./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0158_false-valid-memtrack_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_200a863e-247b-4acb-a52f-db5d17ffa266/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_200a863e-247b-4acb-a52f-db5d17ffa266/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_200a863e-247b-4acb-a52f-db5d17ffa266/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_200a863e-247b-4acb-a52f-db5d17ffa266/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0158_false-valid-memtrack_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_200a863e-247b-4acb-a52f-db5d17ffa266/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_200a863e-247b-4acb-a52f-db5d17ffa266/bin-2019/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 9b3e50b8f852fe8799cb6ad900b216b16bf216ae ................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_200a863e-247b-4acb-a52f-db5d17ffa266/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_200a863e-247b-4acb-a52f-db5d17ffa266/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_200a863e-247b-4acb-a52f-db5d17ffa266/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_200a863e-247b-4acb-a52f-db5d17ffa266/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0158_false-valid-memtrack_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_200a863e-247b-4acb-a52f-db5d17ffa266/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_200a863e-247b-4acb-a52f-db5d17ffa266/bin-2019/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 9b3e50b8f852fe8799cb6ad900b216b16bf216ae .......................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 10:33:42,209 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 10:33:42,210 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 10:33:42,217 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 10:33:42,217 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 10:33:42,218 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 10:33:42,219 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 10:33:42,220 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 10:33:42,221 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 10:33:42,221 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 10:33:42,222 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 10:33:42,222 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 10:33:42,223 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 10:33:42,224 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 10:33:42,224 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 10:33:42,225 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 10:33:42,226 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 10:33:42,227 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 10:33:42,228 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 10:33:42,229 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 10:33:42,230 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 10:33:42,231 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 10:33:42,233 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 10:33:42,233 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 10:33:42,233 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 10:33:42,234 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 10:33:42,234 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 10:33:42,235 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 10:33:42,235 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 10:33:42,236 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 10:33:42,236 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 10:33:42,237 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 10:33:42,237 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 10:33:42,237 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 10:33:42,238 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 10:33:42,238 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 10:33:42,238 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_200a863e-247b-4acb-a52f-db5d17ffa266/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-28 10:33:42,248 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 10:33:42,248 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 10:33:42,249 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 10:33:42,249 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 10:33:42,249 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 10:33:42,249 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 10:33:42,250 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 10:33:42,250 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 10:33:42,250 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 10:33:42,250 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 10:33:42,250 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 10:33:42,250 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 10:33:42,250 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 10:33:42,250 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-28 10:33:42,250 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-28 10:33:42,251 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-28 10:33:42,251 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 10:33:42,251 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 10:33:42,251 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 10:33:42,251 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 10:33:42,251 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 10:33:42,251 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 10:33:42,251 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 10:33:42,252 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 10:33:42,252 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 10:33:42,252 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 10:33:42,252 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 10:33:42,252 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 10:33:42,252 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in 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/working_dir_200a863e-247b-4acb-a52f-db5d17ffa266/bin-2019/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 -> 9b3e50b8f852fe8799cb6ad900b216b16bf216ae [2018-11-28 10:33:42,275 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 10:33:42,284 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 10:33:42,286 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 10:33:42,287 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 10:33:42,287 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 10:33:42,287 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_200a863e-247b-4acb-a52f-db5d17ffa266/bin-2019/uautomizer/../../sv-benchmarks/c/memsafety/test-0158_false-valid-memtrack_true-termination.i [2018-11-28 10:33:42,325 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_200a863e-247b-4acb-a52f-db5d17ffa266/bin-2019/uautomizer/data/8df37654c/2f4370addf714d40b16a04bc7960ef07/FLAG1198e5c68 [2018-11-28 10:33:42,699 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 10:33:42,699 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_200a863e-247b-4acb-a52f-db5d17ffa266/sv-benchmarks/c/memsafety/test-0158_false-valid-memtrack_true-termination.i [2018-11-28 10:33:42,707 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_200a863e-247b-4acb-a52f-db5d17ffa266/bin-2019/uautomizer/data/8df37654c/2f4370addf714d40b16a04bc7960ef07/FLAG1198e5c68 [2018-11-28 10:33:43,098 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_200a863e-247b-4acb-a52f-db5d17ffa266/bin-2019/uautomizer/data/8df37654c/2f4370addf714d40b16a04bc7960ef07 [2018-11-28 10:33:43,101 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 10:33:43,102 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-28 10:33:43,103 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 10:33:43,103 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 10:33:43,105 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 10:33:43,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:33:43" (1/1) ... [2018-11-28 10:33:43,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c3bb61b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:43, skipping insertion in model container [2018-11-28 10:33:43,107 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:33:43" (1/1) ... [2018-11-28 10:33:43,112 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 10:33:43,135 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 10:33:43,301 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 10:33:43,306 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 10:33:43,370 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 10:33:43,397 INFO L195 MainTranslator]: Completed translation [2018-11-28 10:33:43,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:43 WrapperNode [2018-11-28 10:33:43,397 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 10:33:43,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 10:33:43,398 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 10:33:43,398 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 10:33:43,405 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:43" (1/1) ... [2018-11-28 10:33:43,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:43" (1/1) ... [2018-11-28 10:33:43,415 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:43" (1/1) ... [2018-11-28 10:33:43,415 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:43" (1/1) ... [2018-11-28 10:33:43,425 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:43" (1/1) ... [2018-11-28 10:33:43,425 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:43" (1/1) ... [2018-11-28 10:33:43,427 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:43" (1/1) ... [2018-11-28 10:33:43,430 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 10:33:43,431 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 10:33:43,431 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 10:33:43,431 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 10:33:43,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_200a863e-247b-4acb-a52f-db5d17ffa266/bin-2019/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 [2018-11-28 10:33:43,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 10:33:43,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 10:33:43,470 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 10:33:43,470 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-28 10:33:43,471 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-28 10:33:43,471 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-28 10:33:43,471 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-28 10:33:43,471 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-28 10:33:43,471 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-28 10:33:43,471 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-28 10:33:43,471 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-28 10:33:43,471 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-28 10:33:43,471 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-28 10:33:43,472 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-28 10:33:43,472 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-28 10:33:43,472 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-28 10:33:43,472 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-28 10:33:43,472 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-28 10:33:43,472 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-28 10:33:43,472 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-28 10:33:43,473 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-28 10:33:43,473 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-28 10:33:43,473 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-28 10:33:43,473 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-28 10:33:43,473 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-28 10:33:43,473 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-28 10:33:43,473 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-28 10:33:43,473 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-28 10:33:43,473 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-28 10:33:43,473 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-28 10:33:43,473 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-28 10:33:43,473 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-28 10:33:43,474 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-28 10:33:43,474 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-28 10:33:43,474 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-28 10:33:43,474 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-28 10:33:43,474 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-28 10:33:43,474 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-28 10:33:43,474 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-28 10:33:43,474 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-28 10:33:43,474 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-28 10:33:43,474 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-28 10:33:43,474 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-28 10:33:43,474 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-28 10:33:43,474 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-28 10:33:43,474 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-28 10:33:43,474 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-28 10:33:43,474 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-28 10:33:43,475 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-28 10:33:43,475 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-28 10:33:43,475 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-28 10:33:43,475 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-28 10:33:43,475 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-28 10:33:43,475 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-28 10:33:43,475 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-28 10:33:43,475 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-28 10:33:43,475 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-28 10:33:43,475 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-28 10:33:43,475 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-28 10:33:43,475 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-28 10:33:43,475 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-28 10:33:43,475 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-28 10:33:43,475 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-28 10:33:43,475 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-28 10:33:43,475 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-28 10:33:43,476 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-28 10:33:43,476 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-28 10:33:43,476 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-28 10:33:43,476 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-11-28 10:33:43,476 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-28 10:33:43,476 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-28 10:33:43,476 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-28 10:33:43,476 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-28 10:33:43,476 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-28 10:33:43,476 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-28 10:33:43,476 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-28 10:33:43,477 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-28 10:33:43,477 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-28 10:33:43,477 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-28 10:33:43,477 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-28 10:33:43,477 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-28 10:33:43,477 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-28 10:33:43,477 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-28 10:33:43,477 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-28 10:33:43,477 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-28 10:33:43,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-28 10:33:43,478 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-28 10:33:43,478 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-28 10:33:43,478 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-28 10:33:43,478 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-28 10:33:43,478 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-28 10:33:43,478 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-28 10:33:43,478 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-28 10:33:43,478 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-28 10:33:43,479 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-28 10:33:43,479 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-28 10:33:43,479 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-28 10:33:43,479 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-28 10:33:43,479 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-28 10:33:43,479 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-28 10:33:43,479 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-28 10:33:43,479 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-28 10:33:43,479 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-28 10:33:43,479 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-28 10:33:43,480 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-28 10:33:43,480 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 10:33:43,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 10:33:43,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-28 10:33:43,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 10:33:43,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 10:33:43,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 10:33:43,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 10:33:43,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-28 10:33:43,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 10:33:43,730 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 10:33:43,730 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 10:33:43,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:33:43 BoogieIcfgContainer [2018-11-28 10:33:43,730 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 10:33:43,731 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 10:33:43,731 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 10:33:43,733 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 10:33:43,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 10:33:43" (1/3) ... [2018-11-28 10:33:43,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@416d4a74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:33:43, skipping insertion in model container [2018-11-28 10:33:43,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:43" (2/3) ... [2018-11-28 10:33:43,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@416d4a74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:33:43, skipping insertion in model container [2018-11-28 10:33:43,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:33:43" (3/3) ... [2018-11-28 10:33:43,735 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158_false-valid-memtrack_true-termination.i [2018-11-28 10:33:43,741 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 10:33:43,747 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-11-28 10:33:43,759 INFO L257 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2018-11-28 10:33:43,780 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 10:33:43,781 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 10:33:43,781 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-28 10:33:43,781 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 10:33:43,781 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 10:33:43,781 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 10:33:43,781 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 10:33:43,782 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 10:33:43,782 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 10:33:43,792 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-11-28 10:33:43,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 10:33:43,797 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 10:33:43,798 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 10:33:43,800 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr3REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION]=== [2018-11-28 10:33:43,804 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:33:43,805 INFO L82 PathProgramCache]: Analyzing trace with hash 539516245, now seen corresponding path program 1 times [2018-11-28 10:33:43,806 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:33:43,807 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:33:43,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:33:43,841 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:33:43,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:33:43,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:33:43,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:33:43,923 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 10:33:43,923 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 10:33:43,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 10:33:43,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 10:33:43,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 10:33:43,937 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2018-11-28 10:33:43,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 10:33:43,974 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-11-28 10:33:43,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 10:33:43,975 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-28 10:33:43,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 10:33:43,981 INFO L225 Difference]: With dead ends: 18 [2018-11-28 10:33:43,981 INFO L226 Difference]: Without dead ends: 15 [2018-11-28 10:33:43,982 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 10:33:43,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-11-28 10:33:44,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-11-28 10:33:44,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-28 10:33:44,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2018-11-28 10:33:44,002 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 7 [2018-11-28 10:33:44,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 10:33:44,002 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2018-11-28 10:33:44,003 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 10:33:44,003 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2018-11-28 10:33:44,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 10:33:44,003 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 10:33:44,003 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 10:33:44,003 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr3REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION]=== [2018-11-28 10:33:44,003 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:33:44,003 INFO L82 PathProgramCache]: Analyzing trace with hash 539516246, now seen corresponding path program 1 times [2018-11-28 10:33:44,003 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:33:44,003 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:33:44,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:33:44,004 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:33:44,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:33:44,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:33:44,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:33:44,049 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 10:33:44,049 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 10:33:44,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 10:33:44,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 10:33:44,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 10:33:44,051 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 3 states. [2018-11-28 10:33:44,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 10:33:44,065 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2018-11-28 10:33:44,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 10:33:44,065 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-28 10:33:44,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 10:33:44,065 INFO L225 Difference]: With dead ends: 12 [2018-11-28 10:33:44,066 INFO L226 Difference]: Without dead ends: 12 [2018-11-28 10:33:44,066 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 10:33:44,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-11-28 10:33:44,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-28 10:33:44,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-28 10:33:44,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2018-11-28 10:33:44,068 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 7 [2018-11-28 10:33:44,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 10:33:44,068 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2018-11-28 10:33:44,068 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 10:33:44,068 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2018-11-28 10:33:44,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 10:33:44,068 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 10:33:44,068 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 10:33:44,069 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr3REQUIRES_VIOLATION, mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION]=== [2018-11-28 10:33:44,069 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:33:44,069 INFO L82 PathProgramCache]: Analyzing trace with hash -279678759, now seen corresponding path program 1 times [2018-11-28 10:33:44,069 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:33:44,069 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:33:44,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:33:44,070 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:33:44,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:33:44,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:33:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:33:44,108 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 10:33:44,115 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-11-28 10:33:44,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 10:33:44 BoogieIcfgContainer [2018-11-28 10:33:44,121 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 10:33:44,121 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 10:33:44,121 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 10:33:44,122 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 10:33:44,122 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:33:43" (3/4) ... [2018-11-28 10:33:44,124 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 10:33:44,124 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 10:33:44,125 INFO L168 Benchmark]: Toolchain (without parser) took 1023.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 949.5 MB in the beginning and 1.0 GB in the end (delta: -85.4 MB). Peak memory consumption was 41.4 MB. Max. memory is 11.5 GB. [2018-11-28 10:33:44,126 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 10:33:44,126 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -166.9 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. [2018-11-28 10:33:44,127 INFO L168 Benchmark]: Boogie Preprocessor took 33.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 10:33:44,127 INFO L168 Benchmark]: RCFGBuilder took 299.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 35.8 MB). Peak memory consumption was 35.8 MB. Max. memory is 11.5 GB. [2018-11-28 10:33:44,128 INFO L168 Benchmark]: TraceAbstraction took 390.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 11.5 GB. [2018-11-28 10:33:44,128 INFO L168 Benchmark]: Witness Printer took 2.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 10:33:44,130 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 294.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -166.9 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 299.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 35.8 MB). Peak memory consumption was 35.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 390.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 11.5 GB. * Witness Printer took 2.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 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: 619]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 619. Possible FailurePath: [L621-L628] union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; [L629] data.p0 = malloc(37U) VAL [data={39:0}, malloc(37U)={40:0}] [L630] data.str.p2 = &data VAL [data={39:0}, malloc(37U)={40:0}] [L631] data.str.c[1] = sizeof data.str.p1 VAL [data={39:0}, malloc(37U)={40:0}] [L632] return 0; [L632] return 0; VAL [\result=0, malloc(37U)={40:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 21 locations, 7 error locations. UNSAFE Result, 0.3s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 17 SDtfs, 9 SDslu, 12 SDs, 0 SdLazy, 16 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: 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 0.1.23-0cd3be1 [2018-11-28 10:33:45,563 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 10:33:45,565 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 10:33:45,574 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 10:33:45,574 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 10:33:45,575 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 10:33:45,576 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 10:33:45,577 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 10:33:45,578 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 10:33:45,579 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 10:33:45,579 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 10:33:45,579 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 10:33:45,580 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 10:33:45,581 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 10:33:45,582 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 10:33:45,582 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 10:33:45,583 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 10:33:45,584 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 10:33:45,586 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 10:33:45,587 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 10:33:45,587 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 10:33:45,588 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 10:33:45,590 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 10:33:45,590 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 10:33:45,590 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 10:33:45,591 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 10:33:45,592 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 10:33:45,592 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 10:33:45,593 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 10:33:45,594 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 10:33:45,594 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 10:33:45,594 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 10:33:45,594 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 10:33:45,594 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 10:33:45,595 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 10:33:45,596 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 10:33:45,596 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_200a863e-247b-4acb-a52f-db5d17ffa266/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2018-11-28 10:33:45,606 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 10:33:45,606 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 10:33:45,607 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 10:33:45,607 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 10:33:45,608 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 10:33:45,608 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 10:33:45,608 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 10:33:45,608 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 10:33:45,608 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 10:33:45,608 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 10:33:45,609 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 10:33:45,609 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 10:33:45,609 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 10:33:45,609 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-28 10:33:45,609 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-28 10:33:45,609 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-28 10:33:45,609 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 10:33:45,610 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 10:33:45,610 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 10:33:45,610 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 10:33:45,610 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 10:33:45,610 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 10:33:45,610 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 10:33:45,610 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 10:33:45,611 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 10:33:45,611 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 10:33:45,611 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 10:33:45,611 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 10:33:45,611 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 10:33:45,611 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 10:33:45,611 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 10:33:45,612 INFO L133 SettingsManager]: * Logic for external solver=AUFBV 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/working_dir_200a863e-247b-4acb-a52f-db5d17ffa266/bin-2019/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 -> 9b3e50b8f852fe8799cb6ad900b216b16bf216ae [2018-11-28 10:33:45,638 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 10:33:45,647 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 10:33:45,649 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 10:33:45,650 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 10:33:45,651 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 10:33:45,651 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_200a863e-247b-4acb-a52f-db5d17ffa266/bin-2019/uautomizer/../../sv-benchmarks/c/memsafety/test-0158_false-valid-memtrack_true-termination.i [2018-11-28 10:33:45,695 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_200a863e-247b-4acb-a52f-db5d17ffa266/bin-2019/uautomizer/data/b64d41292/4d5241a389e9450e9fcdd88be186b0a8/FLAG4b2afffe9 [2018-11-28 10:33:46,052 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 10:33:46,052 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_200a863e-247b-4acb-a52f-db5d17ffa266/sv-benchmarks/c/memsafety/test-0158_false-valid-memtrack_true-termination.i [2018-11-28 10:33:46,062 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_200a863e-247b-4acb-a52f-db5d17ffa266/bin-2019/uautomizer/data/b64d41292/4d5241a389e9450e9fcdd88be186b0a8/FLAG4b2afffe9 [2018-11-28 10:33:46,453 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_200a863e-247b-4acb-a52f-db5d17ffa266/bin-2019/uautomizer/data/b64d41292/4d5241a389e9450e9fcdd88be186b0a8 [2018-11-28 10:33:46,455 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 10:33:46,456 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-28 10:33:46,456 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 10:33:46,457 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 10:33:46,460 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 10:33:46,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:33:46" (1/1) ... [2018-11-28 10:33:46,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e2c523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:46, skipping insertion in model container [2018-11-28 10:33:46,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:33:46" (1/1) ... [2018-11-28 10:33:46,469 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 10:33:46,495 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 10:33:46,673 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 10:33:46,679 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 10:33:46,710 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 10:33:46,741 INFO L195 MainTranslator]: Completed translation [2018-11-28 10:33:46,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:46 WrapperNode [2018-11-28 10:33:46,742 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 10:33:46,742 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 10:33:46,742 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 10:33:46,743 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 10:33:46,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:46" (1/1) ... [2018-11-28 10:33:46,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:46" (1/1) ... [2018-11-28 10:33:46,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:46" (1/1) ... [2018-11-28 10:33:46,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:46" (1/1) ... [2018-11-28 10:33:46,814 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:46" (1/1) ... [2018-11-28 10:33:46,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:46" (1/1) ... [2018-11-28 10:33:46,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:46" (1/1) ... [2018-11-28 10:33:46,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 10:33:46,821 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 10:33:46,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 10:33:46,821 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 10:33:46,822 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_200a863e-247b-4acb-a52f-db5d17ffa266/bin-2019/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 [2018-11-28 10:33:46,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 10:33:46,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 10:33:46,863 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 10:33:46,863 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-28 10:33:46,863 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-28 10:33:46,863 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-28 10:33:46,863 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-28 10:33:46,864 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-28 10:33:46,864 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-28 10:33:46,864 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-28 10:33:46,864 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-28 10:33:46,864 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-28 10:33:46,864 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-28 10:33:46,864 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-28 10:33:46,864 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-28 10:33:46,864 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-28 10:33:46,865 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-28 10:33:46,865 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-28 10:33:46,865 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-28 10:33:46,865 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-28 10:33:46,865 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-28 10:33:46,865 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-28 10:33:46,865 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-28 10:33:46,866 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-28 10:33:46,866 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-28 10:33:46,866 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-28 10:33:46,866 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-28 10:33:46,866 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-28 10:33:46,866 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-28 10:33:46,866 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-28 10:33:46,866 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-28 10:33:46,867 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-28 10:33:46,867 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-28 10:33:46,867 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-28 10:33:46,867 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-28 10:33:46,867 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-28 10:33:46,867 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-28 10:33:46,867 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-28 10:33:46,868 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-28 10:33:46,868 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-28 10:33:46,868 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-28 10:33:46,868 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-28 10:33:46,868 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-28 10:33:46,868 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-28 10:33:46,868 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-28 10:33:46,868 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-28 10:33:46,869 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-28 10:33:46,869 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-28 10:33:46,869 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-28 10:33:46,869 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-28 10:33:46,869 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-28 10:33:46,869 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-28 10:33:46,869 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-28 10:33:46,869 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-28 10:33:46,869 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-28 10:33:46,869 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-28 10:33:46,870 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-28 10:33:46,870 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-28 10:33:46,870 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-28 10:33:46,870 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-28 10:33:46,870 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-28 10:33:46,870 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-28 10:33:46,870 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-28 10:33:46,870 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-28 10:33:46,870 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-28 10:33:46,871 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-28 10:33:46,871 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-28 10:33:46,871 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-28 10:33:46,871 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-11-28 10:33:46,871 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-28 10:33:46,871 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-28 10:33:46,871 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-28 10:33:46,871 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-28 10:33:46,871 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-28 10:33:46,872 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-28 10:33:46,872 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-28 10:33:46,872 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-28 10:33:46,872 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-28 10:33:46,872 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-28 10:33:46,872 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-28 10:33:46,872 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-28 10:33:46,872 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-28 10:33:46,872 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-28 10:33:46,872 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-28 10:33:46,873 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-28 10:33:46,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-28 10:33:46,873 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-28 10:33:46,873 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-28 10:33:46,873 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-28 10:33:46,873 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-28 10:33:46,873 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-28 10:33:46,873 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-28 10:33:46,873 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-28 10:33:46,874 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-28 10:33:46,874 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-28 10:33:46,874 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-28 10:33:46,874 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-28 10:33:46,874 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-28 10:33:46,874 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-28 10:33:46,874 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-28 10:33:46,874 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-28 10:33:46,874 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-28 10:33:46,874 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-28 10:33:46,875 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-28 10:33:46,875 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-28 10:33:46,875 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 10:33:46,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 10:33:46,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-28 10:33:46,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2018-11-28 10:33:46,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 10:33:46,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 10:33:46,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 10:33:46,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-28 10:33:46,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2018-11-28 10:33:47,133 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 10:33:47,133 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 10:33:47,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:33:47 BoogieIcfgContainer [2018-11-28 10:33:47,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 10:33:47,134 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 10:33:47,134 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 10:33:47,137 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 10:33:47,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 10:33:46" (1/3) ... [2018-11-28 10:33:47,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c3770e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:33:47, skipping insertion in model container [2018-11-28 10:33:47,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:46" (2/3) ... [2018-11-28 10:33:47,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c3770e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:33:47, skipping insertion in model container [2018-11-28 10:33:47,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:33:47" (3/3) ... [2018-11-28 10:33:47,139 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158_false-valid-memtrack_true-termination.i [2018-11-28 10:33:47,144 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 10:33:47,149 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-11-28 10:33:47,157 INFO L257 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2018-11-28 10:33:47,171 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 10:33:47,171 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 10:33:47,171 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-28 10:33:47,172 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 10:33:47,172 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 10:33:47,172 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 10:33:47,172 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 10:33:47,172 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 10:33:47,172 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 10:33:47,180 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-11-28 10:33:47,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 10:33:47,185 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 10:33:47,186 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 10:33:47,187 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2018-11-28 10:33:47,190 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:33:47,191 INFO L82 PathProgramCache]: Analyzing trace with hash 539516245, now seen corresponding path program 1 times [2018-11-28 10:33:47,193 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 10:33:47,193 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_200a863e-247b-4acb-a52f-db5d17ffa266/bin-2019/uautomizer/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 10:33:47,206 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:33:47,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:33:47,235 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 10:33:47,289 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 10:33:47,293 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 27 [2018-11-28 10:33:47,298 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-11-28 10:33:47,299 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 10:33:47,306 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 10:33:47,314 INFO L267 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. [2018-11-28 10:33:47,314 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2018-11-28 10:33:47,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:33:47,325 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 10:33:47,327 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 10:33:47,327 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 10:33:47,330 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 10:33:47,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 10:33:47,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 10:33:47,339 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2018-11-28 10:33:47,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 10:33:47,394 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-11-28 10:33:47,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 10:33:47,396 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-28 10:33:47,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 10:33:47,404 INFO L225 Difference]: With dead ends: 18 [2018-11-28 10:33:47,404 INFO L226 Difference]: Without dead ends: 15 [2018-11-28 10:33:47,405 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 10:33:47,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-11-28 10:33:47,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-11-28 10:33:47,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-28 10:33:47,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2018-11-28 10:33:47,427 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 7 [2018-11-28 10:33:47,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 10:33:47,428 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2018-11-28 10:33:47,428 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 10:33:47,428 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2018-11-28 10:33:47,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 10:33:47,428 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 10:33:47,428 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 10:33:47,428 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2018-11-28 10:33:47,429 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:33:47,429 INFO L82 PathProgramCache]: Analyzing trace with hash 539516246, now seen corresponding path program 1 times [2018-11-28 10:33:47,429 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 10:33:47,429 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_200a863e-247b-4acb-a52f-db5d17ffa266/bin-2019/uautomizer/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 10:33:47,442 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:33:47,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:33:47,461 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 10:33:47,479 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-11-28 10:33:47,483 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 10:33:47,484 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 12 treesize of output 21 [2018-11-28 10:33:47,484 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 10:33:47,493 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 10:33:47,529 INFO L478 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-28 10:33:47,529 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-28 10:33:47,537 INFO L267 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. [2018-11-28 10:33:47,537 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:21, output treesize:14 [2018-11-28 10:33:47,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:33:47,547 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 10:33:47,552 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 10:33:47,552 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 10:33:47,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 10:33:47,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 10:33:47,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 10:33:47,554 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 3 states. [2018-11-28 10:33:47,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 10:33:47,580 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2018-11-28 10:33:47,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 10:33:47,581 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-28 10:33:47,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 10:33:47,581 INFO L225 Difference]: With dead ends: 12 [2018-11-28 10:33:47,581 INFO L226 Difference]: Without dead ends: 12 [2018-11-28 10:33:47,582 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 10:33:47,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-11-28 10:33:47,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-28 10:33:47,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-28 10:33:47,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2018-11-28 10:33:47,584 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 7 [2018-11-28 10:33:47,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 10:33:47,584 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2018-11-28 10:33:47,584 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 10:33:47,584 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2018-11-28 10:33:47,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 10:33:47,585 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 10:33:47,585 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 10:33:47,585 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr6ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2018-11-28 10:33:47,585 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:33:47,585 INFO L82 PathProgramCache]: Analyzing trace with hash -279678759, now seen corresponding path program 1 times [2018-11-28 10:33:47,585 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 10:33:47,586 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_200a863e-247b-4acb-a52f-db5d17ffa266/bin-2019/uautomizer/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 10:33:47,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:33:47,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:33:47,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:33:47,690 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 10:33:47,701 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-11-28 10:33:47,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 10:33:47 BoogieIcfgContainer [2018-11-28 10:33:47,712 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 10:33:47,713 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 10:33:47,713 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 10:33:47,713 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 10:33:47,713 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:33:47" (3/4) ... [2018-11-28 10:33:47,716 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 10:33:47,716 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 10:33:47,716 INFO L168 Benchmark]: Toolchain (without parser) took 1261.33 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 943.4 MB in the beginning and 991.6 MB in the end (delta: -48.2 MB). Peak memory consumption was 61.9 MB. Max. memory is 11.5 GB. [2018-11-28 10:33:47,717 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 10:33:47,718 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.77 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 921.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-28 10:33:47,718 INFO L168 Benchmark]: Boogie Preprocessor took 78.03 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 921.9 MB in the beginning and 1.1 GB in the end (delta: -176.4 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-28 10:33:47,719 INFO L168 Benchmark]: RCFGBuilder took 313.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.2 MB). Peak memory consumption was 39.2 MB. Max. memory is 11.5 GB. [2018-11-28 10:33:47,719 INFO L168 Benchmark]: TraceAbstraction took 578.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 991.6 MB in the end (delta: 67.4 MB). Peak memory consumption was 67.4 MB. Max. memory is 11.5 GB. [2018-11-28 10:33:47,720 INFO L168 Benchmark]: Witness Printer took 3.34 ms. Allocated memory is still 1.1 GB. Free memory is still 991.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 10:33:47,723 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 285.77 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 921.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 78.03 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 921.9 MB in the beginning and 1.1 GB in the end (delta: -176.4 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 313.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.2 MB). Peak memory consumption was 39.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 578.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 991.6 MB in the end (delta: 67.4 MB). Peak memory consumption was 67.4 MB. Max. memory is 11.5 GB. * Witness Printer took 3.34 ms. Allocated memory is still 1.1 GB. Free memory is still 991.6 MB. There was no memory consumed. Max. memory is 11.5 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: 619]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 619. Possible FailurePath: [L621-L628] union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; [L629] data.p0 = malloc(37U) VAL [data={-2147483647:0}, malloc(37U)={-2147483648:0}] [L630] data.str.p2 = &data VAL [data={-2147483647:0}, malloc(37U)={-2147483648:0}] [L631] data.str.c[1] = sizeof data.str.p1 VAL [data={-2147483647:0}, malloc(37U)={-2147483648:0}] [L632] return 0; [L632] return 0; VAL [\result=0, malloc(37U)={-2147483648:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 21 locations, 7 error locations. UNSAFE Result, 0.5s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 17 SDtfs, 9 SDslu, 12 SDs, 0 SdLazy, 16 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 2 QuantifiedInterpolants, 288 SizeOfPredicates, 2 NumberOfNonLiveVariables, 68 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...