./Ultimate.py --spec /storage/repos/svcomp/c/properties/valid-memsafety.prp --file /storage/repos/svcomp/c/memsafety/test-0019_true-valid-memsafety_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/svcomp/c/memsafety/test-0019_true-valid-memsafety_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 cb3a1029b311511a929aa1b20bb93012329001e7 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 22:46:03,717 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 22:46:03,720 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 22:46:03,732 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 22:46:03,732 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 22:46:03,733 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 22:46:03,735 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 22:46:03,737 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 22:46:03,738 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 22:46:03,739 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 22:46:03,740 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 22:46:03,740 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 22:46:03,742 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 22:46:03,743 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 22:46:03,744 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 22:46:03,745 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 22:46:03,746 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 22:46:03,748 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 22:46:03,750 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 22:46:03,751 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 22:46:03,752 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 22:46:03,754 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 22:46:03,756 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 22:46:03,757 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 22:46:03,757 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 22:46:03,758 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 22:46:03,758 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 22:46:03,760 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 22:46:03,760 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 22:46:03,762 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 22:46:03,762 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 22:46:03,762 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 22:46:03,763 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 22:46:03,763 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 22:46:03,764 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 22:46:03,765 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 22:46:03,765 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-28 22:46:03,791 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 22:46:03,791 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 22:46:03,792 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 22:46:03,792 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 22:46:03,793 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 22:46:03,793 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 22:46:03,793 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 22:46:03,793 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 22:46:03,793 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 22:46:03,793 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 22:46:03,794 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 22:46:03,795 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 22:46:03,795 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 22:46:03,795 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-28 22:46:03,795 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-28 22:46:03,795 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-28 22:46:03,795 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 22:46:03,796 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 22:46:03,796 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 22:46:03,796 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 22:46:03,796 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 22:46:03,796 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 22:46:03,797 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 22:46:03,798 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 22:46:03,798 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 22:46:03,798 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 22:46:03,798 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 22:46:03,798 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 22:46:03,799 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> cb3a1029b311511a929aa1b20bb93012329001e7 [2018-11-28 22:46:03,835 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 22:46:03,847 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 22:46:03,851 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 22:46:03,852 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 22:46:03,852 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 22:46:03,853 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/memsafety/test-0019_true-valid-memsafety_true-termination.i [2018-11-28 22:46:03,905 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0616e282f/c66f5e0a53154aac8008f88164ba0aac/FLAGeb237437a [2018-11-28 22:46:04,380 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 22:46:04,381 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/memsafety/test-0019_true-valid-memsafety_true-termination.i [2018-11-28 22:46:04,393 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0616e282f/c66f5e0a53154aac8008f88164ba0aac/FLAGeb237437a [2018-11-28 22:46:04,672 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0616e282f/c66f5e0a53154aac8008f88164ba0aac [2018-11-28 22:46:04,677 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 22:46:04,678 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-28 22:46:04,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 22:46:04,680 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 22:46:04,683 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 22:46:04,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:46:04" (1/1) ... [2018-11-28 22:46:04,689 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d85d0d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:46:04, skipping insertion in model container [2018-11-28 22:46:04,689 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:46:04" (1/1) ... [2018-11-28 22:46:04,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 22:46:04,751 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 22:46:05,091 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 22:46:05,101 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 22:46:05,162 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 22:46:05,215 INFO L195 MainTranslator]: Completed translation [2018-11-28 22:46:05,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:46:05 WrapperNode [2018-11-28 22:46:05,215 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 22:46:05,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 22:46:05,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 22:46:05,216 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 22:46:05,299 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:46:05" (1/1) ... [2018-11-28 22:46:05,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:46:05" (1/1) ... [2018-11-28 22:46:05,314 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:46:05" (1/1) ... [2018-11-28 22:46:05,315 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:46:05" (1/1) ... [2018-11-28 22:46:05,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:46:05" (1/1) ... [2018-11-28 22:46:05,335 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:46:05" (1/1) ... [2018-11-28 22:46:05,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:46:05" (1/1) ... [2018-11-28 22:46:05,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 22:46:05,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 22:46:05,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 22:46:05,353 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 22:46:05,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:46:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 22:46:05,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 22:46:05,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 22:46:05,412 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_data [2018-11-28 22:46:05,412 INFO L138 BoogieDeclarations]: Found implementation of procedure free_data [2018-11-28 22:46:05,412 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 22:46:05,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-28 22:46:05,412 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-28 22:46:05,412 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-28 22:46:05,412 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-28 22:46:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-28 22:46:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-28 22:46:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-28 22:46:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-28 22:46:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-28 22:46:05,414 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-28 22:46:05,414 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-28 22:46:05,414 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-28 22:46:05,414 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-28 22:46:05,414 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-28 22:46:05,414 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-28 22:46:05,414 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-28 22:46:05,416 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-28 22:46:05,416 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-28 22:46:05,416 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-28 22:46:05,416 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-28 22:46:05,416 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-28 22:46:05,416 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-28 22:46:05,416 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-28 22:46:05,417 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-28 22:46:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-28 22:46:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-28 22:46:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-28 22:46:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-28 22:46:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-28 22:46:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-28 22:46:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-28 22:46:05,419 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-28 22:46:05,419 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-28 22:46:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-28 22:46:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-28 22:46:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-28 22:46:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-28 22:46:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-28 22:46:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-28 22:46:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-28 22:46:05,422 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-28 22:46:05,422 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-28 22:46:05,422 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-28 22:46:05,422 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-28 22:46:05,422 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-28 22:46:05,422 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-28 22:46:05,422 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-28 22:46:05,423 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-28 22:46:05,423 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-28 22:46:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-28 22:46:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-28 22:46:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-28 22:46:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-28 22:46:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-28 22:46:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-28 22:46:05,425 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-28 22:46:05,425 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-28 22:46:05,425 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-28 22:46:05,425 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-28 22:46:05,425 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-28 22:46:05,425 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-28 22:46:05,426 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-28 22:46:05,426 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-28 22:46:05,426 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-28 22:46:05,426 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-28 22:46:05,426 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-11-28 22:46:05,427 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-28 22:46:05,427 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-28 22:46:05,427 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-28 22:46:05,427 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-28 22:46:05,427 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-28 22:46:05,427 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-28 22:46:05,427 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-28 22:46:05,428 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-28 22:46:05,428 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-28 22:46:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-28 22:46:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-28 22:46:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-28 22:46:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-28 22:46:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-28 22:46:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-28 22:46:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-28 22:46:05,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-28 22:46:05,431 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-28 22:46:05,431 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-28 22:46:05,431 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-28 22:46:05,431 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-28 22:46:05,431 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-28 22:46:05,432 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-28 22:46:05,432 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-28 22:46:05,433 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-28 22:46:05,433 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-28 22:46:05,433 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-28 22:46:05,433 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-28 22:46:05,433 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-28 22:46:05,433 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-28 22:46:05,433 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-28 22:46:05,434 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-28 22:46:05,434 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-28 22:46:05,434 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-28 22:46:05,434 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-28 22:46:05,434 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-28 22:46:05,434 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_data [2018-11-28 22:46:05,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 22:46:05,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-28 22:46:05,436 INFO L130 BoogieDeclarations]: Found specification of procedure free_data [2018-11-28 22:46:05,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-28 22:46:05,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 22:46:05,437 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 22:46:05,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 22:46:05,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 22:46:06,204 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 22:46:06,205 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 22:46:06,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:46:06 BoogieIcfgContainer [2018-11-28 22:46:06,205 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 22:46:06,206 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 22:46:06,206 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 22:46:06,210 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 22:46:06,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 10:46:04" (1/3) ... [2018-11-28 22:46:06,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3138c926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:46:06, skipping insertion in model container [2018-11-28 22:46:06,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:46:05" (2/3) ... [2018-11-28 22:46:06,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3138c926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:46:06, skipping insertion in model container [2018-11-28 22:46:06,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:46:06" (3/3) ... [2018-11-28 22:46:06,215 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0019_true-valid-memsafety_true-termination.i [2018-11-28 22:46:06,226 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 22:46:06,234 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 21 error locations. [2018-11-28 22:46:06,252 INFO L257 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2018-11-28 22:46:06,278 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 22:46:06,279 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 22:46:06,279 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-28 22:46:06,279 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 22:46:06,280 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 22:46:06,280 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 22:46:06,280 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 22:46:06,280 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 22:46:06,280 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 22:46:06,298 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2018-11-28 22:46:06,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 22:46:06,309 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:46:06,310 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:46:06,312 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr4REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION]=== [2018-11-28 22:46:06,319 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:46:06,319 INFO L82 PathProgramCache]: Analyzing trace with hash 682489521, now seen corresponding path program 1 times [2018-11-28 22:46:06,321 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:46:06,322 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:46:06,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:46:06,372 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:46:06,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:46:06,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:46:06,558 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 22:46:06,560 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:46:06,561 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 22:46:06,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 22:46:06,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 22:46:06,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 22:46:06,579 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 5 states. [2018-11-28 22:46:06,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:46:06,996 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2018-11-28 22:46:06,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 22:46:06,998 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-11-28 22:46:06,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:46:07,009 INFO L225 Difference]: With dead ends: 52 [2018-11-28 22:46:07,009 INFO L226 Difference]: Without dead ends: 49 [2018-11-28 22:46:07,011 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 22:46:07,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-11-28 22:46:07,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-11-28 22:46:07,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-11-28 22:46:07,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2018-11-28 22:46:07,052 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 49 transitions. Word has length 9 [2018-11-28 22:46:07,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:46:07,053 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 49 transitions. [2018-11-28 22:46:07,053 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 22:46:07,053 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2018-11-28 22:46:07,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 22:46:07,054 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:46:07,054 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:46:07,055 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr4REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION]=== [2018-11-28 22:46:07,055 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:46:07,055 INFO L82 PathProgramCache]: Analyzing trace with hash 682489522, now seen corresponding path program 1 times [2018-11-28 22:46:07,055 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:46:07,055 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:46:07,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:46:07,057 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:46:07,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:46:07,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:46:07,380 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-28 22:46:07,448 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 22:46:07,449 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:46:07,449 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 22:46:07,451 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 22:46:07,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 22:46:07,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 22:46:07,452 INFO L87 Difference]: Start difference. First operand 49 states and 49 transitions. Second operand 5 states. [2018-11-28 22:46:07,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:46:07,983 INFO L93 Difference]: Finished difference Result 46 states and 46 transitions. [2018-11-28 22:46:07,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 22:46:07,984 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-11-28 22:46:07,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:46:07,986 INFO L225 Difference]: With dead ends: 46 [2018-11-28 22:46:07,986 INFO L226 Difference]: Without dead ends: 46 [2018-11-28 22:46:07,987 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 22:46:07,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-11-28 22:46:07,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-11-28 22:46:07,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-11-28 22:46:07,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2018-11-28 22:46:07,995 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 9 [2018-11-28 22:46:07,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:46:07,996 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2018-11-28 22:46:07,996 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 22:46:07,996 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2018-11-28 22:46:07,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 22:46:07,997 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:46:07,997 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:46:07,997 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr4REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION]=== [2018-11-28 22:46:07,997 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:46:07,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1257566989, now seen corresponding path program 1 times [2018-11-28 22:46:07,999 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:46:08,000 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:46:08,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:46:08,001 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:46:08,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:46:08,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:46:08,210 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 22:46:08,211 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:46:08,211 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 22:46:08,211 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 22:46:08,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 22:46:08,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-28 22:46:08,212 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand 7 states. [2018-11-28 22:46:08,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:46:08,475 INFO L93 Difference]: Finished difference Result 45 states and 45 transitions. [2018-11-28 22:46:08,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 22:46:08,476 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2018-11-28 22:46:08,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:46:08,477 INFO L225 Difference]: With dead ends: 45 [2018-11-28 22:46:08,477 INFO L226 Difference]: Without dead ends: 45 [2018-11-28 22:46:08,478 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-28 22:46:08,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-28 22:46:08,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-11-28 22:46:08,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-28 22:46:08,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2018-11-28 22:46:08,484 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 11 [2018-11-28 22:46:08,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:46:08,484 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2018-11-28 22:46:08,485 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 22:46:08,485 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2018-11-28 22:46:08,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-28 22:46:08,485 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:46:08,486 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:46:08,486 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr4REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION]=== [2018-11-28 22:46:08,486 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:46:08,486 INFO L82 PathProgramCache]: Analyzing trace with hash -611666587, now seen corresponding path program 1 times [2018-11-28 22:46:08,487 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:46:08,487 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:46:08,488 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:46:08,488 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:46:08,488 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:46:08,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:46:08,567 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 22:46:08,567 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:46:08,568 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 22:46:08,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 22:46:08,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 22:46:08,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:46:08,569 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand 3 states. [2018-11-28 22:46:08,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:46:08,637 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2018-11-28 22:46:08,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 22:46:08,638 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-11-28 22:46:08,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:46:08,640 INFO L225 Difference]: With dead ends: 41 [2018-11-28 22:46:08,640 INFO L226 Difference]: Without dead ends: 41 [2018-11-28 22:46:08,641 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:46:08,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-28 22:46:08,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-11-28 22:46:08,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-28 22:46:08,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2018-11-28 22:46:08,646 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 18 [2018-11-28 22:46:08,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:46:08,646 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2018-11-28 22:46:08,646 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 22:46:08,646 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2018-11-28 22:46:08,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-28 22:46:08,647 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:46:08,647 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:46:08,648 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr4REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION]=== [2018-11-28 22:46:08,648 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:46:08,648 INFO L82 PathProgramCache]: Analyzing trace with hash -611666586, now seen corresponding path program 1 times [2018-11-28 22:46:08,648 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:46:08,648 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:46:08,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:46:08,650 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:46:08,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:46:08,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:46:08,724 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 22:46:08,724 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:46:08,725 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 22:46:08,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 22:46:08,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 22:46:08,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:46:08,726 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand 3 states. [2018-11-28 22:46:08,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:46:08,764 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-11-28 22:46:08,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 22:46:08,765 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-11-28 22:46:08,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:46:08,765 INFO L225 Difference]: With dead ends: 37 [2018-11-28 22:46:08,766 INFO L226 Difference]: Without dead ends: 37 [2018-11-28 22:46:08,766 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 22:46:08,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-28 22:46:08,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-11-28 22:46:08,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-28 22:46:08,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2018-11-28 22:46:08,771 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 18 [2018-11-28 22:46:08,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:46:08,771 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2018-11-28 22:46:08,771 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 22:46:08,771 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2018-11-28 22:46:08,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-28 22:46:08,772 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:46:08,772 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:46:08,773 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr4REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION]=== [2018-11-28 22:46:08,773 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:46:08,773 INFO L82 PathProgramCache]: Analyzing trace with hash -2025856802, now seen corresponding path program 1 times [2018-11-28 22:46:08,774 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:46:08,775 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:46:08,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:46:08,776 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:46:08,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:46:08,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:46:09,098 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 22:46:09,099 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:46:09,099 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-28 22:46:09,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-28 22:46:09,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-28 22:46:09,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2018-11-28 22:46:09,101 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand 11 states. [2018-11-28 22:46:09,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:46:09,368 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2018-11-28 22:46:09,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-28 22:46:09,370 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2018-11-28 22:46:09,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:46:09,371 INFO L225 Difference]: With dead ends: 36 [2018-11-28 22:46:09,371 INFO L226 Difference]: Without dead ends: 36 [2018-11-28 22:46:09,372 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2018-11-28 22:46:09,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-28 22:46:09,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-11-28 22:46:09,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-28 22:46:09,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2018-11-28 22:46:09,378 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 25 [2018-11-28 22:46:09,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:46:09,378 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2018-11-28 22:46:09,378 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-28 22:46:09,378 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2018-11-28 22:46:09,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 22:46:09,379 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:46:09,379 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:46:09,381 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr4REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION]=== [2018-11-28 22:46:09,381 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:46:09,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1622948653, now seen corresponding path program 1 times [2018-11-28 22:46:09,382 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:46:09,382 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:46:09,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:46:09,384 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:46:09,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:46:09,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:46:09,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 22:46:09,740 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:46:09,740 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-28 22:46:09,741 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-28 22:46:09,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-28 22:46:09,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-11-28 22:46:09,742 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand 12 states. [2018-11-28 22:46:10,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:46:10,098 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2018-11-28 22:46:10,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 22:46:10,099 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 26 [2018-11-28 22:46:10,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:46:10,100 INFO L225 Difference]: With dead ends: 35 [2018-11-28 22:46:10,101 INFO L226 Difference]: Without dead ends: 35 [2018-11-28 22:46:10,102 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2018-11-28 22:46:10,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-28 22:46:10,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-11-28 22:46:10,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-28 22:46:10,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2018-11-28 22:46:10,105 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 26 [2018-11-28 22:46:10,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:46:10,105 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2018-11-28 22:46:10,106 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-28 22:46:10,106 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2018-11-28 22:46:10,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-28 22:46:10,106 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:46:10,107 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:46:10,107 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr4REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION]=== [2018-11-28 22:46:10,107 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:46:10,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1228199232, now seen corresponding path program 1 times [2018-11-28 22:46:10,107 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:46:10,107 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:46:10,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:46:10,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:46:10,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:46:10,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:46:10,461 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 22:46:10,462 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:46:10,462 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-28 22:46:10,462 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-28 22:46:10,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-28 22:46:10,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-11-28 22:46:10,463 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand 12 states. [2018-11-28 22:46:10,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:46:10,744 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2018-11-28 22:46:10,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-28 22:46:10,747 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 27 [2018-11-28 22:46:10,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:46:10,748 INFO L225 Difference]: With dead ends: 34 [2018-11-28 22:46:10,748 INFO L226 Difference]: Without dead ends: 34 [2018-11-28 22:46:10,749 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2018-11-28 22:46:10,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-28 22:46:10,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-28 22:46:10,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-28 22:46:10,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2018-11-28 22:46:10,752 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 27 [2018-11-28 22:46:10,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:46:10,752 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2018-11-28 22:46:10,752 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-28 22:46:10,752 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2018-11-28 22:46:10,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-28 22:46:10,753 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:46:10,753 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:46:10,754 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr4REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION]=== [2018-11-28 22:46:10,754 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:46:10,754 INFO L82 PathProgramCache]: Analyzing trace with hash 579824948, now seen corresponding path program 1 times [2018-11-28 22:46:10,754 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:46:10,754 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:46:10,755 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:46:10,755 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:46:10,755 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:46:10,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:46:11,126 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 12 [2018-11-28 22:46:11,559 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 22:46:11,559 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:46:11,560 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2018-11-28 22:46:11,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-28 22:46:11,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-28 22:46:11,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2018-11-28 22:46:11,561 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 17 states. [2018-11-28 22:46:12,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:46:12,632 INFO L93 Difference]: Finished difference Result 36 states and 35 transitions. [2018-11-28 22:46:12,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-28 22:46:12,633 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 28 [2018-11-28 22:46:12,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:46:12,634 INFO L225 Difference]: With dead ends: 36 [2018-11-28 22:46:12,634 INFO L226 Difference]: Without dead ends: 34 [2018-11-28 22:46:12,635 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=101, Invalid=711, Unknown=0, NotChecked=0, Total=812 [2018-11-28 22:46:12,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-28 22:46:12,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-28 22:46:12,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-28 22:46:12,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 33 transitions. [2018-11-28 22:46:12,638 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 33 transitions. Word has length 28 [2018-11-28 22:46:12,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:46:12,638 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 33 transitions. [2018-11-28 22:46:12,638 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-28 22:46:12,639 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 33 transitions. [2018-11-28 22:46:12,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-28 22:46:12,639 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:46:12,639 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:46:12,640 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr4REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION]=== [2018-11-28 22:46:12,640 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:46:12,640 INFO L82 PathProgramCache]: Analyzing trace with hash 580529551, now seen corresponding path program 1 times [2018-11-28 22:46:12,640 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:46:12,640 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:46:12,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:46:12,641 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:46:12,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:46:12,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:46:13,362 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 22:46:13,362 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:46:13,362 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2018-11-28 22:46:13,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-28 22:46:13,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-28 22:46:13,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=340, Unknown=0, NotChecked=0, Total=380 [2018-11-28 22:46:13,363 INFO L87 Difference]: Start difference. First operand 34 states and 33 transitions. Second operand 20 states. [2018-11-28 22:46:14,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:46:14,355 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2018-11-28 22:46:14,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-28 22:46:14,356 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 28 [2018-11-28 22:46:14,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:46:14,357 INFO L225 Difference]: With dead ends: 33 [2018-11-28 22:46:14,357 INFO L226 Difference]: Without dead ends: 33 [2018-11-28 22:46:14,358 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=150, Invalid=1040, Unknown=0, NotChecked=0, Total=1190 [2018-11-28 22:46:14,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-28 22:46:14,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-28 22:46:14,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-28 22:46:14,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 32 transitions. [2018-11-28 22:46:14,364 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 32 transitions. Word has length 28 [2018-11-28 22:46:14,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:46:14,365 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 32 transitions. [2018-11-28 22:46:14,365 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-28 22:46:14,366 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2018-11-28 22:46:14,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-28 22:46:14,366 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 22:46:14,367 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 22:46:14,368 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, alloc_dataErr1REQUIRES_VIOLATION, alloc_dataErr0REQUIRES_VIOLATION, alloc_dataErr2REQUIRES_VIOLATION, alloc_dataErr3REQUIRES_VIOLATION, free_dataErr8ASSERT_VIOLATIONMEMORY_FREE, free_dataErr10ASSERT_VIOLATIONMEMORY_FREE, free_dataErr11ASSERT_VIOLATIONMEMORY_FREE, free_dataErr4REQUIRES_VIOLATION, free_dataErr2REQUIRES_VIOLATION, free_dataErr3REQUIRES_VIOLATION, free_dataErr1REQUIRES_VIOLATION, free_dataErr6REQUIRES_VIOLATION, free_dataErr7REQUIRES_VIOLATION, free_dataErr5REQUIRES_VIOLATION, free_dataErr9ASSERT_VIOLATIONMEMORY_FREE, free_dataErr0REQUIRES_VIOLATION]=== [2018-11-28 22:46:14,368 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 22:46:14,368 INFO L82 PathProgramCache]: Analyzing trace with hash -943687815, now seen corresponding path program 1 times [2018-11-28 22:46:14,368 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 22:46:14,368 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 22:46:14,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:46:14,369 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 22:46:14,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 22:46:14,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 22:46:14,923 WARN L180 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 12 [2018-11-28 22:46:15,189 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 31 [2018-11-28 22:46:15,450 WARN L180 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 48 [2018-11-28 22:46:15,676 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 42 [2018-11-28 22:46:15,886 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 39 [2018-11-28 22:46:16,043 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 35 [2018-11-28 22:46:16,809 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 32 [2018-11-28 22:46:17,111 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 32 [2018-11-28 22:46:17,324 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 31 [2018-11-28 22:46:17,503 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 22:46:17,503 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 22:46:17,503 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2018-11-28 22:46:17,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-11-28 22:46:17,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-11-28 22:46:17,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=458, Unknown=0, NotChecked=0, Total=506 [2018-11-28 22:46:17,505 INFO L87 Difference]: Start difference. First operand 33 states and 32 transitions. Second operand 23 states. [2018-11-28 22:46:17,960 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2018-11-28 22:46:18,146 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 53 [2018-11-28 22:46:18,384 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 65 [2018-11-28 22:46:19,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 22:46:19,095 INFO L93 Difference]: Finished difference Result 32 states and 31 transitions. [2018-11-28 22:46:19,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-11-28 22:46:19,097 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 32 [2018-11-28 22:46:19,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 22:46:19,098 INFO L225 Difference]: With dead ends: 32 [2018-11-28 22:46:19,098 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 22:46:19,100 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=108, Invalid=948, Unknown=0, NotChecked=0, Total=1056 [2018-11-28 22:46:19,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 22:46:19,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 22:46:19,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 22:46:19,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 22:46:19,101 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2018-11-28 22:46:19,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 22:46:19,101 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 22:46:19,101 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-11-28 22:46:19,101 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 22:46:19,101 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 22:46:19,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 10:46:19 BoogieIcfgContainer [2018-11-28 22:46:19,107 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 22:46:19,107 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 22:46:19,108 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 22:46:19,108 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 22:46:19,108 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:46:06" (3/4) ... [2018-11-28 22:46:19,113 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 22:46:19,120 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 22:46:19,121 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure alloc_data [2018-11-28 22:46:19,121 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 22:46:19,121 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure free_data [2018-11-28 22:46:19,129 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2018-11-28 22:46:19,129 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-28 22:46:19,129 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 22:46:19,182 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 22:46:19,182 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 22:46:19,183 INFO L168 Benchmark]: Toolchain (without parser) took 14506.09 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 292.0 MB). Free memory was 951.4 MB in the beginning and 831.8 MB in the end (delta: 119.5 MB). Peak memory consumption was 411.5 MB. Max. memory is 11.5 GB. [2018-11-28 22:46:19,184 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 22:46:19,185 INFO L168 Benchmark]: CACSL2BoogieTranslator took 536.27 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 929.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-28 22:46:19,185 INFO L168 Benchmark]: Boogie Preprocessor took 136.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -191.2 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. [2018-11-28 22:46:19,186 INFO L168 Benchmark]: RCFGBuilder took 852.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 45.3 MB). Peak memory consumption was 45.3 MB. Max. memory is 11.5 GB. [2018-11-28 22:46:19,187 INFO L168 Benchmark]: TraceAbstraction took 12901.00 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 152.6 MB). Free memory was 1.1 GB in the beginning and 831.8 MB in the end (delta: 244.0 MB). Peak memory consumption was 396.5 MB. Max. memory is 11.5 GB. [2018-11-28 22:46:19,188 INFO L168 Benchmark]: Witness Printer took 74.80 ms. Allocated memory is still 1.3 GB. Free memory is still 831.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 22:46:19,191 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 536.27 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 929.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 136.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -191.2 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 852.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 45.3 MB). Peak memory consumption was 45.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 12901.00 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 152.6 MB). Free memory was 1.1 GB in the beginning and 831.8 MB in the end (delta: 244.0 MB). Peak memory consumption was 396.5 MB. Max. memory is 11.5 GB. * Witness Printer took 74.80 ms. Allocated memory is still 1.3 GB. Free memory is still 831.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 640]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 640]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 637]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 640]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 640]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 625]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 625]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 626]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 626]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 634]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 635]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 635]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 630]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 628]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 628]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 628]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 631]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 631]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 630]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 634]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 628]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 21 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 56 locations, 21 error locations. SAFE Result, 12.8s OverallTime, 11 OverallIterations, 1 TraceHistogramMax, 5.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 279 SDtfs, 233 SDslu, 954 SDs, 0 SdLazy, 1790 SolverSat, 98 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 181 GetRequests, 21 SyntacticMatches, 6 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 8.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred 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, 11 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 6.2s InterpolantComputationTime, 231 NumberOfCodeBlocks, 231 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 220 ConstructedInterpolants, 0 QuantifiedInterpolants, 64913 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...