./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_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test19-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test19-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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 23:45:00,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:45:00,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:45:00,843 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:45:00,844 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:45:00,845 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:45:00,847 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:45:00,850 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:45:00,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:45:00,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:45:00,854 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:45:00,856 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:45:00,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:45:00,858 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:45:00,860 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:45:00,861 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:45:00,863 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:45:00,864 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:45:00,866 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:45:00,869 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:45:00,871 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:45:00,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:45:00,875 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:45:00,876 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:45:00,880 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:45:00,880 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:45:00,881 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:45:00,882 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:45:00,883 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:45:00,884 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:45:00,885 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:45:00,886 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:45:00,887 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:45:00,888 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:45:00,890 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:45:00,890 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:45:00,891 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:45:00,892 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:45:00,892 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:45:00,894 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:45:00,894 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:45:00,896 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 23:45:00,921 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:45:00,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:45:00,921 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:45:00,922 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:45:00,923 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:45:00,923 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:45:00,924 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:45:00,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:45:00,924 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:45:00,924 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:45:00,924 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:45:00,925 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:45:00,925 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:45:00,925 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:45:00,925 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:45:00,926 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:45:00,926 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:45:00,926 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:45:00,926 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:45:00,926 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:45:00,927 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:45:00,927 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:45:00,927 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:45:00,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:45:00,928 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:45:00,928 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:45:00,928 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:45:00,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:45:00,928 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:45:00,929 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_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1df2ca055a97db0a00e0c4b03f212c5ac3c2765d37b628ab5708f179a281754f [2021-10-28 23:45:01,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:45:01,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:45:01,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:45:01,206 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:45:01,207 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:45:01,208 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-memsafety/memleaks_test19-2.i [2021-10-28 23:45:01,304 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/data/198d4721d/f861210e3351479a9a9d9f17bb6e2751/FLAG4796558bb [2021-10-28 23:45:02,033 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:45:02,033 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/sv-benchmarks/c/ldv-memsafety/memleaks_test19-2.i [2021-10-28 23:45:02,048 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/data/198d4721d/f861210e3351479a9a9d9f17bb6e2751/FLAG4796558bb [2021-10-28 23:45:02,278 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/data/198d4721d/f861210e3351479a9a9d9f17bb6e2751 [2021-10-28 23:45:02,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:45:02,290 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:45:02,294 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:45:02,294 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:45:02,298 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:45:02,299 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:45:02" (1/1) ... [2021-10-28 23:45:02,300 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@266c7670 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:45:02, skipping insertion in model container [2021-10-28 23:45:02,301 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:45:02" (1/1) ... [2021-10-28 23:45:02,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:45:02,384 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:45:02,771 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:45:02,792 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-28 23:45:02,793 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@43907582 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:45:02, skipping insertion in model container [2021-10-28 23:45:02,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:45:02,794 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-28 23:45:02,796 INFO L168 Benchmark]: Toolchain (without parser) took 504.81 ms. Allocated memory is still 94.4 MB. Free memory was 60.7 MB in the beginning and 67.7 MB in the end (delta: -7.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:45:02,797 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 75.5 MB. Free memory is still 36.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:45:02,798 INFO L168 Benchmark]: CACSL2BoogieTranslator took 499.44 ms. Allocated memory is still 94.4 MB. Free memory was 60.5 MB in the beginning and 67.7 MB in the end (delta: -7.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:45:02,800 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 75.5 MB. Free memory is still 36.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 499.44 ms. Allocated memory is still 94.4 MB. Free memory was 60.5 MB in the beginning and 67.7 MB in the end (delta: -7.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:45:05,166 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:45:05,168 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:45:05,202 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:45:05,202 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:45:05,204 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:45:05,206 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:45:05,208 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:45:05,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:45:05,212 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:45:05,213 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:45:05,215 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:45:05,215 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:45:05,217 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:45:05,218 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:45:05,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:45:05,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:45:05,223 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:45:05,225 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:45:05,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:45:05,245 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:45:05,251 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:45:05,254 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:45:05,256 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:45:05,265 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:45:05,266 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:45:05,266 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:45:05,267 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:45:05,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:45:05,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:45:05,270 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:45:05,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:45:05,272 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:45:05,274 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:45:05,277 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:45:05,278 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:45:05,279 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:45:05,279 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:45:05,279 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:45:05,281 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:45:05,282 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:45:05,287 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 23:45:05,333 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:45:05,333 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:45:05,334 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:45:05,334 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:45:05,336 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:45:05,336 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:45:05,336 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:45:05,337 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:45:05,337 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:45:05,337 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:45:05,338 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:45:05,338 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:45:05,339 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:45:05,339 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:45:05,339 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:45:05,339 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:45:05,339 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:45:05,340 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:45:05,340 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 23:45:05,340 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 23:45:05,340 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:45:05,340 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:45:05,341 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:45:05,341 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:45:05,341 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:45:05,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:45:05,341 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:45:05,341 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:45:05,342 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 23:45:05,342 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 23:45:05,342 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:45:05,342 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 23:45:05,343 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_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1df2ca055a97db0a00e0c4b03f212c5ac3c2765d37b628ab5708f179a281754f [2021-10-28 23:45:05,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:45:05,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:45:05,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:45:05,773 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:45:05,774 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:45:05,777 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-memsafety/memleaks_test19-2.i [2021-10-28 23:45:05,866 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/data/3cc97e4b2/72e12886293248d7afda7c89090ec652/FLAG434e09898 [2021-10-28 23:45:06,499 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:45:06,500 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/sv-benchmarks/c/ldv-memsafety/memleaks_test19-2.i [2021-10-28 23:45:06,527 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/data/3cc97e4b2/72e12886293248d7afda7c89090ec652/FLAG434e09898 [2021-10-28 23:45:06,800 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/data/3cc97e4b2/72e12886293248d7afda7c89090ec652 [2021-10-28 23:45:06,803 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:45:06,804 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:45:06,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:45:06,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:45:06,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:45:06,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:45:06" (1/1) ... [2021-10-28 23:45:06,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5682552a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:45:06, skipping insertion in model container [2021-10-28 23:45:06,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:45:06" (1/1) ... [2021-10-28 23:45:06,819 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:45:06,863 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:45:07,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:45:07,309 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-28 23:45:07,323 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:45:07,377 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:45:07,386 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:45:07,444 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:45:07,491 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:45:07,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:45:07 WrapperNode [2021-10-28 23:45:07,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:45:07,493 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:45:07,493 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:45:07,493 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:45:07,506 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:45:07" (1/1) ... [2021-10-28 23:45:07,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:45:07" (1/1) ... [2021-10-28 23:45:07,551 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:45:07" (1/1) ... [2021-10-28 23:45:07,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:45:07" (1/1) ... [2021-10-28 23:45:07,614 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:45:07" (1/1) ... [2021-10-28 23:45:07,640 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:45:07" (1/1) ... [2021-10-28 23:45:07,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:45:07" (1/1) ... [2021-10-28 23:45:07,666 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:45:07,679 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:45:07,680 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:45:07,680 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:45:07,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:45:07" (1/1) ... [2021-10-28 23:45:07,689 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:45:07,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:45:07,717 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:45:07,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:45:07,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 23:45:07,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:45:07,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 23:45:07,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:45:07,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 23:45:07,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 23:45:07,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 23:45:07,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 23:45:07,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 23:45:07,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-28 23:45:07,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-28 23:45:07,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-28 23:45:07,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-28 23:45:07,781 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-28 23:45:07,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-28 23:45:07,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-28 23:45:07,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-28 23:45:07,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-28 23:45:07,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-28 23:45:07,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-28 23:45:07,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-28 23:45:07,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-28 23:45:07,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-28 23:45:07,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-28 23:45:07,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-28 23:45:07,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-28 23:45:07,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-28 23:45:07,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-28 23:45:07,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-28 23:45:07,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-28 23:45:07,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-28 23:45:07,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-28 23:45:07,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-28 23:45:07,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-28 23:45:07,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-28 23:45:07,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-28 23:45:07,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-28 23:45:07,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-28 23:45:07,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-28 23:45:07,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-28 23:45:07,785 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-28 23:45:07,785 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-28 23:45:07,785 INFO L138 BoogieDeclarations]: Found implementation of procedure f19 [2021-10-28 23:45:07,786 INFO L138 BoogieDeclarations]: Found implementation of procedure f19_undo [2021-10-28 23:45:07,786 INFO L138 BoogieDeclarations]: Found implementation of procedure g19 [2021-10-28 23:45:07,786 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_unsafe_19 [2021-10-28 23:45:07,786 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_19 [2021-10-28 23:45:07,787 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-28 23:45:07,787 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 23:45:07,788 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-28 23:45:07,788 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-28 23:45:07,788 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-28 23:45:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 23:45:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 23:45:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 23:45:07,789 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 23:45:07,789 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 23:45:07,789 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 23:45:07,789 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 23:45:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 23:45:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 23:45:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 23:45:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 23:45:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 23:45:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 23:45:07,796 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 23:45:07,796 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 23:45:07,796 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 23:45:07,796 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 23:45:07,796 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 23:45:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 23:45:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 23:45:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 23:45:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 23:45:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 23:45:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 23:45:07,798 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 23:45:07,798 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 23:45:07,799 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 23:45:07,799 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 23:45:07,799 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 23:45:07,799 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 23:45:07,799 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 23:45:07,800 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 23:45:07,800 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 23:45:07,800 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 23:45:07,800 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 23:45:07,800 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 23:45:07,800 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 23:45:07,801 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 23:45:07,801 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 23:45:07,801 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 23:45:07,801 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 23:45:07,801 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 23:45:07,801 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 23:45:07,802 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 23:45:07,802 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 23:45:07,802 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 23:45:07,802 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 23:45:07,802 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 23:45:07,802 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 23:45:07,803 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 23:45:07,803 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 23:45:07,803 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 23:45:07,803 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 23:45:07,804 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 23:45:07,804 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 23:45:07,804 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 23:45:07,804 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 23:45:07,804 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 23:45:07,804 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 23:45:07,804 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 23:45:07,805 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 23:45:07,805 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 23:45:07,805 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 23:45:07,805 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 23:45:07,805 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 23:45:07,806 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 23:45:07,806 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 23:45:07,806 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 23:45:07,806 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 23:45:07,807 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 23:45:07,807 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 23:45:07,808 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 23:45:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 23:45:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 23:45:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 23:45:07,812 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 23:45:07,812 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 23:45:07,814 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 23:45:07,814 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 23:45:07,814 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 23:45:07,815 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 23:45:07,820 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 23:45:07,820 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 23:45:07,820 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 23:45:07,820 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 23:45:07,820 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 23:45:07,820 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 23:45:07,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 23:45:07,820 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 23:45:07,821 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 23:45:07,821 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 23:45:07,821 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 23:45:07,821 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 23:45:07,821 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 23:45:07,821 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 23:45:07,821 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 23:45:07,821 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 23:45:07,821 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 23:45:07,822 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 23:45:07,822 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 23:45:07,822 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 23:45:07,822 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 23:45:07,822 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 23:45:07,822 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 23:45:07,822 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 23:45:07,822 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 23:45:07,822 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 23:45:07,823 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-28 23:45:07,823 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 23:45:07,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-28 23:45:07,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-28 23:45:07,823 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-28 23:45:07,823 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-28 23:45:07,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-28 23:45:07,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:45:07,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-28 23:45:07,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-28 23:45:07,824 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-28 23:45:07,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 23:45:07,824 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-28 23:45:07,831 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-28 23:45:07,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-28 23:45:07,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 23:45:07,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-28 23:45:07,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-28 23:45:07,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-28 23:45:07,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-28 23:45:07,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-28 23:45:07,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-28 23:45:07,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:45:07,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-28 23:45:07,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-28 23:45:07,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-28 23:45:07,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-28 23:45:07,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-28 23:45:07,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 23:45:07,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 23:45:07,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-28 23:45:07,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-28 23:45:07,833 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 23:45:07,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-28 23:45:07,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-28 23:45:07,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-28 23:45:07,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-28 23:45:07,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-28 23:45:07,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-28 23:45:07,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-28 23:45:07,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-28 23:45:07,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-28 23:45:07,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-28 23:45:07,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-28 23:45:07,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-28 23:45:07,835 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-28 23:45:07,835 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-28 23:45:07,835 INFO L130 BoogieDeclarations]: Found specification of procedure f19 [2021-10-28 23:45:07,835 INFO L130 BoogieDeclarations]: Found specification of procedure f19_undo [2021-10-28 23:45:07,835 INFO L130 BoogieDeclarations]: Found specification of procedure g19 [2021-10-28 23:45:07,835 INFO L130 BoogieDeclarations]: Found specification of procedure probe_unsafe_19 [2021-10-28 23:45:07,835 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_19 [2021-10-28 23:45:07,835 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-28 23:45:07,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:45:07,836 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 23:45:07,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 23:45:07,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 23:45:07,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:45:07,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:45:07,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-28 23:45:07,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-28 23:45:07,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-28 23:45:07,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-28 23:45:08,688 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:45:09,150 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:45:09,550 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:45:09,550 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-28 23:45:09,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:45:09 BoogieIcfgContainer [2021-10-28 23:45:09,553 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:45:09,555 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:45:09,555 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:45:09,563 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:45:09,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:45:06" (1/3) ... [2021-10-28 23:45:09,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66201c6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:45:09, skipping insertion in model container [2021-10-28 23:45:09,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:45:07" (2/3) ... [2021-10-28 23:45:09,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66201c6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:45:09, skipping insertion in model container [2021-10-28 23:45:09,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:45:09" (3/3) ... [2021-10-28 23:45:09,566 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test19-2.i [2021-10-28 23:45:09,572 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:45:09,572 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 94 error locations. [2021-10-28 23:45:09,640 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:45:09,646 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 23:45:09,646 INFO L340 AbstractCegarLoop]: Starting to check reachability of 94 error locations. [2021-10-28 23:45:09,673 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 23:45:09,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-28 23:45:09,690 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:45:09,691 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:45:09,691 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 23:45:09,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:45:09,703 INFO L85 PathProgramCache]: Analyzing trace with hash -498135161, now seen corresponding path program 1 times [2021-10-28 23:45:09,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:45:09,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1954290982] [2021-10-28 23:45:09,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:45:09,723 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:45:09,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:45:09,732 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:45:09,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 23:45:09,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:45:09,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 23:45:09,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:45:10,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 23:45:10,421 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-28 23:45:10,424 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 23:45:10,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:45:10,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:45:10,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:45:10,826 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:45:10,826 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1954290982] [2021-10-28 23:45:10,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1954290982] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:45:10,827 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:45:10,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 7 [2021-10-28 23:45:10,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183819913] [2021-10-28 23:45:10,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:45:10,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:45:10,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:45:10,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:45:10,863 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 23:45:15,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:45:15,982 INFO L93 Difference]: Finished difference Result 169 states and 192 transitions. [2021-10-28 23:45:15,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:45:15,984 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 23:45:15,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:45:15,997 INFO L225 Difference]: With dead ends: 169 [2021-10-28 23:45:15,997 INFO L226 Difference]: Without dead ends: 166 [2021-10-28 23:45:15,999 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 23:45:16,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-10-28 23:45:16,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 87. [2021-10-28 23:45:16,077 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 23:45:16,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2021-10-28 23:45:16,094 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 15 [2021-10-28 23:45:16,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:45:16,095 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2021-10-28 23:45:16,095 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 23:45:16,095 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2021-10-28 23:45:16,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-28 23:45:16,097 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:45:16,097 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:45:16,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:45:16,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:45:16,298 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 23:45:16,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:45:16,298 INFO L85 PathProgramCache]: Analyzing trace with hash -498135160, now seen corresponding path program 1 times [2021-10-28 23:45:16,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:45:16,299 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1399951184] [2021-10-28 23:45:16,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:45:16,300 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:45:16,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:45:16,301 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:45:16,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 23:45:16,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:45:16,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-28 23:45:16,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:45:16,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 23:45:16,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 23:45:18,804 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-28 23:45:18,805 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 23:45:18,819 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-28 23:45:18,819 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 23:45:18,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:45:18,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:45:31,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:45:31,037 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:45:31,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1399951184] [2021-10-28 23:45:31,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1399951184] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:45:31,037 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:45:31,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-28 23:45:31,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85945147] [2021-10-28 23:45:31,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 23:45:31,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:45:31,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 23:45:31,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=144, Unknown=5, NotChecked=0, Total=182 [2021-10-28 23:45:31,041 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 23:50:06,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:50:06,050 INFO L93 Difference]: Finished difference Result 183 states and 212 transitions. [2021-10-28 23:50:06,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-28 23:50:06,051 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 23:50:06,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:50:06,055 INFO L225 Difference]: With dead ends: 183 [2021-10-28 23:50:06,055 INFO L226 Difference]: Without dead ends: 183 [2021-10-28 23:50:06,056 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 49.4s TimeCoverageRelationStatistics Valid=158, Invalid=578, Unknown=20, NotChecked=0, Total=756 [2021-10-28 23:50:06,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-10-28 23:50:06,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 84. [2021-10-28 23:50:06,070 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 23:50:06,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 91 transitions. [2021-10-28 23:50:06,072 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 91 transitions. Word has length 15 [2021-10-28 23:50:06,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:50:06,073 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 91 transitions. [2021-10-28 23:50:06,073 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 23:50:06,073 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 91 transitions. [2021-10-28 23:50:06,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-28 23:50:06,074 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:50:06,075 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 23:50:06,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-28 23:50:06,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:50:06,276 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 23:50:06,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:06,277 INFO L85 PathProgramCache]: Analyzing trace with hash 593639727, now seen corresponding path program 1 times [2021-10-28 23:50:06,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:50:06,278 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2028628072] [2021-10-28 23:50:06,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:06,278 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:50:06,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:50:06,279 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:50:06,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 23:50:06,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:06,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 23:50:06,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:50:06,875 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-28 23:50:06,876 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 23:50:06,934 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:50:06,934 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:50:07,374 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:50:07,375 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:50:07,375 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2028628072] [2021-10-28 23:50:07,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2028628072] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:50:07,375 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:50:07,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 7 [2021-10-28 23:50:07,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998241971] [2021-10-28 23:50:07,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:50:07,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:50:07,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:50:07,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:50:07,378 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 23:50:08,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:50:08,854 INFO L93 Difference]: Finished difference Result 151 states and 175 transitions. [2021-10-28 23:50:08,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 23:50:08,855 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 23:50:08,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:50:08,858 INFO L225 Difference]: With dead ends: 151 [2021-10-28 23:50:08,858 INFO L226 Difference]: Without dead ends: 151 [2021-10-28 23:50:08,858 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 40 SyntacticMatches, 6 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:50:08,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-10-28 23:50:08,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 82. [2021-10-28 23:50:08,869 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 23:50:08,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 89 transitions. [2021-10-28 23:50:08,870 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 89 transitions. Word has length 26 [2021-10-28 23:50:08,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:50:08,871 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 89 transitions. [2021-10-28 23:50:08,871 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 23:50:08,871 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 89 transitions. [2021-10-28 23:50:08,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-28 23:50:08,873 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:50:08,873 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 23:50:08,886 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-28 23:50:09,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:50:09,080 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 23:50:09,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:09,081 INFO L85 PathProgramCache]: Analyzing trace with hash 593639728, now seen corresponding path program 1 times [2021-10-28 23:50:09,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:50:09,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2019686656] [2021-10-28 23:50:09,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:09,082 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:50:09,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:50:09,085 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:50:09,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 23:50:09,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:09,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-28 23:50:09,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:50:12,085 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-28 23:50:12,085 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 23:50:12,108 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-28 23:50:12,108 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 23:50:12,195 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:50:12,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:50:32,781 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 23:50:32,841 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-10-28 23:50:32,842 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 23:50:37,673 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:50:37,673 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:50:37,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2019686656] [2021-10-28 23:50:37,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2019686656] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:50:37,674 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:50:37,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 19 [2021-10-28 23:50:37,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195412146] [2021-10-28 23:50:37,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-28 23:50:37,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:50:37,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-28 23:50:37,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=320, Unknown=10, NotChecked=0, Total=380 [2021-10-28 23:50:37,676 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 23:54:39,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:54:39,258 INFO L93 Difference]: Finished difference Result 169 states and 196 transitions. [2021-10-28 23:54:39,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-28 23:54:39,269 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 23:54:39,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:54:39,271 INFO L225 Difference]: With dead ends: 169 [2021-10-28 23:54:39,271 INFO L226 Difference]: Without dead ends: 169 [2021-10-28 23:54:39,272 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 80.8s TimeCoverageRelationStatistics Valid=224, Invalid=1148, Unknown=34, NotChecked=0, Total=1406 [2021-10-28 23:54:39,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2021-10-28 23:54:39,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 80. [2021-10-28 23:54:39,287 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 23:54:39,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 87 transitions. [2021-10-28 23:54:39,288 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 87 transitions. Word has length 26 [2021-10-28 23:54:39,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:54:39,288 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 87 transitions. [2021-10-28 23:54:39,289 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 23:54:39,289 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 87 transitions. [2021-10-28 23:54:39,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-28 23:54:39,290 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:54:39,290 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 23:54:39,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:54:39,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:54:39,496 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 23:54:39,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:54:39,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1653980504, now seen corresponding path program 1 times [2021-10-28 23:54:39,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:54:39,497 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1731123967] [2021-10-28 23:54:39,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:54:39,498 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:54:39,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:54:39,499 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:54:39,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 23:54:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:54:39,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:54:39,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:54:39,864 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 23:54:39,915 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 23:54:39,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:54:39,978 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:54:40,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:54:40,225 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:54:40,225 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1731123967] [2021-10-28 23:54:40,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1731123967] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:54:40,226 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:54:40,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-10-28 23:54:40,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428134449] [2021-10-28 23:54:40,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:54:40,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:54:40,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:54:40,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:54:40,228 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 23:54:40,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:54:40,438 INFO L93 Difference]: Finished difference Result 87 states and 96 transitions. [2021-10-28 23:54:40,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:54:40,439 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 23:54:40,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:54:40,440 INFO L225 Difference]: With dead ends: 87 [2021-10-28 23:54:40,440 INFO L226 Difference]: Without dead ends: 87 [2021-10-28 23:54:40,442 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 23:54:40,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-10-28 23:54:40,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2021-10-28 23:54:40,450 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 23:54:40,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 94 transitions. [2021-10-28 23:54:40,452 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 94 transitions. Word has length 26 [2021-10-28 23:54:40,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:54:40,453 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 94 transitions. [2021-10-28 23:54:40,453 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 23:54:40,453 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 94 transitions. [2021-10-28 23:54:40,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-28 23:54:40,455 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:54:40,455 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 23:54:40,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:54:40,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:54:40,656 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 23:54:40,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:54:40,656 INFO L85 PathProgramCache]: Analyzing trace with hash -146428695, now seen corresponding path program 1 times [2021-10-28 23:54:40,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:54:40,657 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1251973549] [2021-10-28 23:54:40,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:54:40,658 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:54:40,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:54:40,659 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:54:40,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 23:54:40,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:54:40,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:54:40,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:54:41,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:54:41,121 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:54:41,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:54:41,437 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:54:41,437 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1251973549] [2021-10-28 23:54:41,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1251973549] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:54:41,437 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:54:41,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-28 23:54:41,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945086996] [2021-10-28 23:54:41,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:54:41,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:54:41,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:54:41,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:54:41,440 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 23:54:41,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:54:41,654 INFO L93 Difference]: Finished difference Result 108 states and 116 transitions. [2021-10-28 23:54:41,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:54:41,655 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 23:54:41,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:54:41,657 INFO L225 Difference]: With dead ends: 108 [2021-10-28 23:54:41,657 INFO L226 Difference]: Without dead ends: 108 [2021-10-28 23:54:41,657 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:54:41,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-10-28 23:54:41,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 94. [2021-10-28 23:54:41,666 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 23:54:41,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 105 transitions. [2021-10-28 23:54:41,668 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 105 transitions. Word has length 26 [2021-10-28 23:54:41,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:54:41,668 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 105 transitions. [2021-10-28 23:54:41,669 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 23:54:41,669 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 105 transitions. [2021-10-28 23:54:41,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-28 23:54:41,671 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:54:41,671 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 23:54:41,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:54:41,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:54:41,885 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 23:54:41,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:54:41,886 INFO L85 PathProgramCache]: Analyzing trace with hash -243695008, now seen corresponding path program 1 times [2021-10-28 23:54:41,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:54:41,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [735244284] [2021-10-28 23:54:41,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:54:41,886 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:54:41,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:54:41,888 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:54:41,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-28 23:54:42,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:54:42,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 23:54:42,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:54:42,362 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-28 23:54:42,362 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 23:54:47,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:54:47,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:54:51,464 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_4| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_4| |c_#valid|) (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|))))))) is different from false [2021-10-28 23:54:54,180 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:54:54,181 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [735244284] [2021-10-28 23:54:54,181 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 23:54:54,182 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1503829515] [2021-10-28 23:54:54,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:54:54,182 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-28 23:54:54,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/cvc4 [2021-10-28 23:54:54,186 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-28 23:54:54,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-10-28 23:54:54,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:54:54,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-28 23:54:54,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:54:54,720 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-28 23:54:54,720 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 23:54:59,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:54:59,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:55:03,597 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 23:55:04,293 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 23:55:04,293 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119383580] [2021-10-28 23:55:04,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:04,294 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:55:04,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:04,295 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:55:04,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-28 23:55:04,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:55:04,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:55:04,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:55:08,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:55:08,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:55:13,307 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 23:55:13,431 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_14| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_14| (store |c_#valid| |c_entry_point_~#a19~0.base| (_ bv0 1))) (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|))))))) is different from false [2021-10-28 23:55:13,955 INFO L354 Elim1Store]: treesize reduction 16, result has 78.1 percent of original size [2021-10-28 23:55:13,956 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 23:55:14,783 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 23:55:14,783 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:55:14,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-28 23:55:14,784 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-28 23:55:14,784 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-10-28 23:55:14,793 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 23:55:14,795 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19_undoErr0REQUIRES_VIOLATION [2021-10-28 23:55:14,796 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19_undoErr1REQUIRES_VIOLATION [2021-10-28 23:55:14,796 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:55:14,797 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:55:14,797 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19_undoErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:55:14,797 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19Err0REQUIRES_VIOLATION [2021-10-28 23:55:14,797 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19Err1REQUIRES_VIOLATION [2021-10-28 23:55:14,798 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19Err2REQUIRES_VIOLATION [2021-10-28 23:55:14,798 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f19Err3REQUIRES_VIOLATION [2021-10-28 23:55:14,798 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-28 23:55:14,798 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-28 23:55:14,799 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-28 23:55:14,799 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-28 23:55:14,799 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_19Err0REQUIRES_VIOLATION [2021-10-28 23:55:14,799 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_19Err1REQUIRES_VIOLATION [2021-10-28 23:55:14,800 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_19Err2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:55:14,800 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_19Err3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:55:14,800 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_19Err4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:55:14,800 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-28 23:55:14,801 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-28 23:55:14,801 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-28 23:55:14,801 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-28 23:55:14,801 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-28 23:55:14,802 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-28 23:55:14,802 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-28 23:55:14,802 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-28 23:55:14,802 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 23:55:14,803 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 23:55:14,803 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-28 23:55:14,803 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-28 23:55:14,803 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-28 23:55:14,804 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-28 23:55:14,804 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-28 23:55:14,804 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-28 23:55:14,804 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-28 23:55:14,804 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-28 23:55:14,805 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_unsafe_19Err0REQUIRES_VIOLATION [2021-10-28 23:55:14,805 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_unsafe_19Err1REQUIRES_VIOLATION [2021-10-28 23:55:14,805 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_unsafe_19Err2REQUIRES_VIOLATION [2021-10-28 23:55:14,805 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_unsafe_19Err3REQUIRES_VIOLATION [2021-10-28 23:55:14,806 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_unsafe_19Err4REQUIRES_VIOLATION [2021-10-28 23:55:14,806 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_unsafe_19Err5REQUIRES_VIOLATION [2021-10-28 23:55:14,806 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_unsafe_19Err6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:55:14,807 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_unsafe_19Err7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:55:14,807 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe_unsafe_19Err8ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:55:14,807 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 23:55:14,807 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 23:55:14,808 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 23:55:14,808 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 23:55:14,808 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-28 23:55:14,808 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-28 23:55:14,809 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-28 23:55:14,809 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-28 23:55:14,809 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 23:55:14,809 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 23:55:14,810 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-28 23:55:14,810 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-28 23:55:14,810 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-28 23:55:14,810 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-28 23:55:14,810 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-28 23:55:14,811 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-28 23:55:14,811 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-28 23:55:14,811 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-28 23:55:14,811 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-28 23:55:14,812 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-28 23:55:14,812 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:55:14,812 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:55:14,813 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:55:14,813 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:55:14,813 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:55:14,813 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:55:14,814 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-28 23:55:14,814 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-28 23:55:14,814 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-28 23:55:14,814 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-28 23:55:14,815 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-28 23:55:14,815 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-28 23:55:14,815 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-28 23:55:14,815 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-28 23:55:14,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:55:14,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:55:14,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:55:14,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:55:14,817 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:55:14,817 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:55:14,817 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-28 23:55:14,817 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-28 23:55:14,818 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 23:55:14,818 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 23:55:14,818 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 23:55:14,818 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 23:55:14,819 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-28 23:55:14,819 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-28 23:55:14,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:15,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:15,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:15,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt [2021-10-28 23:55:15,436 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:55:15,440 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:55:15,444 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-28 23:55:15,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:55:15 BoogieIcfgContainer [2021-10-28 23:55:15,454 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:55:15,455 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:55:15,455 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:55:15,455 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:55:15,456 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:45:09" (3/4) ... [2021-10-28 23:55:15,460 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:55:15,460 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:55:15,462 INFO L168 Benchmark]: Toolchain (without parser) took 608656.86 ms. Allocated memory was 65.0 MB in the beginning and 123.7 MB in the end (delta: 58.7 MB). Free memory was 42.6 MB in the beginning and 54.0 MB in the end (delta: -11.4 MB). Peak memory consumption was 47.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:55:15,462 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 65.0 MB. Free memory is still 44.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:55:15,463 INFO L168 Benchmark]: CACSL2BoogieTranslator took 686.52 ms. Allocated memory is still 65.0 MB. Free memory was 42.4 MB in the beginning and 28.6 MB in the end (delta: 13.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:55:15,463 INFO L168 Benchmark]: Boogie Preprocessor took 185.19 ms. Allocated memory is still 65.0 MB. Free memory was 28.6 MB in the beginning and 43.0 MB in the end (delta: -14.4 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:55:15,464 INFO L168 Benchmark]: RCFGBuilder took 1874.63 ms. Allocated memory was 65.0 MB in the beginning and 90.2 MB in the end (delta: 25.2 MB). Free memory was 43.0 MB in the beginning and 61.3 MB in the end (delta: -18.3 MB). Peak memory consumption was 32.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:55:15,464 INFO L168 Benchmark]: TraceAbstraction took 605898.97 ms. Allocated memory was 90.2 MB in the beginning and 123.7 MB in the end (delta: 33.6 MB). Free memory was 60.8 MB in the beginning and 54.0 MB in the end (delta: 6.8 MB). Peak memory consumption was 70.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:55:15,465 INFO L168 Benchmark]: Witness Printer took 5.83 ms. Allocated memory is still 123.7 MB. Free memory is still 54.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:55:15,467 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 65.0 MB. Free memory is still 44.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 686.52 ms. Allocated memory is still 65.0 MB. Free memory was 42.4 MB in the beginning and 28.6 MB in the end (delta: 13.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 185.19 ms. Allocated memory is still 65.0 MB. Free memory was 28.6 MB in the beginning and 43.0 MB in the end (delta: -14.4 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1874.63 ms. Allocated memory was 65.0 MB in the beginning and 90.2 MB in the end (delta: 25.2 MB). Free memory was 43.0 MB in the beginning and 61.3 MB in the end (delta: -18.3 MB). Peak memory consumption was 32.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 605898.97 ms. Allocated memory was 90.2 MB in the beginning and 123.7 MB in the end (delta: 33.6 MB). Free memory was 60.8 MB in the beginning and 54.0 MB in the end (delta: 6.8 MB). Peak memory consumption was 70.6 MB. Max. memory is 16.1 GB. * Witness Printer took 5.83 ms. Allocated memory is still 123.7 MB. Free memory is still 54.0 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: 605.7s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 523.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 591 SDtfs, 933 SDslu, 2623 SDs, 0 SdLazy, 2071 SolverSat, 319 SolverUnsat, 204 SolverUnknown, 0 SolverNotchecked, 423.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 313 GetRequests, 199 SyntacticMatches, 10 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 131.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=161occurred in iteration=0, InterpolantAutomatonStates: 88, 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, 351 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 57.4s 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 23:55:15,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71719e7d-0500-4cd3-94d5-a6dad310469d/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...