./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-properties/splice_false-unreach-call_false-valid-memcleanup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_d328dac1-c549-44d5-ac5c-637d95947a9e/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d328dac1-c549-44d5-ac5c-637d95947a9e/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d328dac1-c549-44d5-ac5c-637d95947a9e/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d328dac1-c549-44d5-ac5c-637d95947a9e/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/splice_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_d328dac1-c549-44d5-ac5c-637d95947a9e/bin-2019/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d328dac1-c549-44d5-ac5c-637d95947a9e/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-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3c9bb1d53c2739069062f850cb8bf82140406b77 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memtrack) --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 12:39:43,780 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:39:43,782 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:39:43,789 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:39:43,789 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:39:43,790 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:39:43,791 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:39:43,792 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:39:43,793 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:39:43,794 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:39:43,794 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:39:43,794 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:39:43,795 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:39:43,796 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:39:43,796 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:39:43,797 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:39:43,798 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:39:43,799 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:39:43,800 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:39:43,801 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:39:43,802 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:39:43,803 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:39:43,804 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:39:43,805 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:39:43,805 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:39:43,805 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:39:43,806 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:39:43,807 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:39:43,807 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:39:43,808 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:39:43,808 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:39:43,809 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:39:43,809 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:39:43,809 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:39:43,809 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:39:43,810 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:39:43,810 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d328dac1-c549-44d5-ac5c-637d95947a9e/bin-2019/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2018-11-28 12:39:43,820 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:39:43,820 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:39:43,821 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:39:43,821 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:39:43,821 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:39:43,822 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:39:43,822 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:39:43,822 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:39:43,822 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:39:43,822 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 12:39:43,822 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:39:43,822 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:39:43,823 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:39:43,823 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-28 12:39:43,823 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-28 12:39:43,823 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:39:43,823 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:39:43,823 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:39:43,823 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:39:43,823 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:39:43,824 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:39:43,824 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:39:43,824 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:39:43,824 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:39:43,824 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:39:43,824 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:39:43,824 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:39:43,824 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_d328dac1-c549-44d5-ac5c-637d95947a9e/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-memcleanup) ) 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 -> 3c9bb1d53c2739069062f850cb8bf82140406b77 [2018-11-28 12:39:43,847 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:39:43,855 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:39:43,857 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:39:43,858 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:39:43,858 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:39:43,858 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d328dac1-c549-44d5-ac5c-637d95947a9e/bin-2019/uautomizer/../../sv-benchmarks/c/list-properties/splice_false-unreach-call_false-valid-memcleanup.i [2018-11-28 12:39:43,895 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d328dac1-c549-44d5-ac5c-637d95947a9e/bin-2019/uautomizer/data/5880ece32/4e2bd8497391453ab5074eb7fa339aea/FLAG5f4ce053e [2018-11-28 12:39:44,328 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:39:44,328 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d328dac1-c549-44d5-ac5c-637d95947a9e/sv-benchmarks/c/list-properties/splice_false-unreach-call_false-valid-memcleanup.i [2018-11-28 12:39:44,334 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d328dac1-c549-44d5-ac5c-637d95947a9e/bin-2019/uautomizer/data/5880ece32/4e2bd8497391453ab5074eb7fa339aea/FLAG5f4ce053e [2018-11-28 12:39:44,343 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d328dac1-c549-44d5-ac5c-637d95947a9e/bin-2019/uautomizer/data/5880ece32/4e2bd8497391453ab5074eb7fa339aea [2018-11-28 12:39:44,344 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:39:44,345 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-28 12:39:44,346 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:39:44,346 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:39:44,348 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:39:44,349 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:39:44" (1/1) ... [2018-11-28 12:39:44,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ccf24a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:39:44, skipping insertion in model container [2018-11-28 12:39:44,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:39:44" (1/1) ... [2018-11-28 12:39:44,354 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:39:44,379 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:39:44,559 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:39:44,567 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:39:44,638 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:39:44,669 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:39:44,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:39:44 WrapperNode [2018-11-28 12:39:44,669 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:39:44,670 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:39:44,670 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:39:44,670 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:39:44,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:39:44" (1/1) ... [2018-11-28 12:39:44,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:39:44" (1/1) ... [2018-11-28 12:39:44,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:39:44" (1/1) ... [2018-11-28 12:39:44,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:39:44" (1/1) ... [2018-11-28 12:39:44,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:39:44" (1/1) ... [2018-11-28 12:39:44,703 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:39:44" (1/1) ... [2018-11-28 12:39:44,705 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:39:44" (1/1) ... [2018-11-28 12:39:44,709 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:39:44,709 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:39:44,710 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:39:44,710 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:39:44,710 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:39:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d328dac1-c549-44d5-ac5c-637d95947a9e/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:39:44,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:39:44,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:39:44,744 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2018-11-28 12:39:44,744 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:39:44,745 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-28 12:39:44,745 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-28 12:39:44,745 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-28 12:39:44,745 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-28 12:39:44,745 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-28 12:39:44,745 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-28 12:39:44,745 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-28 12:39:44,745 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-28 12:39:44,745 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-28 12:39:44,745 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-28 12:39:44,746 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-28 12:39:44,746 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-28 12:39:44,746 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-28 12:39:44,746 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-28 12:39:44,746 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-28 12:39:44,746 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-28 12:39:44,746 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-28 12:39:44,746 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-28 12:39:44,746 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-28 12:39:44,747 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-28 12:39:44,747 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-28 12:39:44,747 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-28 12:39:44,747 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-28 12:39:44,747 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-28 12:39:44,747 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-28 12:39:44,747 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-28 12:39:44,747 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-28 12:39:44,747 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-28 12:39:44,747 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-28 12:39:44,748 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-28 12:39:44,748 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-28 12:39:44,748 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-28 12:39:44,748 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-28 12:39:44,748 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-28 12:39:44,748 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-28 12:39:44,748 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-28 12:39:44,748 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-28 12:39:44,748 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-28 12:39:44,748 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-28 12:39:44,748 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-28 12:39:44,749 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-28 12:39:44,749 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-28 12:39:44,749 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-28 12:39:44,749 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-28 12:39:44,749 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-28 12:39:44,749 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-28 12:39:44,749 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-28 12:39:44,749 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-28 12:39:44,749 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-28 12:39:44,749 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-28 12:39:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-28 12:39:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-28 12:39:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-28 12:39:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-28 12:39:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-28 12:39:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-28 12:39:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-28 12:39:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-28 12:39:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-28 12:39:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-28 12:39:44,751 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-28 12:39:44,751 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-28 12:39:44,751 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-28 12:39:44,751 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-28 12:39:44,751 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-28 12:39:44,751 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-28 12:39:44,751 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-11-28 12:39:44,751 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-28 12:39:44,751 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-28 12:39:44,752 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-28 12:39:44,752 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-28 12:39:44,752 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-28 12:39:44,752 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-28 12:39:44,752 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-28 12:39:44,752 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-28 12:39:44,752 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-28 12:39:44,752 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-28 12:39:44,752 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-28 12:39:44,752 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-28 12:39:44,753 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-28 12:39:44,753 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-28 12:39:44,753 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-28 12:39:44,753 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-28 12:39:44,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-28 12:39:44,753 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-28 12:39:44,753 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-28 12:39:44,753 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-28 12:39:44,753 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-28 12:39:44,753 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-28 12:39:44,754 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-28 12:39:44,754 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-28 12:39:44,754 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-28 12:39:44,754 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-28 12:39:44,754 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-28 12:39:44,754 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-28 12:39:44,754 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-28 12:39:44,754 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-28 12:39:44,754 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-28 12:39:44,755 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-28 12:39:44,755 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-28 12:39:44,755 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-28 12:39:44,755 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-28 12:39:44,755 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-28 12:39:44,755 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2018-11-28 12:39:44,755 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:39:44,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 12:39:44,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 12:39:44,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-28 12:39:44,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-28 12:39:44,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 12:39:44,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:39:44,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:39:44,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 12:39:45,072 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:39:45,072 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-28 12:39:45,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:39:45 BoogieIcfgContainer [2018-11-28 12:39:45,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:39:45,073 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:39:45,073 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:39:45,076 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:39:45,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:39:44" (1/3) ... [2018-11-28 12:39:45,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f57cf9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:39:45, skipping insertion in model container [2018-11-28 12:39:45,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:39:44" (2/3) ... [2018-11-28 12:39:45,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f57cf9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:39:45, skipping insertion in model container [2018-11-28 12:39:45,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:39:45" (3/3) ... [2018-11-28 12:39:45,078 INFO L112 eAbstractionObserver]: Analyzing ICFG splice_false-unreach-call_false-valid-memcleanup.i [2018-11-28 12:39:45,087 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:39:45,094 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 29 error locations. [2018-11-28 12:39:45,107 INFO L257 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2018-11-28 12:39:45,127 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:39:45,128 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:39:45,128 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-28 12:39:45,128 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:39:45,128 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:39:45,128 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:39:45,128 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:39:45,128 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:39:45,129 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:39:45,142 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2018-11-28 12:39:45,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 12:39:45,147 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:39:45,148 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:39:45,149 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION]=== [2018-11-28 12:39:45,153 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:39:45,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1188482441, now seen corresponding path program 1 times [2018-11-28 12:39:45,154 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:39:45,154 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:39:45,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:39:45,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:39:45,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:39:45,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:39:45,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:39:45,235 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:39:45,235 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:39:45,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 12:39:45,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 12:39:45,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 12:39:45,247 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 2 states. [2018-11-28 12:39:45,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:39:45,261 INFO L93 Difference]: Finished difference Result 83 states and 92 transitions. [2018-11-28 12:39:45,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 12:39:45,262 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-11-28 12:39:45,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:39:45,267 INFO L225 Difference]: With dead ends: 83 [2018-11-28 12:39:45,268 INFO L226 Difference]: Without dead ends: 75 [2018-11-28 12:39:45,269 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 [2018-11-28 12:39:45,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-11-28 12:39:45,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2018-11-28 12:39:45,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-11-28 12:39:45,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 81 transitions. [2018-11-28 12:39:45,292 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 81 transitions. Word has length 10 [2018-11-28 12:39:45,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:39:45,293 INFO L480 AbstractCegarLoop]: Abstraction has 75 states and 81 transitions. [2018-11-28 12:39:45,293 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 12:39:45,293 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 81 transitions. [2018-11-28 12:39:45,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 12:39:45,293 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:39:45,293 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:39:45,293 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION]=== [2018-11-28 12:39:45,293 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:39:45,294 INFO L82 PathProgramCache]: Analyzing trace with hash -1811785646, now seen corresponding path program 1 times [2018-11-28 12:39:45,294 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:39:45,294 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:39:45,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:39:45,294 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:39:45,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:39:45,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:39:45,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:39:45,350 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:39:45,351 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:39:45,352 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 12:39:45,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 12:39:45,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:39:45,352 INFO L87 Difference]: Start difference. First operand 75 states and 81 transitions. Second operand 4 states. [2018-11-28 12:39:45,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:39:45,496 INFO L93 Difference]: Finished difference Result 82 states and 89 transitions. [2018-11-28 12:39:45,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 12:39:45,496 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-11-28 12:39:45,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:39:45,497 INFO L225 Difference]: With dead ends: 82 [2018-11-28 12:39:45,497 INFO L226 Difference]: Without dead ends: 82 [2018-11-28 12:39:45,497 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:39:45,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-11-28 12:39:45,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 76. [2018-11-28 12:39:45,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-11-28 12:39:45,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 88 transitions. [2018-11-28 12:39:45,501 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 88 transitions. Word has length 11 [2018-11-28 12:39:45,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:39:45,501 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 88 transitions. [2018-11-28 12:39:45,501 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 12:39:45,502 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 88 transitions. [2018-11-28 12:39:45,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 12:39:45,502 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:39:45,502 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:39:45,502 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION]=== [2018-11-28 12:39:45,502 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:39:45,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1811785645, now seen corresponding path program 1 times [2018-11-28 12:39:45,502 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:39:45,502 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:39:45,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:39:45,503 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:39:45,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:39:45,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:39:45,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:39:45,533 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:39:45,533 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:39:45,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 12:39:45,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 12:39:45,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:39:45,534 INFO L87 Difference]: Start difference. First operand 76 states and 88 transitions. Second operand 4 states. [2018-11-28 12:39:45,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:39:45,650 INFO L93 Difference]: Finished difference Result 90 states and 99 transitions. [2018-11-28 12:39:45,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 12:39:45,650 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-11-28 12:39:45,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:39:45,651 INFO L225 Difference]: With dead ends: 90 [2018-11-28 12:39:45,651 INFO L226 Difference]: Without dead ends: 90 [2018-11-28 12:39:45,651 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:39:45,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2018-11-28 12:39:45,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 83. [2018-11-28 12:39:45,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-11-28 12:39:45,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 92 transitions. [2018-11-28 12:39:45,657 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 92 transitions. Word has length 11 [2018-11-28 12:39:45,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:39:45,657 INFO L480 AbstractCegarLoop]: Abstraction has 83 states and 92 transitions. [2018-11-28 12:39:45,657 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 12:39:45,657 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 92 transitions. [2018-11-28 12:39:45,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-28 12:39:45,658 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:39:45,658 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:39:45,658 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr28ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION]=== [2018-11-28 12:39:45,658 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:39:45,659 INFO L82 PathProgramCache]: Analyzing trace with hash -52140124, now seen corresponding path program 1 times [2018-11-28 12:39:45,659 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:39:45,659 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:39:45,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:39:45,660 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:39:45,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:39:45,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:39:45,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:39:45,695 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 12:39:45,703 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-11-28 12:39:45,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:39:45 BoogieIcfgContainer [2018-11-28 12:39:45,714 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:39:45,714 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:39:45,714 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:39:45,714 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:39:45,714 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:39:45" (3/4) ... [2018-11-28 12:39:45,716 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 12:39:45,718 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-11-28 12:39:45,745 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_d328dac1-c549-44d5-ac5c-637d95947a9e/bin-2019/uautomizer/witness.graphml [2018-11-28 12:39:45,746 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:39:45,746 INFO L168 Benchmark]: Toolchain (without parser) took 1401.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 951.7 MB in the beginning and 1.0 GB in the end (delta: -62.7 MB). Peak memory consumption was 101.4 MB. Max. memory is 11.5 GB. [2018-11-28 12:39:45,747 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:39:45,747 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 951.7 MB in the beginning and 1.2 GB in the end (delta: -200.2 MB). Peak memory consumption was 31.1 MB. Max. memory is 11.5 GB. [2018-11-28 12:39:45,747 INFO L168 Benchmark]: Boogie Preprocessor took 39.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-28 12:39:45,748 INFO L168 Benchmark]: RCFGBuilder took 363.28 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: 54.9 MB). Peak memory consumption was 54.9 MB. Max. memory is 11.5 GB. [2018-11-28 12:39:45,748 INFO L168 Benchmark]: TraceAbstraction took 640.30 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: 75.8 MB). Peak memory consumption was 75.8 MB. Max. memory is 11.5 GB. [2018-11-28 12:39:45,749 INFO L168 Benchmark]: Witness Printer took 31.83 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-28 12:39:45,751 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 323.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 951.7 MB in the beginning and 1.2 GB in the end (delta: -200.2 MB). Peak memory consumption was 31.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 363.28 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: 54.9 MB). Peak memory consumption was 54.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 640.30 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: 75.8 MB). Peak memory consumption was 75.8 MB. Max. memory is 11.5 GB. * Witness Printer took 31.83 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 626]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L627] int flag = 1; [L628] List a = (List) malloc(sizeof(struct node)); VAL [a={12:0}, flag=1, malloc(sizeof(struct node))={12:0}] [L629] COND FALSE !(a == 0) VAL [a={12:0}, flag=1, malloc(sizeof(struct node))={12:0}] [L630] List t; [L631] List l1; [L632] List l2; [L633] List b; [L634] List u; [L635] List p = a; VAL [a={12:0}, flag=1, malloc(sizeof(struct node))={12:0}, p={12:0}] [L636] COND FALSE !(__VERIFIER_nondet_int()) [L649] p->h = 3 VAL [a={12:0}, flag=1, malloc(sizeof(struct node))={12:0}, p={12:0}] [L650] EXPR a->h VAL [a={12:0}, a->h=3, flag=1, malloc(sizeof(struct node))={12:0}, p={12:0}] [L650] COND TRUE a->h == 3 [L650] return 0; VAL [\result=0, a={12:0}, flag=1, malloc(sizeof(struct node))={12:0}, p={12:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 85 locations, 29 error locations. UNSAFE Result, 0.5s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 171 SDtfs, 219 SDslu, 50 SDs, 0 SdLazy, 148 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=83occurred 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, 13 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 881 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 proved your program to be incorrect! Received shutdown request...