./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/heap-manipulation/tree_false-valid-deref.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_59a0e521-9f7e-493f-96ca-dcb51826b75c/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_59a0e521-9f7e-493f-96ca-dcb51826b75c/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_59a0e521-9f7e-493f-96ca-dcb51826b75c/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_59a0e521-9f7e-493f-96ca-dcb51826b75c/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/heap-manipulation/tree_false-valid-deref.i -s /tmp/vcloud-vcloud-master/worker/working_dir_59a0e521-9f7e-493f-96ca-dcb51826b75c/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_59a0e521-9f7e-493f-96ca-dcb51826b75c/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 044ef52817dc7382960a6f0241b98ee90ba1b40d ...................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-01 18:14:51,734 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 18:14:51,735 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 18:14:51,741 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 18:14:51,741 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 18:14:51,741 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 18:14:51,742 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 18:14:51,743 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 18:14:51,744 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 18:14:51,745 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 18:14:51,745 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 18:14:51,745 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 18:14:51,746 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 18:14:51,746 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 18:14:51,747 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 18:14:51,747 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 18:14:51,748 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 18:14:51,749 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 18:14:51,750 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 18:14:51,750 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 18:14:51,751 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 18:14:51,752 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 18:14:51,753 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 18:14:51,753 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 18:14:51,753 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 18:14:51,754 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 18:14:51,754 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 18:14:51,755 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 18:14:51,755 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 18:14:51,756 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 18:14:51,756 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 18:14:51,757 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 18:14:51,757 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 18:14:51,757 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 18:14:51,757 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 18:14:51,758 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 18:14:51,758 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_59a0e521-9f7e-493f-96ca-dcb51826b75c/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-12-01 18:14:51,765 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 18:14:51,765 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 18:14:51,765 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-01 18:14:51,766 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-01 18:14:51,766 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 18:14:51,766 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 18:14:51,766 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 18:14:51,766 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 18:14:51,766 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 18:14:51,766 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-01 18:14:51,767 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 18:14:51,767 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 18:14:51,767 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 18:14:51,767 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-01 18:14:51,767 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-01 18:14:51,767 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-01 18:14:51,767 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 18:14:51,767 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 18:14:51,767 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 18:14:51,767 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 18:14:51,767 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 18:14:51,768 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 18:14:51,768 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-01 18:14:51,768 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-01 18:14:51,768 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 18:14:51,768 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 18:14:51,768 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-01 18:14:51,768 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 18:14:51,768 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_59a0e521-9f7e-493f-96ca-dcb51826b75c/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 -> 044ef52817dc7382960a6f0241b98ee90ba1b40d [2018-12-01 18:14:51,785 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 18:14:51,792 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 18:14:51,794 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 18:14:51,794 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 18:14:51,795 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 18:14:51,795 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_59a0e521-9f7e-493f-96ca-dcb51826b75c/bin-2019/uautomizer/../../sv-benchmarks/c/heap-manipulation/tree_false-valid-deref.i [2018-12-01 18:14:51,831 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_59a0e521-9f7e-493f-96ca-dcb51826b75c/bin-2019/uautomizer/data/4b58178ed/58d26abba73447d8907ea5edcdbc3903/FLAG7aaed55d9 [2018-12-01 18:14:52,298 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 18:14:52,298 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_59a0e521-9f7e-493f-96ca-dcb51826b75c/sv-benchmarks/c/heap-manipulation/tree_false-valid-deref.i [2018-12-01 18:14:52,304 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_59a0e521-9f7e-493f-96ca-dcb51826b75c/bin-2019/uautomizer/data/4b58178ed/58d26abba73447d8907ea5edcdbc3903/FLAG7aaed55d9 [2018-12-01 18:14:52,814 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_59a0e521-9f7e-493f-96ca-dcb51826b75c/bin-2019/uautomizer/data/4b58178ed/58d26abba73447d8907ea5edcdbc3903 [2018-12-01 18:14:52,817 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 18:14:52,818 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-12-01 18:14:52,818 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 18:14:52,818 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 18:14:52,821 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 18:14:52,821 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:14:52" (1/1) ... [2018-12-01 18:14:52,823 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1763142b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:14:52, skipping insertion in model container [2018-12-01 18:14:52,823 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:14:52" (1/1) ... [2018-12-01 18:14:52,829 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 18:14:52,857 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 18:14:53,021 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 18:14:53,061 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 18:14:53,092 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 18:14:53,116 INFO L195 MainTranslator]: Completed translation [2018-12-01 18:14:53,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:14:53 WrapperNode [2018-12-01 18:14:53,116 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 18:14:53,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 18:14:53,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 18:14:53,117 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 18:14:53,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:14:53" (1/1) ... [2018-12-01 18:14:53,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:14:53" (1/1) ... [2018-12-01 18:14:53,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:14:53" (1/1) ... [2018-12-01 18:14:53,135 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:14:53" (1/1) ... [2018-12-01 18:14:53,145 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:14:53" (1/1) ... [2018-12-01 18:14:53,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:14:53" (1/1) ... [2018-12-01 18:14:53,151 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:14:53" (1/1) ... [2018-12-01 18:14:53,154 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 18:14:53,154 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 18:14:53,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 18:14:53,154 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 18:14:53,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:14:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_59a0e521-9f7e-493f-96ca-dcb51826b75c/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 [2018-12-01 18:14:53,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-01 18:14:53,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 18:14:53,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2018-12-01 18:14:53,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2018-12-01 18:14:53,187 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2018-12-01 18:14:53,187 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2018-12-01 18:14:53,187 INFO L138 BoogieDeclarations]: Found implementation of procedure create_tree [2018-12-01 18:14:53,187 INFO L138 BoogieDeclarations]: Found implementation of procedure free_tree [2018-12-01 18:14:53,187 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-01 18:14:53,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-12-01 18:14:53,187 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2018-12-01 18:14:53,187 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2018-12-01 18:14:53,188 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-12-01 18:14:53,188 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-12-01 18:14:53,188 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-12-01 18:14:53,188 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-12-01 18:14:53,188 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-12-01 18:14:53,188 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-12-01 18:14:53,188 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-12-01 18:14:53,188 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-12-01 18:14:53,188 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-12-01 18:14:53,189 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-12-01 18:14:53,189 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-12-01 18:14:53,189 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-12-01 18:14:53,189 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-12-01 18:14:53,189 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-12-01 18:14:53,189 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-12-01 18:14:53,189 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-12-01 18:14:53,189 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-12-01 18:14:53,189 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-12-01 18:14:53,189 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-12-01 18:14:53,190 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-12-01 18:14:53,190 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-12-01 18:14:53,190 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-12-01 18:14:53,190 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-12-01 18:14:53,190 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-12-01 18:14:53,190 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-12-01 18:14:53,190 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-12-01 18:14:53,190 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-12-01 18:14:53,190 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-12-01 18:14:53,190 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-12-01 18:14:53,191 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-12-01 18:14:53,191 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-12-01 18:14:53,191 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-12-01 18:14:53,191 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-12-01 18:14:53,191 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-12-01 18:14:53,191 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-12-01 18:14:53,191 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-12-01 18:14:53,191 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-12-01 18:14:53,191 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-12-01 18:14:53,191 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-12-01 18:14:53,192 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-12-01 18:14:53,192 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-12-01 18:14:53,192 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-12-01 18:14:53,192 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-12-01 18:14:53,192 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-12-01 18:14:53,192 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-12-01 18:14:53,192 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-12-01 18:14:53,192 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-12-01 18:14:53,192 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-12-01 18:14:53,192 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-12-01 18:14:53,193 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-12-01 18:14:53,193 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-12-01 18:14:53,193 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-12-01 18:14:53,193 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-12-01 18:14:53,193 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-12-01 18:14:53,193 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-12-01 18:14:53,193 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-12-01 18:14:53,193 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-12-01 18:14:53,193 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-12-01 18:14:53,193 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-12-01 18:14:53,193 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-12-01 18:14:53,194 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-12-01 18:14:53,194 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-12-01 18:14:53,194 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-12-01 18:14:53,194 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-12-01 18:14:53,194 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-12-01 18:14:53,194 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-12-01 18:14:53,194 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-12-01 18:14:53,194 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-12-01 18:14:53,194 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-12-01 18:14:53,194 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-12-01 18:14:53,195 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-12-01 18:14:53,195 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-12-01 18:14:53,195 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-12-01 18:14:53,195 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-12-01 18:14:53,195 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-12-01 18:14:53,195 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-12-01 18:14:53,195 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-12-01 18:14:53,195 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-12-01 18:14:53,195 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-12-01 18:14:53,195 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-12-01 18:14:53,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-12-01 18:14:53,196 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-12-01 18:14:53,196 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-12-01 18:14:53,196 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-12-01 18:14:53,196 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-12-01 18:14:53,196 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-12-01 18:14:53,196 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-12-01 18:14:53,196 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-12-01 18:14:53,196 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-12-01 18:14:53,196 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-12-01 18:14:53,196 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-12-01 18:14:53,197 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-12-01 18:14:53,197 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-12-01 18:14:53,197 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-12-01 18:14:53,197 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-12-01 18:14:53,197 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-12-01 18:14:53,197 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-12-01 18:14:53,197 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-12-01 18:14:53,197 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-12-01 18:14:53,197 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-12-01 18:14:53,197 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-12-01 18:14:53,197 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2018-12-01 18:14:53,198 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2018-12-01 18:14:53,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-01 18:14:53,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-01 18:14:53,198 INFO L130 BoogieDeclarations]: Found specification of procedure create_tree [2018-12-01 18:14:53,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-01 18:14:53,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-01 18:14:53,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-01 18:14:53,198 INFO L130 BoogieDeclarations]: Found specification of procedure free_tree [2018-12-01 18:14:53,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-01 18:14:53,198 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-01 18:14:53,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-01 18:14:53,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 18:14:53,556 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 18:14:53,556 INFO L280 CfgBuilder]: Removed 11 assue(true) statements. [2018-12-01 18:14:53,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:14:53 BoogieIcfgContainer [2018-12-01 18:14:53,557 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 18:14:53,557 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-01 18:14:53,557 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-01 18:14:53,559 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-01 18:14:53,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 06:14:52" (1/3) ... [2018-12-01 18:14:53,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@637fdd89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 06:14:53, skipping insertion in model container [2018-12-01 18:14:53,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:14:53" (2/3) ... [2018-12-01 18:14:53,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@637fdd89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 06:14:53, skipping insertion in model container [2018-12-01 18:14:53,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:14:53" (3/3) ... [2018-12-01 18:14:53,561 INFO L112 eAbstractionObserver]: Analyzing ICFG tree_false-valid-deref.i [2018-12-01 18:14:53,567 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-01 18:14:53,572 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 61 error locations. [2018-12-01 18:14:53,583 INFO L257 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2018-12-01 18:14:53,599 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 18:14:53,600 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-01 18:14:53,600 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-01 18:14:53,600 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-01 18:14:53,600 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 18:14:53,600 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 18:14:53,600 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-01 18:14:53,600 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 18:14:53,600 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-01 18:14:53,616 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states. [2018-12-01 18:14:53,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-01 18:14:53,623 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 18:14:53,623 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 18:14:53,625 INFO L423 AbstractCegarLoop]: === Iteration 1 === [create_treeErr8REQUIRES_VIOLATION, create_treeErr29REQUIRES_VIOLATION, create_treeErr10REQUIRES_VIOLATION, create_treeErr9REQUIRES_VIOLATION, create_treeErr6REQUIRES_VIOLATION, create_treeErr27REQUIRES_VIOLATION, create_treeErr5REQUIRES_VIOLATION, create_treeErr7REQUIRES_VIOLATION, create_treeErr28REQUIRES_VIOLATION, create_treeErr14REQUIRES_VIOLATION, create_treeErr13REQUIRES_VIOLATION, create_treeErr15REQUIRES_VIOLATION, create_treeErr11REQUIRES_VIOLATION, create_treeErr12REQUIRES_VIOLATION, create_treeErr19REQUIRES_VIOLATION, create_treeErr20REQUIRES_VIOLATION, create_treeErr16REQUIRES_VIOLATION, create_treeErr18REQUIRES_VIOLATION, create_treeErr17REQUIRES_VIOLATION, create_treeErr3REQUIRES_VIOLATION, create_treeErr24REQUIRES_VIOLATION, create_treeErr26REQUIRES_VIOLATION, create_treeErr4REQUIRES_VIOLATION, create_treeErr25REQUIRES_VIOLATION, create_treeErr22REQUIRES_VIOLATION, create_treeErr0REQUIRES_VIOLATION, create_treeErr21REQUIRES_VIOLATION, create_treeErr2REQUIRES_VIOLATION, create_treeErr23REQUIRES_VIOLATION, create_treeErr1REQUIRES_VIOLATION, inspectErr4REQUIRES_VIOLATION, inspectErr9REQUIRES_VIOLATION, inspectErr3REQUIRES_VIOLATION, inspectErr8REQUIRES_VIOLATION, inspectErr2REQUIRES_VIOLATION, inspectErr7REQUIRES_VIOLATION, inspectErr1REQUIRES_VIOLATION, inspectErr6REQUIRES_VIOLATION, inspectErr0REQUIRES_VIOLATION, inspectErr5REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, free_treeErr2REQUIRES_VIOLATION, free_treeErr1REQUIRES_VIOLATION, free_treeErr12REQUIRES_VIOLATION, free_treeErr11REQUIRES_VIOLATION, free_treeErr8ASSERT_VIOLATIONMEMORY_FREE, free_treeErr0REQUIRES_VIOLATION, free_treeErr4REQUIRES_VIOLATION, free_treeErr3REQUIRES_VIOLATION, free_treeErr13REQUIRES_VIOLATION, free_treeErr19ASSERT_VIOLATIONMEMORY_FREE, free_treeErr18ASSERT_VIOLATIONMEMORY_FREE, free_treeErr7REQUIRES_VIOLATION, free_treeErr17REQUIRES_VIOLATION, free_treeErr6REQUIRES_VIOLATION, free_treeErr5REQUIRES_VIOLATION, free_treeErr14ASSERT_VIOLATIONMEMORY_FREE, free_treeErr15ASSERT_VIOLATIONMEMORY_FREE, free_treeErr16REQUIRES_VIOLATION, free_treeErr10REQUIRES_VIOLATION, free_treeErr9ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-01 18:14:53,629 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 18:14:53,630 INFO L82 PathProgramCache]: Analyzing trace with hash 88921345, now seen corresponding path program 1 times [2018-12-01 18:14:53,631 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 18:14:53,632 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 18:14:53,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:14:53,678 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 18:14:53,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:14:53,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:14:53,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:14:53,723 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 18:14:53,723 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-01 18:14:53,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-01 18:14:53,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-01 18:14:53,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-01 18:14:53,734 INFO L87 Difference]: Start difference. First operand 156 states. Second operand 2 states. [2018-12-01 18:14:53,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 18:14:53,749 INFO L93 Difference]: Finished difference Result 154 states and 166 transitions. [2018-12-01 18:14:53,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-01 18:14:53,750 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2018-12-01 18:14:53,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 18:14:53,755 INFO L225 Difference]: With dead ends: 154 [2018-12-01 18:14:53,755 INFO L226 Difference]: Without dead ends: 147 [2018-12-01 18:14:53,756 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-01 18:14:53,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2018-12-01 18:14:53,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2018-12-01 18:14:53,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2018-12-01 18:14:53,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 157 transitions. [2018-12-01 18:14:53,782 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 157 transitions. Word has length 9 [2018-12-01 18:14:53,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 18:14:53,782 INFO L480 AbstractCegarLoop]: Abstraction has 147 states and 157 transitions. [2018-12-01 18:14:53,782 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-01 18:14:53,782 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 157 transitions. [2018-12-01 18:14:53,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-01 18:14:53,782 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 18:14:53,782 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 18:14:53,783 INFO L423 AbstractCegarLoop]: === Iteration 2 === [create_treeErr8REQUIRES_VIOLATION, create_treeErr29REQUIRES_VIOLATION, create_treeErr10REQUIRES_VIOLATION, create_treeErr9REQUIRES_VIOLATION, create_treeErr6REQUIRES_VIOLATION, create_treeErr27REQUIRES_VIOLATION, create_treeErr5REQUIRES_VIOLATION, create_treeErr7REQUIRES_VIOLATION, create_treeErr28REQUIRES_VIOLATION, create_treeErr14REQUIRES_VIOLATION, create_treeErr13REQUIRES_VIOLATION, create_treeErr15REQUIRES_VIOLATION, create_treeErr11REQUIRES_VIOLATION, create_treeErr12REQUIRES_VIOLATION, create_treeErr19REQUIRES_VIOLATION, create_treeErr20REQUIRES_VIOLATION, create_treeErr16REQUIRES_VIOLATION, create_treeErr18REQUIRES_VIOLATION, create_treeErr17REQUIRES_VIOLATION, create_treeErr3REQUIRES_VIOLATION, create_treeErr24REQUIRES_VIOLATION, create_treeErr26REQUIRES_VIOLATION, create_treeErr4REQUIRES_VIOLATION, create_treeErr25REQUIRES_VIOLATION, create_treeErr22REQUIRES_VIOLATION, create_treeErr0REQUIRES_VIOLATION, create_treeErr21REQUIRES_VIOLATION, create_treeErr2REQUIRES_VIOLATION, create_treeErr23REQUIRES_VIOLATION, create_treeErr1REQUIRES_VIOLATION, inspectErr4REQUIRES_VIOLATION, inspectErr9REQUIRES_VIOLATION, inspectErr3REQUIRES_VIOLATION, inspectErr8REQUIRES_VIOLATION, inspectErr2REQUIRES_VIOLATION, inspectErr7REQUIRES_VIOLATION, inspectErr1REQUIRES_VIOLATION, inspectErr6REQUIRES_VIOLATION, inspectErr0REQUIRES_VIOLATION, inspectErr5REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, free_treeErr2REQUIRES_VIOLATION, free_treeErr1REQUIRES_VIOLATION, free_treeErr12REQUIRES_VIOLATION, free_treeErr11REQUIRES_VIOLATION, free_treeErr8ASSERT_VIOLATIONMEMORY_FREE, free_treeErr0REQUIRES_VIOLATION, free_treeErr4REQUIRES_VIOLATION, free_treeErr3REQUIRES_VIOLATION, free_treeErr13REQUIRES_VIOLATION, free_treeErr19ASSERT_VIOLATIONMEMORY_FREE, free_treeErr18ASSERT_VIOLATIONMEMORY_FREE, free_treeErr7REQUIRES_VIOLATION, free_treeErr17REQUIRES_VIOLATION, free_treeErr6REQUIRES_VIOLATION, free_treeErr5REQUIRES_VIOLATION, free_treeErr14ASSERT_VIOLATIONMEMORY_FREE, free_treeErr15ASSERT_VIOLATIONMEMORY_FREE, free_treeErr16REQUIRES_VIOLATION, free_treeErr10REQUIRES_VIOLATION, free_treeErr9ASSERT_VIOLATIONMEMORY_FREE]=== [2018-12-01 18:14:53,783 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 18:14:53,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1538444225, now seen corresponding path program 1 times [2018-12-01 18:14:53,783 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 18:14:53,783 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 18:14:53,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:14:53,784 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 18:14:53,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:14:53,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 18:14:53,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 18:14:53,808 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-01 18:14:53,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 06:14:53 BoogieIcfgContainer [2018-12-01 18:14:53,820 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-01 18:14:53,820 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 18:14:53,820 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 18:14:53,820 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 18:14:53,821 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:14:53" (3/4) ... [2018-12-01 18:14:53,822 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-01 18:14:53,843 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_59a0e521-9f7e-493f-96ca-dcb51826b75c/bin-2019/uautomizer/witness.graphml [2018-12-01 18:14:53,843 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 18:14:53,844 INFO L168 Benchmark]: Toolchain (without parser) took 1026.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 956.0 MB in the beginning and 1.0 GB in the end (delta: -47.7 MB). Peak memory consumption was 77.1 MB. Max. memory is 11.5 GB. [2018-12-01 18:14:53,845 INFO L168 Benchmark]: CDTParser took 0.11 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. [2018-12-01 18:14:53,845 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -153.5 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. [2018-12-01 18:14:53,845 INFO L168 Benchmark]: Boogie Preprocessor took 37.27 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: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 11.5 GB. [2018-12-01 18:14:53,845 INFO L168 Benchmark]: RCFGBuilder took 402.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 64.5 MB). Peak memory consumption was 64.5 MB. Max. memory is 11.5 GB. [2018-12-01 18:14:53,846 INFO L168 Benchmark]: TraceAbstraction took 262.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. [2018-12-01 18:14:53,846 INFO L168 Benchmark]: Witness Printer took 23.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-12-01 18:14:53,848 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 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 298.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -153.5 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.27 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: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 402.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 64.5 MB). Peak memory consumption was 64.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 262.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. * Witness Printer took 23.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 590]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L622] CALL create_tree() [L574] struct node *nodelast = ((void *)0); [L575] struct node *node = ((void *)0); VAL [node={0:0}, nodelast={0:0}] [L576] COND FALSE !(__VERIFIER_nondet_int()) [L590] node->parent = ((void *)0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 162 locations, 61 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 166 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=156occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...