./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/forester-heap/sll-token-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version f470102c Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/forester-heap/sll-token-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-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-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 60dcf5da7f0124de96473d8010137f60c5cb2803 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 20:20:31,981 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:20:31,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:20:31,995 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:20:31,995 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:20:31,996 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:20:31,998 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:20:32,000 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:20:32,002 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:20:32,003 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:20:32,004 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:20:32,005 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:20:32,005 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:20:32,006 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:20:32,008 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:20:32,010 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:20:32,011 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:20:32,012 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:20:32,017 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:20:32,021 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:20:32,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:20:32,026 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:20:32,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:20:32,029 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:20:32,035 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:20:32,036 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:20:32,036 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:20:32,039 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:20:32,040 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:20:32,041 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:20:32,041 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:20:32,043 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:20:32,043 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:20:32,044 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:20:32,049 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:20:32,050 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:20:32,051 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:20:32,051 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:20:32,052 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:20:32,055 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:20:32,057 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:20:32,057 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2019-11-28 20:20:32,072 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:20:32,072 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:20:32,074 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:20:32,074 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:20:32,074 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:20:32,075 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:20:32,075 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 20:20:32,075 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:20:32,075 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:20:32,075 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 20:20:32,076 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:20:32,076 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 20:20:32,076 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 20:20:32,076 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 20:20:32,076 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 20:20:32,077 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 20:20:32,077 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:20:32,077 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:20:32,077 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:20:32,077 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 20:20:32,078 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 20:20:32,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 20:20:32,078 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:20:32,079 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 20:20:32,079 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:20:32,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 20:20:32,079 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:20:32,080 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60dcf5da7f0124de96473d8010137f60c5cb2803 [2019-11-28 20:20:32,476 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:20:32,493 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:20:32,498 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:20:32,500 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:20:32,501 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:20:32,502 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/sll-token-1.i [2019-11-28 20:20:32,569 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d01af42f7/8c79e4a1efdb4337b358616a8ef2f5ba/FLAGb2cb72033 [2019-11-28 20:20:33,125 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:20:33,127 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-token-1.i [2019-11-28 20:20:33,141 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d01af42f7/8c79e4a1efdb4337b358616a8ef2f5ba/FLAGb2cb72033 [2019-11-28 20:20:33,445 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d01af42f7/8c79e4a1efdb4337b358616a8ef2f5ba [2019-11-28 20:20:33,448 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:20:33,450 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 20:20:33,451 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:20:33,451 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:20:33,454 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:20:33,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:20:33" (1/1) ... [2019-11-28 20:20:33,458 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5438bd97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:33, skipping insertion in model container [2019-11-28 20:20:33,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:20:33" (1/1) ... [2019-11-28 20:20:33,466 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:20:33,526 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:20:34,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:20:34,041 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:20:34,100 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:20:34,151 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:20:34,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:34 WrapperNode [2019-11-28 20:20:34,152 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:20:34,153 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:20:34,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:20:34,153 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:20:34,166 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:34" (1/1) ... [2019-11-28 20:20:34,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:34" (1/1) ... [2019-11-28 20:20:34,181 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:34" (1/1) ... [2019-11-28 20:20:34,181 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:34" (1/1) ... [2019-11-28 20:20:34,200 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:34" (1/1) ... [2019-11-28 20:20:34,208 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:34" (1/1) ... [2019-11-28 20:20:34,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:34" (1/1) ... [2019-11-28 20:20:34,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:20:34,219 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:20:34,219 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:20:34,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:20:34,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:34" (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 [2019-11-28 20:20:34,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 20:20:34,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:20:34,276 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 20:20:34,276 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-28 20:20:34,276 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-28 20:20:34,276 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-28 20:20:34,276 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-28 20:20:34,276 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-28 20:20:34,277 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-28 20:20:34,277 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-28 20:20:34,277 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-28 20:20:34,277 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-28 20:20:34,277 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-28 20:20:34,277 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-28 20:20:34,278 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-28 20:20:34,278 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-28 20:20:34,278 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-28 20:20:34,278 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-28 20:20:34,278 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-28 20:20:34,278 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-28 20:20:34,279 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-28 20:20:34,279 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-28 20:20:34,279 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-28 20:20:34,279 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-28 20:20:34,279 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-28 20:20:34,279 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-28 20:20:34,279 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-28 20:20:34,280 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-28 20:20:34,280 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-28 20:20:34,280 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-28 20:20:34,280 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-28 20:20:34,280 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-28 20:20:34,281 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-28 20:20:34,281 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-28 20:20:34,281 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-28 20:20:34,281 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-28 20:20:34,281 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-28 20:20:34,282 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-28 20:20:34,282 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-28 20:20:34,282 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-28 20:20:34,282 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-28 20:20:34,282 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-28 20:20:34,282 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-28 20:20:34,283 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-28 20:20:34,283 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-28 20:20:34,283 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-28 20:20:34,283 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-28 20:20:34,283 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-28 20:20:34,283 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-28 20:20:34,283 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-28 20:20:34,284 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-28 20:20:34,284 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-28 20:20:34,284 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-28 20:20:34,284 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-28 20:20:34,284 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-28 20:20:34,284 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-28 20:20:34,285 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-28 20:20:34,285 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-11-28 20:20:34,285 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-28 20:20:34,285 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-28 20:20:34,285 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-28 20:20:34,285 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-28 20:20:34,285 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-28 20:20:34,286 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-28 20:20:34,286 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-28 20:20:34,286 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-28 20:20:34,286 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-28 20:20:34,286 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-28 20:20:34,286 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-28 20:20:34,286 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-28 20:20:34,286 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-28 20:20:34,287 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-28 20:20:34,287 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-28 20:20:34,287 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-28 20:20:34,287 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-28 20:20:34,287 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-28 20:20:34,287 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-28 20:20:34,288 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-28 20:20:34,288 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-28 20:20:34,288 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-28 20:20:34,288 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-28 20:20:34,288 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-28 20:20:34,288 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-28 20:20:34,289 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-28 20:20:34,289 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-28 20:20:34,289 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-28 20:20:34,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-28 20:20:34,289 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-28 20:20:34,289 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-28 20:20:34,289 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-28 20:20:34,290 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-28 20:20:34,290 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-28 20:20:34,290 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-28 20:20:34,290 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-28 20:20:34,290 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-28 20:20:34,290 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-28 20:20:34,290 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-28 20:20:34,291 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-28 20:20:34,291 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-28 20:20:34,291 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-28 20:20:34,291 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-28 20:20:34,291 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-28 20:20:34,291 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-28 20:20:34,291 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-28 20:20:34,292 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-28 20:20:34,292 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-28 20:20:34,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-28 20:20:34,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-28 20:20:34,292 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 20:20:34,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 20:20:34,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-28 20:20:34,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 20:20:34,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-28 20:20:34,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 20:20:34,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 20:20:34,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 20:20:34,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:20:34,933 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:20:34,933 INFO L287 CfgBuilder]: Removed 15 assume(true) statements. [2019-11-28 20:20:34,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:20:34 BoogieIcfgContainer [2019-11-28 20:20:34,934 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:20:34,936 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 20:20:34,936 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 20:20:34,940 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 20:20:34,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:20:33" (1/3) ... [2019-11-28 20:20:34,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a83dc66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:20:34, skipping insertion in model container [2019-11-28 20:20:34,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:34" (2/3) ... [2019-11-28 20:20:34,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a83dc66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:20:34, skipping insertion in model container [2019-11-28 20:20:34,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:20:34" (3/3) ... [2019-11-28 20:20:34,945 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-token-1.i [2019-11-28 20:20:34,955 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 20:20:34,967 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 54 error locations. [2019-11-28 20:20:34,981 INFO L249 AbstractCegarLoop]: Starting to check reachability of 54 error locations. [2019-11-28 20:20:35,008 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 20:20:35,008 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 20:20:35,008 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 20:20:35,009 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:20:35,009 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:20:35,010 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 20:20:35,010 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:20:35,011 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 20:20:35,038 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states. [2019-11-28 20:20:35,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-28 20:20:35,049 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:35,050 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:20:35,061 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr29ASSERT_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr53ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19ASSERT_VIOLATIONMEMORY_LEAK, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr47ASSERT_VIOLATIONMEMORY_FREE, mainErr39ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_LEAK, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2019-11-28 20:20:35,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:35,068 INFO L82 PathProgramCache]: Analyzing trace with hash -1914108980, now seen corresponding path program 1 times [2019-11-28 20:20:35,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:35,078 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804895745] [2019-11-28 20:20:35,078 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:35,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:35,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:35,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:20:35,262 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804895745] [2019-11-28 20:20:35,263 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:20:35,263 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:20:35,268 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163725582] [2019-11-28 20:20:35,276 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:20:35,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:20:35,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:20:35,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:20:35,298 INFO L87 Difference]: Start difference. First operand 122 states. Second operand 4 states. [2019-11-28 20:20:35,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:20:35,644 INFO L93 Difference]: Finished difference Result 140 states and 143 transitions. [2019-11-28 20:20:35,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 20:20:35,646 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-28 20:20:35,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:20:35,657 INFO L225 Difference]: With dead ends: 140 [2019-11-28 20:20:35,658 INFO L226 Difference]: Without dead ends: 137 [2019-11-28 20:20:35,660 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:20:35,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2019-11-28 20:20:35,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 117. [2019-11-28 20:20:35,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2019-11-28 20:20:35,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 119 transitions. [2019-11-28 20:20:35,742 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 119 transitions. Word has length 7 [2019-11-28 20:20:35,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:20:35,743 INFO L462 AbstractCegarLoop]: Abstraction has 117 states and 119 transitions. [2019-11-28 20:20:35,743 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:20:35,743 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 119 transitions. [2019-11-28 20:20:35,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-28 20:20:35,744 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:35,745 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:20:35,746 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr29ASSERT_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr53ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19ASSERT_VIOLATIONMEMORY_LEAK, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr47ASSERT_VIOLATIONMEMORY_FREE, mainErr39ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_LEAK, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2019-11-28 20:20:35,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:35,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1914108979, now seen corresponding path program 1 times [2019-11-28 20:20:35,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:35,747 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244122405] [2019-11-28 20:20:35,747 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:35,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:35,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:35,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:20:35,868 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244122405] [2019-11-28 20:20:35,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:20:35,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:20:35,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645376609] [2019-11-28 20:20:35,870 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:20:35,871 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:20:35,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:20:35,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:20:35,872 INFO L87 Difference]: Start difference. First operand 117 states and 119 transitions. Second operand 4 states. [2019-11-28 20:20:36,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:20:36,120 INFO L93 Difference]: Finished difference Result 143 states and 145 transitions. [2019-11-28 20:20:36,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 20:20:36,121 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-28 20:20:36,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:20:36,123 INFO L225 Difference]: With dead ends: 143 [2019-11-28 20:20:36,123 INFO L226 Difference]: Without dead ends: 143 [2019-11-28 20:20:36,125 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:20:36,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2019-11-28 20:20:36,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 115. [2019-11-28 20:20:36,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-11-28 20:20:36,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 117 transitions. [2019-11-28 20:20:36,145 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 117 transitions. Word has length 7 [2019-11-28 20:20:36,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:20:36,146 INFO L462 AbstractCegarLoop]: Abstraction has 115 states and 117 transitions. [2019-11-28 20:20:36,146 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:20:36,146 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 117 transitions. [2019-11-28 20:20:36,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-28 20:20:36,147 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:36,148 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:20:36,148 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr29ASSERT_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr53ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19ASSERT_VIOLATIONMEMORY_LEAK, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr47ASSERT_VIOLATIONMEMORY_FREE, mainErr39ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_LEAK, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2019-11-28 20:20:36,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:36,149 INFO L82 PathProgramCache]: Analyzing trace with hash 889290307, now seen corresponding path program 1 times [2019-11-28 20:20:36,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:36,150 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920440548] [2019-11-28 20:20:36,150 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:36,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:36,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:36,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:20:36,262 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920440548] [2019-11-28 20:20:36,262 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:20:36,263 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 20:20:36,263 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098793146] [2019-11-28 20:20:36,263 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 20:20:36,264 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:20:36,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 20:20:36,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 20:20:36,264 INFO L87 Difference]: Start difference. First operand 115 states and 117 transitions. Second operand 5 states. [2019-11-28 20:20:36,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:20:36,668 INFO L93 Difference]: Finished difference Result 121 states and 124 transitions. [2019-11-28 20:20:36,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 20:20:36,669 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-11-28 20:20:36,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:20:36,670 INFO L225 Difference]: With dead ends: 121 [2019-11-28 20:20:36,670 INFO L226 Difference]: Without dead ends: 121 [2019-11-28 20:20:36,671 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:20:36,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-11-28 20:20:36,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 104. [2019-11-28 20:20:36,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-11-28 20:20:36,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 108 transitions. [2019-11-28 20:20:36,679 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 108 transitions. Word has length 12 [2019-11-28 20:20:36,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:20:36,680 INFO L462 AbstractCegarLoop]: Abstraction has 104 states and 108 transitions. [2019-11-28 20:20:36,680 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 20:20:36,680 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 108 transitions. [2019-11-28 20:20:36,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-28 20:20:36,681 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:36,681 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:20:36,681 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr29ASSERT_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr53ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19ASSERT_VIOLATIONMEMORY_LEAK, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr47ASSERT_VIOLATIONMEMORY_FREE, mainErr39ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_LEAK, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2019-11-28 20:20:36,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:36,682 INFO L82 PathProgramCache]: Analyzing trace with hash 889290308, now seen corresponding path program 1 times [2019-11-28 20:20:36,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:36,683 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729988719] [2019-11-28 20:20:36,683 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:36,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:36,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:36,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:20:36,750 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729988719] [2019-11-28 20:20:36,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:20:36,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 20:20:36,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16049208] [2019-11-28 20:20:36,752 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 20:20:36,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:20:36,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 20:20:36,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 20:20:36,753 INFO L87 Difference]: Start difference. First operand 104 states and 108 transitions. Second operand 5 states. [2019-11-28 20:20:37,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:20:37,120 INFO L93 Difference]: Finished difference Result 184 states and 188 transitions. [2019-11-28 20:20:37,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 20:20:37,120 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-11-28 20:20:37,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:20:37,122 INFO L225 Difference]: With dead ends: 184 [2019-11-28 20:20:37,122 INFO L226 Difference]: Without dead ends: 184 [2019-11-28 20:20:37,122 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:20:37,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2019-11-28 20:20:37,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 133. [2019-11-28 20:20:37,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2019-11-28 20:20:37,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 144 transitions. [2019-11-28 20:20:37,132 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 144 transitions. Word has length 12 [2019-11-28 20:20:37,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:20:37,132 INFO L462 AbstractCegarLoop]: Abstraction has 133 states and 144 transitions. [2019-11-28 20:20:37,132 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 20:20:37,132 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 144 transitions. [2019-11-28 20:20:37,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-28 20:20:37,133 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:37,133 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:20:37,133 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr29ASSERT_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr53ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19ASSERT_VIOLATIONMEMORY_LEAK, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr47ASSERT_VIOLATIONMEMORY_FREE, mainErr39ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_LEAK, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2019-11-28 20:20:37,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:37,134 INFO L82 PathProgramCache]: Analyzing trace with hash 1490170776, now seen corresponding path program 1 times [2019-11-28 20:20:37,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:37,134 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772369917] [2019-11-28 20:20:37,134 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:37,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:37,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:37,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:20:37,218 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772369917] [2019-11-28 20:20:37,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:20:37,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-28 20:20:37,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134555455] [2019-11-28 20:20:37,219 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 20:20:37,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:20:37,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 20:20:37,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-28 20:20:37,220 INFO L87 Difference]: Start difference. First operand 133 states and 144 transitions. Second operand 7 states. [2019-11-28 20:20:37,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:20:37,806 INFO L93 Difference]: Finished difference Result 200 states and 216 transitions. [2019-11-28 20:20:37,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 20:20:37,807 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2019-11-28 20:20:37,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:20:37,808 INFO L225 Difference]: With dead ends: 200 [2019-11-28 20:20:37,808 INFO L226 Difference]: Without dead ends: 200 [2019-11-28 20:20:37,809 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-11-28 20:20:37,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2019-11-28 20:20:37,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 132. [2019-11-28 20:20:37,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-11-28 20:20:37,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 143 transitions. [2019-11-28 20:20:37,818 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 143 transitions. Word has length 15 [2019-11-28 20:20:37,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:20:37,819 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 143 transitions. [2019-11-28 20:20:37,819 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 20:20:37,819 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 143 transitions. [2019-11-28 20:20:37,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-28 20:20:37,820 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:37,820 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:20:37,821 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr29ASSERT_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr53ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19ASSERT_VIOLATIONMEMORY_LEAK, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr47ASSERT_VIOLATIONMEMORY_FREE, mainErr39ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_LEAK, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2019-11-28 20:20:37,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:37,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1490170777, now seen corresponding path program 1 times [2019-11-28 20:20:37,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:37,822 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046749939] [2019-11-28 20:20:37,822 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:37,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:37,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:37,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:20:37,913 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046749939] [2019-11-28 20:20:37,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:20:37,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-28 20:20:37,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679492987] [2019-11-28 20:20:37,914 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 20:20:37,915 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:20:37,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 20:20:37,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-28 20:20:37,916 INFO L87 Difference]: Start difference. First operand 132 states and 143 transitions. Second operand 7 states. [2019-11-28 20:20:38,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:20:38,538 INFO L93 Difference]: Finished difference Result 222 states and 242 transitions. [2019-11-28 20:20:38,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-28 20:20:38,538 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2019-11-28 20:20:38,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:20:38,541 INFO L225 Difference]: With dead ends: 222 [2019-11-28 20:20:38,541 INFO L226 Difference]: Without dead ends: 222 [2019-11-28 20:20:38,541 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-11-28 20:20:38,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2019-11-28 20:20:38,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 118. [2019-11-28 20:20:38,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2019-11-28 20:20:38,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 128 transitions. [2019-11-28 20:20:38,548 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 128 transitions. Word has length 15 [2019-11-28 20:20:38,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:20:38,548 INFO L462 AbstractCegarLoop]: Abstraction has 118 states and 128 transitions. [2019-11-28 20:20:38,548 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 20:20:38,548 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 128 transitions. [2019-11-28 20:20:38,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-28 20:20:38,549 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:38,549 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:20:38,550 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr29ASSERT_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr53ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19ASSERT_VIOLATIONMEMORY_LEAK, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr47ASSERT_VIOLATIONMEMORY_FREE, mainErr39ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_LEAK, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2019-11-28 20:20:38,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:38,550 INFO L82 PathProgramCache]: Analyzing trace with hash -1077022969, now seen corresponding path program 1 times [2019-11-28 20:20:38,550 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:38,551 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272119471] [2019-11-28 20:20:38,551 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:38,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:38,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:38,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:20:38,617 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272119471] [2019-11-28 20:20:38,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:20:38,617 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 20:20:38,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396131808] [2019-11-28 20:20:38,617 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 20:20:38,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:20:38,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 20:20:38,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:20:38,618 INFO L87 Difference]: Start difference. First operand 118 states and 128 transitions. Second operand 6 states. [2019-11-28 20:20:38,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:20:38,868 INFO L93 Difference]: Finished difference Result 125 states and 131 transitions. [2019-11-28 20:20:38,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 20:20:38,868 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2019-11-28 20:20:38,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:20:38,869 INFO L225 Difference]: With dead ends: 125 [2019-11-28 20:20:38,869 INFO L226 Difference]: Without dead ends: 125 [2019-11-28 20:20:38,870 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-11-28 20:20:38,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2019-11-28 20:20:38,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 117. [2019-11-28 20:20:38,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2019-11-28 20:20:38,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 127 transitions. [2019-11-28 20:20:38,875 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 127 transitions. Word has length 16 [2019-11-28 20:20:38,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:20:38,876 INFO L462 AbstractCegarLoop]: Abstraction has 117 states and 127 transitions. [2019-11-28 20:20:38,876 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 20:20:38,876 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 127 transitions. [2019-11-28 20:20:38,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-28 20:20:38,877 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:38,877 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:20:38,878 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr29ASSERT_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr53ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19ASSERT_VIOLATIONMEMORY_LEAK, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr47ASSERT_VIOLATIONMEMORY_FREE, mainErr39ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_LEAK, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2019-11-28 20:20:38,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:38,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1077022968, now seen corresponding path program 1 times [2019-11-28 20:20:38,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:38,879 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558836170] [2019-11-28 20:20:38,879 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:38,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:38,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:38,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:20:38,984 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558836170] [2019-11-28 20:20:38,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:20:38,985 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 20:20:38,985 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808236473] [2019-11-28 20:20:38,985 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 20:20:38,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:20:38,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 20:20:38,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:20:38,986 INFO L87 Difference]: Start difference. First operand 117 states and 127 transitions. Second operand 6 states. [2019-11-28 20:20:39,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:20:39,251 INFO L93 Difference]: Finished difference Result 116 states and 126 transitions. [2019-11-28 20:20:39,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 20:20:39,252 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2019-11-28 20:20:39,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:20:39,253 INFO L225 Difference]: With dead ends: 116 [2019-11-28 20:20:39,253 INFO L226 Difference]: Without dead ends: 116 [2019-11-28 20:20:39,254 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-11-28 20:20:39,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2019-11-28 20:20:39,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2019-11-28 20:20:39,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2019-11-28 20:20:39,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 126 transitions. [2019-11-28 20:20:39,259 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 126 transitions. Word has length 16 [2019-11-28 20:20:39,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:20:39,259 INFO L462 AbstractCegarLoop]: Abstraction has 116 states and 126 transitions. [2019-11-28 20:20:39,259 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 20:20:39,259 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 126 transitions. [2019-11-28 20:20:39,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 20:20:39,260 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:39,260 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:20:39,261 INFO L410 AbstractCegarLoop]: === Iteration 9 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr29ASSERT_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr53ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19ASSERT_VIOLATIONMEMORY_LEAK, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr47ASSERT_VIOLATIONMEMORY_FREE, mainErr39ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_LEAK, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2019-11-28 20:20:39,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:39,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1830006328, now seen corresponding path program 1 times [2019-11-28 20:20:39,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:39,262 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169627599] [2019-11-28 20:20:39,262 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:39,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:39,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:39,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:20:39,318 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169627599] [2019-11-28 20:20:39,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:20:39,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-28 20:20:39,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248877000] [2019-11-28 20:20:39,319 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 20:20:39,319 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:20:39,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 20:20:39,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-28 20:20:39,320 INFO L87 Difference]: Start difference. First operand 116 states and 126 transitions. Second operand 7 states. [2019-11-28 20:20:39,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:20:39,710 INFO L93 Difference]: Finished difference Result 216 states and 236 transitions. [2019-11-28 20:20:39,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-28 20:20:39,710 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2019-11-28 20:20:39,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:20:39,712 INFO L225 Difference]: With dead ends: 216 [2019-11-28 20:20:39,712 INFO L226 Difference]: Without dead ends: 216 [2019-11-28 20:20:39,712 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-11-28 20:20:39,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2019-11-28 20:20:39,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 114. [2019-11-28 20:20:39,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-11-28 20:20:39,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 124 transitions. [2019-11-28 20:20:39,717 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 124 transitions. Word has length 17 [2019-11-28 20:20:39,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:20:39,718 INFO L462 AbstractCegarLoop]: Abstraction has 114 states and 124 transitions. [2019-11-28 20:20:39,718 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 20:20:39,718 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 124 transitions. [2019-11-28 20:20:39,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-28 20:20:39,719 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:39,719 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:20:39,719 INFO L410 AbstractCegarLoop]: === Iteration 10 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr29ASSERT_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr53ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19ASSERT_VIOLATIONMEMORY_LEAK, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr47ASSERT_VIOLATIONMEMORY_FREE, mainErr39ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_LEAK, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2019-11-28 20:20:39,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:39,720 INFO L82 PathProgramCache]: Analyzing trace with hash 2109432891, now seen corresponding path program 1 times [2019-11-28 20:20:39,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:39,721 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415831549] [2019-11-28 20:20:39,721 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:39,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:39,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:39,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:20:39,764 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415831549] [2019-11-28 20:20:39,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:20:39,765 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 20:20:39,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241847133] [2019-11-28 20:20:39,765 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 20:20:39,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:20:39,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 20:20:39,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 20:20:39,766 INFO L87 Difference]: Start difference. First operand 114 states and 124 transitions. Second operand 5 states. [2019-11-28 20:20:39,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:20:39,937 INFO L93 Difference]: Finished difference Result 168 states and 173 transitions. [2019-11-28 20:20:39,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 20:20:39,938 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2019-11-28 20:20:39,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:20:39,939 INFO L225 Difference]: With dead ends: 168 [2019-11-28 20:20:39,939 INFO L226 Difference]: Without dead ends: 168 [2019-11-28 20:20:39,939 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:20:39,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2019-11-28 20:20:39,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 112. [2019-11-28 20:20:39,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2019-11-28 20:20:39,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 122 transitions. [2019-11-28 20:20:39,942 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 122 transitions. Word has length 19 [2019-11-28 20:20:39,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:20:39,943 INFO L462 AbstractCegarLoop]: Abstraction has 112 states and 122 transitions. [2019-11-28 20:20:39,943 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 20:20:39,943 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 122 transitions. [2019-11-28 20:20:39,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-28 20:20:39,944 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:39,944 INFO L410 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] [2019-11-28 20:20:39,944 INFO L410 AbstractCegarLoop]: === Iteration 11 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr29ASSERT_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr53ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19ASSERT_VIOLATIONMEMORY_LEAK, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr47ASSERT_VIOLATIONMEMORY_FREE, mainErr39ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_LEAK, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2019-11-28 20:20:39,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:39,945 INFO L82 PathProgramCache]: Analyzing trace with hash -857536838, now seen corresponding path program 1 times [2019-11-28 20:20:39,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:39,945 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881855913] [2019-11-28 20:20:39,945 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:39,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:20:39,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:20:40,015 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:20:40,015 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 20:20:40,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:20:40 BoogieIcfgContainer [2019-11-28 20:20:40,046 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 20:20:40,047 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:20:40,047 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:20:40,047 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:20:40,048 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:20:34" (3/4) ... [2019-11-28 20:20:40,050 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 20:20:40,102 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:20:40,102 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:20:40,104 INFO L168 Benchmark]: Toolchain (without parser) took 6653.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 211.3 MB). Free memory was 960.4 MB in the beginning and 882.2 MB in the end (delta: 78.1 MB). Peak memory consumption was 289.4 MB. Max. memory is 11.5 GB. [2019-11-28 20:20:40,104 INFO L168 Benchmark]: CDTParser took 1.45 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:20:40,105 INFO L168 Benchmark]: CACSL2BoogieTranslator took 701.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -168.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:20:40,106 INFO L168 Benchmark]: Boogie Preprocessor took 65.11 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:20:40,106 INFO L168 Benchmark]: RCFGBuilder took 715.99 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: 57.5 MB). Peak memory consumption was 57.5 MB. Max. memory is 11.5 GB. [2019-11-28 20:20:40,107 INFO L168 Benchmark]: TraceAbstraction took 5110.26 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 70.8 MB). Free memory was 1.1 GB in the beginning and 882.2 MB in the end (delta: 177.3 MB). Peak memory consumption was 248.1 MB. Max. memory is 11.5 GB. [2019-11-28 20:20:40,107 INFO L168 Benchmark]: Witness Printer took 55.12 ms. Allocated memory is still 1.2 GB. Free memory is still 882.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:20:40,112 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.45 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 701.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -168.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 65.11 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 715.99 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: 57.5 MB). Peak memory consumption was 57.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5110.26 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 70.8 MB). Free memory was 1.1 GB in the beginning and 882.2 MB in the end (delta: 177.3 MB). Peak memory consumption was 248.1 MB. Max. memory is 11.5 GB. * Witness Printer took 55.12 ms. Allocated memory is still 1.2 GB. Free memory is still 882.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1020]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L992] SLL* head = malloc(sizeof(SLL)); VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L993] head->next = ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L994] head->data = 0 VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L996] SLL* x = head; VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L999] COND FALSE !(__VERIFIER_nondet_int()) [L1007] x->data = 1 VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1008] x->next = malloc(sizeof(SLL)) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-1:0}] [L1009] EXPR x->next VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-1:0}, x->next={-2:0}] [L1009] x->next->data = 2 VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-1:0}, x->next={-2:0}] [L1011] x = head VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-1:0}] [L1013] COND FALSE !(!(((void*)0) != x)) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-1:0}] [L1015] EXPR x->data VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-1:0}, x->data=1] [L1015] COND FALSE !(1 != x->data) [L1020] EXPR x->data VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-1:0}, x->data=1] [L1020] COND TRUE !(2 == x->data) [L1020] __VERIFIER_error() VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 122 locations, 54 error locations. Result: UNSAFE, OverallTime: 5.0s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 869 SDtfs, 1165 SDslu, 1440 SDs, 0 SdLazy, 2712 SolverSat, 107 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=133occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 454 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 160 NumberOfCodeBlocks, 160 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 126 ConstructedInterpolants, 0 QuantifiedInterpolants, 6202 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...