./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 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/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_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL --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 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 05:03:20,635 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 05:03:20,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 05:03:20,694 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 05:03:20,695 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 05:03:20,700 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 05:03:20,702 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 05:03:20,707 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 05:03:20,711 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 05:03:20,718 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 05:03:20,720 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 05:03:20,722 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 05:03:20,723 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 05:03:20,728 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 05:03:20,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 05:03:20,740 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 05:03:20,742 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 05:03:20,744 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 05:03:20,752 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 05:03:20,761 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 05:03:20,764 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 05:03:20,766 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 05:03:20,771 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 05:03:20,773 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 05:03:20,785 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 05:03:20,792 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 05:03:20,792 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 05:03:20,794 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 05:03:20,796 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 05:03:20,798 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 05:03:20,800 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 05:03:20,801 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 05:03:20,803 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 05:03:20,806 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 05:03:20,808 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 05:03:20,808 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 05:03:20,809 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 05:03:20,810 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 05:03:20,810 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 05:03:20,811 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 05:03:20,812 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 05:03:20,814 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-11-19 05:03:20,862 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 05:03:20,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 05:03:20,863 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 05:03:20,864 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 05:03:20,864 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 05:03:20,865 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 05:03:20,866 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 05:03:20,866 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 05:03:20,866 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 05:03:20,867 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 05:03:20,867 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 05:03:20,867 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 05:03:20,868 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 05:03:20,868 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 05:03:20,868 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 05:03:20,868 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-19 05:03:20,869 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-19 05:03:20,869 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-19 05:03:20,869 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 05:03:20,870 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 05:03:20,870 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 05:03:20,870 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 05:03:20,870 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 05:03:20,871 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 05:03:20,871 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 05:03:20,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:03:20,872 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 05:03:20,872 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 05:03:20,872 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 05:03:20,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 05:03:20,873 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 05:03:20,873 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_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 165c3d31baf6e9e6eb3241886fc1e2aed511e6788979a2e699609d2c8b9e748b [2021-11-19 05:03:21,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 05:03:21,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 05:03:21,257 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 05:03:21,258 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 05:03:21,259 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 05:03:21,261 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2021-11-19 05:03:21,349 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/data/b6c5e205f/d984489c34d546009cd59f9b3dcd96bc/FLAG6dd2241fb [2021-11-19 05:03:22,058 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 05:03:22,059 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2021-11-19 05:03:22,077 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/data/b6c5e205f/d984489c34d546009cd59f9b3dcd96bc/FLAG6dd2241fb [2021-11-19 05:03:22,338 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/data/b6c5e205f/d984489c34d546009cd59f9b3dcd96bc [2021-11-19 05:03:22,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 05:03:22,345 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-19 05:03:22,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 05:03:22,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 05:03:22,376 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 05:03:22,378 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:03:22" (1/1) ... [2021-11-19 05:03:22,379 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@630d55f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:22, skipping insertion in model container [2021-11-19 05:03:22,379 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:03:22" (1/1) ... [2021-11-19 05:03:22,391 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 05:03:22,468 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 05:03:22,971 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:03:22,991 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) [2021-11-19 05:03:22,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@f17fe6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:22, skipping insertion in model container [2021-11-19 05:03:22,993 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 05:03:22,993 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-11-19 05:03:22,996 INFO L158 Benchmark]: Toolchain (without parser) took 649.95ms. Allocated memory is still 130.0MB. Free memory was 95.5MB in the beginning and 105.3MB in the end (delta: -9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 05:03:23,004 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 81.8MB. Free memory was 53.4MB in the beginning and 53.4MB in the end (delta: 31.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:03:23,006 INFO L158 Benchmark]: CACSL2BoogieTranslator took 631.08ms. Allocated memory is still 130.0MB. Free memory was 95.2MB in the beginning and 105.3MB in the end (delta: -10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 05:03:23,010 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 81.8MB. Free memory was 53.4MB in the beginning and 53.4MB in the end (delta: 31.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 631.08ms. Allocated memory is still 130.0MB. Free memory was 95.2MB in the beginning and 105.3MB in the end (delta: -10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/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_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL --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 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 05:03:25,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 05:03:25,967 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 05:03:26,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 05:03:26,035 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 05:03:26,042 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 05:03:26,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 05:03:26,054 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 05:03:26,058 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 05:03:26,066 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 05:03:26,068 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 05:03:26,071 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 05:03:26,071 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 05:03:26,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 05:03:26,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 05:03:26,083 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 05:03:26,086 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 05:03:26,088 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 05:03:26,091 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 05:03:26,100 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 05:03:26,103 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 05:03:26,105 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 05:03:26,109 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 05:03:26,112 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 05:03:26,123 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 05:03:26,124 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 05:03:26,125 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 05:03:26,128 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 05:03:26,129 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 05:03:26,130 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 05:03:26,131 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 05:03:26,133 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 05:03:26,136 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 05:03:26,137 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 05:03:26,139 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 05:03:26,140 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 05:03:26,142 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 05:03:26,142 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 05:03:26,143 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 05:03:26,145 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 05:03:26,147 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 05:03:26,153 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-11-19 05:03:26,200 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 05:03:26,201 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 05:03:26,202 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 05:03:26,202 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 05:03:26,204 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 05:03:26,204 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 05:03:26,206 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 05:03:26,206 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 05:03:26,207 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 05:03:26,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 05:03:26,209 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 05:03:26,209 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 05:03:26,209 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 05:03:26,210 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 05:03:26,210 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 05:03:26,211 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-19 05:03:26,211 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-19 05:03:26,211 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-19 05:03:26,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 05:03:26,212 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 05:03:26,212 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 05:03:26,212 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 05:03:26,213 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 05:03:26,213 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 05:03:26,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 05:03:26,214 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 05:03:26,214 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 05:03:26,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:03:26,215 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 05:03:26,215 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 05:03:26,216 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-19 05:03:26,216 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 05:03:26,217 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 05:03:26,217 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 05:03:26,217 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_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 165c3d31baf6e9e6eb3241886fc1e2aed511e6788979a2e699609d2c8b9e748b [2021-11-19 05:03:26,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 05:03:26,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 05:03:26,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 05:03:26,744 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 05:03:26,745 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 05:03:26,747 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2021-11-19 05:03:26,838 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/data/e1b77cf8c/64d98e3f9d4744708565e7736bf1ead7/FLAGfcf065c93 [2021-11-19 05:03:27,690 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 05:03:27,691 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/sv-benchmarks/c/array-memsafety-realloc/array-realloc-3.i [2021-11-19 05:03:27,724 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/data/e1b77cf8c/64d98e3f9d4744708565e7736bf1ead7/FLAGfcf065c93 [2021-11-19 05:03:27,883 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/data/e1b77cf8c/64d98e3f9d4744708565e7736bf1ead7 [2021-11-19 05:03:27,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 05:03:27,890 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-19 05:03:27,904 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 05:03:27,904 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 05:03:27,909 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 05:03:27,910 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:03:27" (1/1) ... [2021-11-19 05:03:27,913 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@570268fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:27, skipping insertion in model container [2021-11-19 05:03:27,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:03:27" (1/1) ... [2021-11-19 05:03:27,925 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 05:03:28,002 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 05:03:28,458 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:03:28,484 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 05:03:28,499 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 05:03:28,562 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:03:28,569 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 05:03:28,622 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:03:28,682 INFO L208 MainTranslator]: Completed translation [2021-11-19 05:03:28,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:28 WrapperNode [2021-11-19 05:03:28,684 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 05:03:28,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 05:03:28,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 05:03:28,685 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 05:03:28,700 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:28" (1/1) ... [2021-11-19 05:03:28,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:28" (1/1) ... [2021-11-19 05:03:28,726 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:28" (1/1) ... [2021-11-19 05:03:28,726 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:28" (1/1) ... [2021-11-19 05:03:28,771 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:28" (1/1) ... [2021-11-19 05:03:28,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:28" (1/1) ... [2021-11-19 05:03:28,781 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:28" (1/1) ... [2021-11-19 05:03:28,798 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 05:03:28,800 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 05:03:28,800 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 05:03:28,800 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 05:03:28,801 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:28" (1/1) ... [2021-11-19 05:03:28,813 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:03:28,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:03:28,848 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 05:03:28,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 05:03:28,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-11-19 05:03:28,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 05:03:28,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-11-19 05:03:28,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-11-19 05:03:28,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-11-19 05:03:28,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-11-19 05:03:28,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-11-19 05:03:28,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-11-19 05:03:28,914 INFO L138 BoogieDeclarations]: Found implementation of procedure expandArray [2021-11-19 05:03:28,914 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-11-19 05:03:28,914 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc [2021-11-19 05:03:28,914 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-11-19 05:03:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-11-19 05:03:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-11-19 05:03:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-11-19 05:03:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-11-19 05:03:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-11-19 05:03:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-11-19 05:03:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-11-19 05:03:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-11-19 05:03:28,924 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-11-19 05:03:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-11-19 05:03:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-11-19 05:03:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-11-19 05:03:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-11-19 05:03:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-11-19 05:03:28,925 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-11-19 05:03:28,926 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-11-19 05:03:28,926 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-11-19 05:03:28,926 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-11-19 05:03:28,926 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-11-19 05:03:28,926 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-11-19 05:03:28,926 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-11-19 05:03:28,927 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-11-19 05:03:28,927 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-11-19 05:03:28,927 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-11-19 05:03:28,927 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-11-19 05:03:28,927 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-11-19 05:03:28,927 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-11-19 05:03:28,928 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-11-19 05:03:28,928 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-11-19 05:03:28,928 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-11-19 05:03:28,928 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-11-19 05:03:28,928 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-11-19 05:03:28,928 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-11-19 05:03:28,929 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-11-19 05:03:28,929 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-11-19 05:03:28,929 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-11-19 05:03:28,929 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-11-19 05:03:28,929 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-11-19 05:03:28,929 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-11-19 05:03:28,930 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-11-19 05:03:28,930 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-11-19 05:03:28,930 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-11-19 05:03:28,930 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-11-19 05:03:28,930 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-11-19 05:03:28,930 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-11-19 05:03:28,930 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-11-19 05:03:28,931 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-11-19 05:03:28,931 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-11-19 05:03:28,931 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-11-19 05:03:28,931 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-11-19 05:03:28,931 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-11-19 05:03:28,931 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-11-19 05:03:28,932 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-11-19 05:03:28,932 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-11-19 05:03:28,932 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-11-19 05:03:28,932 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-11-19 05:03:28,932 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-11-19 05:03:28,932 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-11-19 05:03:28,933 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-11-19 05:03:28,933 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-11-19 05:03:28,933 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-11-19 05:03:28,933 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-11-19 05:03:28,933 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-11-19 05:03:28,933 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-11-19 05:03:28,934 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-11-19 05:03:28,934 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-11-19 05:03:28,934 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-11-19 05:03:28,934 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-11-19 05:03:28,934 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-11-19 05:03:28,934 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-11-19 05:03:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-11-19 05:03:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-11-19 05:03:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-11-19 05:03:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-11-19 05:03:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-11-19 05:03:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-11-19 05:03:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-11-19 05:03:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-11-19 05:03:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-11-19 05:03:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-11-19 05:03:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-11-19 05:03:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-11-19 05:03:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-11-19 05:03:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-11-19 05:03:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-11-19 05:03:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-11-19 05:03:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-11-19 05:03:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-11-19 05:03:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-11-19 05:03:28,938 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-11-19 05:03:28,938 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-11-19 05:03:28,938 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-11-19 05:03:28,938 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-11-19 05:03:28,938 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-11-19 05:03:28,938 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-11-19 05:03:28,939 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-11-19 05:03:28,939 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-11-19 05:03:28,939 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-11-19 05:03:28,939 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-11-19 05:03:28,939 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-11-19 05:03:28,939 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-11-19 05:03:28,940 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-11-19 05:03:28,940 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-11-19 05:03:28,940 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-11-19 05:03:28,940 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-11-19 05:03:28,940 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-11-19 05:03:28,941 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-11-19 05:03:28,941 INFO L130 BoogieDeclarations]: Found specification of procedure expandArray [2021-11-19 05:03:28,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc [2021-11-19 05:03:28,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 05:03:28,941 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-11-19 05:03:28,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 05:03:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-11-19 05:03:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 05:03:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-11-19 05:03:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 05:03:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 05:03:29,260 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 05:03:29,262 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 05:03:29,536 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 05:03:29,545 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 05:03:29,545 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 05:03:29,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:03:29 BoogieIcfgContainer [2021-11-19 05:03:29,548 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 05:03:29,550 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 05:03:29,550 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 05:03:29,554 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 05:03:29,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:03:27" (1/3) ... [2021-11-19 05:03:29,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@631f2e3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:03:29, skipping insertion in model container [2021-11-19 05:03:29,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:28" (2/3) ... [2021-11-19 05:03:29,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@631f2e3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:03:29, skipping insertion in model container [2021-11-19 05:03:29,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:03:29" (3/3) ... [2021-11-19 05:03:29,558 INFO L111 eAbstractionObserver]: Analyzing ICFG array-realloc-3.i [2021-11-19 05:03:29,576 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 05:03:29,576 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-19 05:03:29,634 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 05:03:29,643 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 [2021-11-19 05:03:29,644 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-19 05:03:29,674 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) [2021-11-19 05:03:29,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-19 05:03:29,684 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:03:29,685 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:03:29,685 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, expandArrayErr0REQUIRES_VIOLATION, expandArrayErr1REQUIRES_VIOLATION] === [2021-11-19 05:03:29,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:03:29,693 INFO L85 PathProgramCache]: Analyzing trace with hash 451943323, now seen corresponding path program 1 times [2021-11-19 05:03:29,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:03:29,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [539844738] [2021-11-19 05:03:29,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:03:29,710 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:03:29,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:03:29,714 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:03:29,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 05:03:29,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:03:29,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 05:03:29,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:03:30,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:03:30,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:03:30,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:03:30,071 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:03:30,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [539844738] [2021-11-19 05:03:30,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [539844738] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 05:03:30,073 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:03:30,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 05:03:30,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860144320] [2021-11-19 05:03:30,077 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 05:03:30,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 05:03:30,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:03:30,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 05:03:30,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 05:03:30,127 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) [2021-11-19 05:03:30,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:03:30,228 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2021-11-19 05:03:30,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 05:03:30,231 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 [2021-11-19 05:03:30,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:03:30,241 INFO L225 Difference]: With dead ends: 35 [2021-11-19 05:03:30,242 INFO L226 Difference]: Without dead ends: 31 [2021-11-19 05:03:30,244 INFO L932 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 [2021-11-19 05:03:30,249 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 8 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 05:03:30,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 41 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 05:03:30,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-11-19 05:03:30,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2021-11-19 05:03:30,299 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) [2021-11-19 05:03:30,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2021-11-19 05:03:30,302 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 8 [2021-11-19 05:03:30,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:03:30,303 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2021-11-19 05:03:30,303 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) [2021-11-19 05:03:30,303 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2021-11-19 05:03:30,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-19 05:03:30,304 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:03:30,304 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:03:30,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 05:03:30,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:03:30,519 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, expandArrayErr0REQUIRES_VIOLATION, expandArrayErr1REQUIRES_VIOLATION] === [2021-11-19 05:03:30,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:03:30,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1125341978, now seen corresponding path program 1 times [2021-11-19 05:03:30,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:03:30,521 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1001962461] [2021-11-19 05:03:30,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:03:30,522 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:03:30,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:03:30,523 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:03:30,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 05:03:30,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:03:30,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 05:03:30,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:03:30,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:03:30,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:03:30,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:03:30,773 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:03:30,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1001962461] [2021-11-19 05:03:30,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1001962461] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 05:03:30,774 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:03:30,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 05:03:30,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283514415] [2021-11-19 05:03:30,775 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 05:03:30,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 05:03:30,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:03:30,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 05:03:30,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 05:03:30,779 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) [2021-11-19 05:03:30,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:03:30,786 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2021-11-19 05:03:30,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 05:03:30,787 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 [2021-11-19 05:03:30,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:03:30,788 INFO L225 Difference]: With dead ends: 26 [2021-11-19 05:03:30,788 INFO L226 Difference]: Without dead ends: 26 [2021-11-19 05:03:30,789 INFO L932 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 [2021-11-19 05:03:30,791 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 3 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 05:03:30,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 48 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 05:03:30,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-19 05:03:30,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-11-19 05:03:30,797 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) [2021-11-19 05:03:30,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2021-11-19 05:03:30,799 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 9 [2021-11-19 05:03:30,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:03:30,799 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2021-11-19 05:03:30,800 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) [2021-11-19 05:03:30,800 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2021-11-19 05:03:30,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-19 05:03:30,801 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:03:30,801 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:03:30,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 05:03:31,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:03:31,024 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, expandArrayErr0REQUIRES_VIOLATION, expandArrayErr1REQUIRES_VIOLATION] === [2021-11-19 05:03:31,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:03:31,025 INFO L85 PathProgramCache]: Analyzing trace with hash -285526799, now seen corresponding path program 1 times [2021-11-19 05:03:31,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:03:31,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [710470056] [2021-11-19 05:03:31,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:03:31,027 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:03:31,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:03:31,031 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:03:31,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 05:03:31,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:03:31,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 05:03:31,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:03:31,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:03:31,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:03:31,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:03:31,818 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:03:31,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [710470056] [2021-11-19 05:03:31,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [710470056] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 05:03:31,819 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:03:31,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-19 05:03:31,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590549488] [2021-11-19 05:03:31,820 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 05:03:31,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 05:03:31,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:03:31,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 05:03:31,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-11-19 05:03:31,822 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) [2021-11-19 05:03:32,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:03:32,010 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2021-11-19 05:03:32,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 05:03:32,013 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 [2021-11-19 05:03:32,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:03:32,014 INFO L225 Difference]: With dead ends: 27 [2021-11-19 05:03:32,014 INFO L226 Difference]: Without dead ends: 27 [2021-11-19 05:03:32,015 INFO L932 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 [2021-11-19 05:03:32,016 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 30 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 05:03:32,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 62 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 05:03:32,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-11-19 05:03:32,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-11-19 05:03:32,028 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) [2021-11-19 05:03:32,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2021-11-19 05:03:32,031 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 16 [2021-11-19 05:03:32,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:03:32,032 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2021-11-19 05:03:32,033 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) [2021-11-19 05:03:32,033 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2021-11-19 05:03:32,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-19 05:03:32,036 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:03:32,036 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:03:32,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 05:03:32,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:03:32,251 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting expandArrayErr0REQUIRES_VIOLATION === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, expandArrayErr0REQUIRES_VIOLATION, expandArrayErr1REQUIRES_VIOLATION] === [2021-11-19 05:03:32,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:03:32,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1792130560, now seen corresponding path program 1 times [2021-11-19 05:03:32,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:03:32,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [126759458] [2021-11-19 05:03:32,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:03:32,253 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:03:32,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:03:32,254 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:03:32,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 05:03:32,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:03:32,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 05:03:32,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:03:32,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:03:32,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:03:32,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:03:32,602 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:03:32,602 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [126759458] [2021-11-19 05:03:32,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [126759458] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 05:03:32,603 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:03:32,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-19 05:03:32,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853240437] [2021-11-19 05:03:32,604 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 05:03:32,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 05:03:32,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:03:32,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 05:03:32,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-19 05:03:32,606 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) [2021-11-19 05:03:32,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:03:32,669 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2021-11-19 05:03:32,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 05:03:32,670 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 [2021-11-19 05:03:32,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:03:32,674 INFO L225 Difference]: With dead ends: 35 [2021-11-19 05:03:32,674 INFO L226 Difference]: Without dead ends: 35 [2021-11-19 05:03:32,675 INFO L932 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 [2021-11-19 05:03:32,680 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 22 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 05:03:32,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 101 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 05:03:32,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-11-19 05:03:32,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 30. [2021-11-19 05:03:32,704 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) [2021-11-19 05:03:32,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2021-11-19 05:03:32,705 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 17 [2021-11-19 05:03:32,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:03:32,706 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2021-11-19 05:03:32,706 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) [2021-11-19 05:03:32,707 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2021-11-19 05:03:32,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-19 05:03:32,708 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:03:32,709 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:03:32,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 05:03:32,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:03:32,926 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting expandArrayErr0REQUIRES_VIOLATION === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, expandArrayErr0REQUIRES_VIOLATION, expandArrayErr1REQUIRES_VIOLATION] === [2021-11-19 05:03:32,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:03:32,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1793054081, now seen corresponding path program 1 times [2021-11-19 05:03:32,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:03:32,929 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1207068163] [2021-11-19 05:03:32,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:03:32,929 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:03:32,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:03:32,933 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:03:32,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 05:03:33,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:03:33,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 05:03:33,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:03:33,151 INFO L354 Elim1Store]: treesize reduction 10, result has 50.0 percent of original size [2021-11-19 05:03:33,152 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 [2021-11-19 05:03:33,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:03:33,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:03:33,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:03:33,300 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:03:33,300 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1207068163] [2021-11-19 05:03:33,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1207068163] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 05:03:33,300 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:03:33,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-19 05:03:33,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974260346] [2021-11-19 05:03:33,301 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 05:03:33,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 05:03:33,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:03:33,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 05:03:33,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 05:03:33,304 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) [2021-11-19 05:03:33,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:03:33,392 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2021-11-19 05:03:33,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 05:03:33,398 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 [2021-11-19 05:03:33,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:03:33,400 INFO L225 Difference]: With dead ends: 29 [2021-11-19 05:03:33,400 INFO L226 Difference]: Without dead ends: 29 [2021-11-19 05:03:33,400 INFO L932 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 [2021-11-19 05:03:33,401 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 6 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 05:03:33,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 65 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 05:03:33,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-11-19 05:03:33,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-11-19 05:03:33,407 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) [2021-11-19 05:03:33,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2021-11-19 05:03:33,409 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 17 [2021-11-19 05:03:33,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:03:33,414 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2021-11-19 05:03:33,414 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) [2021-11-19 05:03:33,415 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2021-11-19 05:03:33,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-19 05:03:33,416 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:03:33,416 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:03:33,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 05:03:33,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:03:33,633 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting expandArrayErr1REQUIRES_VIOLATION === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, expandArrayErr0REQUIRES_VIOLATION, expandArrayErr1REQUIRES_VIOLATION] === [2021-11-19 05:03:33,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:03:33,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1793054082, now seen corresponding path program 1 times [2021-11-19 05:03:33,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:03:33,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [198266275] [2021-11-19 05:03:33,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:03:33,634 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:03:33,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:03:33,636 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:03:33,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 05:03:33,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:03:33,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-19 05:03:33,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:03:33,860 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 [2021-11-19 05:03:34,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:03:34,015 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:03:34,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:03:34,878 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:03:34,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [198266275] [2021-11-19 05:03:34,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [198266275] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 05:03:34,878 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:03:34,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-11-19 05:03:34,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750899773] [2021-11-19 05:03:34,879 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 05:03:34,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 05:03:34,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:03:34,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 05:03:34,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-11-19 05:03:34,882 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) [2021-11-19 05:03:36,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:03:36,800 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2021-11-19 05:03:36,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-19 05:03:36,802 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 [2021-11-19 05:03:36,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:03:36,803 INFO L225 Difference]: With dead ends: 76 [2021-11-19 05:03:36,803 INFO L226 Difference]: Without dead ends: 74 [2021-11-19 05:03:36,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2021-11-19 05:03:36,805 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 61 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-19 05:03:36,805 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 105 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-19 05:03:36,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-11-19 05:03:36,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 48. [2021-11-19 05:03:36,811 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) [2021-11-19 05:03:36,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2021-11-19 05:03:36,813 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 17 [2021-11-19 05:03:36,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:03:36,813 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2021-11-19 05:03:36,814 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) [2021-11-19 05:03:36,814 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2021-11-19 05:03:36,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-19 05:03:36,815 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:03:36,815 INFO L514 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] [2021-11-19 05:03:36,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 05:03:37,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:03:37,028 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, expandArrayErr0REQUIRES_VIOLATION, expandArrayErr1REQUIRES_VIOLATION] === [2021-11-19 05:03:37,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:03:37,029 INFO L85 PathProgramCache]: Analyzing trace with hash 494948438, now seen corresponding path program 1 times [2021-11-19 05:03:37,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:03:37,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1257374400] [2021-11-19 05:03:37,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:03:37,030 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:03:37,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:03:37,031 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:03:37,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 05:03:37,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:03:37,220 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:03:37,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:03:37,371 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-11-19 05:03:37,371 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 05:03:37,372 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK (2 of 3 remaining) [2021-11-19 05:03:37,375 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location expandArrayErr0REQUIRES_VIOLATION (1 of 3 remaining) [2021-11-19 05:03:37,375 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location expandArrayErr1REQUIRES_VIOLATION (0 of 3 remaining) [2021-11-19 05:03:37,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 05:03:37,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:03:37,590 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:03:37,593 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 05:03:37,611 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-11-19 05:03:37,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:03:37 BoogieIcfgContainer [2021-11-19 05:03:37,635 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 05:03:37,636 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 05:03:37,636 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 05:03:37,636 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 05:03:37,637 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:03:29" (3/4) ... [2021-11-19 05:03:37,641 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 05:03:37,641 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 05:03:37,642 INFO L158 Benchmark]: Toolchain (without parser) took 9751.63ms. Allocated memory was 54.5MB in the beginning and 81.8MB in the end (delta: 27.3MB). Free memory was 30.5MB in the beginning and 35.6MB in the end (delta: -5.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-11-19 05:03:37,642 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 54.5MB. Free memory is still 34.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:03:37,643 INFO L158 Benchmark]: CACSL2BoogieTranslator took 780.18ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 30.2MB in the beginning and 40.4MB in the end (delta: -10.2MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2021-11-19 05:03:37,644 INFO L158 Benchmark]: Boogie Preprocessor took 113.66ms. Allocated memory is still 67.1MB. Free memory was 40.4MB in the beginning and 37.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-19 05:03:37,644 INFO L158 Benchmark]: RCFGBuilder took 748.51ms. Allocated memory is still 67.1MB. Free memory was 37.6MB in the beginning and 32.1MB in the end (delta: 5.5MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2021-11-19 05:03:37,645 INFO L158 Benchmark]: TraceAbstraction took 8084.99ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 31.7MB in the beginning and 35.6MB in the end (delta: -4.0MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2021-11-19 05:03:37,645 INFO L158 Benchmark]: Witness Printer took 5.62ms. Allocated memory is still 81.8MB. Free memory is still 35.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:03:37,648 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 54.5MB. Free memory is still 34.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 780.18ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 30.2MB in the beginning and 40.4MB in the end (delta: -10.2MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 113.66ms. Allocated memory is still 67.1MB. Free memory was 40.4MB in the beginning and 37.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 748.51ms. Allocated memory is still 67.1MB. Free memory was 37.6MB in the beginning and 32.1MB in the end (delta: 5.5MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * TraceAbstraction took 8084.99ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 31.7MB in the beginning and 35.6MB in the end (delta: -4.0MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * Witness Printer took 5.62ms. Allocated memory is still 81.8MB. Free memory is still 35.6MB. There was no memory consumed. Max. memory is 16.1GB. * 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: 8.0s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 137 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 130 mSDsluCounter, 422 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 277 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 280 IncrementalHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 145 mSDtfsCounter, 280 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 172 GetRequests, 134 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.9s 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: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 36 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 108 NumberOfCodeBlocks, 108 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 156 ConstructedInterpolants, 0 QuantifiedInterpolants, 581 SizeOfPredicates, 7 NumberOfNonLiveVariables, 470 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 [2021-11-19 05:03:37,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3b1dbac-0152-42f1-a9c4-42191238c8b1/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample