:49:03,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [877312257] [2021-10-28 09:49:03,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:49:03,962 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:49:03,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:49:03,966 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:49:04,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 09:49:04,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:49:04,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-28 09:49:04,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:49:04,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 09:49:04,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 09:49:06,486 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-28 09:49:06,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-10-28 09:49:06,499 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-28 09:49:06,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 24 [2021-10-28 09:49:06,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:49:06,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:49:17,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:49:17,274 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:49:17,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [877312257] [2021-10-28 09:49:17,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [877312257] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:49:17,274 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:49:17,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-28 09:49:17,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859142763] [2021-10-28 09:49:17,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 09:49:17,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:49:17,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 09:49:17,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=145, Unknown=4, NotChecked=0, Total=182 [2021-10-28 09:49:17,277 INFO L87 Difference]: Start difference. First operand 87 states and 95 transitions. Second operand has 14 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 5 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-28 09:54:06,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:54:06,824 INFO L93 Difference]: Finished difference Result 167 states and 192 transitions. [2021-10-28 09:54:06,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-28 09:54:06,824 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 5 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 15 [2021-10-28 09:54:06,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:54:06,826 INFO L225 Difference]: With dead ends: 167 [2021-10-28 09:54:06,826 INFO L226 Difference]: Without dead ends: 167 [2021-10-28 09:54:06,827 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 48.6s TimeCoverageRelationStatistics Valid=160, Invalid=580, Unknown=16, NotChecked=0, Total=756 [2021-10-28 09:54:06,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2021-10-28 09:54:06,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 84. [2021-10-28 09:54:06,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 46 states have (on average 1.5217391304347827) internal successors, (70), 65 states have internal predecessors, (70), 11 states have call successors, (11), 9 states have call predecessors, (11), 8 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-10-28 09:54:06,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 91 transitions. [2021-10-28 09:54:06,838 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 91 transitions. Word has length 15 [2021-10-28 09:54:06,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:54:06,839 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 91 transitions. [2021-10-28 09:54:06,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 5 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-28 09:54:06,839 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 91 transitions. [2021-10-28 09:54:06,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-28 09:54:06,840 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:54:06,840 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:54:06,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:07,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:54:07,041 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting f19Err0REQUIRES_VIOLATION === [f19_undoErr0REQUIRES_VIOLATION, f19_undoErr1REQUIRES_VIOLATION, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE (and 90 more)] === [2021-10-28 09:54:07,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:07,042 INFO L85 PathProgramCache]: Analyzing trace with hash 593639727, now seen corresponding path program 1 times [2021-10-28 09:54:07,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:54:07,043 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [691524344] [2021-10-28 09:54:07,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:07,043 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:54:07,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:54:07,044 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:54:07,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 09:54:07,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:54:07,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 09:54:07,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:54:07,486 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-28 09:54:07,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 24 [2021-10-28 09:54:07,522 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:54:07,522 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:54:07,832 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:54:07,832 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:54:07,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [691524344] [2021-10-28 09:54:07,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [691524344] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:54:07,832 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:54:07,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 7 [2021-10-28 09:54:07,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946204525] [2021-10-28 09:54:07,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:54:07,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:54:07,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:54:07,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:54:07,834 INFO L87 Difference]: Start difference. First operand 84 states and 91 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 09:54:08,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:54:08,807 INFO L93 Difference]: Finished difference Result 151 states and 175 transitions. [2021-10-28 09:54:08,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 09:54:08,808 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 26 [2021-10-28 09:54:08,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:54:08,809 INFO L225 Difference]: With dead ends: 151 [2021-10-28 09:54:08,810 INFO L226 Difference]: Without dead ends: 151 [2021-10-28 09:54:08,810 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 40 SyntacticMatches, 6 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2021-10-28 09:54:08,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-10-28 09:54:08,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 82. [2021-10-28 09:54:08,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 46 states have (on average 1.4782608695652173) internal successors, (68), 63 states have internal predecessors, (68), 11 states have call successors, (11), 9 states have call predecessors, (11), 8 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-10-28 09:54:08,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 89 transitions. [2021-10-28 09:54:08,819 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 89 transitions. Word has length 26 [2021-10-28 09:54:08,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:54:08,820 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 89 transitions. [2021-10-28 09:54:08,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 09:54:08,820 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 89 transitions. [2021-10-28 09:54:08,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-28 09:54:08,821 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:54:08,822 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:54:08,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:09,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:54:09,024 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting f19Err1REQUIRES_VIOLATION === [f19_undoErr0REQUIRES_VIOLATION, f19_undoErr1REQUIRES_VIOLATION, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE (and 90 more)] === [2021-10-28 09:54:09,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:09,024 INFO L85 PathProgramCache]: Analyzing trace with hash 593639728, now seen corresponding path program 1 times [2021-10-28 09:54:09,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:54:09,024 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [273200491] [2021-10-28 09:54:09,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:09,025 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:54:09,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:54:09,028 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:54:09,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 09:54:09,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:54:09,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-28 09:54:09,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:54:11,789 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-28 09:54:11,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 39 [2021-10-28 09:54:11,804 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-28 09:54:11,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 31 [2021-10-28 09:54:11,867 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:54:11,867 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:54:16,888 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_f19_~a.base_BEFORE_CALL_4 (_ BitVec 32)) (|v_ldv_malloc_#res.base_21| (_ BitVec 32)) (v_f19_~a.offset_BEFORE_CALL_2 (_ BitVec 32))) (or (exists ((|v_ldv_malloc_#res.base_20| (_ BitVec 32))) (and (= (_ bv0 1) (bvneg (select |c_old(#valid)| |v_ldv_malloc_#res.base_20|))) (or (not (bvule v_f19_~a.offset_BEFORE_CALL_2 (bvadd (_ bv4 32) v_f19_~a.offset_BEFORE_CALL_2))) (exists ((v_ldv_malloc_~size_20 (_ BitVec 32))) (not (bvule (bvadd (_ bv4 32) v_f19_~a.offset_BEFORE_CALL_2) (select (store |c_old(#length)| |v_ldv_malloc_#res.base_20| v_ldv_malloc_~size_20) v_f19_~a.base_BEFORE_CALL_4))))))) (and (forall ((ldv_malloc_~size (_ BitVec 32))) (bvule (bvadd (_ bv4 32) v_f19_~a.offset_BEFORE_CALL_2) (select (store |c_#length| |v_ldv_malloc_#res.base_21| ldv_malloc_~size) v_f19_~a.base_BEFORE_CALL_4))) (bvule v_f19_~a.offset_BEFORE_CALL_2 (bvadd (_ bv4 32) v_f19_~a.offset_BEFORE_CALL_2))) (not (= (_ bv0 1) (select |c_#valid| |v_ldv_malloc_#res.base_21|))))) is different from true [2021-10-28 09:54:18,797 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2021-10-28 09:54:18,852 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-10-28 09:54:18,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 51 [2021-10-28 09:54:19,896 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:54:19,896 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:54:19,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [273200491] [2021-10-28 09:54:19,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [273200491] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:54:19,897 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:54:19,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 19 [2021-10-28 09:54:19,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40173202] [2021-10-28 09:54:19,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-28 09:54:19,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:54:19,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-28 09:54:19,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=295, Unknown=2, NotChecked=34, Total=380 [2021-10-28 09:54:19,900 INFO L87 Difference]: Start difference. First operand 82 states and 89 transitions. Second operand has 20 states, 15 states have (on average 1.8) internal successors, (27), 14 states have internal predecessors, (27), 9 states have call successors, (11), 7 states have call predecessors, (11), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-28 09:56:34,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:56:34,712 INFO L93 Difference]: Finished difference Result 142 states and 167 transitions. [2021-10-28 09:56:34,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-28 09:56:34,713 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 15 states have (on average 1.8) internal successors, (27), 14 states have internal predecessors, (27), 9 states have call successors, (11), 7 states have call predecessors, (11), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 26 [2021-10-28 09:56:34,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:56:34,715 INFO L225 Difference]: With dead ends: 142 [2021-10-28 09:56:34,715 INFO L226 Difference]: Without dead ends: 142 [2021-10-28 09:56:34,716 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 40.4s TimeCoverageRelationStatistics Valid=175, Invalid=936, Unknown=15, NotChecked=64, Total=1190 [2021-10-28 09:56:34,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-10-28 09:56:34,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 80. [2021-10-28 09:56:34,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 46 states have (on average 1.434782608695652) internal successors, (66), 61 states have internal predecessors, (66), 11 states have call successors, (11), 9 states have call predecessors, (11), 8 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-10-28 09:56:34,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 87 transitions. [2021-10-28 09:56:34,727 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 87 transitions. Word has length 26 [2021-10-28 09:56:34,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:56:34,727 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 87 transitions. [2021-10-28 09:56:34,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 15 states have (on average 1.8) internal successors, (27), 14 states have internal predecessors, (27), 9 states have call successors, (11), 7 states have call predecessors, (11), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-28 09:56:34,728 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 87 transitions. [2021-10-28 09:56:34,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-28 09:56:34,729 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:56:34,729 INFO L513 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] [2021-10-28 09:56:34,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-10-28 09:56:34,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:56:34,936 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting disconnect_19Err0REQUIRES_VIOLATION === [f19_undoErr0REQUIRES_VIOLATION, f19_undoErr1REQUIRES_VIOLATION, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE (and 90 more)] === [2021-10-28 09:56:34,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:56:34,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1653980504, now seen corresponding path program 1 times [2021-10-28 09:56:34,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:56:34,937 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [468367164] [2021-10-28 09:56:34,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:56:34,937 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:56:34,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:56:34,938 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:56:34,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 09:56:35,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:56:35,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 09:56:35,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:56:35,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 18 treesize of output 14 [2021-10-28 09:56:35,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2021-10-28 09:56:35,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:56:35,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:56:35,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:56:35,593 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:56:35,593 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [468367164] [2021-10-28 09:56:35,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [468367164] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:56:35,594 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:56:35,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-10-28 09:56:35,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812654575] [2021-10-28 09:56:35,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:56:35,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:56:35,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:56:35,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:56:35,595 INFO L87 Difference]: Start difference. First operand 80 states and 87 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:56:35,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:56:35,744 INFO L93 Difference]: Finished difference Result 87 states and 96 transitions. [2021-10-28 09:56:35,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:56:35,745 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2021-10-28 09:56:35,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:56:35,746 INFO L225 Difference]: With dead ends: 87 [2021-10-28 09:56:35,746 INFO L226 Difference]: Without dead ends: 87 [2021-10-28 09:56:35,746 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:56:35,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-10-28 09:56:35,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2021-10-28 09:56:35,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 51 states have (on average 1.392156862745098) internal successors, (71), 66 states have internal predecessors, (71), 11 states have call successors, (11), 9 states have call predecessors, (11), 9 states have return successors, (12), 11 states have call predecessors, (12), 10 states have call successors, (12) [2021-10-28 09:56:35,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 94 transitions. [2021-10-28 09:56:35,755 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 94 transitions. Word has length 26 [2021-10-28 09:56:35,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:56:35,755 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 94 transitions. [2021-10-28 09:56:35,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:56:35,756 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 94 transitions. [2021-10-28 09:56:35,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-28 09:56:35,757 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:56:35,757 INFO L513 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] [2021-10-28 09:56:35,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:56:35,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:56:35,975 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting disconnect_19Err0REQUIRES_VIOLATION === [f19_undoErr0REQUIRES_VIOLATION, f19_undoErr1REQUIRES_VIOLATION, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE (and 90 more)] === [2021-10-28 09:56:35,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:56:35,975 INFO L85 PathProgramCache]: Analyzing trace with hash -146428695, now seen corresponding path program 1 times [2021-10-28 09:56:35,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:56:35,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [242099982] [2021-10-28 09:56:35,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:56:35,976 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:56:35,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:56:35,977 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:56:35,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 09:56:36,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:56:36,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 09:56:36,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:56:36,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:56:36,423 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:56:36,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:56:36,706 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:56:36,707 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [242099982] [2021-10-28 09:56:36,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [242099982] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:56:36,707 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:56:36,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-28 09:56:36,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122320841] [2021-10-28 09:56:36,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 09:56:36,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:56:36,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 09:56:36,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:56:36,709 INFO L87 Difference]: Start difference. First operand 86 states and 94 transitions. Second operand has 10 states, 10 states have (on average 2.6) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 09:56:36,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:56:36,811 INFO L93 Difference]: Finished difference Result 108 states and 116 transitions. [2021-10-28 09:56:36,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:56:36,824 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 26 [2021-10-28 09:56:36,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:56:36,826 INFO L225 Difference]: With dead ends: 108 [2021-10-28 09:56:36,826 INFO L226 Difference]: Without dead ends: 108 [2021-10-28 09:56:36,826 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:56:36,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-10-28 09:56:36,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 94. [2021-10-28 09:56:36,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 58 states have (on average 1.396551724137931) internal successors, (81), 73 states have internal predecessors, (81), 11 states have call successors, (11), 9 states have call predecessors, (11), 10 states have return successors, (13), 12 states have call predecessors, (13), 10 states have call successors, (13) [2021-10-28 09:56:36,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 105 transitions. [2021-10-28 09:56:36,836 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 105 transitions. Word has length 26 [2021-10-28 09:56:36,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:56:36,836 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 105 transitions. [2021-10-28 09:56:36,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 09:56:36,837 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 105 transitions. [2021-10-28 09:56:36,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-28 09:56:36,838 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:56:36,838 INFO L513 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] [2021-10-28 09:56:36,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:56:37,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:56:37,051 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [f19_undoErr0REQUIRES_VIOLATION, f19_undoErr1REQUIRES_VIOLATION, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE (and 90 more)] === [2021-10-28 09:56:37,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:56:37,051 INFO L85 PathProgramCache]: Analyzing trace with hash -243695008, now seen corresponding path program 1 times [2021-10-28 09:56:37,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:56:37,052 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [683142159] [2021-10-28 09:56:37,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:56:37,052 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:56:37,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:56:37,053 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:56:37,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-28 09:56:37,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:56:37,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 09:56:37,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:56:37,343 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-28 09:56:37,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-10-28 09:56:41,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:56:41,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:56:52,410 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_4| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((|v_entry_point_~#a19~0.base_16| (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_4| (store |c_old(#valid)| |v_entry_point_~#a19~0.base_16| (_ bv0 1)))) (= (_ bv0 1) (bvneg (select |c_old(#valid)| |v_entry_point_~#a19~0.base_16|))))) (= |v_old(#valid)_BEFORE_CALL_4| (store |c_#valid| |c_entry_point_~#a19~0.base| (_ bv0 1))))) is different from false [2021-10-28 09:56:52,693 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:56:52,693 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [683142159] [2021-10-28 09:56:52,694 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_5| |v_entry_point_~#a19~0.base_16| (_ bv0 1)) v_prenex_3)=(= (select (store |v_old(#valid)_BEFORE_CALL_5| |v_entry_point_~#a19~0.base_16| (_ bv0 1)) v_antiDerIndex_entry0_1) (select v_prenex_3 v_antiDerIndex_entry0_1))} [2021-10-28 09:56:52,694 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1104216465] [2021-10-28 09:56:52,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:56:52,695 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-28 09:56:52,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/cvc4 [2021-10-28 09:56:52,698 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-28 09:56:52,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-10-28 09:56:53,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:56:53,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-28 09:56:53,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:56:53,175 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-28 09:56:53,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 29 [2021-10-28 09:56:57,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:56:57,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:57:01,905 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_9| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((|v_entry_point_~#a19~0.base_16| (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_9| (store |c_old(#valid)| |v_entry_point_~#a19~0.base_16| (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (select |c_old(#valid)| |v_entry_point_~#a19~0.base_16|)))))) (= |v_old(#valid)_BEFORE_CALL_9| |c_#valid|))) is different from false [2021-10-28 09:57:02,002 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_9| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((|v_entry_point_~#a19~0.base_16| (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_9| (store |c_old(#valid)| |v_entry_point_~#a19~0.base_16| (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (select |c_old(#valid)| |v_entry_point_~#a19~0.base_16|)))))) (= |v_old(#valid)_BEFORE_CALL_9| (store |c_#valid| |c_entry_point_~#a19~0.base| (_ bv0 1))))) is different from false [2021-10-28 09:57:02,304 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_10| |v_entry_point_~#a19~0.base_16| (_ bv0 1)) v_prenex_7)=(= (select v_prenex_7 v_antiDerIndex_entry0_2) (select (store |v_old(#valid)_BEFORE_CALL_10| |v_entry_point_~#a19~0.base_16| (_ bv0 1)) v_antiDerIndex_entry0_2))} [2021-10-28 09:57:02,305 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752132540] [2021-10-28 09:57:02,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:57:02,305 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:57:02,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:57:02,313 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:57:02,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-28 09:57:02,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:57:02,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 09:57:02,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:57:07,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:57:07,068 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:57:11,299 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_14| (Array (_ BitVec 32) (_ BitVec 1)))) (or (exists ((|v_entry_point_~#a19~0.base_16| (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_14| (store |c_old(#valid)| |v_entry_point_~#a19~0.base_16| (_ bv0 1)))) (= (_ bv0 1) (bvneg (select |c_old(#valid)| |v_entry_point_~#a19~0.base_16|))))) (= |v_old(#valid)_BEFORE_CALL_14| |c_#valid|))) is different from false [2021-10-28 09:57:13,890 INFO L354 Elim1Store]: treesize reduction 16, result has 78.1 percent of original size [2021-10-28 09:57:13,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 58 treesize of output 105 [2021-10-28 09:57:14,553 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(not (= (store |old(#valid)| |v_entry_point_~#a19~0.base_BEFORE_CALL_8| (_ bv0 1)) v_prenex_9))=(not (= (select v_prenex_9 v_antiDerIndex_entry0_4) (select (store |old(#valid)| |v_entry_point_~#a19~0.base_BEFORE_CALL_8| (_ bv0 1)) v_antiDerIndex_entry0_4)))} [2021-10-28 09:57:14,553 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:57:14,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-28 09:57:14,553 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-28 09:57:14,554 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-10-28 09:57:14,561 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 09:57:14,563 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19_undoErr0REQUIRES_VIOLATION [2021-10-28 09:57:14,563 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19_undoErr1REQUIRES_VIOLATION [2021-10-28 09:57:14,564 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:57:14,564 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:57:14,564 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19_undoErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:57:14,564 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19Err0REQUIRES_VIOLATION [2021-10-28 09:57:14,565 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19Err1REQUIRES_VIOLATION [2021-10-28 09:57:14,565 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19Err2REQUIRES_VIOLATION [2021-10-28 09:57:14,565 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19Err3REQUIRES_VIOLATION [2021-10-28 09:57:14,565 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-28 09:57:14,566 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-28 09:57:14,566 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-28 09:57:14,566 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-28 09:57:14,566 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_19Err0REQUIRES_VIOLATION [2021-10-28 09:57:14,566 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_19Err1REQUIRES_VIOLATION [2021-10-28 09:57:14,567 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_19Err2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:57:14,567 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_19Err3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:57:14,567 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_19Err4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:57:14,567 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-28 09:57:14,568 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-28 09:57:14,568 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-28 09:57:14,568 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-28 09:57:14,568 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-28 09:57:14,569 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-28 09:57:14,569 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-28 09:57:14,569 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-28 09:57:14,569 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 09:57:14,569 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 09:57:14,570 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-28 09:57:14,570 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-28 09:57:14,570 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-28 09:57:14,570 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-28 09:57:14,570 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-28 09:57:14,571 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-28 09:57:14,571 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-28 09:57:14,571 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-28 09:57:14,571 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_unsafe_19Err0REQUIRES_VIOLATION [2021-10-28 09:57:14,572 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_unsafe_19Err1REQUIRES_VIOLATION [2021-10-28 09:57:14,572 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_unsafe_19Err2REQUIRES_VIOLATION [2021-10-28 09:57:14,572 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_unsafe_19Err3REQUIRES_VIOLATION [2021-10-28 09:57:14,572 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_unsafe_19Err4REQUIRES_VIOLATION [2021-10-28 09:57:14,572 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_unsafe_19Err5REQUIRES_VIOLATION [2021-10-28 09:57:14,573 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_unsafe_19Err6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:57:14,573 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_unsafe_19Err7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:57:14,573 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_unsafe_19Err8ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:57:14,573 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 09:57:14,574 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 09:57:14,574 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 09:57:14,574 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 09:57:14,574 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-28 09:57:14,575 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-28 09:57:14,575 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-28 09:57:14,575 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-28 09:57:14,575 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 09:57:14,575 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 09:57:14,576 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-28 09:57:14,576 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-28 09:57:14,576 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-28 09:57:14,576 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-28 09:57:14,576 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-28 09:57:14,577 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-28 09:57:14,577 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-28 09:57:14,577 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-28 09:57:14,577 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-28 09:57:14,578 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-28 09:57:14,578 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:57:14,578 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:57:14,578 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:57:14,578 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:57:14,579 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:57:14,579 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:57:14,579 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-28 09:57:14,579 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-28 09:57:14,580 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-28 09:57:14,580 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-28 09:57:14,580 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-28 09:57:14,580 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-28 09:57:14,580 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-28 09:57:14,581 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-28 09:57:14,581 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:57:14,581 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:57:14,581 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:57:14,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:57:14,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:57:14,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:57:14,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-28 09:57:14,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-28 09:57:14,583 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 09:57:14,583 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 09:57:14,583 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 09:57:14,583 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 09:57:14,584 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-28 09:57:14,584 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-28 09:57:14,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-28 09:57:14,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:57:15,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-28 09:57:15,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:57:15,210 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:57:15,214 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:57:15,217 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-28 09:57:15,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:57:15 BoogieIcfgContainer [2021-10-28 09:57:15,227 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:57:15,227 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:57:15,228 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:57:15,228 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:57:15,228 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:48:57" (3/4) ... [2021-10-28 09:57:15,232 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:57:15,232 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:57:15,234 INFO L168 Benchmark]: Toolchain (without parser) took 500246.60 ms. Allocated memory was 71.3 MB in the beginning and 94.4 MB in the end (delta: 23.1 MB). Free memory was 50.4 MB in the beginning and 38.1 MB in the end (delta: 12.3 MB). Peak memory consumption was 34.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:57:15,234 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 52.4 MB. Free memory is still 33.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:57:15,234 INFO L168 Benchmark]: CACSL2BoogieTranslator took 781.56 ms. Allocated memory is still 71.3 MB. Free memory was 50.2 MB in the beginning and 36.0 MB in the end (delta: 14.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:57:15,235 INFO L168 Benchmark]: Boogie Preprocessor took 129.83 ms. Allocated memory is still 71.3 MB. Free memory was 36.0 MB in the beginning and 31.2 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:57:15,236 INFO L168 Benchmark]: RCFGBuilder took 1549.09 ms. Allocated memory was 71.3 MB in the beginning and 94.4 MB in the end (delta: 23.1 MB). Free memory was 31.2 MB in the beginning and 70.5 MB in the end (delta: -39.3 MB). Peak memory consumption was 13.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:57:15,236 INFO L168 Benchmark]: TraceAbstraction took 497775.05 ms. Allocated memory is still 94.4 MB. Free memory was 70.0 MB in the beginning and 38.9 MB in the end (delta: 31.1 MB). Peak memory consumption was 48.8 MB. Max. memory is 16.1 GB. [2021-10-28 09:57:15,236 INFO L168 Benchmark]: Witness Printer took 5.20 ms. Allocated memory is still 94.4 MB. Free memory is still 38.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:57:15,238 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 52.4 MB. Free memory is still 33.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 781.56 ms. Allocated memory is still 71.3 MB. Free memory was 50.2 MB in the beginning and 36.0 MB in the end (delta: 14.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 129.83 ms. Allocated memory is still 71.3 MB. Free memory was 36.0 MB in the beginning and 31.2 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1549.09 ms. Allocated memory was 71.3 MB in the beginning and 94.4 MB in the end (delta: 23.1 MB). Free memory was 31.2 MB in the beginning and 70.5 MB in the end (delta: -39.3 MB). Peak memory consumption was 13.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 497775.05 ms. Allocated memory is still 94.4 MB. Free memory was 70.0 MB in the beginning and 38.9 MB in the end (delta: 31.1 MB). Peak memory consumption was 48.8 MB. Max. memory is 16.1 GB. * Witness Printer took 5.20 ms. Allocated memory is still 94.4 MB. Free memory is still 38.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 803]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: unable to decide satisfiability of path constraint, overapproximation of memtrack at line 803. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L804] CALL entry_point() [L797] struct A19 a19; [L798] CALL, EXPR probe_unsafe_19(&a19) [L774] int ret = - -3; [L775] CALL, EXPR ldv_malloc(sizeof(int)) [L526] COND FALSE !(__VERIFIER_nondet_int()) [L529] return 0; [L775] RET, EXPR ldv_malloc(sizeof(int)) [L775] a->q = (int *)ldv_malloc(sizeof(int)) [L776] EXPR a->q [L776] COND TRUE !a->q [L790] return ret; [L798] RET, EXPR probe_unsafe_19(&a19) [L798] int ret = probe_unsafe_19(&a19); [L799] COND FALSE !(ret==0) [L804] RET entry_point() - UnprovableResult [Line: 768]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 768]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 768]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 768]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 768]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 762]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 762]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 763]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 763]: 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: 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: 793]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 793]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 793]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 793]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 793]: Unable to prove that free always succeeds Unable to prove that free 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: 775]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 775]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 776]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 776]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 788]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 788]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 788]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 788]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 788]: Unable to prove that free always succeeds Unable to prove that free 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 52 procedures, 401 locations, 94 error locations. Started 1 CEGAR loops. OverallTime: 497.7s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 430.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 572 SDtfs, 1020 SDslu, 2301 SDs, 0 SdLazy, 1878 SolverSat, 358 SolverUnsat, 179 SolverUnknown, 0 SolverNotchecked, 354.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 311 GetRequests, 199 SyntacticMatches, 11 SemanticMatches, 101 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 90.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=161occurred in iteration=0, InterpolantAutomatonStates: 83, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 308 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 41.3s InterpolantComputationTime, 161 NumberOfCodeBlocks, 161 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 282 ConstructedInterpolants, 40 QuantifiedInterpolants, 1987 SizeOfPredicates, 32 NumberOfNonLiveVariables, 811 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 16/16 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-28 09:57:15,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_706395ea-fc28-4d06-a680-98f9be6d8de1/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...