./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/forester-heap/dll-optional-2.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/dll-optional-2.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 8409443a6b8db5c0500e3e8aa54c33463c524ec9 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 20:20:01,024 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:20:01,026 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:20:01,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:20:01,039 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:20:01,040 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:20:01,041 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:20:01,043 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:20:01,045 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:20:01,046 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:20:01,047 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:20:01,049 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:20:01,049 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:20:01,050 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:20:01,051 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:20:01,052 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:20:01,053 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:20:01,054 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:20:01,056 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:20:01,058 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:20:01,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:20:01,061 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:20:01,062 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:20:01,063 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:20:01,068 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:20:01,068 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:20:01,069 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:20:01,070 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:20:01,070 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:20:01,073 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:20:01,073 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:20:01,074 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:20:01,075 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:20:01,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:20:01,079 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:20:01,079 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:20:01,081 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:20:01,081 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:20:01,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:20:01,084 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:20:01,086 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:20:01,087 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2019-11-28 20:20:01,109 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:20:01,110 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:20:01,111 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:20:01,112 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:20:01,112 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:20:01,112 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:20:01,112 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 20:20:01,112 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:20:01,113 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:20:01,113 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 20:20:01,114 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:20:01,114 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 20:20:01,114 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 20:20:01,115 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 20:20:01,115 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 20:20:01,115 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 20:20:01,115 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:20:01,115 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:20:01,116 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:20:01,116 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 20:20:01,116 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 20:20:01,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 20:20:01,117 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:20:01,117 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 20:20:01,117 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:20:01,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 20:20:01,118 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:20:01,118 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 -> 8409443a6b8db5c0500e3e8aa54c33463c524ec9 [2019-11-28 20:20:01,406 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:20:01,419 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:20:01,422 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:20:01,424 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:20:01,424 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:20:01,425 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/dll-optional-2.i [2019-11-28 20:20:01,500 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3f1871cf/49c170480d714f2db0718929f2a37843/FLAGa03c3af65 [2019-11-28 20:20:02,029 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:20:02,030 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-optional-2.i [2019-11-28 20:20:02,052 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3f1871cf/49c170480d714f2db0718929f2a37843/FLAGa03c3af65 [2019-11-28 20:20:02,327 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3f1871cf/49c170480d714f2db0718929f2a37843 [2019-11-28 20:20:02,331 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:20:02,333 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 20:20:02,334 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:20:02,335 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:20:02,338 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:20:02,339 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:20:02" (1/1) ... [2019-11-28 20:20:02,342 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58705288 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:02, skipping insertion in model container [2019-11-28 20:20:02,342 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:20:02" (1/1) ... [2019-11-28 20:20:02,350 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:20:02,403 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:20:02,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:20:02,841 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:20:02,915 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:20:02,977 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:20:02,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:02 WrapperNode [2019-11-28 20:20:02,978 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:20:02,980 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:20:02,980 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:20:02,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:20:02,994 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:02" (1/1) ... [2019-11-28 20:20:02,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:02" (1/1) ... [2019-11-28 20:20:03,010 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:02" (1/1) ... [2019-11-28 20:20:03,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:02" (1/1) ... [2019-11-28 20:20:03,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:02" (1/1) ... [2019-11-28 20:20:03,043 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:02" (1/1) ... [2019-11-28 20:20:03,047 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:02" (1/1) ... [2019-11-28 20:20:03,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:20:03,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:20:03,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:20:03,054 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:20:03,055 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:02" (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 20:20:03,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 20:20:03,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:20:03,121 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 20:20:03,122 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-28 20:20:03,122 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-28 20:20:03,122 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-28 20:20:03,122 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-28 20:20:03,122 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-28 20:20:03,122 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-28 20:20:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-28 20:20:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-28 20:20:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-28 20:20:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-28 20:20:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-28 20:20:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-28 20:20:03,124 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-28 20:20:03,124 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-28 20:20:03,124 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-28 20:20:03,124 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-28 20:20:03,124 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-28 20:20:03,124 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-28 20:20:03,125 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-28 20:20:03,125 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-28 20:20:03,125 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-28 20:20:03,125 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-28 20:20:03,125 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-28 20:20:03,126 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-28 20:20:03,127 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-28 20:20:03,128 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-28 20:20:03,129 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-28 20:20:03,129 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-28 20:20:03,129 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-28 20:20:03,130 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-28 20:20:03,130 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-28 20:20:03,130 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-28 20:20:03,130 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-28 20:20:03,131 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-28 20:20:03,131 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-28 20:20:03,131 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-28 20:20:03,131 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-28 20:20:03,132 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-28 20:20:03,132 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-28 20:20:03,132 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-28 20:20:03,132 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-28 20:20:03,133 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-28 20:20:03,133 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-28 20:20:03,135 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-28 20:20:03,135 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-28 20:20:03,135 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-28 20:20:03,135 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-28 20:20:03,135 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-28 20:20:03,136 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-28 20:20:03,136 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-28 20:20:03,136 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-28 20:20:03,136 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-28 20:20:03,137 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-28 20:20:03,137 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-28 20:20:03,137 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-11-28 20:20:03,139 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-28 20:20:03,139 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-28 20:20:03,140 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-28 20:20:03,140 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-28 20:20:03,140 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-28 20:20:03,140 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-28 20:20:03,140 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-28 20:20:03,141 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-28 20:20:03,141 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-28 20:20:03,141 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-28 20:20:03,141 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-28 20:20:03,142 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-28 20:20:03,142 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-28 20:20:03,143 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-28 20:20:03,143 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-28 20:20:03,144 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-28 20:20:03,144 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-28 20:20:03,145 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-28 20:20:03,145 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-28 20:20:03,146 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-28 20:20:03,146 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-28 20:20:03,146 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-28 20:20:03,146 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-28 20:20:03,147 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-28 20:20:03,147 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-28 20:20:03,147 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-28 20:20:03,148 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-28 20:20:03,148 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-28 20:20:03,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-28 20:20:03,148 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-28 20:20:03,148 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-28 20:20:03,149 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-28 20:20:03,149 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-28 20:20:03,149 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-28 20:20:03,149 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-28 20:20:03,149 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-28 20:20:03,150 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-28 20:20:03,150 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-28 20:20:03,150 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-28 20:20:03,150 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-28 20:20:03,150 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-28 20:20:03,151 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-28 20:20:03,151 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-28 20:20:03,151 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-28 20:20:03,151 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-28 20:20:03,151 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-28 20:20:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-28 20:20:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-28 20:20:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-28 20:20:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-28 20:20:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 20:20:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 20:20:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-28 20:20:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 20:20:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-28 20:20:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 20:20:03,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 20:20:03,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 20:20:03,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:20:03,868 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:20:03,868 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-28 20:20:03,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:20:03 BoogieIcfgContainer [2019-11-28 20:20:03,870 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:20:03,871 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 20:20:03,871 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 20:20:03,876 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 20:20:03,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:20:02" (1/3) ... [2019-11-28 20:20:03,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b2d4bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:20:03, skipping insertion in model container [2019-11-28 20:20:03,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:20:02" (2/3) ... [2019-11-28 20:20:03,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b2d4bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:20:03, skipping insertion in model container [2019-11-28 20:20:03,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:20:03" (3/3) ... [2019-11-28 20:20:03,881 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-optional-2.i [2019-11-28 20:20:03,891 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 20:20:03,910 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 66 error locations. [2019-11-28 20:20:03,926 INFO L249 AbstractCegarLoop]: Starting to check reachability of 66 error locations. [2019-11-28 20:20:03,953 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 20:20:03,954 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 20:20:03,954 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 20:20:03,954 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:20:03,955 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:20:03,955 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 20:20:03,955 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:20:03,955 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 20:20:03,974 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states. [2019-11-28 20:20:03,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-28 20:20:03,983 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:03,983 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:20:03,984 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr65ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr50ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-11-28 20:20:03,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:03,990 INFO L82 PathProgramCache]: Analyzing trace with hash 922504407, now seen corresponding path program 1 times [2019-11-28 20:20:03,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:03,998 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673998007] [2019-11-28 20:20:03,999 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:04,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:04,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:04,182 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 20:20:04,183 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673998007] [2019-11-28 20:20:04,184 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:20:04,185 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:20:04,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617765725] [2019-11-28 20:20:04,201 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:20:04,201 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:20:04,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:20:04,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:20:04,218 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 4 states. [2019-11-28 20:20:04,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:20:04,619 INFO L93 Difference]: Finished difference Result 140 states and 149 transitions. [2019-11-28 20:20:04,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 20:20:04,621 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-28 20:20:04,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:20:04,636 INFO L225 Difference]: With dead ends: 140 [2019-11-28 20:20:04,636 INFO L226 Difference]: Without dead ends: 136 [2019-11-28 20:20:04,643 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 20:20:04,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2019-11-28 20:20:04,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 130. [2019-11-28 20:20:04,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2019-11-28 20:20:04,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 140 transitions. [2019-11-28 20:20:04,728 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 140 transitions. Word has length 7 [2019-11-28 20:20:04,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:20:04,730 INFO L462 AbstractCegarLoop]: Abstraction has 130 states and 140 transitions. [2019-11-28 20:20:04,730 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:20:04,730 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 140 transitions. [2019-11-28 20:20:04,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-28 20:20:04,731 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:04,731 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:20:04,732 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr65ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr50ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-11-28 20:20:04,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:04,733 INFO L82 PathProgramCache]: Analyzing trace with hash 922504408, now seen corresponding path program 1 times [2019-11-28 20:20:04,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:04,734 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390455698] [2019-11-28 20:20:04,734 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:04,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:04,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:04,820 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 20:20:04,821 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390455698] [2019-11-28 20:20:04,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:20:04,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:20:04,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30819630] [2019-11-28 20:20:04,823 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:20:04,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:20:04,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:20:04,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:20:04,824 INFO L87 Difference]: Start difference. First operand 130 states and 140 transitions. Second operand 4 states. [2019-11-28 20:20:05,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:20:05,116 INFO L93 Difference]: Finished difference Result 125 states and 135 transitions. [2019-11-28 20:20:05,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 20:20:05,117 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-28 20:20:05,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:20:05,118 INFO L225 Difference]: With dead ends: 125 [2019-11-28 20:20:05,119 INFO L226 Difference]: Without dead ends: 125 [2019-11-28 20:20:05,119 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 20:20:05,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2019-11-28 20:20:05,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 121. [2019-11-28 20:20:05,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-11-28 20:20:05,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 131 transitions. [2019-11-28 20:20:05,129 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 131 transitions. Word has length 7 [2019-11-28 20:20:05,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:20:05,129 INFO L462 AbstractCegarLoop]: Abstraction has 121 states and 131 transitions. [2019-11-28 20:20:05,129 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:20:05,129 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 131 transitions. [2019-11-28 20:20:05,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-28 20:20:05,130 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:05,130 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:20:05,131 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr65ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr50ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-11-28 20:20:05,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:05,131 INFO L82 PathProgramCache]: Analyzing trace with hash 498932383, now seen corresponding path program 1 times [2019-11-28 20:20:05,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:05,132 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877994373] [2019-11-28 20:20:05,132 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:05,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:05,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:05,270 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 20:20:05,270 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877994373] [2019-11-28 20:20:05,271 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:20:05,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 20:20:05,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966892700] [2019-11-28 20:20:05,272 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 20:20:05,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:20:05,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 20:20:05,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:20:05,274 INFO L87 Difference]: Start difference. First operand 121 states and 131 transitions. Second operand 6 states. [2019-11-28 20:20:05,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:20:05,937 INFO L93 Difference]: Finished difference Result 243 states and 262 transitions. [2019-11-28 20:20:05,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 20:20:05,937 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-11-28 20:20:05,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:20:05,939 INFO L225 Difference]: With dead ends: 243 [2019-11-28 20:20:05,939 INFO L226 Difference]: Without dead ends: 243 [2019-11-28 20:20:05,940 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 20:20:05,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2019-11-28 20:20:05,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 120. [2019-11-28 20:20:05,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-11-28 20:20:05,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 130 transitions. [2019-11-28 20:20:05,958 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 130 transitions. Word has length 15 [2019-11-28 20:20:05,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:20:05,958 INFO L462 AbstractCegarLoop]: Abstraction has 120 states and 130 transitions. [2019-11-28 20:20:05,958 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 20:20:05,959 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 130 transitions. [2019-11-28 20:20:05,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-28 20:20:05,959 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:05,959 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:20:05,960 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr65ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr50ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-11-28 20:20:05,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:05,961 INFO L82 PathProgramCache]: Analyzing trace with hash 498932384, now seen corresponding path program 1 times [2019-11-28 20:20:05,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:05,961 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926240586] [2019-11-28 20:20:05,961 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:05,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:06,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:06,093 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 20:20:06,093 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926240586] [2019-11-28 20:20:06,093 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:20:06,096 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 20:20:06,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384753085] [2019-11-28 20:20:06,097 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 20:20:06,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:20:06,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 20:20:06,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:20:06,098 INFO L87 Difference]: Start difference. First operand 120 states and 130 transitions. Second operand 6 states. [2019-11-28 20:20:06,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:20:06,800 INFO L93 Difference]: Finished difference Result 217 states and 235 transitions. [2019-11-28 20:20:06,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 20:20:06,801 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-11-28 20:20:06,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:20:06,803 INFO L225 Difference]: With dead ends: 217 [2019-11-28 20:20:06,803 INFO L226 Difference]: Without dead ends: 217 [2019-11-28 20:20:06,804 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-11-28 20:20:06,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2019-11-28 20:20:06,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 119. [2019-11-28 20:20:06,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-11-28 20:20:06,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 129 transitions. [2019-11-28 20:20:06,813 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 129 transitions. Word has length 15 [2019-11-28 20:20:06,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:20:06,813 INFO L462 AbstractCegarLoop]: Abstraction has 119 states and 129 transitions. [2019-11-28 20:20:06,813 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 20:20:06,813 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 129 transitions. [2019-11-28 20:20:06,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 20:20:06,814 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:06,814 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 20:20:06,814 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr65ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr50ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-11-28 20:20:06,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:06,815 INFO L82 PathProgramCache]: Analyzing trace with hash -1429919314, now seen corresponding path program 1 times [2019-11-28 20:20:06,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:06,815 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30058212] [2019-11-28 20:20:06,815 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:06,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:06,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:06,889 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 20:20:06,890 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30058212] [2019-11-28 20:20:06,890 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:20:06,890 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 20:20:06,890 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254836351] [2019-11-28 20:20:06,891 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 20:20:06,891 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:20:06,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 20:20:06,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 20:20:06,892 INFO L87 Difference]: Start difference. First operand 119 states and 129 transitions. Second operand 5 states. [2019-11-28 20:20:07,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:20:07,183 INFO L93 Difference]: Finished difference Result 122 states and 131 transitions. [2019-11-28 20:20:07,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 20:20:07,184 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-28 20:20:07,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:20:07,185 INFO L225 Difference]: With dead ends: 122 [2019-11-28 20:20:07,186 INFO L226 Difference]: Without dead ends: 122 [2019-11-28 20:20:07,186 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 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 20:20:07,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2019-11-28 20:20:07,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 113. [2019-11-28 20:20:07,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-11-28 20:20:07,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 128 transitions. [2019-11-28 20:20:07,195 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 128 transitions. Word has length 17 [2019-11-28 20:20:07,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:20:07,195 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 128 transitions. [2019-11-28 20:20:07,195 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 20:20:07,196 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 128 transitions. [2019-11-28 20:20:07,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 20:20:07,196 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:07,196 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 20:20:07,197 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr65ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr50ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-11-28 20:20:07,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:07,197 INFO L82 PathProgramCache]: Analyzing trace with hash -1429919313, now seen corresponding path program 1 times [2019-11-28 20:20:07,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:07,198 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121969357] [2019-11-28 20:20:07,198 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:07,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:07,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:07,265 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 20:20:07,265 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121969357] [2019-11-28 20:20:07,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:20:07,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 20:20:07,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481238282] [2019-11-28 20:20:07,266 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 20:20:07,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:20:07,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 20:20:07,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 20:20:07,267 INFO L87 Difference]: Start difference. First operand 113 states and 128 transitions. Second operand 5 states. [2019-11-28 20:20:07,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:20:07,575 INFO L93 Difference]: Finished difference Result 158 states and 173 transitions. [2019-11-28 20:20:07,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 20:20:07,576 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-28 20:20:07,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:20:07,577 INFO L225 Difference]: With dead ends: 158 [2019-11-28 20:20:07,577 INFO L226 Difference]: Without dead ends: 158 [2019-11-28 20:20:07,580 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 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 20:20:07,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2019-11-28 20:20:07,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 134. [2019-11-28 20:20:07,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-11-28 20:20:07,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 155 transitions. [2019-11-28 20:20:07,589 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 155 transitions. Word has length 17 [2019-11-28 20:20:07,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:20:07,590 INFO L462 AbstractCegarLoop]: Abstraction has 134 states and 155 transitions. [2019-11-28 20:20:07,590 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 20:20:07,590 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 155 transitions. [2019-11-28 20:20:07,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-28 20:20:07,591 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:07,591 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 20:20:07,591 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr65ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr50ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-11-28 20:20:07,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:07,592 INFO L82 PathProgramCache]: Analyzing trace with hash 237074961, now seen corresponding path program 1 times [2019-11-28 20:20:07,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:07,592 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558836170] [2019-11-28 20:20:07,592 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:07,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:07,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:07,689 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 20:20:07,689 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558836170] [2019-11-28 20:20:07,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:20:07,690 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 20:20:07,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728251663] [2019-11-28 20:20:07,691 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 20:20:07,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:20:07,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 20:20:07,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:20:07,692 INFO L87 Difference]: Start difference. First operand 134 states and 155 transitions. Second operand 6 states. [2019-11-28 20:20:08,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:20:08,080 INFO L93 Difference]: Finished difference Result 179 states and 205 transitions. [2019-11-28 20:20:08,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 20:20:08,081 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2019-11-28 20:20:08,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:20:08,082 INFO L225 Difference]: With dead ends: 179 [2019-11-28 20:20:08,083 INFO L226 Difference]: Without dead ends: 179 [2019-11-28 20:20:08,083 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-28 20:20:08,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2019-11-28 20:20:08,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 133. [2019-11-28 20:20:08,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2019-11-28 20:20:08,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 153 transitions. [2019-11-28 20:20:08,090 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 153 transitions. Word has length 19 [2019-11-28 20:20:08,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:20:08,090 INFO L462 AbstractCegarLoop]: Abstraction has 133 states and 153 transitions. [2019-11-28 20:20:08,090 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 20:20:08,090 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 153 transitions. [2019-11-28 20:20:08,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-28 20:20:08,091 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:08,092 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 20:20:08,092 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr65ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr50ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-11-28 20:20:08,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:08,093 INFO L82 PathProgramCache]: Analyzing trace with hash 237074962, now seen corresponding path program 1 times [2019-11-28 20:20:08,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:08,093 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803256102] [2019-11-28 20:20:08,093 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:08,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:08,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:08,156 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 20:20:08,156 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803256102] [2019-11-28 20:20:08,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:20:08,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 20:20:08,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001831209] [2019-11-28 20:20:08,157 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 20:20:08,157 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:20:08,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 20:20:08,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:20:08,158 INFO L87 Difference]: Start difference. First operand 133 states and 153 transitions. Second operand 6 states. [2019-11-28 20:20:08,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:20:08,567 INFO L93 Difference]: Finished difference Result 199 states and 231 transitions. [2019-11-28 20:20:08,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 20:20:08,568 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2019-11-28 20:20:08,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:20:08,569 INFO L225 Difference]: With dead ends: 199 [2019-11-28 20:20:08,569 INFO L226 Difference]: Without dead ends: 199 [2019-11-28 20:20:08,570 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 20:20:08,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2019-11-28 20:20:08,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 132. [2019-11-28 20:20:08,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-11-28 20:20:08,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 151 transitions. [2019-11-28 20:20:08,575 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 151 transitions. Word has length 19 [2019-11-28 20:20:08,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:20:08,575 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 151 transitions. [2019-11-28 20:20:08,575 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 20:20:08,575 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 151 transitions. [2019-11-28 20:20:08,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-28 20:20:08,576 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:08,576 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] [2019-11-28 20:20:08,577 INFO L410 AbstractCegarLoop]: === Iteration 9 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr65ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr50ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-11-28 20:20:08,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:08,577 INFO L82 PathProgramCache]: Analyzing trace with hash 1719821211, now seen corresponding path program 1 times [2019-11-28 20:20:08,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:08,578 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566627564] [2019-11-28 20:20:08,578 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:08,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:08,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:20:08,616 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 20:20:08,616 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566627564] [2019-11-28 20:20:08,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:20:08,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 20:20:08,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130945138] [2019-11-28 20:20:08,617 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 20:20:08,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:20:08,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 20:20:08,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 20:20:08,618 INFO L87 Difference]: Start difference. First operand 132 states and 151 transitions. Second operand 5 states. [2019-11-28 20:20:08,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:20:08,844 INFO L93 Difference]: Finished difference Result 149 states and 164 transitions. [2019-11-28 20:20:08,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 20:20:08,845 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-28 20:20:08,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:20:08,846 INFO L225 Difference]: With dead ends: 149 [2019-11-28 20:20:08,846 INFO L226 Difference]: Without dead ends: 149 [2019-11-28 20:20:08,846 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 20:20:08,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2019-11-28 20:20:08,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 132. [2019-11-28 20:20:08,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-11-28 20:20:08,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 149 transitions. [2019-11-28 20:20:08,851 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 149 transitions. Word has length 22 [2019-11-28 20:20:08,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:20:08,851 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 149 transitions. [2019-11-28 20:20:08,851 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 20:20:08,851 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 149 transitions. [2019-11-28 20:20:08,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-28 20:20:08,852 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:20:08,852 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] [2019-11-28 20:20:08,853 INFO L410 AbstractCegarLoop]: === Iteration 10 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr65ENSURES_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr50ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr58REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2019-11-28 20:20:08,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:20:08,853 INFO L82 PathProgramCache]: Analyzing trace with hash 1797605623, now seen corresponding path program 1 times [2019-11-28 20:20:08,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:20:08,853 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848638234] [2019-11-28 20:20:08,854 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:20:08,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:20:08,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:20:08,925 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:20:08,925 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 20:20:08,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:20:08 BoogieIcfgContainer [2019-11-28 20:20:08,964 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 20:20:08,964 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:20:08,965 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:20:08,965 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:20:08,966 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:20:03" (3/4) ... [2019-11-28 20:20:08,968 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 20:20:09,016 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:20:09,017 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:20:09,020 INFO L168 Benchmark]: Toolchain (without parser) took 6685.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 216.0 MB). Free memory was 961.7 MB in the beginning and 871.9 MB in the end (delta: 89.8 MB). Peak memory consumption was 305.9 MB. Max. memory is 11.5 GB. [2019-11-28 20:20:09,020 INFO L168 Benchmark]: CDTParser took 0.25 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 20:20:09,021 INFO L168 Benchmark]: CACSL2BoogieTranslator took 644.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -164.3 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2019-11-28 20:20:09,022 INFO L168 Benchmark]: Boogie Preprocessor took 73.43 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 20:20:09,023 INFO L168 Benchmark]: RCFGBuilder took 816.38 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: 65.1 MB). Peak memory consumption was 65.1 MB. Max. memory is 11.5 GB. [2019-11-28 20:20:09,024 INFO L168 Benchmark]: TraceAbstraction took 5092.98 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 71.3 MB). Free memory was 1.1 GB in the beginning and 879.6 MB in the end (delta: 174.6 MB). Peak memory consumption was 245.9 MB. Max. memory is 11.5 GB. [2019-11-28 20:20:09,025 INFO L168 Benchmark]: Witness Printer took 52.70 ms. Allocated memory is still 1.2 GB. Free memory was 879.6 MB in the beginning and 871.9 MB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:20:09,028 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 644.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -164.3 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 73.43 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 816.38 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: 65.1 MB). Peak memory consumption was 65.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5092.98 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 71.3 MB). Free memory was 1.1 GB in the beginning and 879.6 MB in the end (delta: 174.6 MB). Peak memory consumption was 245.9 MB. Max. memory is 11.5 GB. * Witness Printer took 52.70 ms. Allocated memory is still 1.2 GB. Free memory was 879.6 MB in the beginning and 871.9 MB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 998]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L986] SLL* head = malloc(sizeof(SLL)); VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L987] head->next = ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L988] head->prev = ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] COND FALSE !(__VERIFIER_nondet_int()) [L989] head->data = 0 VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L989] head->opt = head VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L990] SLL* x = head; VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L992] COND FALSE !(__VERIFIER_nondet_int()) [L995] x = head VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L996] COND TRUE x != ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L998] EXPR x->data VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->data=0] [L998] EXPR x->data == 2 && x->opt == x VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->data=0, x->data == 2 && x->opt == x=0] [L998] COND TRUE !(x->data == 2 && x->opt == x) [L998] __VERIFIER_error() VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 140 locations, 66 error locations. Result: UNSAFE, OverallTime: 4.9s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 899 SDtfs, 1029 SDslu, 1191 SDs, 0 SdLazy, 2887 SolverSat, 112 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=140occurred in iteration=0, 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, 9 MinimizatonAttempts, 394 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 161 NumberOfCodeBlocks, 161 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 129 ConstructedInterpolants, 0 QuantifiedInterpolants, 7722 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...