./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0019_false-valid-memtrack_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1f3da85e-3d47-4035-9526-6452e0b69d56/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1f3da85e-3d47-4035-9526-6452e0b69d56/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1f3da85e-3d47-4035-9526-6452e0b69d56/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1f3da85e-3d47-4035-9526-6452e0b69d56/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0019_false-valid-memtrack_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_1f3da85e-3d47-4035-9526-6452e0b69d56/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1f3da85e-3d47-4035-9526-6452e0b69d56/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 3e29a7fa8491bc0edf7e32b974ff0e341ea18209 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_1f3da85e-3d47-4035-9526-6452e0b69d56/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1f3da85e-3d47-4035-9526-6452e0b69d56/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1f3da85e-3d47-4035-9526-6452e0b69d56/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1f3da85e-3d47-4035-9526-6452e0b69d56/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0019_false-valid-memtrack_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_1f3da85e-3d47-4035-9526-6452e0b69d56/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1f3da85e-3d47-4035-9526-6452e0b69d56/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 3e29a7fa8491bc0edf7e32b974ff0e341ea18209 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 09:25:00,975 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 09:25:00,976 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 09:25:00,982 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 09:25:00,982 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 09:25:00,983 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 09:25:00,983 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 09:25:00,984 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 09:25:00,985 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 09:25:00,985 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 09:25:00,986 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 09:25:00,986 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 09:25:00,986 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 09:25:00,987 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 09:25:00,987 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 09:25:00,988 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 09:25:00,988 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 09:25:00,989 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 09:25:00,990 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 09:25:00,991 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 09:25:00,991 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 09:25:00,992 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 09:25:00,993 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 09:25:00,993 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 09:25:00,993 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 09:25:00,994 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 09:25:00,994 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 09:25:00,995 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 09:25:00,995 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 09:25:00,996 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 09:25:00,996 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 09:25:00,996 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 09:25:00,996 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 09:25:00,997 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 09:25:00,997 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 09:25:00,997 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 09:25:00,998 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1f3da85e-3d47-4035-9526-6452e0b69d56/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-12-08 09:25:01,005 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 09:25:01,005 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 09:25:01,005 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 09:25:01,006 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 09:25:01,006 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 09:25:01,006 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 09:25:01,006 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 09:25:01,006 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 09:25:01,006 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 09:25:01,006 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 09:25:01,006 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 09:25:01,007 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 09:25:01,007 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 09:25:01,007 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-08 09:25:01,007 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-08 09:25:01,007 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-08 09:25:01,007 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 09:25:01,007 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 09:25:01,007 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 09:25:01,007 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 09:25:01,007 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 09:25:01,007 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 09:25:01,007 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 09:25:01,008 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 09:25:01,008 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 09:25:01,008 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 09:25:01,008 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 09:25:01,008 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 09:25:01,008 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_1f3da85e-3d47-4035-9526-6452e0b69d56/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 -> 3e29a7fa8491bc0edf7e32b974ff0e341ea18209 [2018-12-08 09:25:01,026 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 09:25:01,035 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 09:25:01,038 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 09:25:01,039 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 09:25:01,039 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 09:25:01,040 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1f3da85e-3d47-4035-9526-6452e0b69d56/bin-2019/uautomizer/../../sv-benchmarks/c/memsafety/test-0019_false-valid-memtrack_true-termination.i [2018-12-08 09:25:01,089 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1f3da85e-3d47-4035-9526-6452e0b69d56/bin-2019/uautomizer/data/4ed633c5e/8a0d8badec3946ea9002609a5ec67597/FLAGca14fba38 [2018-12-08 09:25:01,546 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 09:25:01,546 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1f3da85e-3d47-4035-9526-6452e0b69d56/sv-benchmarks/c/memsafety/test-0019_false-valid-memtrack_true-termination.i [2018-12-08 09:25:01,552 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1f3da85e-3d47-4035-9526-6452e0b69d56/bin-2019/uautomizer/data/4ed633c5e/8a0d8badec3946ea9002609a5ec67597/FLAGca14fba38 [2018-12-08 09:25:02,060 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1f3da85e-3d47-4035-9526-6452e0b69d56/bin-2019/uautomizer/data/4ed633c5e/8a0d8badec3946ea9002609a5ec67597 [2018-12-08 09:25:02,062 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 09:25:02,062 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-12-08 09:25:02,063 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 09:25:02,063 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 09:25:02,065 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 09:25:02,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 09:25:02" (1/1) ... [2018-12-08 09:25:02,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4834854b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:25:02, skipping insertion in model container [2018-12-08 09:25:02,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 09:25:02" (1/1) ... [2018-12-08 09:25:02,072 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 09:25:02,089 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 09:25:02,225 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 09:25:02,230 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 09:25:02,287 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 09:25:02,312 INFO L195 MainTranslator]: Completed translation [2018-12-08 09:25:02,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:25:02 WrapperNode [2018-12-08 09:25:02,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 09:25:02,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 09:25:02,313 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 09:25:02,313 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 09:25:02,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:25:02" (1/1) ... [2018-12-08 09:25:02,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:25:02" (1/1) ... [2018-12-08 09:25:02,333 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:25:02" (1/1) ... [2018-12-08 09:25:02,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:25:02" (1/1) ... [2018-12-08 09:25:02,340 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:25:02" (1/1) ... [2018-12-08 09:25:02,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:25:02" (1/1) ... [2018-12-08 09:25:02,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:25:02" (1/1) ... [2018-12-08 09:25:02,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 09:25:02,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 09:25:02,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 09:25:02,345 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 09:25:02,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:25:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1f3da85e-3d47-4035-9526-6452e0b69d56/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 [2018-12-08 09:25:02,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 09:25:02,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 09:25:02,377 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_data [2018-12-08 09:25:02,377 INFO L138 BoogieDeclarations]: Found implementation of procedure free_data [2018-12-08 09:25:02,377 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 09:25:02,377 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-12-08 09:25:02,377 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-12-08 09:25:02,377 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-12-08 09:25:02,377 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-12-08 09:25:02,377 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-12-08 09:25:02,378 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-12-08 09:25:02,378 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-12-08 09:25:02,378 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-12-08 09:25:02,378 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-12-08 09:25:02,378 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-12-08 09:25:02,378 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-12-08 09:25:02,378 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-12-08 09:25:02,378 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-12-08 09:25:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-12-08 09:25:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-12-08 09:25:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-12-08 09:25:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-12-08 09:25:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-12-08 09:25:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-12-08 09:25:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-12-08 09:25:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-12-08 09:25:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-12-08 09:25:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-12-08 09:25:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-12-08 09:25:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-12-08 09:25:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-12-08 09:25:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-12-08 09:25:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-12-08 09:25:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-12-08 09:25:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-12-08 09:25:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-12-08 09:25:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-12-08 09:25:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-12-08 09:25:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-12-08 09:25:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-12-08 09:25:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-12-08 09:25:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-12-08 09:25:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-12-08 09:25:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-12-08 09:25:02,381 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-12-08 09:25:02,381 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-12-08 09:25:02,381 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-12-08 09:25:02,381 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-12-08 09:25:02,381 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-12-08 09:25:02,381 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-12-08 09:25:02,381 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-12-08 09:25:02,381 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-12-08 09:25:02,381 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-12-08 09:25:02,381 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-12-08 09:25:02,381 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-12-08 09:25:02,381 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-12-08 09:25:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-12-08 09:25:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-12-08 09:25:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-12-08 09:25:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-12-08 09:25:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-12-08 09:25:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-12-08 09:25:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-12-08 09:25:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-12-08 09:25:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-12-08 09:25:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-12-08 09:25:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-12-08 09:25:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-12-08 09:25:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-12-08 09:25:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-12-08 09:25:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-12-08 09:25:02,383 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-12-08 09:25:02,383 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-12-08 09:25:02,383 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-12-08 09:25:02,383 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-12-08 09:25:02,383 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-12-08 09:25:02,383 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-12-08 09:25:02,383 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-12-08 09:25:02,383 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-12-08 09:25:02,383 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-12-08 09:25:02,383 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-12-08 09:25:02,383 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-12-08 09:25:02,383 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-12-08 09:25:02,383 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-12-08 09:25:02,383 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-12-08 09:25:02,383 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-12-08 09:25:02,383 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-12-08 09:25:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-12-08 09:25:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-12-08 09:25:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-12-08 09:25:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-12-08 09:25:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-12-08 09:25:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-12-08 09:25:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-12-08 09:25:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-12-08 09:25:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-12-08 09:25:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-12-08 09:25:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-12-08 09:25:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-12-08 09:25:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-12-08 09:25:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-12-08 09:25:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-12-08 09:25:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-12-08 09:25:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-12-08 09:25:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-12-08 09:25:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-12-08 09:25:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-12-08 09:25:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_data [2018-12-08 09:25:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 09:25:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-08 09:25:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure free_data [2018-12-08 09:25:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-08 09:25:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 09:25:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 09:25:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 09:25:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 09:25:02,572 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 09:25:02,572 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-08 09:25:02,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:25:02 BoogieIcfgContainer [2018-12-08 09:25:02,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 09:25:02,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 09:25:02,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 09:25:02,575 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 09:25:02,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 09:25:02" (1/3) ... [2018-12-08 09:25:02,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@260e077d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 09:25:02, skipping insertion in model container [2018-12-08 09:25:02,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:25:02" (2/3) ... [2018-12-08 09:25:02,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@260e077d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 09:25:02, skipping insertion in model container [2018-12-08 09:25:02,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:25:02" (3/3) ... [2018-12-08 09:25:02,577 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0019_false-valid-memtrack_true-termination.i [2018-12-08 09:25:02,582 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 09:25:02,586 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2018-12-08 09:25:02,595 INFO L257 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2018-12-08 09:25:02,610 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 09:25:02,610 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 09:25:02,610 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-08 09:25:02,610 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 09:25:02,610 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 09:25:02,611 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 09:25:02,611 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 09:25:02,611 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 09:25:02,611 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 09:25:02,619 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2018-12-08 09:25:02,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-08 09:25:02,625 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:25:02,625 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 09:25:02,626 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr9REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION]=== [2018-12-08 09:25:02,629 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:25:02,629 INFO L82 PathProgramCache]: Analyzing trace with hash -795841943, now seen corresponding path program 1 times [2018-12-08 09:25:02,630 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:25:02,631 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:25:02,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:25:02,658 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:25:02,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:25:02,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:25:02,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:25:02,742 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:25:02,742 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 09:25:02,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 09:25:02,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 09:25:02,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 09:25:02,754 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 5 states. [2018-12-08 09:25:02,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:25:02,842 INFO L93 Difference]: Finished difference Result 48 states and 48 transitions. [2018-12-08 09:25:02,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 09:25:02,843 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-12-08 09:25:02,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:25:02,849 INFO L225 Difference]: With dead ends: 48 [2018-12-08 09:25:02,849 INFO L226 Difference]: Without dead ends: 45 [2018-12-08 09:25:02,850 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-08 09:25:02,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-12-08 09:25:02,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-12-08 09:25:02,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-12-08 09:25:02,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2018-12-08 09:25:02,872 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 9 [2018-12-08 09:25:02,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:25:02,872 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2018-12-08 09:25:02,872 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 09:25:02,873 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2018-12-08 09:25:02,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-08 09:25:02,873 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:25:02,873 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 09:25:02,873 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr9REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION]=== [2018-12-08 09:25:02,873 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:25:02,873 INFO L82 PathProgramCache]: Analyzing trace with hash -795841942, now seen corresponding path program 1 times [2018-12-08 09:25:02,873 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:25:02,873 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:25:02,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:25:02,874 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:25:02,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:25:02,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:25:02,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:25:02,927 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:25:02,927 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 09:25:02,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 09:25:02,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 09:25:02,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 09:25:02,928 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand 5 states. [2018-12-08 09:25:02,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:25:02,991 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2018-12-08 09:25:02,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 09:25:02,991 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-12-08 09:25:02,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:25:02,992 INFO L225 Difference]: With dead ends: 44 [2018-12-08 09:25:02,992 INFO L226 Difference]: Without dead ends: 44 [2018-12-08 09:25:02,993 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-08 09:25:02,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-12-08 09:25:02,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-12-08 09:25:02,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-12-08 09:25:02,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2018-12-08 09:25:02,995 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 44 transitions. Word has length 9 [2018-12-08 09:25:02,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:25:02,996 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 44 transitions. [2018-12-08 09:25:02,996 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 09:25:02,996 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2018-12-08 09:25:02,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-08 09:25:02,996 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:25:02,996 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 09:25:02,996 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr9REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION]=== [2018-12-08 09:25:02,996 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:25:02,996 INFO L82 PathProgramCache]: Analyzing trace with hash -299929109, now seen corresponding path program 1 times [2018-12-08 09:25:02,996 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:25:02,996 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:25:02,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:25:02,997 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:25:02,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:25:03,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:25:03,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:25:03,050 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:25:03,050 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 09:25:03,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 09:25:03,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 09:25:03,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-12-08 09:25:03,050 INFO L87 Difference]: Start difference. First operand 44 states and 44 transitions. Second operand 7 states. [2018-12-08 09:25:03,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:25:03,120 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2018-12-08 09:25:03,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 09:25:03,121 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2018-12-08 09:25:03,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:25:03,121 INFO L225 Difference]: With dead ends: 43 [2018-12-08 09:25:03,121 INFO L226 Difference]: Without dead ends: 43 [2018-12-08 09:25:03,121 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-12-08 09:25:03,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-12-08 09:25:03,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-12-08 09:25:03,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-12-08 09:25:03,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2018-12-08 09:25:03,124 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 43 transitions. Word has length 11 [2018-12-08 09:25:03,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:25:03,124 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 43 transitions. [2018-12-08 09:25:03,124 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 09:25:03,124 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2018-12-08 09:25:03,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-08 09:25:03,125 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:25:03,125 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 09:25:03,125 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr9REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION]=== [2018-12-08 09:25:03,125 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:25:03,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1869726730, now seen corresponding path program 1 times [2018-12-08 09:25:03,125 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:25:03,125 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:25:03,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:25:03,126 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:25:03,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:25:03,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:25:03,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:25:03,166 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:25:03,166 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 09:25:03,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 09:25:03,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 09:25:03,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-08 09:25:03,167 INFO L87 Difference]: Start difference. First operand 43 states and 43 transitions. Second operand 7 states. [2018-12-08 09:25:03,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:25:03,247 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2018-12-08 09:25:03,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 09:25:03,247 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2018-12-08 09:25:03,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:25:03,248 INFO L225 Difference]: With dead ends: 47 [2018-12-08 09:25:03,248 INFO L226 Difference]: Without dead ends: 47 [2018-12-08 09:25:03,248 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-12-08 09:25:03,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-12-08 09:25:03,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 41. [2018-12-08 09:25:03,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-08 09:25:03,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2018-12-08 09:25:03,251 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 16 [2018-12-08 09:25:03,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:25:03,251 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2018-12-08 09:25:03,251 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 09:25:03,251 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2018-12-08 09:25:03,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-08 09:25:03,252 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:25:03,252 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 09:25:03,252 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr9REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION]=== [2018-12-08 09:25:03,252 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:25:03,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1869726731, now seen corresponding path program 1 times [2018-12-08 09:25:03,252 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:25:03,253 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:25:03,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:25:03,253 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:25:03,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:25:03,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:25:03,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:25:03,338 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:25:03,338 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 09:25:03,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-08 09:25:03,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-08 09:25:03,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-12-08 09:25:03,339 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 8 states. [2018-12-08 09:25:03,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:25:03,398 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-12-08 09:25:03,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 09:25:03,398 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2018-12-08 09:25:03,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:25:03,399 INFO L225 Difference]: With dead ends: 37 [2018-12-08 09:25:03,399 INFO L226 Difference]: Without dead ends: 37 [2018-12-08 09:25:03,399 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-12-08 09:25:03,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-12-08 09:25:03,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-12-08 09:25:03,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-12-08 09:25:03,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2018-12-08 09:25:03,401 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 16 [2018-12-08 09:25:03,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:25:03,402 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2018-12-08 09:25:03,402 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-08 09:25:03,402 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2018-12-08 09:25:03,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-08 09:25:03,402 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:25:03,402 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 09:25:03,402 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr9REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION]=== [2018-12-08 09:25:03,402 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:25:03,403 INFO L82 PathProgramCache]: Analyzing trace with hash 362195120, now seen corresponding path program 1 times [2018-12-08 09:25:03,403 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:25:03,403 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:25:03,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:25:03,403 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:25:03,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:25:03,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:25:03,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:25:03,471 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:25:03,471 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-08 09:25:03,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-08 09:25:03,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-08 09:25:03,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-08 09:25:03,472 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand 10 states. [2018-12-08 09:25:03,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:25:03,564 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2018-12-08 09:25:03,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-08 09:25:03,564 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2018-12-08 09:25:03,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:25:03,564 INFO L225 Difference]: With dead ends: 36 [2018-12-08 09:25:03,565 INFO L226 Difference]: Without dead ends: 36 [2018-12-08 09:25:03,565 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2018-12-08 09:25:03,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-12-08 09:25:03,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-12-08 09:25:03,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-12-08 09:25:03,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2018-12-08 09:25:03,567 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 21 [2018-12-08 09:25:03,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:25:03,567 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2018-12-08 09:25:03,567 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-08 09:25:03,567 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2018-12-08 09:25:03,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-08 09:25:03,567 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:25:03,567 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 09:25:03,568 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr9REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION]=== [2018-12-08 09:25:03,568 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:25:03,568 INFO L82 PathProgramCache]: Analyzing trace with hash -1656853106, now seen corresponding path program 1 times [2018-12-08 09:25:03,568 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:25:03,568 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:25:03,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:25:03,569 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:25:03,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:25:03,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:25:03,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:25:03,692 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:25:03,692 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-08 09:25:03,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-08 09:25:03,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-08 09:25:03,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-08 09:25:03,693 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand 10 states. [2018-12-08 09:25:03,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:25:03,797 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2018-12-08 09:25:03,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-08 09:25:03,798 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2018-12-08 09:25:03,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:25:03,799 INFO L225 Difference]: With dead ends: 38 [2018-12-08 09:25:03,800 INFO L226 Difference]: Without dead ends: 38 [2018-12-08 09:25:03,800 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2018-12-08 09:25:03,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-12-08 09:25:03,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2018-12-08 09:25:03,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-12-08 09:25:03,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2018-12-08 09:25:03,802 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 22 [2018-12-08 09:25:03,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:25:03,802 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2018-12-08 09:25:03,802 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-08 09:25:03,802 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2018-12-08 09:25:03,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 09:25:03,803 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:25:03,803 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 09:25:03,803 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr9REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION]=== [2018-12-08 09:25:03,803 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:25:03,803 INFO L82 PathProgramCache]: Analyzing trace with hash 177161330, now seen corresponding path program 1 times [2018-12-08 09:25:03,804 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:25:03,804 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:25:03,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:25:03,804 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:25:03,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:25:03,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:25:03,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:25:03,829 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:25:03,829 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 09:25:03,829 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 09:25:03,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 09:25:03,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 09:25:03,830 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand 4 states. [2018-12-08 09:25:03,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:25:03,853 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-12-08 09:25:03,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 09:25:03,854 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-12-08 09:25:03,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:25:03,855 INFO L225 Difference]: With dead ends: 37 [2018-12-08 09:25:03,855 INFO L226 Difference]: Without dead ends: 37 [2018-12-08 09:25:03,855 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 09:25:03,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-12-08 09:25:03,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 34. [2018-12-08 09:25:03,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-12-08 09:25:03,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2018-12-08 09:25:03,858 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 23 [2018-12-08 09:25:03,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:25:03,858 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2018-12-08 09:25:03,858 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 09:25:03,858 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2018-12-08 09:25:03,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-08 09:25:03,859 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:25:03,859 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 09:25:03,859 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr9REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION]=== [2018-12-08 09:25:03,860 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:25:03,860 INFO L82 PathProgramCache]: Analyzing trace with hash 1197034000, now seen corresponding path program 1 times [2018-12-08 09:25:03,860 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:25:03,860 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:25:03,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:25:03,861 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:25:03,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:25:03,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:25:04,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:25:04,046 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:25:04,046 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-12-08 09:25:04,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-08 09:25:04,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-08 09:25:04,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2018-12-08 09:25:04,047 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 15 states. [2018-12-08 09:25:04,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:25:04,226 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2018-12-08 09:25:04,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-08 09:25:04,226 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 24 [2018-12-08 09:25:04,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:25:04,226 INFO L225 Difference]: With dead ends: 27 [2018-12-08 09:25:04,226 INFO L226 Difference]: Without dead ends: 27 [2018-12-08 09:25:04,227 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=469, Unknown=0, NotChecked=0, Total=552 [2018-12-08 09:25:04,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-12-08 09:25:04,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-12-08 09:25:04,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-12-08 09:25:04,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2018-12-08 09:25:04,228 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 24 [2018-12-08 09:25:04,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:25:04,228 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2018-12-08 09:25:04,228 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-08 09:25:04,228 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2018-12-08 09:25:04,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-08 09:25:04,228 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:25:04,229 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 09:25:04,229 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr9REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION]=== [2018-12-08 09:25:04,229 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:25:04,229 INFO L82 PathProgramCache]: Analyzing trace with hash -119633917, now seen corresponding path program 1 times [2018-12-08 09:25:04,229 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:25:04,229 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:25:04,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:25:04,230 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:25:04,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:25:04,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:25:04,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:25:04,256 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 09:25:04,264 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-12-08 09:25:04,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 09:25:04 BoogieIcfgContainer [2018-12-08 09:25:04,272 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 09:25:04,272 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 09:25:04,272 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 09:25:04,272 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 09:25:04,273 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:25:02" (3/4) ... [2018-12-08 09:25:04,275 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 09:25:04,275 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 09:25:04,275 INFO L168 Benchmark]: Toolchain (without parser) took 2213.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 195.6 MB). Free memory was 955.3 MB in the beginning and 1.1 GB in the end (delta: -176.4 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2018-12-08 09:25:04,276 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 09:25:04,276 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 955.3 MB in the beginning and 1.1 GB in the end (delta: -139.8 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2018-12-08 09:25:04,277 INFO L168 Benchmark]: Boogie Preprocessor took 31.64 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 09:25:04,277 INFO L168 Benchmark]: RCFGBuilder took 227.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 46.9 MB). Peak memory consumption was 46.9 MB. Max. memory is 11.5 GB. [2018-12-08 09:25:04,277 INFO L168 Benchmark]: TraceAbstraction took 1698.88 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 84.9 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -83.4 MB). Peak memory consumption was 1.5 MB. Max. memory is 11.5 GB. [2018-12-08 09:25:04,277 INFO L168 Benchmark]: Witness Printer took 2.59 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 09:25:04,279 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 982.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 249.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 955.3 MB in the beginning and 1.1 GB in the end (delta: -139.8 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.64 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 227.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 46.9 MB). Peak memory consumption was 46.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1698.88 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 84.9 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -83.4 MB). Peak memory consumption was 1.5 MB. Max. memory is 11.5 GB. * Witness Printer took 2.59 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 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: 639]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 639. Possible FailurePath: [L640] TData data; VAL [data={26:0}] [L641] CALL alloc_data(&data) VAL [pdata={26:0}] [L625] pdata->lo = malloc(16) VAL [malloc(16)={28:0}, pdata={26:0}, pdata={26:0}] [L626] pdata->hi = malloc(24) VAL [malloc(16)={28:0}, malloc(24)={27:0}, pdata={26:0}, pdata={26:0}] [L641] RET alloc_data(&data) VAL [data={26:0}] [L642] CALL free_data(&data) VAL [data={26:0}] [L630] EXPR data->lo VAL [data={26:0}, data={26:0}, data->lo={28:0}] [L630] void *lo = data->lo; [L631] EXPR data->hi VAL [data={26:0}, data={26:0}, data->hi={27:0}, lo={28:0}] [L631] void *hi = data->hi; [L632] COND FALSE !(lo == hi) VAL [data={26:0}, data={26:0}, hi={27:0}, lo={28:0}] [L636] data->lo = (void *) 0 VAL [data={26:0}, data={26:0}, hi={27:0}, lo={28:0}] [L637] data->hi = (void *) 0 VAL [data={26:0}, data={26:0}, hi={27:0}, lo={28:0}] [L642] RET free_data(&data) VAL [data={26:0}] [L643] return 0; [L643] return 0; VAL [\result=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 50 locations, 17 error locations. UNSAFE Result, 1.6s OverallTime, 10 OverallIterations, 1 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 252 SDtfs, 196 SDslu, 711 SDs, 0 SdLazy, 839 SolverSat, 67 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred 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, 9 MinimizatonAttempts, 12 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 177 NumberOfCodeBlocks, 177 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 142 ConstructedInterpolants, 0 QuantifiedInterpolants, 12738 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 0.1.23-635dfa2 [2018-12-08 09:25:05,656 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 09:25:05,657 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 09:25:05,663 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 09:25:05,663 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 09:25:05,664 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 09:25:05,664 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 09:25:05,665 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 09:25:05,666 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 09:25:05,666 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 09:25:05,667 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 09:25:05,667 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 09:25:05,667 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 09:25:05,668 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 09:25:05,668 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 09:25:05,669 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 09:25:05,669 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 09:25:05,670 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 09:25:05,671 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 09:25:05,672 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 09:25:05,672 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 09:25:05,673 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 09:25:05,674 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 09:25:05,674 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 09:25:05,674 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 09:25:05,674 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 09:25:05,675 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 09:25:05,675 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 09:25:05,675 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 09:25:05,676 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 09:25:05,676 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 09:25:05,676 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 09:25:05,676 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 09:25:05,677 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 09:25:05,677 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 09:25:05,677 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 09:25:05,677 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1f3da85e-3d47-4035-9526-6452e0b69d56/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2018-12-08 09:25:05,684 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 09:25:05,685 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 09:25:05,685 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 09:25:05,685 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 09:25:05,685 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 09:25:05,686 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 09:25:05,686 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 09:25:05,686 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 09:25:05,686 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 09:25:05,686 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 09:25:05,686 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 09:25:05,686 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 09:25:05,686 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 09:25:05,686 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-08 09:25:05,686 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-08 09:25:05,687 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-08 09:25:05,687 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 09:25:05,687 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-08 09:25:05,687 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-08 09:25:05,687 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 09:25:05,687 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 09:25:05,687 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 09:25:05,687 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 09:25:05,687 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 09:25:05,687 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 09:25:05,687 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 09:25:05,688 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 09:25:05,688 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 09:25:05,688 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-08 09:25:05,688 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 09:25:05,688 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-08 09:25:05,688 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_1f3da85e-3d47-4035-9526-6452e0b69d56/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 -> 3e29a7fa8491bc0edf7e32b974ff0e341ea18209 [2018-12-08 09:25:05,706 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 09:25:05,715 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 09:25:05,718 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 09:25:05,719 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 09:25:05,719 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 09:25:05,720 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1f3da85e-3d47-4035-9526-6452e0b69d56/bin-2019/uautomizer/../../sv-benchmarks/c/memsafety/test-0019_false-valid-memtrack_true-termination.i [2018-12-08 09:25:05,763 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1f3da85e-3d47-4035-9526-6452e0b69d56/bin-2019/uautomizer/data/1a9198625/b5254377b0ed4246af4c73723b588303/FLAGa6729e4c3 [2018-12-08 09:25:06,168 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 09:25:06,168 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1f3da85e-3d47-4035-9526-6452e0b69d56/sv-benchmarks/c/memsafety/test-0019_false-valid-memtrack_true-termination.i [2018-12-08 09:25:06,175 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1f3da85e-3d47-4035-9526-6452e0b69d56/bin-2019/uautomizer/data/1a9198625/b5254377b0ed4246af4c73723b588303/FLAGa6729e4c3 [2018-12-08 09:25:06,183 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1f3da85e-3d47-4035-9526-6452e0b69d56/bin-2019/uautomizer/data/1a9198625/b5254377b0ed4246af4c73723b588303 [2018-12-08 09:25:06,185 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 09:25:06,186 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-12-08 09:25:06,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 09:25:06,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 09:25:06,188 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 09:25:06,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 09:25:06" (1/1) ... [2018-12-08 09:25:06,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39933d25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:25:06, skipping insertion in model container [2018-12-08 09:25:06,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 09:25:06" (1/1) ... [2018-12-08 09:25:06,195 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 09:25:06,213 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 09:25:06,357 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 09:25:06,363 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 09:25:06,388 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 09:25:06,415 INFO L195 MainTranslator]: Completed translation [2018-12-08 09:25:06,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:25:06 WrapperNode [2018-12-08 09:25:06,415 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 09:25:06,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 09:25:06,416 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 09:25:06,416 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 09:25:06,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:25:06" (1/1) ... [2018-12-08 09:25:06,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:25:06" (1/1) ... [2018-12-08 09:25:06,472 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:25:06" (1/1) ... [2018-12-08 09:25:06,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:25:06" (1/1) ... [2018-12-08 09:25:06,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:25:06" (1/1) ... [2018-12-08 09:25:06,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:25:06" (1/1) ... [2018-12-08 09:25:06,482 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:25:06" (1/1) ... [2018-12-08 09:25:06,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 09:25:06,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 09:25:06,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 09:25:06,484 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 09:25:06,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:25:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1f3da85e-3d47-4035-9526-6452e0b69d56/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 [2018-12-08 09:25:06,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 09:25:06,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 09:25:06,515 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_data [2018-12-08 09:25:06,515 INFO L138 BoogieDeclarations]: Found implementation of procedure free_data [2018-12-08 09:25:06,516 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 09:25:06,516 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-12-08 09:25:06,516 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-12-08 09:25:06,516 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-12-08 09:25:06,516 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-12-08 09:25:06,516 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-12-08 09:25:06,516 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-12-08 09:25:06,516 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-12-08 09:25:06,516 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-12-08 09:25:06,516 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-12-08 09:25:06,516 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-12-08 09:25:06,516 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-12-08 09:25:06,517 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-12-08 09:25:06,517 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-12-08 09:25:06,517 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-12-08 09:25:06,517 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-12-08 09:25:06,517 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-12-08 09:25:06,517 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-12-08 09:25:06,517 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-12-08 09:25:06,517 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-12-08 09:25:06,517 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-12-08 09:25:06,517 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-12-08 09:25:06,517 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-12-08 09:25:06,517 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-12-08 09:25:06,518 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-12-08 09:25:06,518 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-12-08 09:25:06,518 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-12-08 09:25:06,518 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-12-08 09:25:06,518 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-12-08 09:25:06,518 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-12-08 09:25:06,518 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-12-08 09:25:06,518 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-12-08 09:25:06,518 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-12-08 09:25:06,518 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-12-08 09:25:06,518 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-12-08 09:25:06,518 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-12-08 09:25:06,519 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-12-08 09:25:06,519 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-12-08 09:25:06,519 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-12-08 09:25:06,519 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-12-08 09:25:06,519 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-12-08 09:25:06,519 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-12-08 09:25:06,519 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-12-08 09:25:06,519 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-12-08 09:25:06,519 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-12-08 09:25:06,519 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-12-08 09:25:06,519 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-12-08 09:25:06,519 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-12-08 09:25:06,519 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-12-08 09:25:06,519 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-12-08 09:25:06,519 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-12-08 09:25:06,519 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-12-08 09:25:06,520 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-12-08 09:25:06,520 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-12-08 09:25:06,520 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-12-08 09:25:06,520 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-12-08 09:25:06,520 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-12-08 09:25:06,520 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-12-08 09:25:06,520 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-12-08 09:25:06,520 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-12-08 09:25:06,520 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-12-08 09:25:06,520 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-12-08 09:25:06,520 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-12-08 09:25:06,520 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-12-08 09:25:06,520 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-12-08 09:25:06,520 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-12-08 09:25:06,520 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-12-08 09:25:06,520 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-12-08 09:25:06,521 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-12-08 09:25:06,521 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-12-08 09:25:06,521 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-12-08 09:25:06,521 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-12-08 09:25:06,521 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-12-08 09:25:06,521 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-12-08 09:25:06,521 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-12-08 09:25:06,521 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-12-08 09:25:06,521 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-12-08 09:25:06,521 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-12-08 09:25:06,521 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-12-08 09:25:06,521 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-12-08 09:25:06,521 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-12-08 09:25:06,521 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-12-08 09:25:06,521 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-12-08 09:25:06,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-12-08 09:25:06,522 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-12-08 09:25:06,522 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-12-08 09:25:06,522 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-12-08 09:25:06,522 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-12-08 09:25:06,522 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-12-08 09:25:06,522 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-12-08 09:25:06,522 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-12-08 09:25:06,522 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-12-08 09:25:06,522 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-12-08 09:25:06,522 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-12-08 09:25:06,522 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-12-08 09:25:06,522 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-12-08 09:25:06,522 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-12-08 09:25:06,522 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-12-08 09:25:06,522 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-12-08 09:25:06,522 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-12-08 09:25:06,523 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-12-08 09:25:06,523 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-12-08 09:25:06,523 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-12-08 09:25:06,523 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_data [2018-12-08 09:25:06,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 09:25:06,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-08 09:25:06,523 INFO L130 BoogieDeclarations]: Found specification of procedure free_data [2018-12-08 09:25:06,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-08 09:25:06,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 09:25:06,523 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 09:25:06,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 09:25:06,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 09:25:06,751 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 09:25:06,751 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-08 09:25:06,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:25:06 BoogieIcfgContainer [2018-12-08 09:25:06,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 09:25:06,752 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 09:25:06,752 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 09:25:06,753 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 09:25:06,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 09:25:06" (1/3) ... [2018-12-08 09:25:06,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5185bdb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 09:25:06, skipping insertion in model container [2018-12-08 09:25:06,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:25:06" (2/3) ... [2018-12-08 09:25:06,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5185bdb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 09:25:06, skipping insertion in model container [2018-12-08 09:25:06,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:25:06" (3/3) ... [2018-12-08 09:25:06,755 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0019_false-valid-memtrack_true-termination.i [2018-12-08 09:25:06,760 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 09:25:06,765 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2018-12-08 09:25:06,773 INFO L257 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2018-12-08 09:25:06,787 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 09:25:06,788 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 09:25:06,788 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-08 09:25:06,788 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 09:25:06,788 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 09:25:06,788 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 09:25:06,788 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 09:25:06,788 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 09:25:06,788 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 09:25:06,796 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2018-12-08 09:25:06,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-08 09:25:06,801 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:25:06,802 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 09:25:06,803 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr1REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION]=== [2018-12-08 09:25:06,806 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:25:06,806 INFO L82 PathProgramCache]: Analyzing trace with hash -795841943, now seen corresponding path program 1 times [2018-12-08 09:25:06,808 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 09:25:06,809 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1f3da85e-3d47-4035-9526-6452e0b69d56/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 [2018-12-08 09:25:06,823 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:25:06,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:25:06,853 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 09:25:06,882 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 09:25:06,883 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 09:25:06,887 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 09:25:06,888 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-12-08 09:25:06,903 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 12 treesize of output 11 [2018-12-08 09:25:06,904 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 09:25:06,908 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. [2018-12-08 09:25:06,908 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2018-12-08 09:25:06,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:25:06,922 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 09:25:06,925 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:25:06,925 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 09:25:06,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 09:25:06,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 09:25:06,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 09:25:06,942 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 5 states. [2018-12-08 09:25:07,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:25:07,069 INFO L93 Difference]: Finished difference Result 48 states and 48 transitions. [2018-12-08 09:25:07,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 09:25:07,070 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-12-08 09:25:07,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:25:07,075 INFO L225 Difference]: With dead ends: 48 [2018-12-08 09:25:07,075 INFO L226 Difference]: Without dead ends: 45 [2018-12-08 09:25:07,076 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-08 09:25:07,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-12-08 09:25:07,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-12-08 09:25:07,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-12-08 09:25:07,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2018-12-08 09:25:07,097 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 9 [2018-12-08 09:25:07,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:25:07,098 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2018-12-08 09:25:07,098 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 09:25:07,098 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2018-12-08 09:25:07,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-08 09:25:07,098 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:25:07,098 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 09:25:07,098 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr1REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION]=== [2018-12-08 09:25:07,099 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:25:07,099 INFO L82 PathProgramCache]: Analyzing trace with hash -795841942, now seen corresponding path program 1 times [2018-12-08 09:25:07,099 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 09:25:07,099 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1f3da85e-3d47-4035-9526-6452e0b69d56/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 [2018-12-08 09:25:07,112 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:25:07,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:25:07,138 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 09:25:07,142 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 09:25:07,142 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 09:25:07,150 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 09:25:07,150 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 09:25:07,155 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 09:25:07,155 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-12-08 09:25:07,182 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:25:07,184 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:25:07,185 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 [2018-12-08 09:25:07,186 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 09:25:07,205 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:25:07,206 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:25:07,207 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 11 treesize of output 4 [2018-12-08 09:25:07,207 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 09:25:07,216 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. [2018-12-08 09:25:07,216 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:14 [2018-12-08 09:25:07,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:25:07,233 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 09:25:07,234 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:25:07,234 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 09:25:07,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 09:25:07,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 09:25:07,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 09:25:07,236 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand 5 states. [2018-12-08 09:25:07,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:25:07,410 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2018-12-08 09:25:07,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 09:25:07,411 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-12-08 09:25:07,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:25:07,411 INFO L225 Difference]: With dead ends: 44 [2018-12-08 09:25:07,411 INFO L226 Difference]: Without dead ends: 44 [2018-12-08 09:25:07,412 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-08 09:25:07,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-12-08 09:25:07,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-12-08 09:25:07,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-12-08 09:25:07,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2018-12-08 09:25:07,415 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 44 transitions. Word has length 9 [2018-12-08 09:25:07,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:25:07,415 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 44 transitions. [2018-12-08 09:25:07,415 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 09:25:07,415 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2018-12-08 09:25:07,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-08 09:25:07,415 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:25:07,415 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 09:25:07,416 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr1REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION]=== [2018-12-08 09:25:07,416 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:25:07,416 INFO L82 PathProgramCache]: Analyzing trace with hash -299929109, now seen corresponding path program 1 times [2018-12-08 09:25:07,416 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 09:25:07,416 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1f3da85e-3d47-4035-9526-6452e0b69d56/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 [2018-12-08 09:25:07,429 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:25:07,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:25:07,464 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 09:25:07,468 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 09:25:07,468 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 09:25:07,476 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 09:25:07,477 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 09:25:07,481 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 09:25:07,482 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-12-08 09:25:07,504 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:25:07,505 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:25:07,506 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 [2018-12-08 09:25:07,507 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 09:25:07,519 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:25:07,520 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:25:07,521 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 13 treesize of output 4 [2018-12-08 09:25:07,521 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 09:25:07,527 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. [2018-12-08 09:25:07,527 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:27, output treesize:14 [2018-12-08 09:25:07,581 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:25:07,582 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:25:07,583 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 13 treesize of output 4 [2018-12-08 09:25:07,583 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 09:25:07,600 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:25:07,602 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:25:07,603 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:25:07,604 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:25:07,612 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 40 [2018-12-08 09:25:07,613 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-12-08 09:25:07,650 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-12-08 09:25:07,650 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:34 [2018-12-08 09:25:07,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:25:07,678 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 09:25:07,679 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:25:07,680 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 09:25:07,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 09:25:07,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 09:25:07,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-08 09:25:07,680 INFO L87 Difference]: Start difference. First operand 44 states and 44 transitions. Second operand 7 states. [2018-12-08 09:25:07,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:25:07,865 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2018-12-08 09:25:07,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 09:25:07,865 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2018-12-08 09:25:07,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:25:07,866 INFO L225 Difference]: With dead ends: 43 [2018-12-08 09:25:07,866 INFO L226 Difference]: Without dead ends: 43 [2018-12-08 09:25:07,866 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-08 09:25:07,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-12-08 09:25:07,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-12-08 09:25:07,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-12-08 09:25:07,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2018-12-08 09:25:07,869 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 43 transitions. Word has length 11 [2018-12-08 09:25:07,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:25:07,869 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 43 transitions. [2018-12-08 09:25:07,869 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 09:25:07,869 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2018-12-08 09:25:07,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-08 09:25:07,869 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:25:07,869 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 09:25:07,870 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr1REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION]=== [2018-12-08 09:25:07,870 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:25:07,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1869726730, now seen corresponding path program 1 times [2018-12-08 09:25:07,870 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 09:25:07,870 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1f3da85e-3d47-4035-9526-6452e0b69d56/bin-2019/uautomizer/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 09:25:07,884 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:25:07,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:25:07,920 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 09:25:07,925 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 [2018-12-08 09:25:07,925 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 09:25:07,926 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 09:25:07,927 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:9, output treesize:3 [2018-12-08 09:25:07,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:25:07,949 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 09:25:07,950 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:25:07,950 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 09:25:07,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 09:25:07,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 09:25:07,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-08 09:25:07,951 INFO L87 Difference]: Start difference. First operand 43 states and 43 transitions. Second operand 7 states. [2018-12-08 09:25:08,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:25:08,110 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2018-12-08 09:25:08,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 09:25:08,110 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2018-12-08 09:25:08,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:25:08,111 INFO L225 Difference]: With dead ends: 47 [2018-12-08 09:25:08,111 INFO L226 Difference]: Without dead ends: 47 [2018-12-08 09:25:08,111 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-12-08 09:25:08,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-12-08 09:25:08,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 41. [2018-12-08 09:25:08,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-08 09:25:08,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2018-12-08 09:25:08,115 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 16 [2018-12-08 09:25:08,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:25:08,115 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2018-12-08 09:25:08,115 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 09:25:08,115 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2018-12-08 09:25:08,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-08 09:25:08,115 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:25:08,115 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 09:25:08,116 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr1REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION]=== [2018-12-08 09:25:08,116 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:25:08,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1869726731, now seen corresponding path program 1 times [2018-12-08 09:25:08,116 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 09:25:08,116 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1f3da85e-3d47-4035-9526-6452e0b69d56/bin-2019/uautomizer/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 09:25:08,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:25:08,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:25:08,164 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 09:25:08,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:25:08,234 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 09:25:08,235 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:25:08,236 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 09:25:08,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-08 09:25:08,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-08 09:25:08,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-12-08 09:25:08,236 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 8 states. [2018-12-08 09:25:08,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:25:08,452 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-12-08 09:25:08,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 09:25:08,453 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2018-12-08 09:25:08,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:25:08,454 INFO L225 Difference]: With dead ends: 37 [2018-12-08 09:25:08,454 INFO L226 Difference]: Without dead ends: 37 [2018-12-08 09:25:08,454 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-12-08 09:25:08,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-12-08 09:25:08,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-12-08 09:25:08,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-12-08 09:25:08,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2018-12-08 09:25:08,456 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 16 [2018-12-08 09:25:08,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:25:08,457 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2018-12-08 09:25:08,457 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-08 09:25:08,457 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2018-12-08 09:25:08,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-08 09:25:08,457 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:25:08,457 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 09:25:08,457 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr1REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION]=== [2018-12-08 09:25:08,458 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:25:08,458 INFO L82 PathProgramCache]: Analyzing trace with hash 362195120, now seen corresponding path program 1 times [2018-12-08 09:25:08,458 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 09:25:08,458 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1f3da85e-3d47-4035-9526-6452e0b69d56/bin-2019/uautomizer/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 09:25:08,474 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:25:08,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:25:08,515 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 09:25:08,536 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-12-08 09:25:08,538 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-12-08 09:25:08,538 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 09:25:08,540 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 09:25:08,542 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 09:25:08,543 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2018-12-08 09:25:08,597 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-12-08 09:25:08,598 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 11 treesize of output 3 [2018-12-08 09:25:08,598 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 09:25:08,599 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 09:25:08,601 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 09:25:08,601 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-12-08 09:25:08,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:25:08,633 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 09:25:08,635 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:25:08,635 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-12-08 09:25:08,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-08 09:25:08,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-08 09:25:08,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-12-08 09:25:08,636 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand 12 states. [2018-12-08 09:25:08,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:25:08,974 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2018-12-08 09:25:08,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-08 09:25:08,974 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 21 [2018-12-08 09:25:08,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:25:08,976 INFO L225 Difference]: With dead ends: 38 [2018-12-08 09:25:08,976 INFO L226 Difference]: Without dead ends: 38 [2018-12-08 09:25:08,976 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2018-12-08 09:25:08,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-12-08 09:25:08,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2018-12-08 09:25:08,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-12-08 09:25:08,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2018-12-08 09:25:08,979 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 21 [2018-12-08 09:25:08,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:25:08,979 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2018-12-08 09:25:08,979 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-08 09:25:08,979 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2018-12-08 09:25:08,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-08 09:25:08,980 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:25:08,980 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 09:25:08,980 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr1REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION]=== [2018-12-08 09:25:08,980 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:25:08,980 INFO L82 PathProgramCache]: Analyzing trace with hash -1656853106, now seen corresponding path program 1 times [2018-12-08 09:25:08,981 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 09:25:08,981 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1f3da85e-3d47-4035-9526-6452e0b69d56/bin-2019/uautomizer/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 09:25:08,993 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:25:09,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:25:09,042 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 09:25:09,067 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 14 treesize of output 11 [2018-12-08 09:25:09,067 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 09:25:09,074 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 09:25:09,074 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:17 [2018-12-08 09:25:09,090 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-12-08 09:25:09,092 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-12-08 09:25:09,092 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 09:25:09,094 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 09:25:09,101 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 09:25:09,101 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:19 [2018-12-08 09:25:09,165 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-12-08 09:25:09,167 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 15 treesize of output 7 [2018-12-08 09:25:09,167 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 09:25:09,169 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 09:25:09,172 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 09:25:09,172 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:15 [2018-12-08 09:25:09,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:25:09,209 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 09:25:09,211 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:25:09,211 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-12-08 09:25:09,211 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-12-08 09:25:09,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-12-08 09:25:09,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-12-08 09:25:09,212 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand 13 states. [2018-12-08 09:25:09,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:25:09,542 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-12-08 09:25:09,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-08 09:25:09,542 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 22 [2018-12-08 09:25:09,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:25:09,543 INFO L225 Difference]: With dead ends: 37 [2018-12-08 09:25:09,543 INFO L226 Difference]: Without dead ends: 37 [2018-12-08 09:25:09,543 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2018-12-08 09:25:09,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-12-08 09:25:09,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 34. [2018-12-08 09:25:09,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-12-08 09:25:09,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2018-12-08 09:25:09,545 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 22 [2018-12-08 09:25:09,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:25:09,545 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2018-12-08 09:25:09,545 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-12-08 09:25:09,545 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2018-12-08 09:25:09,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-08 09:25:09,545 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:25:09,545 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 09:25:09,545 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr1REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION]=== [2018-12-08 09:25:09,546 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:25:09,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1197034000, now seen corresponding path program 1 times [2018-12-08 09:25:09,546 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 09:25:09,546 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1f3da85e-3d47-4035-9526-6452e0b69d56/bin-2019/uautomizer/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 09:25:09,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:25:09,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:25:09,626 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 09:25:09,637 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 09:25:09,638 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 09:25:09,644 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 09:25:09,645 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-12-08 09:25:09,661 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-12-08 09:25:09,663 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-08 09:25:09,663 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 09:25:09,665 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 09:25:09,672 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 09:25:09,673 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:16 [2018-12-08 09:25:09,684 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:25:09,685 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:25:09,686 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 15 treesize of output 8 [2018-12-08 09:25:09,686 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 09:25:09,691 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 09:25:09,692 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:15 [2018-12-08 09:25:09,707 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2018-12-08 09:25:09,710 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:25:09,711 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 17 treesize of output 24 [2018-12-08 09:25:09,711 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 09:25:09,719 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 09:25:09,725 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 09:25:09,725 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:22, output treesize:14 [2018-12-08 09:25:09,844 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2018-12-08 09:25:09,846 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 19 treesize of output 4 [2018-12-08 09:25:09,846 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 09:25:09,848 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 09:25:09,849 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 09:25:09,849 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:4 [2018-12-08 09:25:09,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:25:09,883 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 09:25:09,885 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:25:09,885 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-12-08 09:25:09,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-08 09:25:09,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-08 09:25:09,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2018-12-08 09:25:09,886 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 14 states. [2018-12-08 09:25:10,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:25:10,563 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2018-12-08 09:25:10,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-08 09:25:10,564 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 24 [2018-12-08 09:25:10,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:25:10,564 INFO L225 Difference]: With dead ends: 27 [2018-12-08 09:25:10,564 INFO L226 Difference]: Without dead ends: 27 [2018-12-08 09:25:10,564 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2018-12-08 09:25:10,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-12-08 09:25:10,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-12-08 09:25:10,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-12-08 09:25:10,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2018-12-08 09:25:10,566 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 24 [2018-12-08 09:25:10,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:25:10,566 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2018-12-08 09:25:10,566 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-08 09:25:10,566 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2018-12-08 09:25:10,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-08 09:25:10,567 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:25:10,567 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 09:25:10,567 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, free_dataErr8REQUIRES_VIOLATION, free_dataErr4ASSERT_VIOLATIONMEMORY_FREE, free_dataErr2REQUIRES_VIOLATION, free_dataErr5ASSERT_VIOLATIONMEMORY_FREE, free_dataErr1REQUIRES_VIOLATION, free_dataErr11REQUIRES_VIOLATION, free_dataErr7ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION, free_dataErr10REQUIRES_VIOLATION, free_dataErr6ASSERT_VIOLATIONMEMORY_FREE, free_dataErr9REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION]=== [2018-12-08 09:25:10,567 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:25:10,567 INFO L82 PathProgramCache]: Analyzing trace with hash -119633917, now seen corresponding path program 1 times [2018-12-08 09:25:10,567 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 09:25:10,567 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1f3da85e-3d47-4035-9526-6452e0b69d56/bin-2019/uautomizer/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 09:25:10,580 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:25:10,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:25:10,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:25:10,774 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 09:25:10,784 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-12-08 09:25:10,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 09:25:10 BoogieIcfgContainer [2018-12-08 09:25:10,795 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 09:25:10,795 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 09:25:10,795 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 09:25:10,795 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 09:25:10,796 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:25:06" (3/4) ... [2018-12-08 09:25:10,798 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 09:25:10,798 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 09:25:10,798 INFO L168 Benchmark]: Toolchain (without parser) took 4613.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 213.9 MB). Free memory was 939.3 MB in the beginning and 1.0 GB in the end (delta: -82.6 MB). Peak memory consumption was 131.3 MB. Max. memory is 11.5 GB. [2018-12-08 09:25:10,799 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 09:25:10,799 INFO L168 Benchmark]: CACSL2BoogieTranslator took 229.46 ms. Allocated memory is still 1.0 GB. Free memory was 939.3 MB in the beginning and 917.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-12-08 09:25:10,800 INFO L168 Benchmark]: Boogie Preprocessor took 68.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 917.9 MB in the beginning and 1.1 GB in the end (delta: -210.5 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-12-08 09:25:10,800 INFO L168 Benchmark]: RCFGBuilder took 266.80 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: 46.1 MB). Peak memory consumption was 46.1 MB. Max. memory is 11.5 GB. [2018-12-08 09:25:10,800 INFO L168 Benchmark]: TraceAbstraction took 4043.37 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 72.9 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 52.8 MB). Peak memory consumption was 125.6 MB. Max. memory is 11.5 GB. [2018-12-08 09:25:10,801 INFO L168 Benchmark]: Witness Printer took 2.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 11.5 GB. [2018-12-08 09:25:10,802 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 229.46 ms. Allocated memory is still 1.0 GB. Free memory was 939.3 MB in the beginning and 917.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 68.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 917.9 MB in the beginning and 1.1 GB in the end (delta: -210.5 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 266.80 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: 46.1 MB). Peak memory consumption was 46.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4043.37 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 72.9 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 52.8 MB). Peak memory consumption was 125.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. 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: 639]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 639. Possible FailurePath: [L640] TData data; VAL [data={2013200382:0}] [L641] CALL alloc_data(&data) VAL [pdata={2013200382:0}] [L625] pdata->lo = malloc(16) VAL [malloc(16)={-2013200383:0}, pdata={2013200382:0}, pdata={2013200382:0}] [L626] pdata->hi = malloc(24) VAL [malloc(16)={-2013200383:0}, malloc(24)={-2013200384:0}, pdata={2013200382:0}, pdata={2013200382:0}] [L641] RET alloc_data(&data) VAL [data={2013200382:0}] [L642] CALL free_data(&data) VAL [data={2013200382:0}] [L630] EXPR data->lo VAL [data={2013200382:0}, data={2013200382:0}, data->lo={-2013200383:0}] [L630] void *lo = data->lo; [L631] EXPR data->hi VAL [data={2013200382:0}, data={2013200382:0}, data->hi={-2013200384:0}, lo={-2013200383:0}] [L631] void *hi = data->hi; [L632] COND FALSE !(lo == hi) VAL [data={2013200382:0}, data={2013200382:0}, hi={-2013200384:0}, lo={-2013200383:0}] [L636] data->lo = (void *) 0 VAL [data={2013200382:0}, data={2013200382:0}, hi={-2013200384:0}, lo={-2013200383:0}] [L637] data->hi = (void *) 0 VAL [data={2013200382:0}, data={2013200382:0}, hi={-2013200384:0}, lo={-2013200383:0}] [L642] RET free_data(&data) VAL [data={2013200382:0}] [L643] return 0; [L643] return 0; VAL [\result=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 50 locations, 17 error locations. UNSAFE Result, 4.0s OverallTime, 9 OverallIterations, 1 TraceHistogramMax, 2.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 217 SDtfs, 183 SDslu, 707 SDs, 0 SdLazy, 887 SolverSat, 61 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 146 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred 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, 8 MinimizatonAttempts, 12 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 120 ConstructedInterpolants, 4 QuantifiedInterpolants, 14691 SizeOfPredicates, 54 NumberOfNonLiveVariables, 585 ConjunctsInSsa, 117 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...