./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/forester-heap/dll-token-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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-token-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 1d66a07d2a90ded112831066684eab385c0c1369 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.25-9a8b2e8 [2020-10-20 06:18:36,857 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:18:36,860 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:18:36,904 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:18:36,905 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:18:36,918 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:18:36,919 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:18:36,922 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:18:36,925 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:18:36,927 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:18:36,928 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:18:36,931 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:18:36,931 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:18:36,936 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:18:36,937 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:18:36,939 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:18:36,941 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:18:36,942 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:18:36,945 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:18:36,959 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:18:36,962 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:18:36,963 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:18:36,965 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:18:36,966 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:18:36,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:18:36,971 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:18:36,971 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:18:36,973 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:18:36,973 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:18:36,974 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:18:36,974 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:18:36,975 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:18:36,977 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:18:36,977 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:18:36,979 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:18:36,979 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:18:36,980 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:18:36,980 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:18:36,980 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:18:36,981 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:18:36,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:18:36,983 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2020-10-20 06:18:37,030 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:18:37,030 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:18:37,032 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:18:37,032 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:18:37,032 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:18:37,033 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:18:37,033 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 06:18:37,033 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:18:37,033 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:18:37,033 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 06:18:37,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:18:37,035 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 06:18:37,035 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 06:18:37,036 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 06:18:37,036 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 06:18:37,036 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 06:18:37,036 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:18:37,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:18:37,037 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:18:37,037 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 06:18:37,037 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 06:18:37,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:18:37,037 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:18:37,038 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 06:18:37,038 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:18:37,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 06:18:37,038 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:18:37,038 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 -> 1d66a07d2a90ded112831066684eab385c0c1369 [2020-10-20 06:18:37,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:18:37,253 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:18:37,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:18:37,257 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:18:37,258 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:18:37,258 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/dll-token-2.i [2020-10-20 06:18:37,331 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99f47e378/5055558fa35948f2a581d1473a001f42/FLAGa97a9e9db [2020-10-20 06:18:37,909 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:18:37,910 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-token-2.i [2020-10-20 06:18:37,926 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99f47e378/5055558fa35948f2a581d1473a001f42/FLAGa97a9e9db [2020-10-20 06:18:38,222 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99f47e378/5055558fa35948f2a581d1473a001f42 [2020-10-20 06:18:38,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:18:38,234 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 06:18:38,236 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:18:38,236 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:18:38,240 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:18:38,242 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:18:38" (1/1) ... [2020-10-20 06:18:38,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@230e88a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:38, skipping insertion in model container [2020-10-20 06:18:38,246 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:18:38" (1/1) ... [2020-10-20 06:18:38,255 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:18:38,320 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:18:38,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:18:38,846 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:18:38,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:18:38,989 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:18:38,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:38 WrapperNode [2020-10-20 06:18:38,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:18:38,992 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:18:38,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:18:38,992 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:18:39,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:38" (1/1) ... [2020-10-20 06:18:39,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:38" (1/1) ... [2020-10-20 06:18:39,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:38" (1/1) ... [2020-10-20 06:18:39,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:38" (1/1) ... [2020-10-20 06:18:39,040 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:38" (1/1) ... [2020-10-20 06:18:39,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:38" (1/1) ... [2020-10-20 06:18:39,053 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:38" (1/1) ... [2020-10-20 06:18:39,060 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:18:39,061 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:18:39,061 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:18:39,061 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:18:39,062 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:38" (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 [2020-10-20 06:18:39,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-20 06:18:39,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:18:39,138 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-20 06:18:39,138 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-20 06:18:39,138 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-20 06:18:39,139 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-20 06:18:39,139 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-20 06:18:39,139 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-20 06:18:39,139 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-20 06:18:39,139 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-20 06:18:39,140 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-20 06:18:39,140 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-20 06:18:39,140 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-20 06:18:39,140 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-20 06:18:39,141 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-20 06:18:39,141 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-20 06:18:39,141 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-20 06:18:39,141 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-20 06:18:39,141 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-20 06:18:39,142 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-20 06:18:39,142 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-20 06:18:39,142 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-20 06:18:39,142 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-20 06:18:39,142 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-20 06:18:39,143 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-20 06:18:39,143 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-20 06:18:39,143 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-20 06:18:39,143 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-20 06:18:39,143 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-20 06:18:39,143 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-20 06:18:39,143 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-20 06:18:39,144 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-20 06:18:39,144 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-20 06:18:39,144 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-20 06:18:39,144 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-20 06:18:39,144 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-20 06:18:39,144 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-20 06:18:39,145 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-20 06:18:39,145 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-20 06:18:39,145 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-20 06:18:39,145 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-20 06:18:39,145 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-20 06:18:39,145 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-20 06:18:39,145 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-20 06:18:39,146 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-20 06:18:39,146 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-20 06:18:39,146 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-20 06:18:39,146 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-20 06:18:39,146 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-20 06:18:39,146 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-20 06:18:39,147 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-20 06:18:39,147 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-20 06:18:39,147 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-20 06:18:39,147 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-20 06:18:39,147 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-20 06:18:39,147 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-20 06:18:39,147 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-20 06:18:39,148 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-20 06:18:39,148 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-20 06:18:39,148 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-20 06:18:39,148 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-20 06:18:39,148 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-20 06:18:39,148 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-20 06:18:39,148 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-20 06:18:39,149 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-20 06:18:39,149 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-20 06:18:39,149 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-20 06:18:39,149 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-20 06:18:39,149 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-20 06:18:39,149 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-20 06:18:39,149 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-20 06:18:39,150 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-20 06:18:39,150 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-20 06:18:39,150 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-20 06:18:39,150 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-20 06:18:39,150 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-20 06:18:39,150 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-20 06:18:39,150 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-20 06:18:39,151 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-20 06:18:39,151 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-20 06:18:39,151 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-20 06:18:39,151 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-20 06:18:39,151 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-20 06:18:39,151 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-20 06:18:39,151 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-20 06:18:39,152 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-20 06:18:39,152 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-20 06:18:39,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-20 06:18:39,152 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-20 06:18:39,152 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-20 06:18:39,152 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-20 06:18:39,152 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-20 06:18:39,153 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-20 06:18:39,153 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-20 06:18:39,153 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-20 06:18:39,153 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-20 06:18:39,153 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-20 06:18:39,153 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-20 06:18:39,153 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-20 06:18:39,153 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-20 06:18:39,154 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-20 06:18:39,154 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-20 06:18:39,154 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-20 06:18:39,154 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-20 06:18:39,154 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-20 06:18:39,154 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-20 06:18:39,154 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-20 06:18:39,155 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-20 06:18:39,155 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-20 06:18:39,155 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-20 06:18:39,155 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-20 06:18:39,155 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-20 06:18:39,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 06:18:39,155 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-20 06:18:39,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-20 06:18:39,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-20 06:18:39,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 06:18:39,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-20 06:18:39,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 06:18:39,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 06:18:39,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-20 06:18:39,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 06:18:39,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:18:39,965 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:18:39,965 INFO L298 CfgBuilder]: Removed 15 assume(true) statements. [2020-10-20 06:18:39,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:18:39 BoogieIcfgContainer [2020-10-20 06:18:39,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:18:39,971 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 06:18:39,971 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 06:18:39,975 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 06:18:39,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 06:18:38" (1/3) ... [2020-10-20 06:18:39,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7174008d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:18:39, skipping insertion in model container [2020-10-20 06:18:39,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:38" (2/3) ... [2020-10-20 06:18:39,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7174008d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:18:39, skipping insertion in model container [2020-10-20 06:18:39,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:18:39" (3/3) ... [2020-10-20 06:18:39,984 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-token-2.i [2020-10-20 06:18:39,997 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 06:18:40,008 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 59 error locations. [2020-10-20 06:18:40,023 INFO L253 AbstractCegarLoop]: Starting to check reachability of 59 error locations. [2020-10-20 06:18:40,043 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 06:18:40,043 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-20 06:18:40,043 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 06:18:40,043 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:18:40,044 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:18:40,044 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 06:18:40,044 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:18:40,044 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 06:18:40,064 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states. [2020-10-20 06:18:40,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 06:18:40,074 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:40,075 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:40,076 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:18:40,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:40,083 INFO L82 PathProgramCache]: Analyzing trace with hash 2013402738, now seen corresponding path program 1 times [2020-10-20 06:18:40,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:40,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596632257] [2020-10-20 06:18:40,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:40,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:40,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:40,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:40,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:40,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596632257] [2020-10-20 06:18:40,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:40,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 06:18:40,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116332592] [2020-10-20 06:18:40,355 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:18:40,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:40,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:18:40,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:18:40,375 INFO L87 Difference]: Start difference. First operand 144 states. Second operand 4 states. [2020-10-20 06:18:40,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:40,764 INFO L93 Difference]: Finished difference Result 152 states and 161 transitions. [2020-10-20 06:18:40,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:18:40,766 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-20 06:18:40,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:40,778 INFO L225 Difference]: With dead ends: 152 [2020-10-20 06:18:40,779 INFO L226 Difference]: Without dead ends: 149 [2020-10-20 06:18:40,781 INFO L677 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 [2020-10-20 06:18:40,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-10-20 06:18:40,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 130. [2020-10-20 06:18:40,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-20 06:18:40,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 137 transitions. [2020-10-20 06:18:40,833 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 137 transitions. Word has length 7 [2020-10-20 06:18:40,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:40,834 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 137 transitions. [2020-10-20 06:18:40,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:18:40,834 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 137 transitions. [2020-10-20 06:18:40,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 06:18:40,835 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:40,835 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:40,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 06:18:40,836 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:18:40,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:40,836 INFO L82 PathProgramCache]: Analyzing trace with hash 2013402739, now seen corresponding path program 1 times [2020-10-20 06:18:40,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:40,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322287016] [2020-10-20 06:18:40,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:40,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:40,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:40,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:40,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:40,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322287016] [2020-10-20 06:18:40,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:40,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 06:18:40,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946521767] [2020-10-20 06:18:40,948 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:18:40,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:40,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:18:40,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:18:40,949 INFO L87 Difference]: Start difference. First operand 130 states and 137 transitions. Second operand 4 states. [2020-10-20 06:18:41,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:41,234 INFO L93 Difference]: Finished difference Result 154 states and 162 transitions. [2020-10-20 06:18:41,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:18:41,234 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-20 06:18:41,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:41,237 INFO L225 Difference]: With dead ends: 154 [2020-10-20 06:18:41,237 INFO L226 Difference]: Without dead ends: 154 [2020-10-20 06:18:41,238 INFO L677 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 [2020-10-20 06:18:41,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-10-20 06:18:41,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 127. [2020-10-20 06:18:41,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-20 06:18:41,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 134 transitions. [2020-10-20 06:18:41,251 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 134 transitions. Word has length 7 [2020-10-20 06:18:41,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:41,251 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 134 transitions. [2020-10-20 06:18:41,251 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:18:41,252 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 134 transitions. [2020-10-20 06:18:41,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 06:18:41,252 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:41,253 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:41,253 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 06:18:41,254 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:18:41,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:41,254 INFO L82 PathProgramCache]: Analyzing trace with hash 735708995, now seen corresponding path program 1 times [2020-10-20 06:18:41,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:41,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985158806] [2020-10-20 06:18:41,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:41,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:41,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:41,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:41,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:41,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985158806] [2020-10-20 06:18:41,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:41,425 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 06:18:41,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544241037] [2020-10-20 06:18:41,426 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 06:18:41,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:41,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:18:41,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:18:41,430 INFO L87 Difference]: Start difference. First operand 127 states and 134 transitions. Second operand 5 states. [2020-10-20 06:18:41,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:41,782 INFO L93 Difference]: Finished difference Result 130 states and 139 transitions. [2020-10-20 06:18:41,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 06:18:41,783 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-20 06:18:41,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:41,784 INFO L225 Difference]: With dead ends: 130 [2020-10-20 06:18:41,785 INFO L226 Difference]: Without dead ends: 130 [2020-10-20 06:18:41,786 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:18:41,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-10-20 06:18:41,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 114. [2020-10-20 06:18:41,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-20 06:18:41,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 123 transitions. [2020-10-20 06:18:41,798 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 123 transitions. Word has length 13 [2020-10-20 06:18:41,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:41,799 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 123 transitions. [2020-10-20 06:18:41,799 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 06:18:41,799 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 123 transitions. [2020-10-20 06:18:41,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 06:18:41,812 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:41,813 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:41,813 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 06:18:41,814 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:18:41,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:41,818 INFO L82 PathProgramCache]: Analyzing trace with hash 735708996, now seen corresponding path program 1 times [2020-10-20 06:18:41,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:41,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314757693] [2020-10-20 06:18:41,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:41,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:41,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:41,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:41,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:41,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314757693] [2020-10-20 06:18:41,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:41,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 06:18:41,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918240519] [2020-10-20 06:18:41,918 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 06:18:41,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:41,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:18:41,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:18:41,919 INFO L87 Difference]: Start difference. First operand 114 states and 123 transitions. Second operand 5 states. [2020-10-20 06:18:42,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:42,346 INFO L93 Difference]: Finished difference Result 200 states and 213 transitions. [2020-10-20 06:18:42,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 06:18:42,348 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-20 06:18:42,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:42,353 INFO L225 Difference]: With dead ends: 200 [2020-10-20 06:18:42,353 INFO L226 Difference]: Without dead ends: 200 [2020-10-20 06:18:42,354 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:18:42,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-10-20 06:18:42,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 149. [2020-10-20 06:18:42,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-10-20 06:18:42,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 169 transitions. [2020-10-20 06:18:42,369 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 169 transitions. Word has length 13 [2020-10-20 06:18:42,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:42,370 INFO L481 AbstractCegarLoop]: Abstraction has 149 states and 169 transitions. [2020-10-20 06:18:42,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 06:18:42,370 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 169 transitions. [2020-10-20 06:18:42,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-20 06:18:42,371 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:42,371 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:42,371 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 06:18:42,372 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:18:42,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:42,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1653236418, now seen corresponding path program 1 times [2020-10-20 06:18:42,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:42,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213228450] [2020-10-20 06:18:42,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:42,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:42,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:42,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:42,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:42,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213228450] [2020-10-20 06:18:42,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:42,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 06:18:42,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143691298] [2020-10-20 06:18:42,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 06:18:42,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:42,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:18:42,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:18:42,449 INFO L87 Difference]: Start difference. First operand 149 states and 169 transitions. Second operand 6 states. [2020-10-20 06:18:42,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:42,935 INFO L93 Difference]: Finished difference Result 213 states and 240 transitions. [2020-10-20 06:18:42,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 06:18:42,936 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-20 06:18:42,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:42,937 INFO L225 Difference]: With dead ends: 213 [2020-10-20 06:18:42,938 INFO L226 Difference]: Without dead ends: 213 [2020-10-20 06:18:42,938 INFO L677 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 [2020-10-20 06:18:42,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2020-10-20 06:18:42,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 148. [2020-10-20 06:18:42,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-10-20 06:18:42,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 167 transitions. [2020-10-20 06:18:42,961 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 167 transitions. Word has length 15 [2020-10-20 06:18:42,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:42,963 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 167 transitions. [2020-10-20 06:18:42,963 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 06:18:42,963 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 167 transitions. [2020-10-20 06:18:42,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-20 06:18:42,964 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:42,964 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:42,966 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 06:18:42,967 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:18:42,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:42,967 INFO L82 PathProgramCache]: Analyzing trace with hash -1653236417, now seen corresponding path program 1 times [2020-10-20 06:18:42,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:42,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622171342] [2020-10-20 06:18:42,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:43,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:43,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:43,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:43,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:43,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622171342] [2020-10-20 06:18:43,116 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:43,116 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 06:18:43,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591671853] [2020-10-20 06:18:43,117 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 06:18:43,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:43,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:18:43,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:18:43,118 INFO L87 Difference]: Start difference. First operand 148 states and 167 transitions. Second operand 6 states. [2020-10-20 06:18:43,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:43,683 INFO L93 Difference]: Finished difference Result 239 states and 269 transitions. [2020-10-20 06:18:43,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 06:18:43,683 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-20 06:18:43,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:43,686 INFO L225 Difference]: With dead ends: 239 [2020-10-20 06:18:43,686 INFO L226 Difference]: Without dead ends: 239 [2020-10-20 06:18:43,687 INFO L677 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 [2020-10-20 06:18:43,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-10-20 06:18:43,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 147. [2020-10-20 06:18:43,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-10-20 06:18:43,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 165 transitions. [2020-10-20 06:18:43,695 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 165 transitions. Word has length 15 [2020-10-20 06:18:43,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:43,695 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 165 transitions. [2020-10-20 06:18:43,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 06:18:43,695 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 165 transitions. [2020-10-20 06:18:43,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 06:18:43,696 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:43,696 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:43,696 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 06:18:43,697 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:18:43,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:43,697 INFO L82 PathProgramCache]: Analyzing trace with hash 356705479, now seen corresponding path program 1 times [2020-10-20 06:18:43,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:43,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430447706] [2020-10-20 06:18:43,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:43,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:43,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:43,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:43,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:43,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430447706] [2020-10-20 06:18:43,759 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:43,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 06:18:43,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6692359] [2020-10-20 06:18:43,759 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 06:18:43,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:43,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:18:43,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:18:43,760 INFO L87 Difference]: Start difference. First operand 147 states and 165 transitions. Second operand 6 states. [2020-10-20 06:18:44,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:44,057 INFO L93 Difference]: Finished difference Result 153 states and 167 transitions. [2020-10-20 06:18:44,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 06:18:44,057 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-20 06:18:44,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:44,059 INFO L225 Difference]: With dead ends: 153 [2020-10-20 06:18:44,059 INFO L226 Difference]: Without dead ends: 153 [2020-10-20 06:18:44,059 INFO L677 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 [2020-10-20 06:18:44,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-10-20 06:18:44,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 146. [2020-10-20 06:18:44,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-20 06:18:44,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 163 transitions. [2020-10-20 06:18:44,065 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 163 transitions. Word has length 17 [2020-10-20 06:18:44,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:44,065 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 163 transitions. [2020-10-20 06:18:44,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 06:18:44,066 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 163 transitions. [2020-10-20 06:18:44,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 06:18:44,067 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:44,067 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:44,067 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 06:18:44,068 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:18:44,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:44,068 INFO L82 PathProgramCache]: Analyzing trace with hash 356705480, now seen corresponding path program 1 times [2020-10-20 06:18:44,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:44,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570981059] [2020-10-20 06:18:44,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:44,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:44,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:44,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:44,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:44,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570981059] [2020-10-20 06:18:44,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:44,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 06:18:44,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066792516] [2020-10-20 06:18:44,152 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 06:18:44,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:44,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:18:44,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:18:44,153 INFO L87 Difference]: Start difference. First operand 146 states and 163 transitions. Second operand 6 states. [2020-10-20 06:18:44,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:44,462 INFO L93 Difference]: Finished difference Result 145 states and 161 transitions. [2020-10-20 06:18:44,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 06:18:44,462 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-20 06:18:44,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:44,464 INFO L225 Difference]: With dead ends: 145 [2020-10-20 06:18:44,464 INFO L226 Difference]: Without dead ends: 145 [2020-10-20 06:18:44,465 INFO L677 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 [2020-10-20 06:18:44,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-10-20 06:18:44,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2020-10-20 06:18:44,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-10-20 06:18:44,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 161 transitions. [2020-10-20 06:18:44,470 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 161 transitions. Word has length 17 [2020-10-20 06:18:44,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:44,470 INFO L481 AbstractCegarLoop]: Abstraction has 145 states and 161 transitions. [2020-10-20 06:18:44,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 06:18:44,470 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 161 transitions. [2020-10-20 06:18:44,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-20 06:18:44,471 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:44,471 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:44,471 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 06:18:44,472 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:18:44,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:44,472 INFO L82 PathProgramCache]: Analyzing trace with hash -2100429503, now seen corresponding path program 1 times [2020-10-20 06:18:44,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:44,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543751658] [2020-10-20 06:18:44,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:44,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:44,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:44,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:44,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:44,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543751658] [2020-10-20 06:18:44,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:44,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-20 06:18:44,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004194123] [2020-10-20 06:18:44,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-20 06:18:44,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:44,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-20 06:18:44,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-20 06:18:44,648 INFO L87 Difference]: Start difference. First operand 145 states and 161 transitions. Second operand 11 states. [2020-10-20 06:18:45,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:45,490 INFO L93 Difference]: Finished difference Result 146 states and 159 transitions. [2020-10-20 06:18:45,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-20 06:18:45,490 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 19 [2020-10-20 06:18:45,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:45,492 INFO L225 Difference]: With dead ends: 146 [2020-10-20 06:18:45,492 INFO L226 Difference]: Without dead ends: 146 [2020-10-20 06:18:45,492 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2020-10-20 06:18:45,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-20 06:18:45,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 123. [2020-10-20 06:18:45,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-10-20 06:18:45,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 138 transitions. [2020-10-20 06:18:45,497 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 138 transitions. Word has length 19 [2020-10-20 06:18:45,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:45,497 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 138 transitions. [2020-10-20 06:18:45,497 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-20 06:18:45,497 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 138 transitions. [2020-10-20 06:18:45,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-20 06:18:45,498 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:45,498 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:45,498 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-20 06:18:45,499 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:18:45,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:45,499 INFO L82 PathProgramCache]: Analyzing trace with hash -2100429504, now seen corresponding path program 1 times [2020-10-20 06:18:45,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:45,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958981719] [2020-10-20 06:18:45,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:45,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:45,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:45,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:45,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:45,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958981719] [2020-10-20 06:18:45,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:45,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-20 06:18:45,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930949729] [2020-10-20 06:18:45,612 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 06:18:45,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:45,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 06:18:45,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-20 06:18:45,612 INFO L87 Difference]: Start difference. First operand 123 states and 138 transitions. Second operand 10 states. [2020-10-20 06:18:46,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:46,107 INFO L93 Difference]: Finished difference Result 126 states and 138 transitions. [2020-10-20 06:18:46,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-20 06:18:46,108 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 19 [2020-10-20 06:18:46,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:46,109 INFO L225 Difference]: With dead ends: 126 [2020-10-20 06:18:46,109 INFO L226 Difference]: Without dead ends: 126 [2020-10-20 06:18:46,110 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-20 06:18:46,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-10-20 06:18:46,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 122. [2020-10-20 06:18:46,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-20 06:18:46,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 137 transitions. [2020-10-20 06:18:46,114 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 137 transitions. Word has length 19 [2020-10-20 06:18:46,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:46,114 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 137 transitions. [2020-10-20 06:18:46,114 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 06:18:46,115 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 137 transitions. [2020-10-20 06:18:46,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-20 06:18:46,115 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:46,115 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:46,115 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-20 06:18:46,116 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:18:46,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:46,116 INFO L82 PathProgramCache]: Analyzing trace with hash 863887249, now seen corresponding path program 1 times [2020-10-20 06:18:46,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:46,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210431688] [2020-10-20 06:18:46,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:46,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:46,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:46,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:46,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:46,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210431688] [2020-10-20 06:18:46,213 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:46,213 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-20 06:18:46,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602389779] [2020-10-20 06:18:46,214 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-20 06:18:46,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:46,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-20 06:18:46,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-20 06:18:46,214 INFO L87 Difference]: Start difference. First operand 122 states and 137 transitions. Second operand 9 states. [2020-10-20 06:18:46,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:46,687 INFO L93 Difference]: Finished difference Result 125 states and 141 transitions. [2020-10-20 06:18:46,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 06:18:46,689 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2020-10-20 06:18:46,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:46,690 INFO L225 Difference]: With dead ends: 125 [2020-10-20 06:18:46,690 INFO L226 Difference]: Without dead ends: 125 [2020-10-20 06:18:46,690 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-10-20 06:18:46,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-10-20 06:18:46,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 121. [2020-10-20 06:18:46,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-10-20 06:18:46,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 136 transitions. [2020-10-20 06:18:46,695 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 136 transitions. Word has length 20 [2020-10-20 06:18:46,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:46,696 INFO L481 AbstractCegarLoop]: Abstraction has 121 states and 136 transitions. [2020-10-20 06:18:46,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-20 06:18:46,696 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 136 transitions. [2020-10-20 06:18:46,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-20 06:18:46,699 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:46,699 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:46,700 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-20 06:18:46,700 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:18:46,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:46,700 INFO L82 PathProgramCache]: Analyzing trace with hash 863887250, now seen corresponding path program 1 times [2020-10-20 06:18:46,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:46,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826818435] [2020-10-20 06:18:46,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:46,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:46,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:46,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:46,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:46,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826818435] [2020-10-20 06:18:46,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:46,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-20 06:18:46,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793161825] [2020-10-20 06:18:46,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-20 06:18:46,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:46,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-20 06:18:46,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-20 06:18:46,825 INFO L87 Difference]: Start difference. First operand 121 states and 136 transitions. Second operand 9 states. [2020-10-20 06:18:47,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:47,303 INFO L93 Difference]: Finished difference Result 124 states and 140 transitions. [2020-10-20 06:18:47,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 06:18:47,304 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2020-10-20 06:18:47,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:47,306 INFO L225 Difference]: With dead ends: 124 [2020-10-20 06:18:47,306 INFO L226 Difference]: Without dead ends: 124 [2020-10-20 06:18:47,307 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-10-20 06:18:47,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-20 06:18:47,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 120. [2020-10-20 06:18:47,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-20 06:18:47,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 135 transitions. [2020-10-20 06:18:47,311 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 135 transitions. Word has length 20 [2020-10-20 06:18:47,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:47,311 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 135 transitions. [2020-10-20 06:18:47,311 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-20 06:18:47,311 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 135 transitions. [2020-10-20 06:18:47,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-20 06:18:47,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:47,312 INFO L422 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] [2020-10-20 06:18:47,312 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-20 06:18:47,312 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:18:47,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:47,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1159437965, now seen corresponding path program 1 times [2020-10-20 06:18:47,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:47,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323124780] [2020-10-20 06:18:47,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:47,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:47,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:47,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:47,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:47,440 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323124780] [2020-10-20 06:18:47,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:47,441 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-20 06:18:47,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198216159] [2020-10-20 06:18:47,441 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-20 06:18:47,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:47,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-20 06:18:47,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-20 06:18:47,442 INFO L87 Difference]: Start difference. First operand 120 states and 135 transitions. Second operand 11 states. [2020-10-20 06:18:48,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:48,150 INFO L93 Difference]: Finished difference Result 140 states and 152 transitions. [2020-10-20 06:18:48,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-20 06:18:48,150 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 23 [2020-10-20 06:18:48,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:48,152 INFO L225 Difference]: With dead ends: 140 [2020-10-20 06:18:48,152 INFO L226 Difference]: Without dead ends: 140 [2020-10-20 06:18:48,153 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2020-10-20 06:18:48,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-10-20 06:18:48,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 119. [2020-10-20 06:18:48,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-10-20 06:18:48,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 133 transitions. [2020-10-20 06:18:48,158 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 133 transitions. Word has length 23 [2020-10-20 06:18:48,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:48,158 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 133 transitions. [2020-10-20 06:18:48,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-20 06:18:48,158 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 133 transitions. [2020-10-20 06:18:48,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-20 06:18:48,159 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:48,159 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:48,159 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-20 06:18:48,160 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:18:48,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:48,160 INFO L82 PathProgramCache]: Analyzing trace with hash -164424272, now seen corresponding path program 1 times [2020-10-20 06:18:48,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:48,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299836767] [2020-10-20 06:18:48,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:48,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:48,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:48,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:48,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:48,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299836767] [2020-10-20 06:18:48,217 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:48,217 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 06:18:48,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937179525] [2020-10-20 06:18:48,217 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 06:18:48,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:48,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:18:48,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:18:48,218 INFO L87 Difference]: Start difference. First operand 119 states and 133 transitions. Second operand 5 states. [2020-10-20 06:18:48,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:48,449 INFO L93 Difference]: Finished difference Result 176 states and 188 transitions. [2020-10-20 06:18:48,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 06:18:48,450 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-10-20 06:18:48,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:48,452 INFO L225 Difference]: With dead ends: 176 [2020-10-20 06:18:48,452 INFO L226 Difference]: Without dead ends: 176 [2020-10-20 06:18:48,453 INFO L677 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 [2020-10-20 06:18:48,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2020-10-20 06:18:48,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 118. [2020-10-20 06:18:48,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-10-20 06:18:48,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 131 transitions. [2020-10-20 06:18:48,457 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 131 transitions. Word has length 25 [2020-10-20 06:18:48,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:48,458 INFO L481 AbstractCegarLoop]: Abstraction has 118 states and 131 transitions. [2020-10-20 06:18:48,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 06:18:48,458 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 131 transitions. [2020-10-20 06:18:48,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-20 06:18:48,459 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:48,459 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:48,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-20 06:18:48,459 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:18:48,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:48,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1467215118, now seen corresponding path program 1 times [2020-10-20 06:18:48,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:48,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167330867] [2020-10-20 06:18:48,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:48,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:48,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:48,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:48,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:48,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167330867] [2020-10-20 06:18:48,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:48,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 06:18:48,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13940067] [2020-10-20 06:18:48,533 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 06:18:48,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:48,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:18:48,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:18:48,533 INFO L87 Difference]: Start difference. First operand 118 states and 131 transitions. Second operand 6 states. [2020-10-20 06:18:48,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:48,784 INFO L93 Difference]: Finished difference Result 117 states and 128 transitions. [2020-10-20 06:18:48,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 06:18:48,784 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-10-20 06:18:48,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:48,786 INFO L225 Difference]: With dead ends: 117 [2020-10-20 06:18:48,786 INFO L226 Difference]: Without dead ends: 117 [2020-10-20 06:18:48,786 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:18:48,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-10-20 06:18:48,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2020-10-20 06:18:48,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-10-20 06:18:48,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 128 transitions. [2020-10-20 06:18:48,790 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 128 transitions. Word has length 30 [2020-10-20 06:18:48,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:48,791 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 128 transitions. [2020-10-20 06:18:48,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 06:18:48,791 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 128 transitions. [2020-10-20 06:18:48,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-20 06:18:48,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:48,792 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:48,792 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-20 06:18:48,792 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:18:48,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:48,792 INFO L82 PathProgramCache]: Analyzing trace with hash -1435698162, now seen corresponding path program 1 times [2020-10-20 06:18:48,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:48,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496832035] [2020-10-20 06:18:48,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:48,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:49,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:49,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:49,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:49,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496832035] [2020-10-20 06:18:49,078 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:49,079 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-20 06:18:49,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082601059] [2020-10-20 06:18:49,080 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-20 06:18:49,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:49,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-20 06:18:49,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-10-20 06:18:49,081 INFO L87 Difference]: Start difference. First operand 117 states and 128 transitions. Second operand 13 states. [2020-10-20 06:18:49,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:49,664 INFO L93 Difference]: Finished difference Result 214 states and 225 transitions. [2020-10-20 06:18:49,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-20 06:18:49,664 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 30 [2020-10-20 06:18:49,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:49,666 INFO L225 Difference]: With dead ends: 214 [2020-10-20 06:18:49,667 INFO L226 Difference]: Without dead ends: 214 [2020-10-20 06:18:49,667 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=127, Invalid=253, Unknown=0, NotChecked=0, Total=380 [2020-10-20 06:18:49,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-10-20 06:18:49,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 132. [2020-10-20 06:18:49,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-10-20 06:18:49,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 144 transitions. [2020-10-20 06:18:49,671 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 144 transitions. Word has length 30 [2020-10-20 06:18:49,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:49,672 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 144 transitions. [2020-10-20 06:18:49,672 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-20 06:18:49,672 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 144 transitions. [2020-10-20 06:18:49,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-20 06:18:49,673 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:49,673 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:49,673 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-20 06:18:49,673 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:18:49,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:49,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1761789926, now seen corresponding path program 1 times [2020-10-20 06:18:49,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:49,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118281729] [2020-10-20 06:18:49,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:49,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:49,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:49,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:49,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:49,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118281729] [2020-10-20 06:18:49,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:49,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-20 06:18:49,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914441525] [2020-10-20 06:18:49,849 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-20 06:18:49,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:49,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-20 06:18:49,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-20 06:18:49,851 INFO L87 Difference]: Start difference. First operand 132 states and 144 transitions. Second operand 13 states. [2020-10-20 06:18:50,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:50,594 INFO L93 Difference]: Finished difference Result 181 states and 192 transitions. [2020-10-20 06:18:50,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-20 06:18:50,595 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 31 [2020-10-20 06:18:50,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:50,596 INFO L225 Difference]: With dead ends: 181 [2020-10-20 06:18:50,596 INFO L226 Difference]: Without dead ends: 181 [2020-10-20 06:18:50,599 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2020-10-20 06:18:50,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2020-10-20 06:18:50,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 138. [2020-10-20 06:18:50,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-10-20 06:18:50,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 151 transitions. [2020-10-20 06:18:50,605 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 151 transitions. Word has length 31 [2020-10-20 06:18:50,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:50,607 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 151 transitions. [2020-10-20 06:18:50,607 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-20 06:18:50,607 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 151 transitions. [2020-10-20 06:18:50,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-20 06:18:50,608 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:50,608 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:50,608 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-20 06:18:50,608 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:18:50,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:50,609 INFO L82 PathProgramCache]: Analyzing trace with hash 1761789927, now seen corresponding path program 1 times [2020-10-20 06:18:50,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:50,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529001933] [2020-10-20 06:18:50,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:50,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:50,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:18:50,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:18:50,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:18:50,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529001933] [2020-10-20 06:18:50,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:18:50,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-20 06:18:50,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320228227] [2020-10-20 06:18:50,852 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-20 06:18:50,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:18:50,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-20 06:18:50,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-10-20 06:18:50,853 INFO L87 Difference]: Start difference. First operand 138 states and 151 transitions. Second operand 13 states. [2020-10-20 06:18:51,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:18:51,693 INFO L93 Difference]: Finished difference Result 212 states and 223 transitions. [2020-10-20 06:18:51,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-20 06:18:51,696 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 31 [2020-10-20 06:18:51,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:18:51,698 INFO L225 Difference]: With dead ends: 212 [2020-10-20 06:18:51,698 INFO L226 Difference]: Without dead ends: 212 [2020-10-20 06:18:51,698 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2020-10-20 06:18:51,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-10-20 06:18:51,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 138. [2020-10-20 06:18:51,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-10-20 06:18:51,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 150 transitions. [2020-10-20 06:18:51,703 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 150 transitions. Word has length 31 [2020-10-20 06:18:51,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:18:51,703 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 150 transitions. [2020-10-20 06:18:51,703 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-20 06:18:51,704 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 150 transitions. [2020-10-20 06:18:51,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-20 06:18:51,704 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:18:51,704 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:18:51,704 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-20 06:18:51,705 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:18:51,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:18:51,705 INFO L82 PathProgramCache]: Analyzing trace with hash 423103229, now seen corresponding path program 1 times [2020-10-20 06:18:51,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:18:51,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805777192] [2020-10-20 06:18:51,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:18:51,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:18:51,726 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:18:51,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:18:51,761 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:18:51,811 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:18:51,812 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 06:18:51,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-20 06:18:51,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 06:18:51 BoogieIcfgContainer [2020-10-20 06:18:51,859 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 06:18:51,860 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:18:51,860 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:18:51,860 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:18:51,860 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:18:39" (3/4) ... [2020-10-20 06:18:51,863 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 06:18:51,931 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 06:18:51,931 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:18:51,933 INFO L168 Benchmark]: Toolchain (without parser) took 13705.59 ms. Allocated memory was 39.8 MB in the beginning and 88.6 MB in the end (delta: 48.8 MB). Free memory was 16.1 MB in the beginning and 59.4 MB in the end (delta: -43.3 MB). Peak memory consumption was 5.5 MB. Max. memory is 14.3 GB. [2020-10-20 06:18:51,934 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 30.4 MB. Free memory was 6.5 MB in the beginning and 6.4 MB in the end (delta: 63.1 kB). Peak memory consumption was 63.1 kB. Max. memory is 14.3 GB. [2020-10-20 06:18:51,935 INFO L168 Benchmark]: CACSL2BoogieTranslator took 755.98 ms. Allocated memory was 39.8 MB in the beginning and 42.5 MB in the end (delta: 2.6 MB). Free memory was 15.2 MB in the beginning and 17.0 MB in the end (delta: -1.7 MB). Peak memory consumption was 5.3 MB. Max. memory is 14.3 GB. [2020-10-20 06:18:51,935 INFO L168 Benchmark]: Boogie Preprocessor took 68.30 ms. Allocated memory is still 42.5 MB. Free memory was 17.0 MB in the beginning and 13.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 14.3 GB. [2020-10-20 06:18:51,936 INFO L168 Benchmark]: RCFGBuilder took 908.52 ms. Allocated memory was 42.5 MB in the beginning and 47.2 MB in the end (delta: 4.7 MB). Free memory was 13.8 MB in the beginning and 20.8 MB in the end (delta: -7.0 MB). Peak memory consumption was 5.7 MB. Max. memory is 14.3 GB. [2020-10-20 06:18:51,937 INFO L168 Benchmark]: TraceAbstraction took 11888.64 ms. Allocated memory was 47.2 MB in the beginning and 88.6 MB in the end (delta: 41.4 MB). Free memory was 20.1 MB in the beginning and 63.2 MB in the end (delta: -43.1 MB). Peak memory consumption was 57.7 MB. Max. memory is 14.3 GB. [2020-10-20 06:18:51,937 INFO L168 Benchmark]: Witness Printer took 71.53 ms. Allocated memory is still 88.6 MB. Free memory was 63.2 MB in the beginning and 59.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 14.3 GB. [2020-10-20 06:18:51,941 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 30.4 MB. Free memory was 6.5 MB in the beginning and 6.4 MB in the end (delta: 63.1 kB). Peak memory consumption was 63.1 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 755.98 ms. Allocated memory was 39.8 MB in the beginning and 42.5 MB in the end (delta: 2.6 MB). Free memory was 15.2 MB in the beginning and 17.0 MB in the end (delta: -1.7 MB). Peak memory consumption was 5.3 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 68.30 ms. Allocated memory is still 42.5 MB. Free memory was 17.0 MB in the beginning and 13.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 14.3 GB. * RCFGBuilder took 908.52 ms. Allocated memory was 42.5 MB in the beginning and 47.2 MB in the end (delta: 4.7 MB). Free memory was 13.8 MB in the beginning and 20.8 MB in the end (delta: -7.0 MB). Peak memory consumption was 5.7 MB. Max. memory is 14.3 GB. * TraceAbstraction took 11888.64 ms. Allocated memory was 47.2 MB in the beginning and 88.6 MB in the end (delta: 41.4 MB). Free memory was 20.1 MB in the beginning and 63.2 MB in the end (delta: -43.1 MB). Peak memory consumption was 57.7 MB. Max. memory is 14.3 GB. * Witness Printer took 71.53 ms. Allocated memory is still 88.6 MB. Free memory was 63.2 MB in the beginning and 59.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 992]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L1004] SLL* head = malloc(sizeof(SLL)); VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1005] head->next = ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1006] head->prev = ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1007] head->data = 0 VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1009] SLL* x = head; VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1012] COND FALSE !(__VERIFIER_nondet_int()) [L1021] x->data = 1 VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1022] x->next = malloc(sizeof(SLL)) VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1023] EXPR x->next VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->next={-2:0}] [L1023] x->next->prev = x VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->next={-2:0}] [L1024] EXPR x->next VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->next={-2:0}] [L1024] x->next->data = 2 VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->next={-2:0}] [L1026] x = head VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1028] COND FALSE !(!(((void*)0) != x)) VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1030] EXPR x->data VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->data=1] [L1030] COND FALSE !(1 != x->data) [L1035] EXPR x->data VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->data=1] [L1035] COND FALSE !(!(1 == x->data)) [L1036] EXPR x->next VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->next={-2:0}] [L1036] x = x->next [L1037] EXPR x->data VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-2:0}, x->data=2] [L1037] COND TRUE !(2 != x->data) [L1037] CALL reach_error() [L992] COND FALSE !(0) [L992] __assert_fail ("0", "dll-token-2.c", 12, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 144 locations, 59 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.7s, OverallIterations: 19, TraceHistogramMax: 1, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1399 SDtfs, 2565 SDslu, 3167 SDs, 0 SdLazy, 7253 SolverSat, 486 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 229 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 184 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=149occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 18 MinimizatonAttempts, 590 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 387 NumberOfCodeBlocks, 387 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 334 ConstructedInterpolants, 0 QuantifiedInterpolants, 49858 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...