./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_21b13c54-b278-49d0-b18b-33e13fe6d4ab/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_21b13c54-b278-49d0-b18b-33e13fe6d4ab/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_21b13c54-b278-49d0-b18b-33e13fe6d4ab/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_21b13c54-b278-49d0-b18b-33e13fe6d4ab/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_21b13c54-b278-49d0-b18b-33e13fe6d4ab/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_21b13c54-b278-49d0-b18b-33e13fe6d4ab/bin/uautomizer --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 8fdeb5a608a809e67439a428636d313b7ceb3d25 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_21b13c54-b278-49d0-b18b-33e13fe6d4ab/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_21b13c54-b278-49d0-b18b-33e13fe6d4ab/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_21b13c54-b278-49d0-b18b-33e13fe6d4ab/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_21b13c54-b278-49d0-b18b-33e13fe6d4ab/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_21b13c54-b278-49d0-b18b-33e13fe6d4ab/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_21b13c54-b278-49d0-b18b-33e13fe6d4ab/bin/uautomizer --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 8fdeb5a608a809e67439a428636d313b7ceb3d25 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 14:59:13,661 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 14:59:13,664 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 14:59:13,768 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 14:59:13,770 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 14:59:13,777 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 14:59:13,781 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 14:59:13,789 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 14:59:13,793 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 14:59:13,797 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 14:59:13,799 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 14:59:13,803 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 14:59:13,804 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 14:59:13,814 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 14:59:13,816 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 14:59:13,818 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 14:59:13,821 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 14:59:13,823 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 14:59:13,832 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 14:59:13,835 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 14:59:13,843 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 14:59:13,845 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 14:59:13,848 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 14:59:13,850 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 14:59:13,859 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 14:59:13,865 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 14:59:13,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 14:59:13,868 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 14:59:13,870 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 14:59:13,872 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 14:59:13,872 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 14:59:13,874 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 14:59:13,877 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 14:59:13,880 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 14:59:13,882 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 14:59:13,882 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 14:59:13,883 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 14:59:13,884 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 14:59:13,884 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 14:59:13,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 14:59:13,887 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 14:59:13,888 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_21b13c54-b278-49d0-b18b-33e13fe6d4ab/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-12-01 14:59:13,942 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 14:59:13,942 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 14:59:13,945 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 14:59:13,946 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 14:59:13,946 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 14:59:13,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 14:59:13,947 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 14:59:13,947 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 14:59:13,947 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 14:59:13,948 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 14:59:13,949 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 14:59:13,949 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-01 14:59:13,950 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-01 14:59:13,950 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-01 14:59:13,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 14:59:13,951 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-01 14:59:13,951 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 14:59:13,951 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 14:59:13,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 14:59:13,952 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 14:59:13,952 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 14:59:13,952 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 14:59:13,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 14:59:13,953 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 14:59:13,953 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 14:59:13,953 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 14:59:13,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 14:59:13,954 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 14:59:13,954 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-vcloud-master/worker/run_dir_21b13c54-b278-49d0-b18b-33e13fe6d4ab/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_21b13c54-b278-49d0-b18b-33e13fe6d4ab/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fdeb5a608a809e67439a428636d313b7ceb3d25 [2020-12-01 14:59:14,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 14:59:14,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 14:59:14,399 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 14:59:14,401 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 14:59:14,402 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 14:59:14,404 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_21b13c54-b278-49d0-b18b-33e13fe6d4ab/bin/uautomizer/../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2020-12-01 14:59:14,514 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_21b13c54-b278-49d0-b18b-33e13fe6d4ab/bin/uautomizer/data/c264c52dc/d75e96b9a0bb42f4a0731b47bae0d366/FLAG2b1d42022 [2020-12-01 14:59:15,144 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 14:59:15,145 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_21b13c54-b278-49d0-b18b-33e13fe6d4ab/sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2020-12-01 14:59:15,164 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_21b13c54-b278-49d0-b18b-33e13fe6d4ab/bin/uautomizer/data/c264c52dc/d75e96b9a0bb42f4a0731b47bae0d366/FLAG2b1d42022 [2020-12-01 14:59:15,384 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_21b13c54-b278-49d0-b18b-33e13fe6d4ab/bin/uautomizer/data/c264c52dc/d75e96b9a0bb42f4a0731b47bae0d366 [2020-12-01 14:59:15,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 14:59:15,389 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-12-01 14:59:15,398 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 14:59:15,399 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 14:59:15,403 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 14:59:15,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 02:59:15" (1/1) ... [2020-12-01 14:59:15,409 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10261409 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:59:15, skipping insertion in model container [2020-12-01 14:59:15,409 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 02:59:15" (1/1) ... [2020-12-01 14:59:15,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 14:59:15,493 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 14:59:15,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 14:59:15,879 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 14:59:15,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 14:59:16,003 INFO L208 MainTranslator]: Completed translation [2020-12-01 14:59:16,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:59:16 WrapperNode [2020-12-01 14:59:16,006 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 14:59:16,008 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 14:59:16,008 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 14:59:16,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 14:59:16,024 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:59:16" (1/1) ... [2020-12-01 14:59:16,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:59:16" (1/1) ... [2020-12-01 14:59:16,058 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:59:16" (1/1) ... [2020-12-01 14:59:16,061 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:59:16" (1/1) ... [2020-12-01 14:59:16,081 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:59:16" (1/1) ... [2020-12-01 14:59:16,083 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:59:16" (1/1) ... [2020-12-01 14:59:16,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:59:16" (1/1) ... [2020-12-01 14:59:16,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 14:59:16,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 14:59:16,094 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 14:59:16,094 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 14:59:16,095 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:59:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_21b13c54-b278-49d0-b18b-33e13fe6d4ab/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 14:59:16,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-12-01 14:59:16,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 14:59:16,186 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-12-01 14:59:16,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-12-01 14:59:16,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-12-01 14:59:16,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-12-01 14:59:16,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-12-01 14:59:16,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-12-01 14:59:16,188 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-12-01 14:59:16,188 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-12-01 14:59:16,189 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-12-01 14:59:16,190 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-12-01 14:59:16,190 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-12-01 14:59:16,190 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-12-01 14:59:16,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 14:59:16,191 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-12-01 14:59:16,194 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-12-01 14:59:16,194 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-12-01 14:59:16,194 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-12-01 14:59:16,195 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-12-01 14:59:16,195 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-12-01 14:59:16,195 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-12-01 14:59:16,196 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-12-01 14:59:16,196 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-12-01 14:59:16,196 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-12-01 14:59:16,196 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-12-01 14:59:16,197 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-12-01 14:59:16,197 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-12-01 14:59:16,197 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-12-01 14:59:16,197 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-12-01 14:59:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-12-01 14:59:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-12-01 14:59:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-12-01 14:59:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-12-01 14:59:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-12-01 14:59:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-12-01 14:59:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-12-01 14:59:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-12-01 14:59:16,200 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-12-01 14:59:16,200 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-12-01 14:59:16,200 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-12-01 14:59:16,200 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-12-01 14:59:16,201 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-12-01 14:59:16,201 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-12-01 14:59:16,201 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-12-01 14:59:16,201 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-12-01 14:59:16,202 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-12-01 14:59:16,202 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-12-01 14:59:16,202 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-12-01 14:59:16,202 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-12-01 14:59:16,203 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-12-01 14:59:16,203 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-12-01 14:59:16,203 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-12-01 14:59:16,203 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-12-01 14:59:16,204 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-12-01 14:59:16,204 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-12-01 14:59:16,205 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-12-01 14:59:16,206 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-12-01 14:59:16,206 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-12-01 14:59:16,207 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-12-01 14:59:16,207 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-12-01 14:59:16,208 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-12-01 14:59:16,208 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-12-01 14:59:16,208 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-12-01 14:59:16,209 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-12-01 14:59:16,209 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-12-01 14:59:16,209 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-12-01 14:59:16,209 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-12-01 14:59:16,210 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-12-01 14:59:16,210 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-12-01 14:59:16,211 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-12-01 14:59:16,211 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-12-01 14:59:16,213 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-12-01 14:59:16,213 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-12-01 14:59:16,214 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-12-01 14:59:16,214 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-12-01 14:59:16,214 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-12-01 14:59:16,215 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-12-01 14:59:16,215 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-12-01 14:59:16,215 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-12-01 14:59:16,216 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-12-01 14:59:16,216 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-12-01 14:59:16,216 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-12-01 14:59:16,216 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-12-01 14:59:16,216 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-12-01 14:59:16,217 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-12-01 14:59:16,217 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-12-01 14:59:16,218 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-12-01 14:59:16,218 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-12-01 14:59:16,219 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-12-01 14:59:16,219 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-12-01 14:59:16,219 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-12-01 14:59:16,219 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-12-01 14:59:16,220 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-12-01 14:59:16,220 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-12-01 14:59:16,220 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-12-01 14:59:16,220 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-12-01 14:59:16,221 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-12-01 14:59:16,221 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-12-01 14:59:16,221 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-12-01 14:59:16,221 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-12-01 14:59:16,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-12-01 14:59:16,222 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-12-01 14:59:16,222 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-12-01 14:59:16,222 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-12-01 14:59:16,223 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-12-01 14:59:16,223 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-12-01 14:59:16,223 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-12-01 14:59:16,224 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-12-01 14:59:16,224 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-12-01 14:59:16,224 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-12-01 14:59:16,224 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-12-01 14:59:16,225 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-12-01 14:59:16,225 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-12-01 14:59:16,225 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-12-01 14:59:16,226 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-12-01 14:59:16,226 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-12-01 14:59:16,226 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-12-01 14:59:16,227 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-12-01 14:59:16,227 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-12-01 14:59:16,227 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-12-01 14:59:16,227 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-12-01 14:59:16,228 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-12-01 14:59:16,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-01 14:59:16,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-01 14:59:16,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 14:59:16,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 14:59:16,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 14:59:16,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-12-01 14:59:16,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 14:59:16,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 14:59:16,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-01 14:59:17,083 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 14:59:17,084 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-12-01 14:59:17,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:59:17 BoogieIcfgContainer [2020-12-01 14:59:17,087 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 14:59:17,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 14:59:17,090 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 14:59:17,095 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 14:59:17,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 02:59:15" (1/3) ... [2020-12-01 14:59:17,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b18c3ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 02:59:17, skipping insertion in model container [2020-12-01 14:59:17,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:59:16" (2/3) ... [2020-12-01 14:59:17,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b18c3ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 02:59:17, skipping insertion in model container [2020-12-01 14:59:17,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:59:17" (3/3) ... [2020-12-01 14:59:17,110 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158_1-2.i [2020-12-01 14:59:17,132 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 14:59:17,137 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-12-01 14:59:17,151 INFO L253 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-12-01 14:59:17,191 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 14:59:17,191 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-01 14:59:17,191 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 14:59:17,191 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 14:59:17,192 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 14:59:17,192 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 14:59:17,192 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 14:59:17,192 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 14:59:17,215 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-12-01 14:59:17,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 14:59:17,230 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:59:17,231 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:59:17,231 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2020-12-01 14:59:17,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:59:17,242 INFO L82 PathProgramCache]: Analyzing trace with hash 349376891, now seen corresponding path program 1 times [2020-12-01 14:59:17,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:59:17,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037035681] [2020-12-01 14:59:17,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:59:17,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:59:17,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-12-01 14:59:17,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:59:17,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:59:17,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037035681] [2020-12-01 14:59:17,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:59:17,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:59:17,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248868013] [2020-12-01 14:59:17,698 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 14:59:17,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:59:17,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 14:59:17,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-01 14:59:17,727 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 4 states. [2020-12-01 14:59:17,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:59:17,849 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2020-12-01 14:59:17,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 14:59:17,851 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-12-01 14:59:17,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:59:17,861 INFO L225 Difference]: With dead ends: 25 [2020-12-01 14:59:17,862 INFO L226 Difference]: Without dead ends: 22 [2020-12-01 14:59:17,864 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-01 14:59:17,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-12-01 14:59:17,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-12-01 14:59:17,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-12-01 14:59:17,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-12-01 14:59:17,908 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 7 [2020-12-01 14:59:17,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:59:17,909 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-12-01 14:59:17,909 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 14:59:17,909 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-12-01 14:59:17,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 14:59:17,910 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:59:17,910 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:59:17,911 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 14:59:17,911 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2020-12-01 14:59:17,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:59:17,912 INFO L82 PathProgramCache]: Analyzing trace with hash 349376892, now seen corresponding path program 1 times [2020-12-01 14:59:17,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:59:17,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844380765] [2020-12-01 14:59:17,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:59:17,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:59:18,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-12-01 14:59:18,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:59:18,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:59:18,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844380765] [2020-12-01 14:59:18,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:59:18,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 14:59:18,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174552163] [2020-12-01 14:59:18,055 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 14:59:18,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:59:18,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 14:59:18,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-01 14:59:18,056 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 4 states. [2020-12-01 14:59:18,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:59:18,117 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2020-12-01 14:59:18,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 14:59:18,118 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-12-01 14:59:18,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:59:18,119 INFO L225 Difference]: With dead ends: 17 [2020-12-01 14:59:18,120 INFO L226 Difference]: Without dead ends: 17 [2020-12-01 14:59:18,121 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-01 14:59:18,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-12-01 14:59:18,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-12-01 14:59:18,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-12-01 14:59:18,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2020-12-01 14:59:18,125 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 7 [2020-12-01 14:59:18,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:59:18,126 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2020-12-01 14:59:18,126 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 14:59:18,126 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-12-01 14:59:18,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 14:59:18,127 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:59:18,127 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:59:18,127 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 14:59:18,128 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2020-12-01 14:59:18,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:59:18,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1583269800, now seen corresponding path program 1 times [2020-12-01 14:59:18,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:59:18,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251325009] [2020-12-01 14:59:18,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:59:18,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:59:18,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-12-01 14:59:18,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:59:18,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:59:18,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251325009] [2020-12-01 14:59:18,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:59:18,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-01 14:59:18,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550193357] [2020-12-01 14:59:18,239 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-01 14:59:18,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:59:18,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 14:59:18,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 14:59:18,241 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 5 states. [2020-12-01 14:59:18,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:59:18,322 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2020-12-01 14:59:18,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 14:59:18,323 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-12-01 14:59:18,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:59:18,324 INFO L225 Difference]: With dead ends: 21 [2020-12-01 14:59:18,324 INFO L226 Difference]: Without dead ends: 21 [2020-12-01 14:59:18,325 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-01 14:59:18,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-12-01 14:59:18,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2020-12-01 14:59:18,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-12-01 14:59:18,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2020-12-01 14:59:18,330 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 14 [2020-12-01 14:59:18,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:59:18,331 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2020-12-01 14:59:18,331 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-01 14:59:18,331 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2020-12-01 14:59:18,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 14:59:18,332 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:59:18,332 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:59:18,332 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-01 14:59:18,333 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2020-12-01 14:59:18,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:59:18,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1731033160, now seen corresponding path program 1 times [2020-12-01 14:59:18,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:59:18,334 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668110889] [2020-12-01 14:59:18,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:59:18,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:59:18,362 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:59:18,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:59:18,386 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:59:18,416 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 14:59:18,416 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 14:59:18,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-01 14:59:18,442 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2020-12-01 14:59:18,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 02:59:18 BoogieIcfgContainer [2020-12-01 14:59:18,457 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 14:59:18,458 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 14:59:18,458 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 14:59:18,458 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 14:59:18,459 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:59:17" (3/4) ... [2020-12-01 14:59:18,463 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 14:59:18,463 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 14:59:18,465 INFO L168 Benchmark]: Toolchain (without parser) took 3075.17 ms. Allocated memory was 88.1 MB in the beginning and 115.3 MB in the end (delta: 27.3 MB). Free memory was 53.3 MB in the beginning and 53.2 MB in the end (delta: 40.8 kB). Peak memory consumption was 25.4 MB. Max. memory is 16.1 GB. [2020-12-01 14:59:18,466 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 88.1 MB. Free memory was 58.1 MB in the beginning and 58.1 MB in the end (delta: 31.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 14:59:18,467 INFO L168 Benchmark]: CACSL2BoogieTranslator took 608.82 ms. Allocated memory is still 88.1 MB. Free memory was 53.1 MB in the beginning and 54.0 MB in the end (delta: -929.9 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 14:59:18,468 INFO L168 Benchmark]: Boogie Preprocessor took 85.40 ms. Allocated memory is still 88.1 MB. Free memory was 54.0 MB in the beginning and 51.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 14:59:18,469 INFO L168 Benchmark]: RCFGBuilder took 993.30 ms. Allocated memory was 88.1 MB in the beginning and 115.3 MB in the end (delta: 27.3 MB). Free memory was 51.4 MB in the beginning and 78.8 MB in the end (delta: -27.4 MB). Peak memory consumption was 29.9 MB. Max. memory is 16.1 GB. [2020-12-01 14:59:18,469 INFO L168 Benchmark]: TraceAbstraction took 1367.76 ms. Allocated memory is still 115.3 MB. Free memory was 78.5 MB in the beginning and 53.8 MB in the end (delta: 24.7 MB). Peak memory consumption was 25.3 MB. Max. memory is 16.1 GB. [2020-12-01 14:59:18,470 INFO L168 Benchmark]: Witness Printer took 5.58 ms. Allocated memory is still 115.3 MB. Free memory was 53.8 MB in the beginning and 53.2 MB in the end (delta: 552.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 14:59:18,474 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 88.1 MB. Free memory was 58.1 MB in the beginning and 58.1 MB in the end (delta: 31.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 608.82 ms. Allocated memory is still 88.1 MB. Free memory was 53.1 MB in the beginning and 54.0 MB in the end (delta: -929.9 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 85.40 ms. Allocated memory is still 88.1 MB. Free memory was 54.0 MB in the beginning and 51.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 993.30 ms. Allocated memory was 88.1 MB in the beginning and 115.3 MB in the end (delta: 27.3 MB). Free memory was 51.4 MB in the beginning and 78.8 MB in the end (delta: -27.4 MB). Peak memory consumption was 29.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1367.76 ms. Allocated memory is still 115.3 MB. Free memory was 78.5 MB in the beginning and 53.8 MB in the end (delta: 24.7 MB). Peak memory consumption was 25.3 MB. Max. memory is 16.1 GB. * Witness Printer took 5.58 ms. Allocated memory is still 115.3 MB. Free memory was 53.8 MB in the beginning and 53.2 MB in the end (delta: 552.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 524]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 524. Possible FailurePath: [L526-L533] union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; [L534] data.p0 = malloc(37U) VAL [data={3:0}, malloc(37U)={-1:0}] [L535] COND FALSE !(__VERIFIER_nondet_int()) [L538] data.str.p2 = 30 VAL [data={3:0}, malloc(37U)={-1:0}] [L540] EXPR data.str.p2 VAL [data={3:0}, data.str.p2=30, malloc(37U)={-1:0}] [L540] COND FALSE !(25 > data.str.p2) [L543] return 0; [L543] return 0; VAL [\result=0, malloc(37U)={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 50 locations, 12 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 36 SDtfs, 26 SDslu, 41 SDs, 0 SdLazy, 97 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 1043 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-69874e2 [2020-12-01 14:59:21,424 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 14:59:21,428 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 14:59:21,499 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 14:59:21,500 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 14:59:21,507 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 14:59:21,510 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 14:59:21,515 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 14:59:21,519 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 14:59:21,527 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 14:59:21,529 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 14:59:21,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 14:59:21,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 14:59:21,542 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 14:59:21,544 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 14:59:21,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 14:59:21,548 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 14:59:21,553 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 14:59:21,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 14:59:21,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 14:59:21,567 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 14:59:21,569 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 14:59:21,571 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 14:59:21,574 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 14:59:21,581 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 14:59:21,581 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 14:59:21,582 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 14:59:21,584 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 14:59:21,585 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 14:59:21,586 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 14:59:21,587 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 14:59:21,588 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 14:59:21,591 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 14:59:21,592 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 14:59:21,593 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 14:59:21,593 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 14:59:21,595 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 14:59:21,595 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 14:59:21,595 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 14:59:21,597 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 14:59:21,598 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 14:59:21,600 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_21b13c54-b278-49d0-b18b-33e13fe6d4ab/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-12-01 14:59:21,649 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 14:59:21,649 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 14:59:21,653 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 14:59:21,653 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 14:59:21,653 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 14:59:21,654 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 14:59:21,654 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 14:59:21,654 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 14:59:21,655 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 14:59:21,655 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 14:59:21,656 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 14:59:21,656 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-01 14:59:21,657 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-01 14:59:21,657 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-01 14:59:21,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 14:59:21,657 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-01 14:59:21,658 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-01 14:59:21,658 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-01 14:59:21,658 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 14:59:21,658 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 14:59:21,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 14:59:21,659 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 14:59:21,659 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 14:59:21,659 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 14:59:21,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 14:59:21,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 14:59:21,660 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 14:59:21,660 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-01 14:59:21,661 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-01 14:59:21,661 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 14:59:21,661 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-01 14:59:21,661 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-vcloud-master/worker/run_dir_21b13c54-b278-49d0-b18b-33e13fe6d4ab/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_21b13c54-b278-49d0-b18b-33e13fe6d4ab/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fdeb5a608a809e67439a428636d313b7ceb3d25 [2020-12-01 14:59:22,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 14:59:22,173 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 14:59:22,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 14:59:22,180 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 14:59:22,181 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 14:59:22,182 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_21b13c54-b278-49d0-b18b-33e13fe6d4ab/bin/uautomizer/../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2020-12-01 14:59:22,283 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_21b13c54-b278-49d0-b18b-33e13fe6d4ab/bin/uautomizer/data/537cfc11c/f5a7b795c22f4cf1b95a3735c9ca4d81/FLAG748a95bf9 [2020-12-01 14:59:23,151 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 14:59:23,152 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_21b13c54-b278-49d0-b18b-33e13fe6d4ab/sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2020-12-01 14:59:23,168 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_21b13c54-b278-49d0-b18b-33e13fe6d4ab/bin/uautomizer/data/537cfc11c/f5a7b795c22f4cf1b95a3735c9ca4d81/FLAG748a95bf9 [2020-12-01 14:59:23,370 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_21b13c54-b278-49d0-b18b-33e13fe6d4ab/bin/uautomizer/data/537cfc11c/f5a7b795c22f4cf1b95a3735c9ca4d81 [2020-12-01 14:59:23,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 14:59:23,376 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-12-01 14:59:23,378 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 14:59:23,378 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 14:59:23,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 14:59:23,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 02:59:23" (1/1) ... [2020-12-01 14:59:23,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a94ea58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:59:23, skipping insertion in model container [2020-12-01 14:59:23,388 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 02:59:23" (1/1) ... [2020-12-01 14:59:23,398 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 14:59:23,442 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 14:59:23,932 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 14:59:23,953 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 14:59:24,042 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 14:59:24,134 INFO L208 MainTranslator]: Completed translation [2020-12-01 14:59:24,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:59:24 WrapperNode [2020-12-01 14:59:24,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 14:59:24,137 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 14:59:24,137 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 14:59:24,140 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 14:59:24,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:59:24" (1/1) ... [2020-12-01 14:59:24,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:59:24" (1/1) ... [2020-12-01 14:59:24,186 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:59:24" (1/1) ... [2020-12-01 14:59:24,187 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:59:24" (1/1) ... [2020-12-01 14:59:24,210 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:59:24" (1/1) ... [2020-12-01 14:59:24,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:59:24" (1/1) ... [2020-12-01 14:59:24,218 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:59:24" (1/1) ... [2020-12-01 14:59:24,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 14:59:24,235 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 14:59:24,236 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 14:59:24,236 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 14:59:24,237 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:59:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_21b13c54-b278-49d0-b18b-33e13fe6d4ab/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 14:59:24,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-12-01 14:59:24,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 14:59:24,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-12-01 14:59:24,324 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-12-01 14:59:24,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-12-01 14:59:24,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-12-01 14:59:24,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-12-01 14:59:24,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-12-01 14:59:24,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-12-01 14:59:24,326 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-12-01 14:59:24,327 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-12-01 14:59:24,327 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-12-01 14:59:24,327 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-12-01 14:59:24,328 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-12-01 14:59:24,328 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-12-01 14:59:24,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 14:59:24,329 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-12-01 14:59:24,329 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-12-01 14:59:24,329 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-12-01 14:59:24,330 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-12-01 14:59:24,330 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-12-01 14:59:24,330 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-12-01 14:59:24,330 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-12-01 14:59:24,330 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-12-01 14:59:24,330 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-12-01 14:59:24,331 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-12-01 14:59:24,331 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-12-01 14:59:24,331 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-12-01 14:59:24,331 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-12-01 14:59:24,331 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-12-01 14:59:24,331 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-12-01 14:59:24,331 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-12-01 14:59:24,332 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-12-01 14:59:24,332 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-12-01 14:59:24,332 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-12-01 14:59:24,332 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-12-01 14:59:24,332 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-12-01 14:59:24,332 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-12-01 14:59:24,333 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-12-01 14:59:24,333 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-12-01 14:59:24,333 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-12-01 14:59:24,333 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-12-01 14:59:24,333 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-12-01 14:59:24,333 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-12-01 14:59:24,333 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-12-01 14:59:24,334 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-12-01 14:59:24,334 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-12-01 14:59:24,334 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-12-01 14:59:24,335 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-12-01 14:59:24,335 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-12-01 14:59:24,335 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-12-01 14:59:24,336 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-12-01 14:59:24,336 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-12-01 14:59:24,337 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-12-01 14:59:24,337 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-12-01 14:59:24,337 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-12-01 14:59:24,337 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-12-01 14:59:24,338 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-12-01 14:59:24,338 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-12-01 14:59:24,338 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-12-01 14:59:24,338 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-12-01 14:59:24,339 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-12-01 14:59:24,339 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-12-01 14:59:24,339 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-12-01 14:59:24,339 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-12-01 14:59:24,339 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-12-01 14:59:24,340 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-12-01 14:59:24,340 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-12-01 14:59:24,341 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-12-01 14:59:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-12-01 14:59:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-12-01 14:59:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-12-01 14:59:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-12-01 14:59:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-12-01 14:59:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-12-01 14:59:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-12-01 14:59:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-12-01 14:59:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-12-01 14:59:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-12-01 14:59:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-12-01 14:59:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-12-01 14:59:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-12-01 14:59:24,346 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-12-01 14:59:24,347 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-12-01 14:59:24,347 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-12-01 14:59:24,347 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-12-01 14:59:24,347 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-12-01 14:59:24,347 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-12-01 14:59:24,347 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-12-01 14:59:24,348 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-12-01 14:59:24,348 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-12-01 14:59:24,348 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-12-01 14:59:24,348 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-12-01 14:59:24,348 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-12-01 14:59:24,348 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-12-01 14:59:24,348 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-12-01 14:59:24,349 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-12-01 14:59:24,349 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-12-01 14:59:24,349 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-12-01 14:59:24,349 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-12-01 14:59:24,349 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-12-01 14:59:24,349 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-12-01 14:59:24,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-12-01 14:59:24,350 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-12-01 14:59:24,350 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-12-01 14:59:24,350 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-12-01 14:59:24,350 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-12-01 14:59:24,350 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-12-01 14:59:24,350 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-12-01 14:59:24,350 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-12-01 14:59:24,351 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-12-01 14:59:24,351 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-12-01 14:59:24,351 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-12-01 14:59:24,351 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-12-01 14:59:24,352 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-12-01 14:59:24,353 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-12-01 14:59:24,353 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-12-01 14:59:24,353 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-12-01 14:59:24,353 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-12-01 14:59:24,354 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-12-01 14:59:24,354 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-12-01 14:59:24,354 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-12-01 14:59:24,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-12-01 14:59:24,354 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-12-01 14:59:24,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-01 14:59:24,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-01 14:59:24,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-01 14:59:24,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-01 14:59:24,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2020-12-01 14:59:24,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 14:59:24,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-12-01 14:59:24,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-01 14:59:24,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 14:59:24,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-12-01 14:59:24,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2020-12-01 14:59:24,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-01 14:59:25,120 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 14:59:25,138 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-12-01 14:59:25,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:59:25 BoogieIcfgContainer [2020-12-01 14:59:25,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 14:59:25,144 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 14:59:25,145 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 14:59:25,149 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 14:59:25,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 02:59:23" (1/3) ... [2020-12-01 14:59:25,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d9b49c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 02:59:25, skipping insertion in model container [2020-12-01 14:59:25,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:59:24" (2/3) ... [2020-12-01 14:59:25,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d9b49c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 02:59:25, skipping insertion in model container [2020-12-01 14:59:25,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:59:25" (3/3) ... [2020-12-01 14:59:25,156 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158_1-2.i [2020-12-01 14:59:25,176 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 14:59:25,183 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-12-01 14:59:25,198 INFO L253 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-12-01 14:59:25,241 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 14:59:25,241 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-01 14:59:25,241 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 14:59:25,241 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 14:59:25,242 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 14:59:25,242 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 14:59:25,242 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 14:59:25,242 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 14:59:25,256 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-12-01 14:59:25,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 14:59:25,266 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:59:25,266 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:59:25,267 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2020-12-01 14:59:25,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:59:25,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1837077008, now seen corresponding path program 1 times [2020-12-01 14:59:25,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 14:59:25,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1475479225] [2020-12-01 14:59:25,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_21b13c54-b278-49d0-b18b-33e13fe6d4ab/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-01 14:59:25,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:59:25,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 14:59:25,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 14:59:25,663 INFO L348 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2020-12-01 14:59:25,664 INFO L382 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 1 case distinctions, treesize of input 9 treesize of output 11 [2020-12-01 14:59:25,674 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 14:59:25,682 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 14:59:25,695 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-01 14:59:25,697 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:13 [2020-12-01 14:59:25,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:59:25,730 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 14:59:25,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:59:25,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1475479225] [2020-12-01 14:59:25,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:59:25,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-01 14:59:25,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271959187] [2020-12-01 14:59:25,787 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 14:59:25,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 14:59:25,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 14:59:25,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:59:25,809 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 3 states. [2020-12-01 14:59:25,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:59:25,947 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2020-12-01 14:59:25,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:59:25,949 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-12-01 14:59:25,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:59:25,958 INFO L225 Difference]: With dead ends: 24 [2020-12-01 14:59:25,958 INFO L226 Difference]: Without dead ends: 21 [2020-12-01 14:59:25,960 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 14:59:25,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-12-01 14:59:25,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-12-01 14:59:26,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-12-01 14:59:26,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-12-01 14:59:26,003 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 7 [2020-12-01 14:59:26,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:59:26,003 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-12-01 14:59:26,003 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 14:59:26,003 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-12-01 14:59:26,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 14:59:26,004 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:59:26,004 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:59:26,224 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-01 14:59:26,225 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2020-12-01 14:59:26,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:59:26,226 INFO L82 PathProgramCache]: Analyzing trace with hash -1837077007, now seen corresponding path program 1 times [2020-12-01 14:59:26,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 14:59:26,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1537470472] [2020-12-01 14:59:26,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_21b13c54-b278-49d0-b18b-33e13fe6d4ab/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-01 14:59:26,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:59:26,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 14:59:26,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 14:59:26,420 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_25|], 1=[|v_#valid_31|]} [2020-12-01 14:59:26,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-01 14:59:26,428 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2020-12-01 14:59:26,432 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 14:59:26,447 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 14:59:26,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-01 14:59:26,460 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2020-12-01 14:59:26,462 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-01 14:59:26,473 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 14:59:26,476 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-01 14:59:26,477 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:16 [2020-12-01 14:59:26,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:59:26,505 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 14:59:26,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:59:26,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1537470472] [2020-12-01 14:59:26,588 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:59:26,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-12-01 14:59:26,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112053821] [2020-12-01 14:59:26,589 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 14:59:26,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 14:59:26,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 14:59:26,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 14:59:26,591 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 4 states. [2020-12-01 14:59:26,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:59:26,684 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2020-12-01 14:59:26,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 14:59:26,685 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-12-01 14:59:26,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:59:26,686 INFO L225 Difference]: With dead ends: 16 [2020-12-01 14:59:26,686 INFO L226 Difference]: Without dead ends: 16 [2020-12-01 14:59:26,687 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 14:59:26,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-12-01 14:59:26,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-12-01 14:59:26,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-12-01 14:59:26,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2020-12-01 14:59:26,691 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 7 [2020-12-01 14:59:26,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:59:26,691 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2020-12-01 14:59:26,692 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 14:59:26,692 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-12-01 14:59:26,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 14:59:26,692 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:59:26,693 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:59:26,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-01 14:59:26,894 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2020-12-01 14:59:26,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:59:26,894 INFO L82 PathProgramCache]: Analyzing trace with hash 1961294140, now seen corresponding path program 1 times [2020-12-01 14:59:26,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 14:59:26,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1112570959] [2020-12-01 14:59:26,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_21b13c54-b278-49d0-b18b-33e13fe6d4ab/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-01 14:59:27,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:59:27,163 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:59:27,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:59:27,229 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:59:27,264 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-12-01 14:59:27,265 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 14:59:27,465 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-01 14:59:27,492 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2020-12-01 14:59:27,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 02:59:27 BoogieIcfgContainer [2020-12-01 14:59:27,505 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 14:59:27,506 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 14:59:27,506 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 14:59:27,506 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 14:59:27,507 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:59:25" (3/4) ... [2020-12-01 14:59:27,511 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 14:59:27,512 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 14:59:27,514 INFO L168 Benchmark]: Toolchain (without parser) took 4136.95 ms. Allocated memory was 50.3 MB in the beginning and 75.5 MB in the end (delta: 25.2 MB). Free memory was 26.9 MB in the beginning and 33.5 MB in the end (delta: -6.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-01 14:59:27,515 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 50.3 MB. Free memory was 33.1 MB in the beginning and 33.0 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 14:59:27,516 INFO L168 Benchmark]: CACSL2BoogieTranslator took 757.67 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 26.7 MB in the beginning and 33.7 MB in the end (delta: -7.0 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2020-12-01 14:59:27,517 INFO L168 Benchmark]: Boogie Preprocessor took 97.86 ms. Allocated memory is still 62.9 MB. Free memory was 33.5 MB in the beginning and 45.7 MB in the end (delta: -12.2 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2020-12-01 14:59:27,518 INFO L168 Benchmark]: RCFGBuilder took 906.60 ms. Allocated memory is still 62.9 MB. Free memory was 45.7 MB in the beginning and 43.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 26.9 MB. Max. memory is 16.1 GB. [2020-12-01 14:59:27,519 INFO L168 Benchmark]: TraceAbstraction took 2361.23 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 43.5 MB in the beginning and 34.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 22.3 MB. Max. memory is 16.1 GB. [2020-12-01 14:59:27,520 INFO L168 Benchmark]: Witness Printer took 6.51 ms. Allocated memory is still 75.5 MB. Free memory was 34.0 MB in the beginning and 33.5 MB in the end (delta: 555.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 14:59:27,524 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 50.3 MB. Free memory was 33.1 MB in the beginning and 33.0 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 757.67 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 26.7 MB in the beginning and 33.7 MB in the end (delta: -7.0 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 97.86 ms. Allocated memory is still 62.9 MB. Free memory was 33.5 MB in the beginning and 45.7 MB in the end (delta: -12.2 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. * RCFGBuilder took 906.60 ms. Allocated memory is still 62.9 MB. Free memory was 45.7 MB in the beginning and 43.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 26.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2361.23 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 43.5 MB in the beginning and 34.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 22.3 MB. Max. memory is 16.1 GB. * Witness Printer took 6.51 ms. Allocated memory is still 75.5 MB. Free memory was 34.0 MB in the beginning and 33.5 MB in the end (delta: 555.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 524]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 524. Possible FailurePath: [L526-L533] union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; [L534] data.p0 = malloc(37U) VAL [data={3:0}, malloc(37U)={1:0}] [L535] COND FALSE !(__VERIFIER_nondet_int()) [L538] data.str.p2 = 30 VAL [data={3:0}, malloc(37U)={1:0}] [L540] EXPR data.str.p2 VAL [data={3:0}, data.str.p2=30, malloc(37U)={1:0}] [L540] COND FALSE !(25 > data.str.p2) [L543] return 0; [L543] return 0; VAL [\result=0, malloc(37U)={1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 55 locations, 12 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 25 SDtfs, 23 SDslu, 16 SDs, 0 SdLazy, 25 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 1 QuantifiedInterpolants, 348 SizeOfPredicates, 5 NumberOfNonLiveVariables, 122 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 Received shutdown request...