./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9e741dc2-50b4-4a77-9936-2291270f4684/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9e741dc2-50b4-4a77-9936-2291270f4684/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9e741dc2-50b4-4a77-9936-2291270f4684/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9e741dc2-50b4-4a77-9936-2291270f4684/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_9e741dc2-50b4-4a77-9936-2291270f4684/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9e741dc2-50b4-4a77-9936-2291270f4684/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_9e741dc2-50b4-4a77-9936-2291270f4684/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9e741dc2-50b4-4a77-9936-2291270f4684/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9e741dc2-50b4-4a77-9936-2291270f4684/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9e741dc2-50b4-4a77-9936-2291270f4684/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_9e741dc2-50b4-4a77-9936-2291270f4684/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9e741dc2-50b4-4a77-9936-2291270f4684/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-a4ecdab [2020-11-28 03:08:58,141 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:08:58,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:08:58,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:08:58,232 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:08:58,234 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:08:58,237 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:08:58,241 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:08:58,244 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:08:58,246 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:08:58,248 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:08:58,250 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:08:58,251 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:08:58,253 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:08:58,255 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:08:58,257 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:08:58,259 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:08:58,261 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:08:58,264 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:08:58,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:08:58,271 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:08:58,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:08:58,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:08:58,277 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:08:58,282 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:08:58,283 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:08:58,284 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:08:58,286 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:08:58,286 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:08:58,288 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:08:58,289 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:08:58,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:08:58,292 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:08:58,293 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:08:58,295 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:08:58,296 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:08:58,297 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:08:58,298 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:08:58,299 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:08:58,300 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:08:58,302 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:08:58,303 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9e741dc2-50b4-4a77-9936-2291270f4684/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-11-28 03:08:58,363 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:08:58,363 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:08:58,365 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:08:58,366 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:08:58,366 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:08:58,367 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:08:58,367 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:08:58,368 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:08:58,368 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:08:58,368 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:08:58,369 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:08:58,369 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 03:08:58,370 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 03:08:58,370 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-28 03:08:58,371 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:08:58,371 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 03:08:58,372 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:08:58,372 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:08:58,376 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:08:58,377 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:08:58,377 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:08:58,377 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:08:58,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:08:58,378 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:08:58,378 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:08:58,379 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:08:58,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:08:58,379 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:08:58,380 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_9e741dc2-50b4-4a77-9936-2291270f4684/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9e741dc2-50b4-4a77-9936-2291270f4684/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fdeb5a608a809e67439a428636d313b7ceb3d25 [2020-11-28 03:08:58,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:08:58,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:08:58,778 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:08:58,780 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:08:58,782 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:08:58,785 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9e741dc2-50b4-4a77-9936-2291270f4684/bin/uautomizer/../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2020-11-28 03:08:58,908 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9e741dc2-50b4-4a77-9936-2291270f4684/bin/uautomizer/data/dbde452dc/36ae63c3d5034a3bb26fdcddf23ff887/FLAG4743773f3 [2020-11-28 03:08:59,555 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:08:59,556 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9e741dc2-50b4-4a77-9936-2291270f4684/sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2020-11-28 03:08:59,581 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9e741dc2-50b4-4a77-9936-2291270f4684/bin/uautomizer/data/dbde452dc/36ae63c3d5034a3bb26fdcddf23ff887/FLAG4743773f3 [2020-11-28 03:08:59,790 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9e741dc2-50b4-4a77-9936-2291270f4684/bin/uautomizer/data/dbde452dc/36ae63c3d5034a3bb26fdcddf23ff887 [2020-11-28 03:08:59,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:08:59,794 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-28 03:08:59,803 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:08:59,803 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:08:59,807 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:08:59,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:08:59" (1/1) ... [2020-11-28 03:08:59,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33fb809 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:59, skipping insertion in model container [2020-11-28 03:08:59,810 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:08:59" (1/1) ... [2020-11-28 03:08:59,819 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:08:59,887 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:09:00,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:09:00,278 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:09:00,336 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:09:00,396 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:09:00,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:00 WrapperNode [2020-11-28 03:09:00,397 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:09:00,398 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:09:00,398 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:09:00,399 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:09:00,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:00" (1/1) ... [2020-11-28 03:09:00,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:00" (1/1) ... [2020-11-28 03:09:00,433 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:00" (1/1) ... [2020-11-28 03:09:00,434 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:00" (1/1) ... [2020-11-28 03:09:00,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:00" (1/1) ... [2020-11-28 03:09:00,452 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:00" (1/1) ... [2020-11-28 03:09:00,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:00" (1/1) ... [2020-11-28 03:09:00,463 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:09:00,464 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:09:00,465 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:09:00,465 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:09:00,466 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e741dc2-50b4-4a77-9936-2291270f4684/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 [2020-11-28 03:09:00,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-28 03:09:00,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:09:00,561 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-28 03:09:00,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-28 03:09:00,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-28 03:09:00,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-11-28 03:09:00,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-11-28 03:09:00,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-11-28 03:09:00,564 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-28 03:09:00,564 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-28 03:09:00,565 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-28 03:09:00,566 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-28 03:09:00,566 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-28 03:09:00,566 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-28 03:09:00,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:09:00,567 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-28 03:09:00,570 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-28 03:09:00,570 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-28 03:09:00,571 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-28 03:09:00,571 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-28 03:09:00,571 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-28 03:09:00,571 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-28 03:09:00,572 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-28 03:09:00,572 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-28 03:09:00,572 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-28 03:09:00,573 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-28 03:09:00,573 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-28 03:09:00,573 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-28 03:09:00,573 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-28 03:09:00,574 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-28 03:09:00,574 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-28 03:09:00,574 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-28 03:09:00,574 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-28 03:09:00,575 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-11-28 03:09:00,575 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-11-28 03:09:00,575 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-11-28 03:09:00,575 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-28 03:09:00,576 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-28 03:09:00,576 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-28 03:09:00,576 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-28 03:09:00,576 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-28 03:09:00,577 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-28 03:09:00,577 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-28 03:09:00,577 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-28 03:09:00,578 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-28 03:09:00,578 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-28 03:09:00,578 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-28 03:09:00,578 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-28 03:09:00,579 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-28 03:09:00,579 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-28 03:09:00,579 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-28 03:09:00,580 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-28 03:09:00,580 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-28 03:09:00,580 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-28 03:09:00,581 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-28 03:09:00,581 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-28 03:09:00,582 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-28 03:09:00,583 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-28 03:09:00,583 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-28 03:09:00,583 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-28 03:09:00,583 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-28 03:09:00,584 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-28 03:09:00,584 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-28 03:09:00,584 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-28 03:09:00,584 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-28 03:09:00,585 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-28 03:09:00,585 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-28 03:09:00,585 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-28 03:09:00,585 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-28 03:09:00,586 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-28 03:09:00,586 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-28 03:09:00,587 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-28 03:09:00,589 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-28 03:09:00,589 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-28 03:09:00,590 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-28 03:09:00,590 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-28 03:09:00,590 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-28 03:09:00,590 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-28 03:09:00,591 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-28 03:09:00,591 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-28 03:09:00,591 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-28 03:09:00,591 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-28 03:09:00,592 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-28 03:09:00,592 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-28 03:09:00,592 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-28 03:09:00,592 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-28 03:09:00,593 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-28 03:09:00,594 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-28 03:09:00,594 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-28 03:09:00,594 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-28 03:09:00,595 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-28 03:09:00,595 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-28 03:09:00,595 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-28 03:09:00,596 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-28 03:09:00,596 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-28 03:09:00,596 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-28 03:09:00,596 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-28 03:09:00,597 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-28 03:09:00,597 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-28 03:09:00,597 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-28 03:09:00,597 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-28 03:09:00,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-28 03:09:00,598 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-28 03:09:00,598 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-28 03:09:00,598 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-28 03:09:00,599 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-28 03:09:00,599 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-28 03:09:00,599 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-28 03:09:00,599 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-28 03:09:00,600 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-28 03:09:00,600 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-28 03:09:00,600 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-28 03:09:00,600 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-28 03:09:00,601 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-28 03:09:00,601 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-28 03:09:00,601 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-28 03:09:00,602 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-28 03:09:00,602 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-28 03:09:00,602 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-28 03:09:00,602 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-28 03:09:00,602 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-28 03:09:00,603 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-28 03:09:00,603 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-28 03:09:00,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 03:09:00,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-28 03:09:00,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:09:00,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:09:00,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:09:00,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-28 03:09:00,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:09:00,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:09:00,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-28 03:09:01,315 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:09:01,315 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-28 03:09:01,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:09:01 BoogieIcfgContainer [2020-11-28 03:09:01,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:09:01,319 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:09:01,320 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:09:01,324 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:09:01,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:08:59" (1/3) ... [2020-11-28 03:09:01,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@338db34e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:09:01, skipping insertion in model container [2020-11-28 03:09:01,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:00" (2/3) ... [2020-11-28 03:09:01,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@338db34e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:09:01, skipping insertion in model container [2020-11-28 03:09:01,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:09:01" (3/3) ... [2020-11-28 03:09:01,328 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158_1-2.i [2020-11-28 03:09:01,341 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:09:01,346 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-11-28 03:09:01,361 INFO L253 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-11-28 03:09:01,385 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:09:01,385 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-28 03:09:01,385 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:09:01,385 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:09:01,385 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:09:01,386 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:09:01,386 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:09:01,386 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:09:01,401 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-11-28 03:09:01,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 03:09:01,409 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:01,410 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:01,410 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]=== [2020-11-28 03:09:01,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:01,417 INFO L82 PathProgramCache]: Analyzing trace with hash 349376891, now seen corresponding path program 1 times [2020-11-28 03:09:01,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:01,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546960241] [2020-11-28 03:09:01,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:01,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:01,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:09:01,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:01,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:01,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546960241] [2020-11-28 03:09:01,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:09:01,663 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:09:01,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144871366] [2020-11-28 03:09:01,669 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:09:01,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:09:01,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:09:01,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:09:01,691 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 4 states. [2020-11-28 03:09:01,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:01,824 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2020-11-28 03:09:01,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:09:01,827 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-28 03:09:01,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:01,840 INFO L225 Difference]: With dead ends: 25 [2020-11-28 03:09:01,840 INFO L226 Difference]: Without dead ends: 22 [2020-11-28 03:09:01,846 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 [2020-11-28 03:09:01,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-11-28 03:09:01,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-11-28 03:09:01,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-28 03:09:01,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-11-28 03:09:01,881 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 7 [2020-11-28 03:09:01,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:01,882 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-11-28 03:09:01,882 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:09:01,882 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-11-28 03:09:01,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 03:09:01,883 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:01,883 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:01,883 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:09:01,884 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]=== [2020-11-28 03:09:01,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:01,885 INFO L82 PathProgramCache]: Analyzing trace with hash 349376892, now seen corresponding path program 1 times [2020-11-28 03:09:01,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:01,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915715204] [2020-11-28 03:09:01,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:01,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:02,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:09:02,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:02,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:02,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915715204] [2020-11-28 03:09:02,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:09:02,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:09:02,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831928476] [2020-11-28 03:09:02,028 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:09:02,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:09:02,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:09:02,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:09:02,032 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 4 states. [2020-11-28 03:09:02,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:02,095 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2020-11-28 03:09:02,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:09:02,096 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-28 03:09:02,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:02,096 INFO L225 Difference]: With dead ends: 17 [2020-11-28 03:09:02,097 INFO L226 Difference]: Without dead ends: 17 [2020-11-28 03:09:02,097 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 [2020-11-28 03:09:02,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-11-28 03:09:02,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-11-28 03:09:02,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-28 03:09:02,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2020-11-28 03:09:02,100 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 7 [2020-11-28 03:09:02,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:02,100 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2020-11-28 03:09:02,101 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:09:02,101 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-11-28 03:09:02,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 03:09:02,101 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:02,101 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:02,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:09:02,102 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]=== [2020-11-28 03:09:02,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:02,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1583269800, now seen corresponding path program 1 times [2020-11-28 03:09:02,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:02,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483874356] [2020-11-28 03:09:02,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:02,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:02,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:09:02,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:02,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:02,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483874356] [2020-11-28 03:09:02,236 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:09:02,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:09:02,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042560956] [2020-11-28 03:09:02,237 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:09:02,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:09:02,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:09:02,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:09:02,239 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 5 states. [2020-11-28 03:09:02,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:02,337 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2020-11-28 03:09:02,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:09:02,337 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-11-28 03:09:02,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:02,338 INFO L225 Difference]: With dead ends: 21 [2020-11-28 03:09:02,339 INFO L226 Difference]: Without dead ends: 21 [2020-11-28 03:09:02,339 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 [2020-11-28 03:09:02,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-28 03:09:02,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2020-11-28 03:09:02,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-28 03:09:02,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2020-11-28 03:09:02,344 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 14 [2020-11-28 03:09:02,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:02,344 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2020-11-28 03:09:02,344 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:09:02,344 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2020-11-28 03:09:02,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 03:09:02,345 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:02,345 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:02,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:09:02,346 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]=== [2020-11-28 03:09:02,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:02,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1731033160, now seen corresponding path program 1 times [2020-11-28 03:09:02,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:02,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156425583] [2020-11-28 03:09:02,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:02,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:02,383 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:02,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:02,404 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:02,453 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:09:02,453 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:09:02,454 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:09:02,468 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2020-11-28 03:09:02,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:09:02 BoogieIcfgContainer [2020-11-28 03:09:02,481 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:09:02,482 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:09:02,482 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:09:02,482 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:09:02,483 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:09:01" (3/4) ... [2020-11-28 03:09:02,486 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:09:02,487 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:09:02,489 INFO L168 Benchmark]: Toolchain (without parser) took 2693.40 ms. Allocated memory was 113.2 MB in the beginning and 138.4 MB in the end (delta: 25.2 MB). Free memory was 78.2 MB in the beginning and 90.4 MB in the end (delta: -12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:02,490 INFO L168 Benchmark]: CDTParser took 0.89 ms. Allocated memory is still 113.2 MB. Free memory was 84.9 MB in the beginning and 84.9 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:09:02,491 INFO L168 Benchmark]: CACSL2BoogieTranslator took 594.32 ms. Allocated memory is still 113.2 MB. Free memory was 78.2 MB in the beginning and 78.6 MB in the end (delta: -402.2 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:02,492 INFO L168 Benchmark]: Boogie Preprocessor took 65.24 ms. Allocated memory is still 113.2 MB. Free memory was 78.5 MB in the beginning and 75.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:02,493 INFO L168 Benchmark]: RCFGBuilder took 853.29 ms. Allocated memory is still 113.2 MB. Free memory was 75.7 MB in the beginning and 85.9 MB in the end (delta: -10.2 MB). Peak memory consumption was 40.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:02,494 INFO L168 Benchmark]: TraceAbstraction took 1161.78 ms. Allocated memory was 113.2 MB in the beginning and 138.4 MB in the end (delta: 25.2 MB). Free memory was 85.2 MB in the beginning and 91.5 MB in the end (delta: -6.3 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:02,494 INFO L168 Benchmark]: Witness Printer took 5.10 ms. Allocated memory is still 138.4 MB. Free memory is still 90.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:09:02,498 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.89 ms. Allocated memory is still 113.2 MB. Free memory was 84.9 MB in the beginning and 84.9 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 594.32 ms. Allocated memory is still 113.2 MB. Free memory was 78.2 MB in the beginning and 78.6 MB in the end (delta: -402.2 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 65.24 ms. Allocated memory is still 113.2 MB. Free memory was 78.5 MB in the beginning and 75.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 853.29 ms. Allocated memory is still 113.2 MB. Free memory was 75.7 MB in the beginning and 85.9 MB in the end (delta: -10.2 MB). Peak memory consumption was 40.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1161.78 ms. Allocated memory was 113.2 MB in the beginning and 138.4 MB in the end (delta: 25.2 MB). Free memory was 85.2 MB in the beginning and 91.5 MB in the end (delta: -6.3 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. * Witness Printer took 5.10 ms. Allocated memory is still 138.4 MB. Free memory is still 90.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 1.0s, 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, 0.2s 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-a4ecdab [2020-11-28 03:09:05,577 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:09:05,582 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:09:05,652 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:09:05,652 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:09:05,661 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:09:05,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:09:05,670 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:09:05,675 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:09:05,685 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:09:05,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:09:05,693 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:09:05,699 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:09:05,701 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:09:05,705 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:09:05,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:09:05,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:09:05,711 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:09:05,718 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:09:05,723 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:09:05,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:09:05,734 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:09:05,736 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:09:05,738 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:09:05,743 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:09:05,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:09:05,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:09:05,749 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:09:05,749 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:09:05,751 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:09:05,752 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:09:05,753 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:09:05,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:09:05,757 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:09:05,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:09:05,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:09:05,760 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:09:05,760 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:09:05,761 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:09:05,763 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:09:05,764 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:09:05,765 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9e741dc2-50b4-4a77-9936-2291270f4684/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-11-28 03:09:05,825 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:09:05,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:09:05,830 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:09:05,830 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:09:05,830 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:09:05,831 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:09:05,831 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:09:05,831 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:09:05,832 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:09:05,832 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:09:05,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:09:05,834 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 03:09:05,834 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 03:09:05,834 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-28 03:09:05,835 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:09:05,835 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 03:09:05,835 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 03:09:05,836 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 03:09:05,836 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:09:05,836 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:09:05,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:09:05,837 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:09:05,837 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:09:05,837 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:09:05,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:09:05,838 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:09:05,838 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:09:05,839 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-28 03:09:05,856 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 03:09:05,857 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:09:05,857 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 03:09:05,857 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_9e741dc2-50b4-4a77-9936-2291270f4684/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9e741dc2-50b4-4a77-9936-2291270f4684/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fdeb5a608a809e67439a428636d313b7ceb3d25 [2020-11-28 03:09:06,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:09:06,377 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:09:06,384 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:09:06,386 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:09:06,387 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:09:06,388 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9e741dc2-50b4-4a77-9936-2291270f4684/bin/uautomizer/../../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2020-11-28 03:09:06,477 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9e741dc2-50b4-4a77-9936-2291270f4684/bin/uautomizer/data/f70d61a6e/2509af27d6a5480cbc1b0c251e3b66c9/FLAG368c9314b [2020-11-28 03:09:07,212 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:09:07,219 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9e741dc2-50b4-4a77-9936-2291270f4684/sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2020-11-28 03:09:07,238 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9e741dc2-50b4-4a77-9936-2291270f4684/bin/uautomizer/data/f70d61a6e/2509af27d6a5480cbc1b0c251e3b66c9/FLAG368c9314b [2020-11-28 03:09:07,478 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9e741dc2-50b4-4a77-9936-2291270f4684/bin/uautomizer/data/f70d61a6e/2509af27d6a5480cbc1b0c251e3b66c9 [2020-11-28 03:09:07,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:09:07,482 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-28 03:09:07,483 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:09:07,483 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:09:07,488 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:09:07,489 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:09:07" (1/1) ... [2020-11-28 03:09:07,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e867df5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:07, skipping insertion in model container [2020-11-28 03:09:07,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:09:07" (1/1) ... [2020-11-28 03:09:07,501 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:09:07,564 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:09:07,987 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:09:08,003 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:09:08,081 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:09:08,183 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:09:08,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:08 WrapperNode [2020-11-28 03:09:08,185 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:09:08,186 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:09:08,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:09:08,189 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:09:08,203 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:08" (1/1) ... [2020-11-28 03:09:08,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:08" (1/1) ... [2020-11-28 03:09:08,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:08" (1/1) ... [2020-11-28 03:09:08,245 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:08" (1/1) ... [2020-11-28 03:09:08,273 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:08" (1/1) ... [2020-11-28 03:09:08,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:08" (1/1) ... [2020-11-28 03:09:08,281 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:08" (1/1) ... [2020-11-28 03:09:08,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:09:08,298 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:09:08,298 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:09:08,299 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:09:08,300 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e741dc2-50b4-4a77-9936-2291270f4684/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 [2020-11-28 03:09:08,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-28 03:09:08,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:09:08,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-11-28 03:09:08,384 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-28 03:09:08,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-28 03:09:08,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-28 03:09:08,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-11-28 03:09:08,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-11-28 03:09:08,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-11-28 03:09:08,386 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-28 03:09:08,386 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-28 03:09:08,386 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-28 03:09:08,387 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-28 03:09:08,388 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-28 03:09:08,388 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-28 03:09:08,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:09:08,389 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-28 03:09:08,389 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-28 03:09:08,389 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-28 03:09:08,389 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-28 03:09:08,389 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-28 03:09:08,390 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-28 03:09:08,390 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-28 03:09:08,390 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-28 03:09:08,390 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-28 03:09:08,390 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-28 03:09:08,391 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-28 03:09:08,391 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-28 03:09:08,391 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-28 03:09:08,391 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-28 03:09:08,391 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-28 03:09:08,392 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-28 03:09:08,392 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-28 03:09:08,392 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-28 03:09:08,392 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-11-28 03:09:08,393 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-11-28 03:09:08,393 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-11-28 03:09:08,393 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-28 03:09:08,393 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-28 03:09:08,393 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-28 03:09:08,394 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-28 03:09:08,394 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-28 03:09:08,394 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-28 03:09:08,394 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-28 03:09:08,395 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-28 03:09:08,395 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-28 03:09:08,395 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-28 03:09:08,395 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-28 03:09:08,396 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-28 03:09:08,396 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-28 03:09:08,397 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-28 03:09:08,397 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-28 03:09:08,397 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-28 03:09:08,398 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-28 03:09:08,398 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-28 03:09:08,399 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-28 03:09:08,399 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-28 03:09:08,399 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-28 03:09:08,399 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-28 03:09:08,399 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-28 03:09:08,400 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-28 03:09:08,400 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-28 03:09:08,401 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-28 03:09:08,401 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-28 03:09:08,401 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-28 03:09:08,401 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-28 03:09:08,402 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-28 03:09:08,402 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-28 03:09:08,403 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-28 03:09:08,404 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-28 03:09:08,405 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-28 03:09:08,405 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-28 03:09:08,405 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-28 03:09:08,405 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-28 03:09:08,406 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-28 03:09:08,406 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-28 03:09:08,406 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-28 03:09:08,406 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-28 03:09:08,406 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-28 03:09:08,407 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-28 03:09:08,407 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-28 03:09:08,407 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-28 03:09:08,407 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-28 03:09:08,408 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-28 03:09:08,409 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-28 03:09:08,409 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-28 03:09:08,409 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-28 03:09:08,409 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-28 03:09:08,409 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-28 03:09:08,410 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-28 03:09:08,410 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-28 03:09:08,410 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-28 03:09:08,410 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-28 03:09:08,411 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-28 03:09:08,411 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-28 03:09:08,411 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-28 03:09:08,411 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-28 03:09:08,411 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-28 03:09:08,411 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-28 03:09:08,412 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-28 03:09:08,412 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-28 03:09:08,412 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-28 03:09:08,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-28 03:09:08,413 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-28 03:09:08,413 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-28 03:09:08,413 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-28 03:09:08,413 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-28 03:09:08,413 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-28 03:09:08,414 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-28 03:09:08,414 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-28 03:09:08,414 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-28 03:09:08,414 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-28 03:09:08,415 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-28 03:09:08,415 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-28 03:09:08,416 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-28 03:09:08,417 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-28 03:09:08,417 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-28 03:09:08,417 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-28 03:09:08,417 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-28 03:09:08,417 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-28 03:09:08,418 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-28 03:09:08,418 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-28 03:09:08,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-28 03:09:08,418 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-28 03:09:08,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 03:09:08,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-28 03:09:08,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-28 03:09:08,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-28 03:09:08,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2020-11-28 03:09:08,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:09:08,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-28 03:09:08,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 03:09:08,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:09:08,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-11-28 03:09:08,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2020-11-28 03:09:08,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-28 03:09:09,629 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:09:09,629 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-28 03:09:09,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:09:09 BoogieIcfgContainer [2020-11-28 03:09:09,631 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:09:09,633 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:09:09,633 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:09:09,637 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:09:09,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:09:07" (1/3) ... [2020-11-28 03:09:09,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10e843e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:09:09, skipping insertion in model container [2020-11-28 03:09:09,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:08" (2/3) ... [2020-11-28 03:09:09,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10e843e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:09:09, skipping insertion in model container [2020-11-28 03:09:09,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:09:09" (3/3) ... [2020-11-28 03:09:09,640 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158_1-2.i [2020-11-28 03:09:09,652 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:09:09,657 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-11-28 03:09:09,671 INFO L253 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-11-28 03:09:09,694 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:09:09,694 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-28 03:09:09,694 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:09:09,695 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:09:09,695 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:09:09,695 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:09:09,695 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:09:09,695 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:09:09,711 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-11-28 03:09:09,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 03:09:09,726 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:09,727 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:09,728 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]=== [2020-11-28 03:09:09,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:09,742 INFO L82 PathProgramCache]: Analyzing trace with hash -1837077008, now seen corresponding path program 1 times [2020-11-28 03:09:09,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:09:09,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1419497145] [2020-11-28 03:09:09,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e741dc2-50b4-4a77-9936-2291270f4684/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 [2020-11-28 03:09:09,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:09,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:09:09,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:10,094 INFO L350 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2020-11-28 03:09:10,095 INFO L384 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 [2020-11-28 03:09:10,095 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 03:09:10,101 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:09:10,106 INFO L545 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. [2020-11-28 03:09:10,106 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:11 [2020-11-28 03:09:10,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:10,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:09:10,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:10,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1419497145] [2020-11-28 03:09:10,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:09:10,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-28 03:09:10,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849689584] [2020-11-28 03:09:10,155 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:09:10,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:09:10,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:09:10,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:09:10,181 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 3 states. [2020-11-28 03:09:10,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:10,314 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2020-11-28 03:09:10,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:09:10,317 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-11-28 03:09:10,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:10,326 INFO L225 Difference]: With dead ends: 24 [2020-11-28 03:09:10,326 INFO L226 Difference]: Without dead ends: 21 [2020-11-28 03:09:10,328 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 [2020-11-28 03:09:10,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-28 03:09:10,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-11-28 03:09:10,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-28 03:09:10,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-11-28 03:09:10,367 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 7 [2020-11-28 03:09:10,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:10,368 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-11-28 03:09:10,368 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:09:10,368 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-11-28 03:09:10,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 03:09:10,369 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:10,369 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:10,589 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 03:09:10,589 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]=== [2020-11-28 03:09:10,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:10,590 INFO L82 PathProgramCache]: Analyzing trace with hash -1837077007, now seen corresponding path program 1 times [2020-11-28 03:09:10,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:09:10,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [772737179] [2020-11-28 03:09:10,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e741dc2-50b4-4a77-9936-2291270f4684/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 [2020-11-28 03:09:10,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:10,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:09:10,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:10,792 INFO L441 ElimStorePlain]: Different costs {0=[|v_#length_25|], 1=[|v_#valid_31|]} [2020-11-28 03:09:10,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-28 03:09:10,804 INFO L384 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 [2020-11-28 03:09:10,805 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 03:09:10,821 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:09:10,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-28 03:09:10,836 INFO L384 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 [2020-11-28 03:09:10,838 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-28 03:09:10,849 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:09:10,850 INFO L545 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. [2020-11-28 03:09:10,851 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:14 [2020-11-28 03:09:10,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:10,870 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:09:10,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:10,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [772737179] [2020-11-28 03:09:10,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:09:10,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-28 03:09:10,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539702360] [2020-11-28 03:09:10,944 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:09:10,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:09:10,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:09:10,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:09:10,946 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 4 states. [2020-11-28 03:09:11,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:11,040 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2020-11-28 03:09:11,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:09:11,055 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-28 03:09:11,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:11,056 INFO L225 Difference]: With dead ends: 16 [2020-11-28 03:09:11,056 INFO L226 Difference]: Without dead ends: 16 [2020-11-28 03:09:11,057 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 [2020-11-28 03:09:11,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-28 03:09:11,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-28 03:09:11,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-28 03:09:11,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2020-11-28 03:09:11,060 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 7 [2020-11-28 03:09:11,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:11,061 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2020-11-28 03:09:11,061 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:09:11,061 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-11-28 03:09:11,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 03:09:11,061 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:11,062 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:11,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-28 03:09:11,262 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]=== [2020-11-28 03:09:11,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:11,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1961294140, now seen corresponding path program 1 times [2020-11-28 03:09:11,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:09:11,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [799592665] [2020-11-28 03:09:11,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e741dc2-50b4-4a77-9936-2291270f4684/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 [2020-11-28 03:09:11,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:11,473 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:11,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:11,544 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:11,601 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-28 03:09:11,601 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:09:11,802 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-28 03:09:11,818 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2020-11-28 03:09:11,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:09:11 BoogieIcfgContainer [2020-11-28 03:09:11,837 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:09:11,838 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:09:11,838 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:09:11,838 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:09:11,839 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:09:09" (3/4) ... [2020-11-28 03:09:11,842 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:09:11,842 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:09:11,845 INFO L168 Benchmark]: Toolchain (without parser) took 4361.68 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 50.3 MB in the beginning and 30.8 MB in the end (delta: 19.4 MB). Peak memory consumption was 34.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:11,845 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 69.2 MB. Free memory is still 50.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:09:11,847 INFO L168 Benchmark]: CACSL2BoogieTranslator took 702.25 ms. Allocated memory is still 69.2 MB. Free memory was 50.1 MB in the beginning and 38.8 MB in the end (delta: 11.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:11,848 INFO L168 Benchmark]: Boogie Preprocessor took 110.69 ms. Allocated memory is still 69.2 MB. Free memory was 38.8 MB in the beginning and 36.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:11,852 INFO L168 Benchmark]: RCFGBuilder took 1333.13 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 36.1 MB in the beginning and 53.8 MB in the end (delta: -17.7 MB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:11,859 INFO L168 Benchmark]: TraceAbstraction took 2204.29 ms. Allocated memory is still 83.9 MB. Free memory was 53.3 MB in the beginning and 30.8 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:11,860 INFO L168 Benchmark]: Witness Printer took 4.51 ms. Allocated memory is still 83.9 MB. Free memory is still 30.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:09:11,867 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 69.2 MB. Free memory is still 50.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 702.25 ms. Allocated memory is still 69.2 MB. Free memory was 50.1 MB in the beginning and 38.8 MB in the end (delta: 11.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 110.69 ms. Allocated memory is still 69.2 MB. Free memory was 38.8 MB in the beginning and 36.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1333.13 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 36.1 MB in the beginning and 53.8 MB in the end (delta: -17.7 MB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2204.29 ms. Allocated memory is still 83.9 MB. Free memory was 53.3 MB in the beginning and 30.8 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.2 MB. Max. memory is 16.1 GB. * Witness Printer took 4.51 ms. Allocated memory is still 83.9 MB. Free memory is still 30.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 2.1s, 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, 0.3s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 1 QuantifiedInterpolants, 360 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...