./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0158_1_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_c0c29c87-d784-4b41-83be-f21895bee0b6/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c0c29c87-d784-4b41-83be-f21895bee0b6/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c0c29c87-d784-4b41-83be-f21895bee0b6/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c0c29c87-d784-4b41-83be-f21895bee0b6/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0158_1_false-valid-memtrack_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_c0c29c87-d784-4b41-83be-f21895bee0b6/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c0c29c87-d784-4b41-83be-f21895bee0b6/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 724adc6a4f2ec76770ad6e25afc3fbe94cdc2656 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_c0c29c87-d784-4b41-83be-f21895bee0b6/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c0c29c87-d784-4b41-83be-f21895bee0b6/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c0c29c87-d784-4b41-83be-f21895bee0b6/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c0c29c87-d784-4b41-83be-f21895bee0b6/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0158_1_false-valid-memtrack_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_c0c29c87-d784-4b41-83be-f21895bee0b6/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c0c29c87-d784-4b41-83be-f21895bee0b6/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 724adc6a4f2ec76770ad6e25afc3fbe94cdc2656 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 08:52:33,096 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 08:52:33,097 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 08:52:33,102 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 08:52:33,103 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 08:52:33,103 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 08:52:33,104 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 08:52:33,105 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 08:52:33,105 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 08:52:33,106 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 08:52:33,106 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 08:52:33,106 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 08:52:33,107 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 08:52:33,107 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 08:52:33,108 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 08:52:33,108 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 08:52:33,109 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 08:52:33,109 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 08:52:33,110 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 08:52:33,111 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 08:52:33,112 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 08:52:33,112 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 08:52:33,113 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 08:52:33,113 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 08:52:33,113 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 08:52:33,114 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 08:52:33,114 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 08:52:33,115 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 08:52:33,115 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 08:52:33,116 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 08:52:33,116 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 08:52:33,116 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 08:52:33,116 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 08:52:33,116 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 08:52:33,117 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 08:52:33,117 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 08:52:33,117 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c0c29c87-d784-4b41-83be-f21895bee0b6/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-12-08 08:52:33,124 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 08:52:33,125 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 08:52:33,125 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 08:52:33,125 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 08:52:33,125 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 08:52:33,126 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 08:52:33,126 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 08:52:33,126 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 08:52:33,126 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 08:52:33,126 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 08:52:33,126 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 08:52:33,126 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 08:52:33,126 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 08:52:33,126 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-08 08:52:33,126 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-08 08:52:33,126 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-08 08:52:33,126 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 08:52:33,127 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 08:52:33,127 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 08:52:33,127 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 08:52:33,127 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 08:52:33,127 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 08:52:33,127 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 08:52:33,127 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 08:52:33,127 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 08:52:33,127 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 08:52:33,127 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 08:52:33,127 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 08:52:33,128 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_c0c29c87-d784-4b41-83be-f21895bee0b6/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 -> 724adc6a4f2ec76770ad6e25afc3fbe94cdc2656 [2018-12-08 08:52:33,145 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 08:52:33,154 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 08:52:33,156 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 08:52:33,157 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 08:52:33,158 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 08:52:33,158 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c0c29c87-d784-4b41-83be-f21895bee0b6/bin-2019/uautomizer/../../sv-benchmarks/c/list-ext-properties/test-0158_1_false-valid-memtrack_true-termination.i [2018-12-08 08:52:33,194 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c0c29c87-d784-4b41-83be-f21895bee0b6/bin-2019/uautomizer/data/ad0962ebc/c0a5b2c29fd24a6a8490da51526dbd9f/FLAGffa78bdfe [2018-12-08 08:52:33,527 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 08:52:33,528 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c0c29c87-d784-4b41-83be-f21895bee0b6/sv-benchmarks/c/list-ext-properties/test-0158_1_false-valid-memtrack_true-termination.i [2018-12-08 08:52:33,534 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c0c29c87-d784-4b41-83be-f21895bee0b6/bin-2019/uautomizer/data/ad0962ebc/c0a5b2c29fd24a6a8490da51526dbd9f/FLAGffa78bdfe [2018-12-08 08:52:33,542 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c0c29c87-d784-4b41-83be-f21895bee0b6/bin-2019/uautomizer/data/ad0962ebc/c0a5b2c29fd24a6a8490da51526dbd9f [2018-12-08 08:52:33,543 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 08:52:33,544 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-12-08 08:52:33,545 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 08:52:33,545 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 08:52:33,547 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 08:52:33,547 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:52:33" (1/1) ... [2018-12-08 08:52:33,549 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@87f515e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:52:33, skipping insertion in model container [2018-12-08 08:52:33,549 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:52:33" (1/1) ... [2018-12-08 08:52:33,553 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 08:52:33,571 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 08:52:33,705 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 08:52:33,709 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 08:52:33,771 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 08:52:33,792 INFO L195 MainTranslator]: Completed translation [2018-12-08 08:52:33,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:52:33 WrapperNode [2018-12-08 08:52:33,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 08:52:33,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 08:52:33,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 08:52:33,793 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 08:52:33,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:52:33" (1/1) ... [2018-12-08 08:52:33,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:52:33" (1/1) ... [2018-12-08 08:52:33,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:52:33" (1/1) ... [2018-12-08 08:52:33,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:52:33" (1/1) ... [2018-12-08 08:52:33,814 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:52:33" (1/1) ... [2018-12-08 08:52:33,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:52:33" (1/1) ... [2018-12-08 08:52:33,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:52:33" (1/1) ... [2018-12-08 08:52:33,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 08:52:33,819 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 08:52:33,819 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 08:52:33,819 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 08:52:33,819 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:52:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c0c29c87-d784-4b41-83be-f21895bee0b6/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 08:52:33,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 08:52:33,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 08:52:33,849 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 08:52:33,850 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-12-08 08:52:33,850 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-12-08 08:52:33,850 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-12-08 08:52:33,850 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-12-08 08:52:33,850 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-12-08 08:52:33,850 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-12-08 08:52:33,850 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-12-08 08:52:33,850 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-12-08 08:52:33,850 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-12-08 08:52:33,850 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-12-08 08:52:33,850 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-12-08 08:52:33,850 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-12-08 08:52:33,850 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-12-08 08:52:33,850 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-12-08 08:52:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-12-08 08:52:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-12-08 08:52:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-12-08 08:52:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-12-08 08:52:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-12-08 08:52:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-12-08 08:52:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-12-08 08:52:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-12-08 08:52:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-12-08 08:52:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-12-08 08:52:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-12-08 08:52:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-12-08 08:52:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-12-08 08:52:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-12-08 08:52:33,851 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-12-08 08:52:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-12-08 08:52:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-12-08 08:52:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-12-08 08:52:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-12-08 08:52:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-12-08 08:52:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-12-08 08:52:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-12-08 08:52:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-12-08 08:52:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-12-08 08:52:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-12-08 08:52:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-12-08 08:52:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-12-08 08:52:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-12-08 08:52:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-12-08 08:52:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-12-08 08:52:33,852 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-12-08 08:52:33,853 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-12-08 08:52:33,853 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-12-08 08:52:33,853 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-12-08 08:52:33,853 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-12-08 08:52:33,853 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-12-08 08:52:33,853 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-12-08 08:52:33,853 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-12-08 08:52:33,853 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-12-08 08:52:33,853 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-12-08 08:52:33,853 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-12-08 08:52:33,853 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-12-08 08:52:33,853 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-12-08 08:52:33,853 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-12-08 08:52:33,853 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-12-08 08:52:33,853 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-12-08 08:52:33,854 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-12-08 08:52:33,854 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-12-08 08:52:33,854 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-12-08 08:52:33,854 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-12-08 08:52:33,854 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-12-08 08:52:33,854 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-12-08 08:52:33,854 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-12-08 08:52:33,854 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-12-08 08:52:33,854 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-12-08 08:52:33,854 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-12-08 08:52:33,854 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-12-08 08:52:33,854 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-12-08 08:52:33,854 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-12-08 08:52:33,854 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-12-08 08:52:33,854 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-12-08 08:52:33,854 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-12-08 08:52:33,854 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-12-08 08:52:33,855 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-12-08 08:52:33,855 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-12-08 08:52:33,855 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-12-08 08:52:33,855 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-12-08 08:52:33,855 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-12-08 08:52:33,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-12-08 08:52:33,855 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-12-08 08:52:33,855 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-12-08 08:52:33,855 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-12-08 08:52:33,855 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-12-08 08:52:33,855 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-12-08 08:52:33,855 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-12-08 08:52:33,855 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-12-08 08:52:33,855 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-12-08 08:52:33,855 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-12-08 08:52:33,856 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-12-08 08:52:33,856 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-12-08 08:52:33,856 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-12-08 08:52:33,856 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-12-08 08:52:33,856 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-12-08 08:52:33,856 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-12-08 08:52:33,856 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-12-08 08:52:33,856 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-12-08 08:52:33,856 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-12-08 08:52:33,856 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-12-08 08:52:33,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-12-08 08:52:33,856 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 08:52:33,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 08:52:33,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-08 08:52:33,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 08:52:33,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 08:52:33,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 08:52:33,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 08:52:33,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 08:52:33,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-08 08:52:34,036 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 08:52:34,036 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-08 08:52:34,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:52:34 BoogieIcfgContainer [2018-12-08 08:52:34,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 08:52:34,037 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 08:52:34,037 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 08:52:34,039 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 08:52:34,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 08:52:33" (1/3) ... [2018-12-08 08:52:34,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36090f52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 08:52:34, skipping insertion in model container [2018-12-08 08:52:34,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:52:33" (2/3) ... [2018-12-08 08:52:34,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36090f52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 08:52:34, skipping insertion in model container [2018-12-08 08:52:34,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:52:34" (3/3) ... [2018-12-08 08:52:34,040 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158_1_false-valid-memtrack_true-termination.i [2018-12-08 08:52:34,046 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 08:52:34,050 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2018-12-08 08:52:34,059 INFO L257 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2018-12-08 08:52:34,073 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 08:52:34,074 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 08:52:34,074 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-08 08:52:34,074 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 08:52:34,074 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 08:52:34,074 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 08:52:34,074 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 08:52:34,074 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 08:52:34,074 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 08:52:34,083 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-12-08 08:52:34,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-08 08:52:34,088 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:52:34,088 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:52:34,090 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION]=== [2018-12-08 08:52:34,093 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:52:34,093 INFO L82 PathProgramCache]: Analyzing trace with hash 222801288, now seen corresponding path program 1 times [2018-12-08 08:52:34,094 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:52:34,094 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:52:34,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:52:34,122 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:52:34,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:52:34,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:52:34,180 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 08:52:34,182 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:52:34,182 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 08:52:34,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 08:52:34,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 08:52:34,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 08:52:34,193 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 3 states. [2018-12-08 08:52:34,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:52:34,228 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2018-12-08 08:52:34,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 08:52:34,229 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-08 08:52:34,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:52:34,235 INFO L225 Difference]: With dead ends: 25 [2018-12-08 08:52:34,236 INFO L226 Difference]: Without dead ends: 22 [2018-12-08 08:52:34,237 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 08:52:34,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-12-08 08:52:34,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-12-08 08:52:34,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-12-08 08:52:34,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2018-12-08 08:52:34,257 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 7 [2018-12-08 08:52:34,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:52:34,257 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2018-12-08 08:52:34,258 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 08:52:34,258 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2018-12-08 08:52:34,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-08 08:52:34,258 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:52:34,258 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:52:34,258 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION]=== [2018-12-08 08:52:34,258 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:52:34,258 INFO L82 PathProgramCache]: Analyzing trace with hash 222801289, now seen corresponding path program 1 times [2018-12-08 08:52:34,258 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:52:34,259 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:52:34,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:52:34,259 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:52:34,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:52:34,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:52:34,290 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 08:52:34,290 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:52:34,290 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 08:52:34,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 08:52:34,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 08:52:34,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 08:52:34,291 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 3 states. [2018-12-08 08:52:34,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:52:34,305 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2018-12-08 08:52:34,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 08:52:34,305 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-08 08:52:34,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:52:34,305 INFO L225 Difference]: With dead ends: 17 [2018-12-08 08:52:34,305 INFO L226 Difference]: Without dead ends: 17 [2018-12-08 08:52:34,306 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 08:52:34,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-12-08 08:52:34,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-12-08 08:52:34,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-12-08 08:52:34,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-12-08 08:52:34,307 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 7 [2018-12-08 08:52:34,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:52:34,308 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2018-12-08 08:52:34,308 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 08:52:34,308 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2018-12-08 08:52:34,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-08 08:52:34,308 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:52:34,308 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:52:34,308 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION]=== [2018-12-08 08:52:34,308 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:52:34,308 INFO L82 PathProgramCache]: Analyzing trace with hash 88169612, now seen corresponding path program 1 times [2018-12-08 08:52:34,309 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:52:34,309 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:52:34,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:52:34,309 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:52:34,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:52:34,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:52:34,344 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 08:52:34,344 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:52:34,344 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 08:52:34,344 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 08:52:34,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 08:52:34,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 08:52:34,345 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 4 states. [2018-12-08 08:52:34,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:52:34,368 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2018-12-08 08:52:34,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 08:52:34,368 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-12-08 08:52:34,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:52:34,368 INFO L225 Difference]: With dead ends: 21 [2018-12-08 08:52:34,368 INFO L226 Difference]: Without dead ends: 21 [2018-12-08 08:52:34,369 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 08:52:34,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-12-08 08:52:34,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2018-12-08 08:52:34,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-12-08 08:52:34,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2018-12-08 08:52:34,370 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 14 [2018-12-08 08:52:34,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:52:34,371 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2018-12-08 08:52:34,371 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 08:52:34,371 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2018-12-08 08:52:34,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-08 08:52:34,371 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:52:34,371 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:52:34,371 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION]=== [2018-12-08 08:52:34,371 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:52:34,371 INFO L82 PathProgramCache]: Analyzing trace with hash 235932972, now seen corresponding path program 1 times [2018-12-08 08:52:34,372 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:52:34,372 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:52:34,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:52:34,372 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:52:34,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:52:34,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:52:34,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:52:34,401 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 08:52:34,408 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-12-08 08:52:34,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 08:52:34 BoogieIcfgContainer [2018-12-08 08:52:34,415 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 08:52:34,415 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 08:52:34,415 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 08:52:34,415 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 08:52:34,416 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:52:34" (3/4) ... [2018-12-08 08:52:34,418 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 08:52:34,418 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 08:52:34,418 INFO L168 Benchmark]: Toolchain (without parser) took 874.44 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 956.0 MB in the beginning and 1.0 GB in the end (delta: -46.6 MB). Peak memory consumption was 57.7 MB. Max. memory is 11.5 GB. [2018-12-08 08:52:34,419 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 08:52:34,419 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.07 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -137.2 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-12-08 08:52:34,420 INFO L168 Benchmark]: Boogie Preprocessor took 25.59 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 08:52:34,420 INFO L168 Benchmark]: RCFGBuilder took 217.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 41.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 11.5 GB. [2018-12-08 08:52:34,420 INFO L168 Benchmark]: TraceAbstraction took 378.05 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: 49.4 MB). Peak memory consumption was 49.4 MB. Max. memory is 11.5 GB. [2018-12-08 08:52:34,421 INFO L168 Benchmark]: Witness Printer took 2.79 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 08:52:34,422 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 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 248.07 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -137.2 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.59 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 217.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 41.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 378.05 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: 49.4 MB). Peak memory consumption was 49.4 MB. Max. memory is 11.5 GB. * Witness Printer took 2.79 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 620]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 620. Possible FailurePath: [L622-L629] union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; [L630] data.p0 = malloc(37U) VAL [data={40:0}, malloc(37U)={39:0}] [L631] COND FALSE !(__VERIFIER_nondet_int()) [L634] data.str.p2 = 30 VAL [data={40:0}, malloc(37U)={39:0}] [L636] EXPR data.str.p2 VAL [data={40:0}, data.str.p2=30, malloc(37U)={39:0}] [L636] COND FALSE !(25 > data.str.p2) [L639] return 0; [L639] return 0; VAL [\result=0, malloc(37U)={39:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 30 locations, 11 error locations. UNSAFE Result, 0.3s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 42 SDtfs, 26 SDslu, 37 SDs, 0 SdLazy, 38 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 443 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 08:52:35,842 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 08:52:35,843 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 08:52:35,849 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 08:52:35,849 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 08:52:35,850 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 08:52:35,850 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 08:52:35,851 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 08:52:35,852 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 08:52:35,852 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 08:52:35,853 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 08:52:35,853 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 08:52:35,853 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 08:52:35,854 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 08:52:35,854 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 08:52:35,855 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 08:52:35,855 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 08:52:35,856 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 08:52:35,857 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 08:52:35,857 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 08:52:35,858 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 08:52:35,858 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 08:52:35,859 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 08:52:35,860 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 08:52:35,860 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 08:52:35,860 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 08:52:35,861 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 08:52:35,861 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 08:52:35,861 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 08:52:35,862 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 08:52:35,862 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 08:52:35,862 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 08:52:35,862 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 08:52:35,862 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 08:52:35,863 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 08:52:35,863 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 08:52:35,863 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c0c29c87-d784-4b41-83be-f21895bee0b6/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2018-12-08 08:52:35,870 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 08:52:35,871 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 08:52:35,871 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 08:52:35,871 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 08:52:35,872 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 08:52:35,872 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 08:52:35,872 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 08:52:35,872 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 08:52:35,872 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 08:52:35,872 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 08:52:35,872 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 08:52:35,872 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 08:52:35,872 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 08:52:35,872 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-08 08:52:35,873 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-08 08:52:35,873 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-08 08:52:35,873 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 08:52:35,873 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-08 08:52:35,873 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-08 08:52:35,873 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 08:52:35,873 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 08:52:35,873 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 08:52:35,873 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 08:52:35,873 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 08:52:35,873 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 08:52:35,874 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 08:52:35,874 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 08:52:35,874 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 08:52:35,874 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-08 08:52:35,874 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 08:52:35,874 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-08 08:52:35,874 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_c0c29c87-d784-4b41-83be-f21895bee0b6/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 -> 724adc6a4f2ec76770ad6e25afc3fbe94cdc2656 [2018-12-08 08:52:35,891 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 08:52:35,898 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 08:52:35,900 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 08:52:35,901 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 08:52:35,901 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 08:52:35,902 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c0c29c87-d784-4b41-83be-f21895bee0b6/bin-2019/uautomizer/../../sv-benchmarks/c/list-ext-properties/test-0158_1_false-valid-memtrack_true-termination.i [2018-12-08 08:52:35,936 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c0c29c87-d784-4b41-83be-f21895bee0b6/bin-2019/uautomizer/data/ee1623689/85256822b30041e1b8ecf08234bba893/FLAG84bc1f04c [2018-12-08 08:52:36,386 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 08:52:36,386 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c0c29c87-d784-4b41-83be-f21895bee0b6/sv-benchmarks/c/list-ext-properties/test-0158_1_false-valid-memtrack_true-termination.i [2018-12-08 08:52:36,393 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c0c29c87-d784-4b41-83be-f21895bee0b6/bin-2019/uautomizer/data/ee1623689/85256822b30041e1b8ecf08234bba893/FLAG84bc1f04c [2018-12-08 08:52:36,401 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c0c29c87-d784-4b41-83be-f21895bee0b6/bin-2019/uautomizer/data/ee1623689/85256822b30041e1b8ecf08234bba893 [2018-12-08 08:52:36,403 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 08:52:36,404 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-12-08 08:52:36,404 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 08:52:36,404 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 08:52:36,406 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 08:52:36,406 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:52:36" (1/1) ... [2018-12-08 08:52:36,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@149b19b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:52:36, skipping insertion in model container [2018-12-08 08:52:36,408 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:52:36" (1/1) ... [2018-12-08 08:52:36,412 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 08:52:36,429 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 08:52:36,567 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 08:52:36,571 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 08:52:36,597 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 08:52:36,627 INFO L195 MainTranslator]: Completed translation [2018-12-08 08:52:36,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:52:36 WrapperNode [2018-12-08 08:52:36,627 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 08:52:36,628 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 08:52:36,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 08:52:36,628 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 08:52:36,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:52:36" (1/1) ... [2018-12-08 08:52:36,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:52:36" (1/1) ... [2018-12-08 08:52:36,679 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:52:36" (1/1) ... [2018-12-08 08:52:36,679 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:52:36" (1/1) ... [2018-12-08 08:52:36,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:52:36" (1/1) ... [2018-12-08 08:52:36,692 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:52:36" (1/1) ... [2018-12-08 08:52:36,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:52:36" (1/1) ... [2018-12-08 08:52:36,698 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 08:52:36,699 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 08:52:36,699 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 08:52:36,699 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 08:52:36,700 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:52:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c0c29c87-d784-4b41-83be-f21895bee0b6/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 08:52:36,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 08:52:36,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 08:52:36,733 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 08:52:36,733 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-12-08 08:52:36,733 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-12-08 08:52:36,733 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-12-08 08:52:36,733 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-12-08 08:52:36,733 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-12-08 08:52:36,733 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-12-08 08:52:36,734 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-12-08 08:52:36,734 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-12-08 08:52:36,734 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-12-08 08:52:36,734 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-12-08 08:52:36,734 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-12-08 08:52:36,734 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-12-08 08:52:36,734 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-12-08 08:52:36,735 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-12-08 08:52:36,735 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-12-08 08:52:36,735 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-12-08 08:52:36,735 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-12-08 08:52:36,735 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-12-08 08:52:36,735 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-12-08 08:52:36,736 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-12-08 08:52:36,736 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-12-08 08:52:36,736 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-12-08 08:52:36,736 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-12-08 08:52:36,736 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-12-08 08:52:36,736 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-12-08 08:52:36,736 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-12-08 08:52:36,736 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-12-08 08:52:36,737 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-12-08 08:52:36,737 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-12-08 08:52:36,737 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-12-08 08:52:36,737 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-12-08 08:52:36,737 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-12-08 08:52:36,737 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-12-08 08:52:36,737 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-12-08 08:52:36,737 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-12-08 08:52:36,738 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-12-08 08:52:36,738 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-12-08 08:52:36,738 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-12-08 08:52:36,738 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-12-08 08:52:36,738 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-12-08 08:52:36,738 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-12-08 08:52:36,738 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-12-08 08:52:36,738 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-12-08 08:52:36,738 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-12-08 08:52:36,738 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-12-08 08:52:36,739 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-12-08 08:52:36,739 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-12-08 08:52:36,739 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-12-08 08:52:36,739 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-12-08 08:52:36,739 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-12-08 08:52:36,739 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-12-08 08:52:36,739 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-12-08 08:52:36,739 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-12-08 08:52:36,739 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-12-08 08:52:36,739 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-12-08 08:52:36,739 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-12-08 08:52:36,739 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-12-08 08:52:36,739 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-12-08 08:52:36,739 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-12-08 08:52:36,739 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-12-08 08:52:36,740 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-12-08 08:52:36,740 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-12-08 08:52:36,740 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-12-08 08:52:36,740 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-12-08 08:52:36,740 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-12-08 08:52:36,740 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-12-08 08:52:36,740 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-12-08 08:52:36,740 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-12-08 08:52:36,740 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-12-08 08:52:36,740 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-12-08 08:52:36,740 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-12-08 08:52:36,740 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-12-08 08:52:36,740 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-12-08 08:52:36,741 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-12-08 08:52:36,741 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-12-08 08:52:36,741 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-12-08 08:52:36,741 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-12-08 08:52:36,741 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-12-08 08:52:36,741 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-12-08 08:52:36,741 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-12-08 08:52:36,741 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-12-08 08:52:36,742 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-12-08 08:52:36,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-12-08 08:52:36,742 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-12-08 08:52:36,742 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-12-08 08:52:36,742 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-12-08 08:52:36,742 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-12-08 08:52:36,742 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-12-08 08:52:36,742 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-12-08 08:52:36,742 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-12-08 08:52:36,743 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-12-08 08:52:36,743 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-12-08 08:52:36,743 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-12-08 08:52:36,743 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-12-08 08:52:36,743 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-12-08 08:52:36,743 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-12-08 08:52:36,743 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-12-08 08:52:36,743 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-12-08 08:52:36,743 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-12-08 08:52:36,744 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-12-08 08:52:36,744 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-12-08 08:52:36,744 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-12-08 08:52:36,744 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-12-08 08:52:36,744 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 08:52:36,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 08:52:36,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-08 08:52:36,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-08 08:52:36,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-08 08:52:36,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2018-12-08 08:52:36,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 08:52:36,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 08:52:36,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 08:52:36,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-08 08:52:36,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2018-12-08 08:52:36,962 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 08:52:36,962 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-08 08:52:36,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:52:36 BoogieIcfgContainer [2018-12-08 08:52:36,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 08:52:36,963 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 08:52:36,963 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 08:52:36,965 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 08:52:36,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 08:52:36" (1/3) ... [2018-12-08 08:52:36,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d41ebe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 08:52:36, skipping insertion in model container [2018-12-08 08:52:36,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:52:36" (2/3) ... [2018-12-08 08:52:36,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d41ebe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 08:52:36, skipping insertion in model container [2018-12-08 08:52:36,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:52:36" (3/3) ... [2018-12-08 08:52:36,967 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158_1_false-valid-memtrack_true-termination.i [2018-12-08 08:52:36,972 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 08:52:36,977 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2018-12-08 08:52:36,987 INFO L257 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2018-12-08 08:52:37,001 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 08:52:37,001 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 08:52:37,001 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-08 08:52:37,001 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 08:52:37,001 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 08:52:37,001 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 08:52:37,001 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 08:52:37,001 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 08:52:37,001 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 08:52:37,009 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-12-08 08:52:37,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-08 08:52:37,013 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:52:37,014 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:52:37,015 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION]=== [2018-12-08 08:52:37,018 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:52:37,018 INFO L82 PathProgramCache]: Analyzing trace with hash -664733145, now seen corresponding path program 1 times [2018-12-08 08:52:37,020 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 08:52:37,021 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c0c29c87-d784-4b41-83be-f21895bee0b6/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 08:52:37,035 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:52:37,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:52:37,061 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:52:37,087 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-12-08 08:52:37,094 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 08:52:37,095 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:52:37,101 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:52:37,104 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 08:52:37,105 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:9, output treesize:11 [2018-12-08 08:52:37,116 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 08:52:37,116 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 08:52:37,118 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:52:37,118 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 08:52:37,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 08:52:37,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 08:52:37,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 08:52:37,129 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 3 states. [2018-12-08 08:52:37,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:52:37,190 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2018-12-08 08:52:37,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 08:52:37,191 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-08 08:52:37,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:52:37,196 INFO L225 Difference]: With dead ends: 24 [2018-12-08 08:52:37,196 INFO L226 Difference]: Without dead ends: 21 [2018-12-08 08:52:37,197 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 08:52:37,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-12-08 08:52:37,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-12-08 08:52:37,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-12-08 08:52:37,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2018-12-08 08:52:37,217 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 7 [2018-12-08 08:52:37,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:52:37,217 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2018-12-08 08:52:37,217 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 08:52:37,218 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2018-12-08 08:52:37,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-08 08:52:37,218 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:52:37,218 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:52:37,218 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION]=== [2018-12-08 08:52:37,218 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:52:37,218 INFO L82 PathProgramCache]: Analyzing trace with hash -664733144, now seen corresponding path program 1 times [2018-12-08 08:52:37,218 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 08:52:37,219 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c0c29c87-d784-4b41-83be-f21895bee0b6/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 08:52:37,232 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:52:37,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:52:37,251 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:52:37,268 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-12-08 08:52:37,272 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:52:37,272 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 08:52:37,273 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:52:37,280 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:52:37,292 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 08:52:37,293 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 08:52:37,301 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 08:52:37,301 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:21, output treesize:14 [2018-12-08 08:52:37,310 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 08:52:37,310 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 08:52:37,311 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:52:37,311 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 08:52:37,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 08:52:37,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 08:52:37,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 08:52:37,313 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 3 states. [2018-12-08 08:52:37,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:52:37,360 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2018-12-08 08:52:37,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 08:52:37,360 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-08 08:52:37,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:52:37,361 INFO L225 Difference]: With dead ends: 16 [2018-12-08 08:52:37,361 INFO L226 Difference]: Without dead ends: 16 [2018-12-08 08:52:37,361 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 08:52:37,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-12-08 08:52:37,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-12-08 08:52:37,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-12-08 08:52:37,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2018-12-08 08:52:37,363 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 7 [2018-12-08 08:52:37,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:52:37,363 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2018-12-08 08:52:37,363 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 08:52:37,363 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2018-12-08 08:52:37,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-08 08:52:37,364 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:52:37,364 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:52:37,364 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION]=== [2018-12-08 08:52:37,364 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:52:37,364 INFO L82 PathProgramCache]: Analyzing trace with hash -828868173, now seen corresponding path program 1 times [2018-12-08 08:52:37,364 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 08:52:37,364 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c0c29c87-d784-4b41-83be-f21895bee0b6/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 08:52:37,378 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:52:37,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:52:37,411 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:52:37,418 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 08:52:37,421 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 08:52:37,421 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:52:37,424 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:52:37,427 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:52:37,427 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2018-12-08 08:52:37,438 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 21 treesize of output 17 [2018-12-08 08:52:37,441 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 17 treesize of output 5 [2018-12-08 08:52:37,442 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:52:37,443 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:52:37,444 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:52:37,444 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:5 [2018-12-08 08:52:37,452 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 08:52:37,452 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 08:52:37,453 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:52:37,453 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 08:52:37,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 08:52:37,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 08:52:37,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 08:52:37,454 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 4 states. [2018-12-08 08:52:37,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:52:37,518 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2018-12-08 08:52:37,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 08:52:37,519 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-12-08 08:52:37,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:52:37,520 INFO L225 Difference]: With dead ends: 20 [2018-12-08 08:52:37,520 INFO L226 Difference]: Without dead ends: 20 [2018-12-08 08:52:37,520 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 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 08:52:37,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-12-08 08:52:37,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2018-12-08 08:52:37,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-12-08 08:52:37,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2018-12-08 08:52:37,523 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2018-12-08 08:52:37,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:52:37,523 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2018-12-08 08:52:37,524 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 08:52:37,524 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2018-12-08 08:52:37,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-08 08:52:37,524 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:52:37,524 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:52:37,524 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION]=== [2018-12-08 08:52:37,525 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:52:37,525 INFO L82 PathProgramCache]: Analyzing trace with hash -681104813, now seen corresponding path program 1 times [2018-12-08 08:52:37,525 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 08:52:37,525 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c0c29c87-d784-4b41-83be-f21895bee0b6/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 08:52:37,547 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:52:37,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:52:37,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:52:37,630 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 08:52:37,638 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-12-08 08:52:37,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 08:52:37 BoogieIcfgContainer [2018-12-08 08:52:37,647 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 08:52:37,647 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 08:52:37,647 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 08:52:37,647 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 08:52:37,647 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:52:36" (3/4) ... [2018-12-08 08:52:37,650 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 08:52:37,650 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 08:52:37,650 INFO L168 Benchmark]: Toolchain (without parser) took 1247.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 939.3 MB in the beginning and 989.0 MB in the end (delta: -49.6 MB). Peak memory consumption was 96.6 MB. Max. memory is 11.5 GB. [2018-12-08 08:52:37,651 INFO L168 Benchmark]: CDTParser took 0.12 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 08:52:37,652 INFO L168 Benchmark]: CACSL2BoogieTranslator took 223.40 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 08:52:37,652 INFO L168 Benchmark]: Boogie Preprocessor took 70.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 917.9 MB in the beginning and 1.1 GB in the end (delta: -216.2 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. [2018-12-08 08:52:37,652 INFO L168 Benchmark]: RCFGBuilder took 263.91 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: 45.0 MB). Peak memory consumption was 45.0 MB. Max. memory is 11.5 GB. [2018-12-08 08:52:37,652 INFO L168 Benchmark]: TraceAbstraction took 683.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 989.0 MB in the end (delta: 100.1 MB). Peak memory consumption was 100.1 MB. Max. memory is 11.5 GB. [2018-12-08 08:52:37,653 INFO L168 Benchmark]: Witness Printer took 3.02 ms. Allocated memory is still 1.2 GB. Free memory is still 989.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 08:52:37,654 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 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 223.40 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 70.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 917.9 MB in the beginning and 1.1 GB in the end (delta: -216.2 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 263.91 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: 45.0 MB). Peak memory consumption was 45.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 683.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 989.0 MB in the end (delta: 100.1 MB). Peak memory consumption was 100.1 MB. Max. memory is 11.5 GB. * Witness Printer took 3.02 ms. Allocated memory is still 1.2 GB. Free memory is still 989.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 620]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 620. Possible FailurePath: [L622-L629] union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; [L630] data.p0 = malloc(37U) VAL [data={-2147483647:0}, malloc(37U)={-2147483648:0}] [L631] COND FALSE !(__VERIFIER_nondet_int()) [L634] data.str.p2 = 30 VAL [data={-2147483647:0}, malloc(37U)={-2147483648:0}] [L636] EXPR data.str.p2 VAL [data={-2147483647:0}, data.str.p2=30, malloc(37U)={-2147483648:0}] [L636] COND FALSE !(25 > data.str.p2) [L639] return 0; [L639] return 0; VAL [\result=0, malloc(37U)={-2147483648:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 29 locations, 11 error locations. UNSAFE Result, 0.6s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 39 SDtfs, 24 SDslu, 35 SDs, 0 SdLazy, 38 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 24 ConstructedInterpolants, 1 QuantifiedInterpolants, 492 SizeOfPredicates, 5 NumberOfNonLiveVariables, 125 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...