./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.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_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/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_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/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_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/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 165c3d31baf6e9e6eb3241886fc1e2aed511e6788979a2e699609d2c8b9e748b ................................................................................................................................... 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_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/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_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/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_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/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 165c3d31baf6e9e6eb3241886fc1e2aed511e6788979a2e699609d2c8b9e748b ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:59:51,778 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:59:51,781 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:59:51,816 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:59:51,817 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:59:51,818 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:59:51,820 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:59:51,823 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:59:51,825 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:59:51,826 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:59:51,827 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:59:51,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:59:51,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:59:51,831 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:59:51,832 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:59:51,837 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:59:51,838 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:59:51,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:59:51,845 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:59:51,848 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:59:51,854 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:59:51,855 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:59:51,858 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:59:51,859 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:59:51,866 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:59:51,868 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:59:51,868 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:59:51,870 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:59:51,871 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:59:51,872 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:59:51,872 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:59:51,873 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:59:51,874 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:59:51,875 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:59:51,876 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:59:51,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:59:51,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:59:51,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:59:51,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:59:51,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:59:51,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:59:51,883 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 23:59:51,928 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:59:51,928 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:59:51,935 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:59:51,935 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:59:51,937 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:59:51,937 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:59:51,938 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:59:51,938 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:59:51,938 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:59:51,938 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:59:51,940 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:59:51,940 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:59:51,940 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:59:51,941 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:59:51,941 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:59:51,941 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:59:51,941 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:59:51,941 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:59:51,942 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:59:51,942 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:59:51,942 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:59:51,942 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:59:51,943 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:59:51,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:59:51,943 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:59:51,943 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:59:51,943 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:59:51,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:59:51,944 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:59:51,945 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_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 165c3d31baf6e9e6eb3241886fc1e2aed511e6788979a2e699609d2c8b9e748b [2021-10-28 23:59:52,242 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:59:52,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:59:52,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:59:52,276 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:59:52,277 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:59:52,278 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2021-10-28 23:59:52,347 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/data/61359c86a/cb7af70ef1c94e87a62677e138a6f69d/FLAG7bdb407cc [2021-10-28 23:59:52,896 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:59:52,897 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2021-10-28 23:59:52,909 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/data/61359c86a/cb7af70ef1c94e87a62677e138a6f69d/FLAG7bdb407cc [2021-10-28 23:59:53,195 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/data/61359c86a/cb7af70ef1c94e87a62677e138a6f69d [2021-10-28 23:59:53,198 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:59:53,199 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:59:53,201 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:59:53,201 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:59:53,231 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:59:53,232 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:59:53" (1/1) ... [2021-10-28 23:59:53,233 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a155146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:53, skipping insertion in model container [2021-10-28 23:59:53,233 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:59:53" (1/1) ... [2021-10-28 23:59:53,240 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:59:53,296 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:59:53,597 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:59:53,614 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 23:59:53,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2b34f1ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:53, skipping insertion in model container [2021-10-28 23:59:53,615 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:59:53,616 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-28 23:59:53,618 INFO L168 Benchmark]: Toolchain (without parser) took 417.40 ms. Allocated memory is still 98.6 MB. Free memory was 55.3 MB in the beginning and 72.6 MB in the end (delta: -17.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:59:53,618 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 98.6 MB. Free memory is still 72.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:59:53,619 INFO L168 Benchmark]: CACSL2BoogieTranslator took 414.79 ms. Allocated memory is still 98.6 MB. Free memory was 55.2 MB in the beginning and 72.6 MB in the end (delta: -17.5 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:59:53,621 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 98.6 MB. Free memory is still 72.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 414.79 ms. Allocated memory is still 98.6 MB. Free memory was 55.2 MB in the beginning and 72.6 MB in the end (delta: -17.5 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 515]: 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 23:59:55,855 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:59:55,858 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:59:55,914 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:59:55,915 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:59:55,919 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:59:55,921 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:59:55,927 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:59:55,930 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:59:55,935 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:59:55,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:59:55,939 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:59:55,940 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:59:55,943 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:59:55,945 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:59:55,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:59:55,953 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:59:55,954 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:59:55,956 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:59:55,966 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:59:55,968 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:59:55,970 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:59:55,973 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:59:55,974 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:59:55,984 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:59:55,984 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:59:55,984 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:59:55,986 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:59:55,987 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:59:55,988 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:59:55,988 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:59:55,989 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:59:55,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:59:55,992 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:59:55,993 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:59:55,994 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:59:55,994 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:59:55,995 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:59:55,995 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:59:55,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:59:55,997 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:59:55,998 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 23:59:56,039 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:59:56,040 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:59:56,040 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:59:56,041 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:59:56,043 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:59:56,043 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:59:56,043 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:59:56,043 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:59:56,044 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:59:56,044 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:59:56,045 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:59:56,045 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:59:56,045 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:59:56,045 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:59:56,046 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:59:56,046 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:59:56,046 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:59:56,046 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:59:56,046 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 23:59:56,047 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 23:59:56,047 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:59:56,047 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:59:56,047 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:59:56,047 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:59:56,048 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:59:56,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:59:56,048 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:59:56,049 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:59:56,049 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 23:59:56,049 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 23:59:56,049 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:59:56,049 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 23:59:56,050 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_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 165c3d31baf6e9e6eb3241886fc1e2aed511e6788979a2e699609d2c8b9e748b [2021-10-28 23:59:56,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:59:56,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:59:56,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:59:56,466 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:59:56,467 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:59:56,468 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2021-10-28 23:59:56,544 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/data/f1ce09c16/b8ece8e353cb41c98588254b563fbb2f/FLAG10c9e47de [2021-10-28 23:59:57,161 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:59:57,165 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2021-10-28 23:59:57,188 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/data/f1ce09c16/b8ece8e353cb41c98588254b563fbb2f/FLAG10c9e47de [2021-10-28 23:59:57,440 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/data/f1ce09c16/b8ece8e353cb41c98588254b563fbb2f [2021-10-28 23:59:57,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:59:57,444 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:59:57,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:59:57,446 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:59:57,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:59:57,450 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:59:57" (1/1) ... [2021-10-28 23:59:57,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ffc9b7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:57, skipping insertion in model container [2021-10-28 23:59:57,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:59:57" (1/1) ... [2021-10-28 23:59:57,459 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:59:57,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:59:57,926 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:59:57,943 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-28 23:59:57,956 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:59:57,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:59:58,015 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:59:58,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:59:58,105 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:59:58,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:58 WrapperNode [2021-10-28 23:59:58,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:59:58,108 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:59:58,108 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:59:58,109 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:59:58,120 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:58" (1/1) ... [2021-10-28 23:59:58,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:58" (1/1) ... [2021-10-28 23:59:58,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:58" (1/1) ... [2021-10-28 23:59:58,159 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:58" (1/1) ... [2021-10-28 23:59:58,185 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:58" (1/1) ... [2021-10-28 23:59:58,193 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:58" (1/1) ... [2021-10-28 23:59:58,201 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:58" (1/1) ... [2021-10-28 23:59:58,215 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:59:58,226 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:59:58,226 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:59:58,226 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:59:58,227 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:58" (1/1) ... [2021-10-28 23:59:58,234 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:59:58,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:58,260 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:58,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:59:58,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 23:59:58,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:59:58,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:59:58,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 23:59:58,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 23:59:58,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 23:59:58,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 23:59:58,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 23:59:58,326 INFO L138 BoogieDeclarations]: Found implementation of procedure expandArray [2021-10-28 23:59:58,326 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 23:59:58,326 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc [2021-10-28 23:59:58,327 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 23:59:58,327 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 23:59:58,327 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 23:59:58,327 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 23:59:58,328 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 23:59:58,328 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 23:59:58,328 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 23:59:58,328 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 23:59:58,328 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 23:59:58,329 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 23:59:58,329 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 23:59:58,329 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 23:59:58,329 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 23:59:58,330 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 23:59:58,330 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 23:59:58,330 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 23:59:58,330 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 23:59:58,330 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 23:59:58,330 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 23:59:58,331 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 23:59:58,331 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 23:59:58,331 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 23:59:58,331 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 23:59:58,331 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 23:59:58,332 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 23:59:58,332 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 23:59:58,332 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 23:59:58,332 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 23:59:58,332 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 23:59:58,332 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 23:59:58,333 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 23:59:58,333 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 23:59:58,333 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 23:59:58,334 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 23:59:58,334 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 23:59:58,334 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 23:59:58,335 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 23:59:58,335 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 23:59:58,335 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 23:59:58,335 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 23:59:58,336 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 23:59:58,336 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 23:59:58,336 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 23:59:58,336 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 23:59:58,336 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 23:59:58,337 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 23:59:58,337 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 23:59:58,337 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 23:59:58,338 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 23:59:58,338 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 23:59:58,338 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 23:59:58,339 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 23:59:58,340 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 23:59:58,340 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 23:59:58,341 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 23:59:58,341 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 23:59:58,341 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 23:59:58,341 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 23:59:58,341 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 23:59:58,341 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 23:59:58,342 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 23:59:58,342 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 23:59:58,342 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 23:59:58,342 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 23:59:58,342 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 23:59:58,342 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 23:59:58,343 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 23:59:58,344 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 23:59:58,344 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 23:59:58,344 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 23:59:58,344 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 23:59:58,344 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 23:59:58,344 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 23:59:58,345 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 23:59:58,345 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 23:59:58,345 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 23:59:58,345 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 23:59:58,345 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 23:59:58,346 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 23:59:58,346 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 23:59:58,346 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 23:59:58,346 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 23:59:58,346 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 23:59:58,346 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 23:59:58,347 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 23:59:58,347 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 23:59:58,347 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 23:59:58,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 23:59:58,347 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 23:59:58,348 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 23:59:58,348 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 23:59:58,348 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 23:59:58,348 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 23:59:58,349 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 23:59:58,349 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 23:59:58,349 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 23:59:58,349 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 23:59:58,349 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 23:59:58,349 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 23:59:58,350 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 23:59:58,350 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 23:59:58,350 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 23:59:58,350 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 23:59:58,350 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 23:59:58,350 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 23:59:58,351 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 23:59:58,351 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 23:59:58,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 23:59:58,351 INFO L130 BoogieDeclarations]: Found specification of procedure expandArray [2021-10-28 23:59:58,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc [2021-10-28 23:59:58,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 23:59:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 23:59:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:59:58,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 23:59:58,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:59:58,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:59:58,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 23:59:58,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:59:58,896 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:59:58,896 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-28 23:59:58,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:59:58 BoogieIcfgContainer [2021-10-28 23:59:58,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:59:58,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:59:58,900 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:59:58,903 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:59:58,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:59:57" (1/3) ... [2021-10-28 23:59:58,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f553eb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:59:58, skipping insertion in model container [2021-10-28 23:59:58,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:58" (2/3) ... [2021-10-28 23:59:58,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f553eb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:59:58, skipping insertion in model container [2021-10-28 23:59:58,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:59:58" (3/3) ... [2021-10-28 23:59:58,906 INFO L111 eAbstractionObserver]: Analyzing ICFG array-realloc-3.i [2021-10-28 23:59:58,911 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:59:58,911 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-28 23:59:58,954 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:59:58,962 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 23:59:58,962 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-28 23:59:58,977 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 20 states have internal predecessors, (25), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-10-28 23:59:58,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-28 23:59:58,983 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:59:58,984 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:59:58,984 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, expandArrayErr0REQUIRES_VIOLATION, expandArrayErr1REQUIRES_VIOLATION] === [2021-10-28 23:59:58,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:58,989 INFO L85 PathProgramCache]: Analyzing trace with hash 451943323, now seen corresponding path program 1 times [2021-10-28 23:59:59,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:59:59,000 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [566897900] [2021-10-28 23:59:59,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:59,002 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:59:59,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:59:59,008 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:59:59,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 23:59:59,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:59,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:59:59,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:59,208 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 23:59:59,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:59:59,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:59:59,253 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:59:59,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [566897900] [2021-10-28 23:59:59,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [566897900] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:59:59,255 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:59:59,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 23:59:59,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070229726] [2021-10-28 23:59:59,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:59:59,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:59:59,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:59:59,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:59:59,283 INFO L87 Difference]: Start difference. First operand has 29 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 20 states have internal predecessors, (25), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:59:59,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:59:59,366 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2021-10-28 23:59:59,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:59:59,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2021-10-28 23:59:59,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:59:59,391 INFO L225 Difference]: With dead ends: 35 [2021-10-28 23:59:59,392 INFO L226 Difference]: Without dead ends: 31 [2021-10-28 23:59:59,393 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:59:59,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-10-28 23:59:59,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2021-10-28 23:59:59,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 16 states have (on average 1.3125) internal successors, (21), 18 states have internal predecessors, (21), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-28 23:59:59,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2021-10-28 23:59:59,431 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 8 [2021-10-28 23:59:59,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:59:59,432 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2021-10-28 23:59:59,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:59:59,432 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2021-10-28 23:59:59,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-28 23:59:59,433 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:59:59,433 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:59:59,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:59,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:59:59,650 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, expandArrayErr0REQUIRES_VIOLATION, expandArrayErr1REQUIRES_VIOLATION] === [2021-10-28 23:59:59,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:59,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1125341978, now seen corresponding path program 1 times [2021-10-28 23:59:59,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:59:59,652 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1530841487] [2021-10-28 23:59:59,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:59,652 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:59:59,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:59:59,655 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:59:59,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 23:59:59,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:59,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:59:59,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:59,844 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 23:59:59,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:59:59,888 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 23:59:59,889 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:59:59,889 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1530841487] [2021-10-28 23:59:59,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1530841487] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:59:59,889 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:59:59,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-28 23:59:59,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483847617] [2021-10-28 23:59:59,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:59:59,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:59:59,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:59:59,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:59:59,892 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:59:59,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:59:59,896 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2021-10-28 23:59:59,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:59:59,897 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2021-10-28 23:59:59,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:59:59,898 INFO L225 Difference]: With dead ends: 26 [2021-10-28 23:59:59,898 INFO L226 Difference]: Without dead ends: 26 [2021-10-28 23:59:59,899 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:59:59,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-10-28 23:59:59,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-10-28 23:59:59,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-28 23:59:59,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2021-10-28 23:59:59,903 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 9 [2021-10-28 23:59:59,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:59:59,903 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2021-10-28 23:59:59,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:59:59,903 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2021-10-28 23:59:59,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 23:59:59,904 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:59:59,904 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:59:59,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:00,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:00:00,128 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, expandArrayErr0REQUIRES_VIOLATION, expandArrayErr1REQUIRES_VIOLATION] === [2021-10-29 00:00:00,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:00,129 INFO L85 PathProgramCache]: Analyzing trace with hash -285526799, now seen corresponding path program 1 times [2021-10-29 00:00:00,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:00:00,129 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1805635966] [2021-10-29 00:00:00,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:00,130 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:00:00,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:00:00,133 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:00:00,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 00:00:00,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:00,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 00:00:00,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:00,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:00,519 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:00:00,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:00,670 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:00:00,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1805635966] [2021-10-29 00:00:00,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1805635966] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:00,670 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:00,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-29 00:00:00,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094829053] [2021-10-29 00:00:00,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-29 00:00:00,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:00:00,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-29 00:00:00,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-10-29 00:00:00,674 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 10 states, 8 states have (on average 2.125) internal successors, (17), 10 states have internal predecessors, (17), 3 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-29 00:00:00,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:00,796 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2021-10-29 00:00:00,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 00:00:00,797 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 2.125) internal successors, (17), 10 states have internal predecessors, (17), 3 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 16 [2021-10-29 00:00:00,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:00,798 INFO L225 Difference]: With dead ends: 27 [2021-10-29 00:00:00,798 INFO L226 Difference]: Without dead ends: 27 [2021-10-29 00:00:00,798 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-10-29 00:00:00,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-10-29 00:00:00,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-10-29 00:00:00,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-29 00:00:00,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2021-10-29 00:00:00,804 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 16 [2021-10-29 00:00:00,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:00,804 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2021-10-29 00:00:00,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 2.125) internal successors, (17), 10 states have internal predecessors, (17), 3 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-29 00:00:00,805 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2021-10-29 00:00:00,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 00:00:00,806 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:00,806 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:00:00,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:01,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:00:01,017 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting expandArrayErr0REQUIRES_VIOLATION === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, expandArrayErr0REQUIRES_VIOLATION, expandArrayErr1REQUIRES_VIOLATION] === [2021-10-29 00:00:01,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:01,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1792130560, now seen corresponding path program 1 times [2021-10-29 00:00:01,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:00:01,019 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [415655882] [2021-10-29 00:00:01,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:01,019 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:00:01,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:00:01,020 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:00:01,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-29 00:00:01,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:01,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 00:00:01,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:01,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:01,243 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:00:01,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:01,304 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:00:01,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [415655882] [2021-10-29 00:00:01,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [415655882] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:01,305 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:01,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-10-29 00:00:01,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78754945] [2021-10-29 00:00:01,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 00:00:01,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:00:01,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 00:00:01,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:00:01,307 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-29 00:00:01,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:01,348 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2021-10-29 00:00:01,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 00:00:01,349 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2021-10-29 00:00:01,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:01,350 INFO L225 Difference]: With dead ends: 35 [2021-10-29 00:00:01,351 INFO L226 Difference]: Without dead ends: 35 [2021-10-29 00:00:01,351 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-29 00:00:01,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-10-29 00:00:01,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 30. [2021-10-29 00:00:01,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 22 states have internal predecessors, (22), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2021-10-29 00:00:01,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2021-10-29 00:00:01,357 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 17 [2021-10-29 00:00:01,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:01,357 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2021-10-29 00:00:01,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-29 00:00:01,358 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2021-10-29 00:00:01,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 00:00:01,359 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:01,359 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:00:01,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:01,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:00:01,571 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting expandArrayErr0REQUIRES_VIOLATION === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, expandArrayErr0REQUIRES_VIOLATION, expandArrayErr1REQUIRES_VIOLATION] === [2021-10-29 00:00:01,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:01,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1793054081, now seen corresponding path program 1 times [2021-10-29 00:00:01,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:00:01,572 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [176548512] [2021-10-29 00:00:01,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:01,573 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:00:01,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:00:01,574 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:00:01,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-29 00:00:01,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:01,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 00:00:01,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:01,796 INFO L354 Elim1Store]: treesize reduction 10, result has 50.0 percent of original size [2021-10-29 00:00:01,798 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 16 [2021-10-29 00:00:01,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:01,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:00:01,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:01,929 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:00:01,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [176548512] [2021-10-29 00:00:01,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [176548512] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:01,930 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:01,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-29 00:00:01,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875542026] [2021-10-29 00:00:01,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 00:00:01,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:00:01,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 00:00:01,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 00:00:01,935 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-29 00:00:02,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:02,010 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2021-10-29 00:00:02,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 00:00:02,013 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-10-29 00:00:02,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:02,014 INFO L225 Difference]: With dead ends: 29 [2021-10-29 00:00:02,014 INFO L226 Difference]: Without dead ends: 29 [2021-10-29 00:00:02,014 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 00:00:02,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-29 00:00:02,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-29 00:00:02,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 21 states have internal predecessors, (21), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2021-10-29 00:00:02,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2021-10-29 00:00:02,022 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 17 [2021-10-29 00:00:02,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:02,026 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2021-10-29 00:00:02,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-29 00:00:02,027 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2021-10-29 00:00:02,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 00:00:02,028 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:02,028 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:00:02,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:02,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:00:02,243 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting expandArrayErr1REQUIRES_VIOLATION === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, expandArrayErr0REQUIRES_VIOLATION, expandArrayErr1REQUIRES_VIOLATION] === [2021-10-29 00:00:02,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:02,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1793054082, now seen corresponding path program 1 times [2021-10-29 00:00:02,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:00:02,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1003888747] [2021-10-29 00:00:02,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:02,244 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:00:02,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:00:02,245 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:00:02,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-29 00:00:02,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:02,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-29 00:00:02,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:02,495 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 [2021-10-29 00:00:02,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:02,609 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:00:03,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:03,349 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:00:03,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1003888747] [2021-10-29 00:00:03,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1003888747] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:03,349 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:03,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-10-29 00:00:03,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335993571] [2021-10-29 00:00:03,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-29 00:00:03,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:00:03,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-29 00:00:03,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-10-29 00:00:03,351 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 12 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 5 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-29 00:00:04,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:04,743 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2021-10-29 00:00:04,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-29 00:00:04,744 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 5 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 17 [2021-10-29 00:00:04,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:04,745 INFO L225 Difference]: With dead ends: 76 [2021-10-29 00:00:04,746 INFO L226 Difference]: Without dead ends: 74 [2021-10-29 00:00:04,746 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2021-10-29 00:00:04,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-10-29 00:00:04,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 48. [2021-10-29 00:00:04,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 33 states have (on average 1.2121212121212122) internal successors, (40), 34 states have internal predecessors, (40), 7 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-10-29 00:00:04,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2021-10-29 00:00:04,754 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 17 [2021-10-29 00:00:04,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:04,754 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2021-10-29 00:00:04,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 5 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-29 00:00:04,755 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2021-10-29 00:00:04,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-29 00:00:04,756 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:04,756 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] [2021-10-29 00:00:04,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:04,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:00:04,968 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, expandArrayErr0REQUIRES_VIOLATION, expandArrayErr1REQUIRES_VIOLATION] === [2021-10-29 00:00:04,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:04,968 INFO L85 PathProgramCache]: Analyzing trace with hash 494948438, now seen corresponding path program 1 times [2021-10-29 00:00:04,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:00:04,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [540322233] [2021-10-29 00:00:04,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:04,969 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:00:04,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:00:04,969 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:00:04,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-29 00:00:05,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:00:05,162 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:00:05,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:00:05,253 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-29 00:00:05,254 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 00:00:05,255 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-29 00:00:05,256 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location expandArrayErr0REQUIRES_VIOLATION [2021-10-29 00:00:05,257 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location expandArrayErr1REQUIRES_VIOLATION [2021-10-29 00:00:05,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:05,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:00:05,460 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:00:05,463 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 00:00:05,480 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-29 00:00:05,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 12:00:05 BoogieIcfgContainer [2021-10-29 00:00:05,510 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 00:00:05,511 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 00:00:05,511 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 00:00:05,511 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 00:00:05,511 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:59:58" (3/4) ... [2021-10-29 00:00:05,514 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-29 00:00:05,516 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 00:00:05,517 INFO L168 Benchmark]: Toolchain (without parser) took 8072.92 ms. Allocated memory was 86.0 MB in the beginning and 119.5 MB in the end (delta: 33.6 MB). Free memory was 63.8 MB in the beginning and 60.6 MB in the end (delta: 3.2 MB). Peak memory consumption was 37.8 MB. Max. memory is 16.1 GB. [2021-10-29 00:00:05,523 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 50.3 MB. Free memory was 30.7 MB in the beginning and 30.7 MB in the end (delta: 40.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 00:00:05,523 INFO L168 Benchmark]: CACSL2BoogieTranslator took 662.20 ms. Allocated memory is still 86.0 MB. Free memory was 63.6 MB in the beginning and 59.6 MB in the end (delta: 4.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 00:00:05,524 INFO L168 Benchmark]: Boogie Preprocessor took 117.04 ms. Allocated memory is still 86.0 MB. Free memory was 59.6 MB in the beginning and 57.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 00:00:05,526 INFO L168 Benchmark]: RCFGBuilder took 672.39 ms. Allocated memory is still 86.0 MB. Free memory was 57.1 MB in the beginning and 60.0 MB in the end (delta: -2.9 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.1 GB. [2021-10-29 00:00:05,527 INFO L168 Benchmark]: TraceAbstraction took 6610.23 ms. Allocated memory was 86.0 MB in the beginning and 119.5 MB in the end (delta: 33.6 MB). Free memory was 59.4 MB in the beginning and 61.6 MB in the end (delta: -2.2 MB). Peak memory consumption was 31.8 MB. Max. memory is 16.1 GB. [2021-10-29 00:00:05,527 INFO L168 Benchmark]: Witness Printer took 5.54 ms. Allocated memory is still 119.5 MB. Free memory was 61.6 MB in the beginning and 60.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 00:00:05,529 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 50.3 MB. Free memory was 30.7 MB in the beginning and 30.7 MB in the end (delta: 40.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 662.20 ms. Allocated memory is still 86.0 MB. Free memory was 63.6 MB in the beginning and 59.6 MB in the end (delta: 4.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 117.04 ms. Allocated memory is still 86.0 MB. Free memory was 59.6 MB in the beginning and 57.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 672.39 ms. Allocated memory is still 86.0 MB. Free memory was 57.1 MB in the beginning and 60.0 MB in the end (delta: -2.9 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6610.23 ms. Allocated memory was 86.0 MB in the beginning and 119.5 MB in the end (delta: 33.6 MB). Free memory was 59.4 MB in the beginning and 61.6 MB in the end (delta: -2.2 MB). Peak memory consumption was 31.8 MB. Max. memory is 16.1 GB. * Witness Printer took 5.54 ms. Allocated memory is still 119.5 MB. Free memory was 61.6 MB in the beginning and 60.6 MB in the end (delta: 1.0 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: 525]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 525. Possible FailurePath: [L512] int num; [L513] int ind, newsize, i = 1; VAL [\old(i)=5, \old(ind)=6, \old(newsize)=7, \old(num)=9, i=1, ind=0, newsize=0, num=0] [L526] num = __VERIFIER_nondet_int() [L527] COND FALSE !(!(num > 0 && num < 100)) [L530] int *a = (int *)malloc(sizeof(int)); [L531] COND FALSE !(a == ((void *)0)) [L534] newsize = 0 VAL [\old(argc)=11, \old(newsize)=0, \old(num)=0, a={1:0}, argc=11, argv={13:12}, argv={13:12}, i=1, ind=0, newsize=0, num=1] [L535] CALL expandArray(a) VAL [\old(newsize)=0, \old(num)=0, arg={1:0}, i=1, ind=0, newsize=0, num=1] [L515] int *a = (int *)arg; VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, i=1, ind=0, newsize=0, num=1] [L516] COND TRUE newsize < num [L517] newsize = newsize + 1 [L518] int *b = ((void *)0); VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={0:0}, i=1, ind=0, newsize=1, num=1] [L519] EXPR, FCALL realloc(a, sizeof(int) * newsize) VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={0:0}, i=1, ind=0, newsize=1, num=1, realloc(a, sizeof(int) * newsize)={1:0}] [L519] b = realloc(a, sizeof(int) * newsize) [L520] b[newsize - 1] = i VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L521] a = b VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L516] COND FALSE !(newsize < num) VAL [\old(newsize)=0, \old(num)=0, a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L523] return 0; VAL [\old(newsize)=0, \old(num)=0, \result={0:0}, a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L535] RET expandArray(a) VAL [\old(argc)=11, \old(newsize)=0, \old(num)=0, a={1:0}, argc=11, argv={13:12}, argv={13:12}, expandArray(a)={0:0}, i=1, ind=0, newsize=1, num=1] [L536] return 0; VAL [\old(argc)=11, \old(newsize)=0, \old(num)=0, \result=0, a={1:0}, argc=11, argv={13:12}, argv={13:12}, i=1, ind=0, newsize=1, num=1] - UnprovableResult [Line: 520]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 520]: 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 11 procedures, 50 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 6.5s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 145 SDtfs, 128 SDslu, 279 SDs, 0 SdLazy, 280 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 172 GetRequests, 134 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=6, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 36 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 108 NumberOfCodeBlocks, 108 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 156 ConstructedInterpolants, 0 QuantifiedInterpolants, 581 SizeOfPredicates, 7 NumberOfNonLiveVariables, 482 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 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 [2021-10-29 00:00:05,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_016d376e-a3fa-40ed-89e7-c2d9b05e08a9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...