./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/forester-heap/sll-simple-white-blue-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 c783d9214012f4bff6327cd9f7b291047ddaff08 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-906a4fb [2020-10-19 18:26:03,067 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:26:03,069 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:26:03,094 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:26:03,094 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:26:03,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:26:03,097 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:26:03,099 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:26:03,101 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:26:03,102 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:26:03,103 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:26:03,105 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:26:03,105 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:26:03,106 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:26:03,108 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:26:03,109 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:26:03,110 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:26:03,111 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:26:03,113 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:26:03,116 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:26:03,118 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:26:03,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:26:03,121 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:26:03,125 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:26:03,127 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:26:03,128 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:26:03,128 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:26:03,132 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:26:03,133 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:26:03,134 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:26:03,136 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:26:03,137 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:26:03,139 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:26:03,141 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:26:03,142 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:26:03,143 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:26:03,144 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:26:03,145 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:26:03,145 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:26:03,146 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:26:03,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:26:03,149 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2020-10-19 18:26:03,202 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:26:03,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:26:03,206 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:26:03,206 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:26:03,206 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:26:03,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:26:03,207 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 18:26:03,207 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:26:03,208 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:26:03,208 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 18:26:03,209 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:26:03,209 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 18:26:03,210 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 18:26:03,210 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:26:03,210 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 18:26:03,211 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 18:26:03,211 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:26:03,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:26:03,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:26:03,212 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:26:03,213 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:26:03,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:26:03,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:26:03,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:26:03,214 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:26:03,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 18:26:03,215 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:26:03,215 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 -> c783d9214012f4bff6327cd9f7b291047ddaff08 [2020-10-19 18:26:03,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:26:03,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:26:03,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:26:03,581 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:26:03,582 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:26:03,583 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i [2020-10-19 18:26:03,655 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d1483e14/1488695d905b443596ba7474f6ccb736/FLAG7fd0ad80e [2020-10-19 18:26:04,235 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:26:04,237 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i [2020-10-19 18:26:04,253 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d1483e14/1488695d905b443596ba7474f6ccb736/FLAG7fd0ad80e [2020-10-19 18:26:04,487 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d1483e14/1488695d905b443596ba7474f6ccb736 [2020-10-19 18:26:04,491 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:26:04,499 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 18:26:04,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:26:04,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:26:04,505 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:26:04,505 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:26:04" (1/1) ... [2020-10-19 18:26:04,509 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59f227d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:26:04, skipping insertion in model container [2020-10-19 18:26:04,509 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:26:04" (1/1) ... [2020-10-19 18:26:04,517 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:26:04,555 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:26:05,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:26:05,059 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:26:05,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:26:05,184 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:26:05,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:26:05 WrapperNode [2020-10-19 18:26:05,185 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:26:05,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:26:05,186 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:26:05,186 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:26:05,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:26:05" (1/1) ... [2020-10-19 18:26:05,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:26:05" (1/1) ... [2020-10-19 18:26:05,217 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:26:05" (1/1) ... [2020-10-19 18:26:05,217 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:26:05" (1/1) ... [2020-10-19 18:26:05,238 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:26:05" (1/1) ... [2020-10-19 18:26:05,245 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:26:05" (1/1) ... [2020-10-19 18:26:05,249 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:26:05" (1/1) ... [2020-10-19 18:26:05,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:26:05,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:26:05,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:26:05,257 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:26:05,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:26:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:26:05,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-19 18:26:05,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:26:05,328 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-19 18:26:05,328 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-19 18:26:05,328 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-19 18:26:05,329 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-19 18:26:05,329 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-19 18:26:05,329 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-19 18:26:05,329 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-19 18:26:05,330 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-19 18:26:05,330 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-19 18:26:05,330 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-19 18:26:05,331 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-19 18:26:05,331 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-19 18:26:05,331 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-19 18:26:05,331 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-19 18:26:05,332 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-19 18:26:05,332 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-19 18:26:05,332 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-19 18:26:05,333 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-19 18:26:05,333 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-19 18:26:05,334 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-19 18:26:05,334 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-19 18:26:05,334 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-19 18:26:05,334 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-19 18:26:05,335 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-19 18:26:05,335 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-19 18:26:05,335 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-19 18:26:05,335 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-19 18:26:05,336 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-19 18:26:05,336 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-19 18:26:05,336 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-19 18:26:05,337 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-19 18:26:05,337 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-19 18:26:05,337 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-19 18:26:05,337 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-19 18:26:05,338 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-19 18:26:05,338 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-19 18:26:05,338 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-19 18:26:05,338 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-19 18:26:05,339 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-19 18:26:05,339 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-19 18:26:05,339 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-19 18:26:05,339 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-19 18:26:05,340 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-19 18:26:05,340 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-19 18:26:05,340 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-19 18:26:05,340 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-19 18:26:05,341 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-19 18:26:05,341 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-19 18:26:05,341 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-19 18:26:05,341 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-19 18:26:05,341 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-19 18:26:05,342 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-19 18:26:05,342 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-19 18:26:05,342 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-19 18:26:05,342 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-19 18:26:05,343 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-19 18:26:05,343 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-19 18:26:05,343 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-19 18:26:05,343 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-19 18:26:05,343 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-19 18:26:05,344 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-19 18:26:05,344 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-19 18:26:05,344 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-19 18:26:05,344 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-19 18:26:05,344 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-19 18:26:05,345 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-19 18:26:05,345 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-19 18:26:05,345 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-19 18:26:05,345 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-19 18:26:05,345 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-19 18:26:05,346 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-19 18:26:05,346 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-19 18:26:05,346 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-19 18:26:05,346 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-19 18:26:05,347 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-19 18:26:05,347 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-19 18:26:05,347 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-19 18:26:05,347 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-19 18:26:05,347 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-19 18:26:05,348 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-19 18:26:05,348 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-19 18:26:05,348 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-19 18:26:05,348 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-19 18:26:05,349 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-19 18:26:05,349 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-19 18:26:05,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-19 18:26:05,349 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-19 18:26:05,349 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-19 18:26:05,350 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-19 18:26:05,350 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-19 18:26:05,350 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-19 18:26:05,350 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-19 18:26:05,350 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-19 18:26:05,351 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-19 18:26:05,351 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-19 18:26:05,351 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-19 18:26:05,351 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-19 18:26:05,351 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-19 18:26:05,352 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-19 18:26:05,352 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-19 18:26:05,352 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-19 18:26:05,352 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-19 18:26:05,352 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-19 18:26:05,353 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-19 18:26:05,353 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-19 18:26:05,353 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-19 18:26:05,353 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-19 18:26:05,353 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-19 18:26:05,354 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-19 18:26:05,354 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-19 18:26:05,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:26:05,354 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-19 18:26:05,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-19 18:26:05,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-19 18:26:05,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-19 18:26:05,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-19 18:26:05,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-19 18:26:05,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 18:26:05,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-19 18:26:05,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 18:26:05,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:26:06,095 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:26:06,095 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-19 18:26:06,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:26:06 BoogieIcfgContainer [2020-10-19 18:26:06,097 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:26:06,099 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:26:06,099 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:26:06,102 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:26:06,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:26:04" (1/3) ... [2020-10-19 18:26:06,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@345776d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:26:06, skipping insertion in model container [2020-10-19 18:26:06,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:26:05" (2/3) ... [2020-10-19 18:26:06,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@345776d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:26:06, skipping insertion in model container [2020-10-19 18:26:06,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:26:06" (3/3) ... [2020-10-19 18:26:06,106 INFO L111 eAbstractionObserver]: Analyzing ICFG sll-simple-white-blue-2.i [2020-10-19 18:26:06,118 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:26:06,125 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 49 error locations. [2020-10-19 18:26:06,139 INFO L253 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2020-10-19 18:26:06,159 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:26:06,159 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-19 18:26:06,159 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:26:06,160 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:26:06,160 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:26:06,160 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:26:06,160 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:26:06,160 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:26:06,180 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states. [2020-10-19 18:26:06,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-19 18:26:06,190 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:26:06,191 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:26:06,192 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr47ENSURES_VIOLATIONMEMORY_LEAK, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:26:06,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:26:06,199 INFO L82 PathProgramCache]: Analyzing trace with hash 15534572, now seen corresponding path program 1 times [2020-10-19 18:26:06,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:26:06,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749532077] [2020-10-19 18:26:06,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:26:06,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:26:06,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:26:06,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:26:06,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:26:06,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749532077] [2020-10-19 18:26:06,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:26:06,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:26:06,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680008798] [2020-10-19 18:26:06,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:26:06,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:26:06,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:26:06,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:26:06,463 INFO L87 Difference]: Start difference. First operand 115 states. Second operand 4 states. [2020-10-19 18:26:06,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:26:06,834 INFO L93 Difference]: Finished difference Result 138 states and 148 transitions. [2020-10-19 18:26:06,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:26:06,837 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-19 18:26:06,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:26:06,849 INFO L225 Difference]: With dead ends: 138 [2020-10-19 18:26:06,849 INFO L226 Difference]: Without dead ends: 134 [2020-10-19 18:26:06,851 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 [2020-10-19 18:26:06,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-10-19 18:26:06,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 106. [2020-10-19 18:26:06,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-19 18:26:06,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 112 transitions. [2020-10-19 18:26:06,900 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 112 transitions. Word has length 7 [2020-10-19 18:26:06,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:26:06,900 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 112 transitions. [2020-10-19 18:26:06,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:26:06,901 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 112 transitions. [2020-10-19 18:26:06,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-19 18:26:06,902 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:26:06,902 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:26:06,903 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 18:26:06,903 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr47ENSURES_VIOLATIONMEMORY_LEAK, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:26:06,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:26:06,904 INFO L82 PathProgramCache]: Analyzing trace with hash 15534573, now seen corresponding path program 1 times [2020-10-19 18:26:06,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:26:06,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407835531] [2020-10-19 18:26:06,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:26:06,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:26:06,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:26:07,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:26:07,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:26:07,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407835531] [2020-10-19 18:26:07,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:26:07,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:26:07,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73095447] [2020-10-19 18:26:07,020 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:26:07,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:26:07,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:26:07,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:26:07,022 INFO L87 Difference]: Start difference. First operand 106 states and 112 transitions. Second operand 4 states. [2020-10-19 18:26:07,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:26:07,316 INFO L93 Difference]: Finished difference Result 132 states and 141 transitions. [2020-10-19 18:26:07,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:26:07,317 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-19 18:26:07,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:26:07,319 INFO L225 Difference]: With dead ends: 132 [2020-10-19 18:26:07,319 INFO L226 Difference]: Without dead ends: 132 [2020-10-19 18:26:07,320 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 [2020-10-19 18:26:07,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-10-19 18:26:07,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 104. [2020-10-19 18:26:07,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-19 18:26:07,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 110 transitions. [2020-10-19 18:26:07,332 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 110 transitions. Word has length 7 [2020-10-19 18:26:07,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:26:07,332 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 110 transitions. [2020-10-19 18:26:07,332 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:26:07,333 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 110 transitions. [2020-10-19 18:26:07,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-19 18:26:07,333 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:26:07,334 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:26:07,334 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 18:26:07,335 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr47ENSURES_VIOLATIONMEMORY_LEAK, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:26:07,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:26:07,335 INFO L82 PathProgramCache]: Analyzing trace with hash 2024757771, now seen corresponding path program 1 times [2020-10-19 18:26:07,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:26:07,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830401016] [2020-10-19 18:26:07,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:26:07,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:26:07,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:26:07,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:26:07,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:26:07,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830401016] [2020-10-19 18:26:07,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:26:07,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 18:26:07,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872314558] [2020-10-19 18:26:07,464 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:26:07,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:26:07,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:26:07,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:26:07,466 INFO L87 Difference]: Start difference. First operand 104 states and 110 transitions. Second operand 5 states. [2020-10-19 18:26:07,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:26:07,749 INFO L93 Difference]: Finished difference Result 107 states and 113 transitions. [2020-10-19 18:26:07,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 18:26:07,750 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-19 18:26:07,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:26:07,752 INFO L225 Difference]: With dead ends: 107 [2020-10-19 18:26:07,752 INFO L226 Difference]: Without dead ends: 107 [2020-10-19 18:26:07,752 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 [2020-10-19 18:26:07,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-10-19 18:26:07,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 99. [2020-10-19 18:26:07,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-10-19 18:26:07,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 111 transitions. [2020-10-19 18:26:07,770 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 111 transitions. Word has length 12 [2020-10-19 18:26:07,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:26:07,771 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 111 transitions. [2020-10-19 18:26:07,771 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:26:07,771 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 111 transitions. [2020-10-19 18:26:07,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-19 18:26:07,772 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:26:07,772 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:26:07,772 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 18:26:07,773 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr47ENSURES_VIOLATIONMEMORY_LEAK, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:26:07,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:26:07,779 INFO L82 PathProgramCache]: Analyzing trace with hash 2024757772, now seen corresponding path program 1 times [2020-10-19 18:26:07,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:26:07,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639656225] [2020-10-19 18:26:07,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:26:07,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:26:07,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:26:07,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:26:07,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:26:07,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639656225] [2020-10-19 18:26:07,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:26:07,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 18:26:07,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786488107] [2020-10-19 18:26:07,952 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:26:07,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:26:07,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:26:07,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:26:07,953 INFO L87 Difference]: Start difference. First operand 99 states and 111 transitions. Second operand 5 states. [2020-10-19 18:26:08,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:26:08,253 INFO L93 Difference]: Finished difference Result 135 states and 146 transitions. [2020-10-19 18:26:08,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:26:08,255 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-19 18:26:08,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:26:08,257 INFO L225 Difference]: With dead ends: 135 [2020-10-19 18:26:08,257 INFO L226 Difference]: Without dead ends: 135 [2020-10-19 18:26:08,257 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 [2020-10-19 18:26:08,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-10-19 18:26:08,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 114. [2020-10-19 18:26:08,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-19 18:26:08,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 128 transitions. [2020-10-19 18:26:08,275 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 128 transitions. Word has length 12 [2020-10-19 18:26:08,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:26:08,276 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 128 transitions. [2020-10-19 18:26:08,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:26:08,276 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 128 transitions. [2020-10-19 18:26:08,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-19 18:26:08,277 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:26:08,279 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:26:08,279 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 18:26:08,280 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr47ENSURES_VIOLATIONMEMORY_LEAK, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:26:08,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:26:08,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1038052920, now seen corresponding path program 1 times [2020-10-19 18:26:08,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:26:08,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964407740] [2020-10-19 18:26:08,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:26:08,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:26:08,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:26:08,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:26:08,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:26:08,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964407740] [2020-10-19 18:26:08,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:26:08,361 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-19 18:26:08,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916656907] [2020-10-19 18:26:08,362 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-19 18:26:08,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:26:08,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 18:26:08,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-19 18:26:08,363 INFO L87 Difference]: Start difference. First operand 114 states and 128 transitions. Second operand 7 states. [2020-10-19 18:26:08,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:26:08,925 INFO L93 Difference]: Finished difference Result 189 states and 214 transitions. [2020-10-19 18:26:08,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-19 18:26:08,931 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-10-19 18:26:08,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:26:08,933 INFO L225 Difference]: With dead ends: 189 [2020-10-19 18:26:08,933 INFO L226 Difference]: Without dead ends: 189 [2020-10-19 18:26:08,933 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-19 18:26:08,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-10-19 18:26:08,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 113. [2020-10-19 18:26:08,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-10-19 18:26:08,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 127 transitions. [2020-10-19 18:26:08,955 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 127 transitions. Word has length 15 [2020-10-19 18:26:08,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:26:08,956 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 127 transitions. [2020-10-19 18:26:08,956 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-19 18:26:08,957 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 127 transitions. [2020-10-19 18:26:08,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-19 18:26:08,958 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:26:08,958 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:26:08,958 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-19 18:26:08,958 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr47ENSURES_VIOLATIONMEMORY_LEAK, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:26:08,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:26:08,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1038052921, now seen corresponding path program 1 times [2020-10-19 18:26:08,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:26:08,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024975402] [2020-10-19 18:26:08,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:26:08,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:26:09,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:26:09,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:26:09,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:26:09,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024975402] [2020-10-19 18:26:09,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:26:09,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-19 18:26:09,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615617033] [2020-10-19 18:26:09,046 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-19 18:26:09,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:26:09,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 18:26:09,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-19 18:26:09,047 INFO L87 Difference]: Start difference. First operand 113 states and 127 transitions. Second operand 7 states. [2020-10-19 18:26:09,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:26:09,645 INFO L93 Difference]: Finished difference Result 198 states and 225 transitions. [2020-10-19 18:26:09,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-19 18:26:09,645 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-10-19 18:26:09,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:26:09,647 INFO L225 Difference]: With dead ends: 198 [2020-10-19 18:26:09,647 INFO L226 Difference]: Without dead ends: 198 [2020-10-19 18:26:09,647 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-19 18:26:09,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-10-19 18:26:09,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 105. [2020-10-19 18:26:09,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-10-19 18:26:09,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 118 transitions. [2020-10-19 18:26:09,655 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 118 transitions. Word has length 15 [2020-10-19 18:26:09,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:26:09,655 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 118 transitions. [2020-10-19 18:26:09,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-19 18:26:09,656 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 118 transitions. [2020-10-19 18:26:09,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-19 18:26:09,656 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:26:09,657 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:26:09,657 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-19 18:26:09,657 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr47ENSURES_VIOLATIONMEMORY_LEAK, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:26:09,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:26:09,658 INFO L82 PathProgramCache]: Analyzing trace with hash -141829353, now seen corresponding path program 1 times [2020-10-19 18:26:09,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:26:09,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664003477] [2020-10-19 18:26:09,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:26:09,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:26:09,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:26:09,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:26:09,747 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:26:09,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664003477] [2020-10-19 18:26:09,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:26:09,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-19 18:26:09,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697503452] [2020-10-19 18:26:09,748 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 18:26:09,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:26:09,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 18:26:09,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:26:09,749 INFO L87 Difference]: Start difference. First operand 105 states and 118 transitions. Second operand 6 states. [2020-10-19 18:26:09,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:26:09,971 INFO L93 Difference]: Finished difference Result 116 states and 131 transitions. [2020-10-19 18:26:09,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 18:26:09,971 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-10-19 18:26:09,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:26:09,972 INFO L225 Difference]: With dead ends: 116 [2020-10-19 18:26:09,972 INFO L226 Difference]: Without dead ends: 116 [2020-10-19 18:26:09,973 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-19 18:26:09,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-19 18:26:09,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 111. [2020-10-19 18:26:09,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-10-19 18:26:09,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 126 transitions. [2020-10-19 18:26:09,978 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 126 transitions. Word has length 19 [2020-10-19 18:26:09,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:26:09,979 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 126 transitions. [2020-10-19 18:26:09,979 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 18:26:09,979 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 126 transitions. [2020-10-19 18:26:09,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-19 18:26:09,980 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:26:09,980 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] [2020-10-19 18:26:09,980 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-19 18:26:09,980 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr47ENSURES_VIOLATIONMEMORY_LEAK, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:26:09,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:26:09,981 INFO L82 PathProgramCache]: Analyzing trace with hash -151306315, now seen corresponding path program 1 times [2020-10-19 18:26:09,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:26:09,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297511273] [2020-10-19 18:26:09,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:26:09,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:26:10,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:26:10,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:26:10,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:26:10,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297511273] [2020-10-19 18:26:10,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:26:10,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-19 18:26:10,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340541054] [2020-10-19 18:26:10,043 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 18:26:10,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:26:10,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 18:26:10,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:26:10,044 INFO L87 Difference]: Start difference. First operand 111 states and 126 transitions. Second operand 6 states. [2020-10-19 18:26:10,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:26:10,323 INFO L93 Difference]: Finished difference Result 145 states and 163 transitions. [2020-10-19 18:26:10,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 18:26:10,324 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2020-10-19 18:26:10,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:26:10,325 INFO L225 Difference]: With dead ends: 145 [2020-10-19 18:26:10,325 INFO L226 Difference]: Without dead ends: 145 [2020-10-19 18:26:10,326 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 [2020-10-19 18:26:10,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-10-19 18:26:10,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 110. [2020-10-19 18:26:10,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-19 18:26:10,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 124 transitions. [2020-10-19 18:26:10,330 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 124 transitions. Word has length 20 [2020-10-19 18:26:10,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:26:10,331 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 124 transitions. [2020-10-19 18:26:10,331 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 18:26:10,331 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 124 transitions. [2020-10-19 18:26:10,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-19 18:26:10,332 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:26:10,332 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] [2020-10-19 18:26:10,332 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-19 18:26:10,332 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr47ENSURES_VIOLATIONMEMORY_LEAK, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:26:10,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:26:10,333 INFO L82 PathProgramCache]: Analyzing trace with hash -151306314, now seen corresponding path program 1 times [2020-10-19 18:26:10,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:26:10,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719580542] [2020-10-19 18:26:10,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:26:10,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:26:10,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:26:10,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:26:10,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:26:10,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719580542] [2020-10-19 18:26:10,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:26:10,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-19 18:26:10,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898741377] [2020-10-19 18:26:10,402 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 18:26:10,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:26:10,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 18:26:10,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:26:10,403 INFO L87 Difference]: Start difference. First operand 110 states and 124 transitions. Second operand 6 states. [2020-10-19 18:26:10,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:26:10,703 INFO L93 Difference]: Finished difference Result 154 states and 173 transitions. [2020-10-19 18:26:10,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 18:26:10,704 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2020-10-19 18:26:10,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:26:10,705 INFO L225 Difference]: With dead ends: 154 [2020-10-19 18:26:10,705 INFO L226 Difference]: Without dead ends: 154 [2020-10-19 18:26:10,706 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 [2020-10-19 18:26:10,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-10-19 18:26:10,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 109. [2020-10-19 18:26:10,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-19 18:26:10,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 122 transitions. [2020-10-19 18:26:10,715 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 122 transitions. Word has length 20 [2020-10-19 18:26:10,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:26:10,715 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 122 transitions. [2020-10-19 18:26:10,715 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 18:26:10,716 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 122 transitions. [2020-10-19 18:26:10,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-19 18:26:10,716 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:26:10,717 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] [2020-10-19 18:26:10,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-19 18:26:10,717 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr47ENSURES_VIOLATIONMEMORY_LEAK, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:26:10,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:26:10,717 INFO L82 PathProgramCache]: Analyzing trace with hash 2120124380, now seen corresponding path program 1 times [2020-10-19 18:26:10,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:26:10,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861828072] [2020-10-19 18:26:10,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:26:10,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:26:10,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:26:10,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:26:10,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:26:10,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861828072] [2020-10-19 18:26:10,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1294093076] [2020-10-19 18:26:10,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:26:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:26:10,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 13 conjunts are in the unsatisfiable core [2020-10-19 18:26:10,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:26:11,032 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-10-19 18:26:11,033 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:26:11,039 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:26:11,040 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:26:11,040 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2020-10-19 18:26:11,082 INFO L350 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2020-10-19 18:26:11,082 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 13 [2020-10-19 18:26:11,084 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:26:11,086 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:26:11,087 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:26:11,087 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:25, output treesize:9 [2020-10-19 18:26:11,114 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2020-10-19 18:26:11,114 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:26:11,116 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:26:11,117 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:26:11,117 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:19, output treesize:3 [2020-10-19 18:26:11,132 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:26:11,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 18:26:11,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 12 [2020-10-19 18:26:11,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664240837] [2020-10-19 18:26:11,133 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:26:11,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:26:11,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:26:11,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-10-19 18:26:11,134 INFO L87 Difference]: Start difference. First operand 109 states and 122 transitions. Second operand 5 states. [2020-10-19 18:26:11,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:26:11,318 INFO L93 Difference]: Finished difference Result 138 states and 153 transitions. [2020-10-19 18:26:11,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 18:26:11,319 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-10-19 18:26:11,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:26:11,320 INFO L225 Difference]: With dead ends: 138 [2020-10-19 18:26:11,320 INFO L226 Difference]: Without dead ends: 138 [2020-10-19 18:26:11,321 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-10-19 18:26:11,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-10-19 18:26:11,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 112. [2020-10-19 18:26:11,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-19 18:26:11,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 125 transitions. [2020-10-19 18:26:11,326 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 125 transitions. Word has length 22 [2020-10-19 18:26:11,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:26:11,326 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 125 transitions. [2020-10-19 18:26:11,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:26:11,327 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 125 transitions. [2020-10-19 18:26:11,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-19 18:26:11,328 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:26:11,328 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] [2020-10-19 18:26:11,540 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-10-19 18:26:11,541 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr47ENSURES_VIOLATIONMEMORY_LEAK, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:26:11,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:26:11,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1297715506, now seen corresponding path program 1 times [2020-10-19 18:26:11,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:26:11,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250326206] [2020-10-19 18:26:11,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:26:11,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:26:11,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:26:11,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:26:11,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:26:11,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250326206] [2020-10-19 18:26:11,641 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:26:11,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-19 18:26:11,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850573741] [2020-10-19 18:26:11,642 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-19 18:26:11,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:26:11,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-19 18:26:11,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-19 18:26:11,643 INFO L87 Difference]: Start difference. First operand 112 states and 125 transitions. Second operand 9 states. [2020-10-19 18:26:12,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:26:12,045 INFO L93 Difference]: Finished difference Result 140 states and 155 transitions. [2020-10-19 18:26:12,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-19 18:26:12,046 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-10-19 18:26:12,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:26:12,048 INFO L225 Difference]: With dead ends: 140 [2020-10-19 18:26:12,048 INFO L226 Difference]: Without dead ends: 140 [2020-10-19 18:26:12,048 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-10-19 18:26:12,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-10-19 18:26:12,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 113. [2020-10-19 18:26:12,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-10-19 18:26:12,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 127 transitions. [2020-10-19 18:26:12,053 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 127 transitions. Word has length 23 [2020-10-19 18:26:12,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:26:12,053 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 127 transitions. [2020-10-19 18:26:12,053 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-19 18:26:12,053 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 127 transitions. [2020-10-19 18:26:12,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-19 18:26:12,054 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:26:12,054 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] [2020-10-19 18:26:12,054 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-19 18:26:12,055 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr47ENSURES_VIOLATIONMEMORY_LEAK, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:26:12,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:26:12,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1297715507, now seen corresponding path program 1 times [2020-10-19 18:26:12,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:26:12,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276917046] [2020-10-19 18:26:12,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:26:12,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:26:12,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:26:12,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:26:12,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:26:12,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276917046] [2020-10-19 18:26:12,160 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:26:12,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-19 18:26:12,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68767726] [2020-10-19 18:26:12,161 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-19 18:26:12,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:26:12,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-19 18:26:12,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-19 18:26:12,162 INFO L87 Difference]: Start difference. First operand 113 states and 127 transitions. Second operand 8 states. [2020-10-19 18:26:12,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:26:12,636 INFO L93 Difference]: Finished difference Result 163 states and 178 transitions. [2020-10-19 18:26:12,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-19 18:26:12,636 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-10-19 18:26:12,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:26:12,637 INFO L225 Difference]: With dead ends: 163 [2020-10-19 18:26:12,638 INFO L226 Difference]: Without dead ends: 163 [2020-10-19 18:26:12,638 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-10-19 18:26:12,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-10-19 18:26:12,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 115. [2020-10-19 18:26:12,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-10-19 18:26:12,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 129 transitions. [2020-10-19 18:26:12,642 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 129 transitions. Word has length 23 [2020-10-19 18:26:12,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:26:12,643 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 129 transitions. [2020-10-19 18:26:12,643 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-19 18:26:12,643 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 129 transitions. [2020-10-19 18:26:12,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-19 18:26:12,644 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:26:12,644 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] [2020-10-19 18:26:12,644 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-19 18:26:12,644 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr47ENSURES_VIOLATIONMEMORY_LEAK, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:26:12,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:26:12,644 INFO L82 PathProgramCache]: Analyzing trace with hash -2145672081, now seen corresponding path program 1 times [2020-10-19 18:26:12,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:26:12,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768180410] [2020-10-19 18:26:12,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:26:12,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:26:12,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:26:12,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:26:12,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:26:12,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768180410] [2020-10-19 18:26:12,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:26:12,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-19 18:26:12,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141740011] [2020-10-19 18:26:12,748 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-19 18:26:12,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:26:12,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-19 18:26:12,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-19 18:26:12,749 INFO L87 Difference]: Start difference. First operand 115 states and 129 transitions. Second operand 10 states. [2020-10-19 18:26:13,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:26:13,212 INFO L93 Difference]: Finished difference Result 120 states and 133 transitions. [2020-10-19 18:26:13,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-19 18:26:13,213 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 23 [2020-10-19 18:26:13,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:26:13,214 INFO L225 Difference]: With dead ends: 120 [2020-10-19 18:26:13,214 INFO L226 Difference]: Without dead ends: 120 [2020-10-19 18:26:13,215 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2020-10-19 18:26:13,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-10-19 18:26:13,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 114. [2020-10-19 18:26:13,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-19 18:26:13,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 128 transitions. [2020-10-19 18:26:13,218 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 128 transitions. Word has length 23 [2020-10-19 18:26:13,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:26:13,219 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 128 transitions. [2020-10-19 18:26:13,219 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-19 18:26:13,219 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 128 transitions. [2020-10-19 18:26:13,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-19 18:26:13,220 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:26:13,220 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] [2020-10-19 18:26:13,220 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-19 18:26:13,220 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr47ENSURES_VIOLATIONMEMORY_LEAK, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:26:13,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:26:13,220 INFO L82 PathProgramCache]: Analyzing trace with hash -2145672080, now seen corresponding path program 1 times [2020-10-19 18:26:13,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:26:13,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634848415] [2020-10-19 18:26:13,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:26:13,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:26:13,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:26:13,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:26:13,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:26:13,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634848415] [2020-10-19 18:26:13,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:26:13,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-19 18:26:13,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395997942] [2020-10-19 18:26:13,340 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-19 18:26:13,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:26:13,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-19 18:26:13,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-19 18:26:13,340 INFO L87 Difference]: Start difference. First operand 114 states and 128 transitions. Second operand 10 states. [2020-10-19 18:26:13,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:26:13,852 INFO L93 Difference]: Finished difference Result 119 states and 132 transitions. [2020-10-19 18:26:13,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-19 18:26:13,852 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 23 [2020-10-19 18:26:13,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:26:13,854 INFO L225 Difference]: With dead ends: 119 [2020-10-19 18:26:13,854 INFO L226 Difference]: Without dead ends: 119 [2020-10-19 18:26:13,855 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2020-10-19 18:26:13,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-10-19 18:26:13,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 113. [2020-10-19 18:26:13,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-10-19 18:26:13,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 127 transitions. [2020-10-19 18:26:13,858 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 127 transitions. Word has length 23 [2020-10-19 18:26:13,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:26:13,859 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 127 transitions. [2020-10-19 18:26:13,859 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-19 18:26:13,859 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 127 transitions. [2020-10-19 18:26:13,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-19 18:26:13,860 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:26:13,860 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] [2020-10-19 18:26:13,860 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-19 18:26:13,860 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr47ENSURES_VIOLATIONMEMORY_LEAK, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:26:13,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:26:13,861 INFO L82 PathProgramCache]: Analyzing trace with hash 1241290495, now seen corresponding path program 1 times [2020-10-19 18:26:13,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:26:13,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064832994] [2020-10-19 18:26:13,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:26:13,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:26:13,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:26:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:26:13,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:26:13,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064832994] [2020-10-19 18:26:13,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:26:13,913 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-19 18:26:13,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568108352] [2020-10-19 18:26:13,913 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:26:13,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:26:13,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:26:13,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:26:13,914 INFO L87 Difference]: Start difference. First operand 113 states and 127 transitions. Second operand 5 states. [2020-10-19 18:26:14,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:26:14,115 INFO L93 Difference]: Finished difference Result 129 states and 142 transitions. [2020-10-19 18:26:14,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:26:14,116 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-10-19 18:26:14,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:26:14,117 INFO L225 Difference]: With dead ends: 129 [2020-10-19 18:26:14,117 INFO L226 Difference]: Without dead ends: 129 [2020-10-19 18:26:14,117 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:26:14,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-10-19 18:26:14,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 113. [2020-10-19 18:26:14,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-10-19 18:26:14,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 126 transitions. [2020-10-19 18:26:14,122 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 126 transitions. Word has length 26 [2020-10-19 18:26:14,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:26:14,122 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 126 transitions. [2020-10-19 18:26:14,122 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:26:14,122 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 126 transitions. [2020-10-19 18:26:14,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-19 18:26:14,123 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:26:14,124 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] [2020-10-19 18:26:14,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-19 18:26:14,124 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr47ENSURES_VIOLATIONMEMORY_LEAK, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:26:14,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:26:14,125 INFO L82 PathProgramCache]: Analyzing trace with hash -148961045, now seen corresponding path program 1 times [2020-10-19 18:26:14,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:26:14,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776763019] [2020-10-19 18:26:14,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:26:14,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:26:14,142 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:26:14,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:26:14,160 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:26:14,189 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:26:14,189 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 18:26:14,190 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-19 18:26:14,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:26:14 BoogieIcfgContainer [2020-10-19 18:26:14,228 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:26:14,229 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:26:14,229 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:26:14,229 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:26:14,230 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:26:06" (3/4) ... [2020-10-19 18:26:14,232 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-19 18:26:14,286 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 18:26:14,286 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:26:14,288 INFO L168 Benchmark]: Toolchain (without parser) took 9795.35 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 321.4 MB). Free memory was 961.3 MB in the beginning and 874.3 MB in the end (delta: 87.0 MB). Peak memory consumption was 408.4 MB. Max. memory is 11.5 GB. [2020-10-19 18:26:14,289 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:26:14,289 INFO L168 Benchmark]: CACSL2BoogieTranslator took 684.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 955.9 MB in the beginning and 1.1 GB in the end (delta: -168.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2020-10-19 18:26:14,290 INFO L168 Benchmark]: Boogie Preprocessor took 70.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2020-10-19 18:26:14,291 INFO L168 Benchmark]: RCFGBuilder took 841.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 61.0 MB). Peak memory consumption was 61.0 MB. Max. memory is 11.5 GB. [2020-10-19 18:26:14,294 INFO L168 Benchmark]: TraceAbstraction took 8129.55 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 176.7 MB). Free memory was 1.1 GB in the beginning and 874.3 MB in the end (delta: 182.0 MB). Peak memory consumption was 358.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:26:14,295 INFO L168 Benchmark]: Witness Printer took 57.94 ms. Allocated memory is still 1.4 GB. Free memory is still 874.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:26:14,301 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 684.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 955.9 MB in the beginning and 1.1 GB in the end (delta: -168.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 70.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 841.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 61.0 MB). Peak memory consumption was 61.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8129.55 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 176.7 MB). Free memory was 1.1 GB in the beginning and 874.3 MB in the end (delta: 182.0 MB). Peak memory consumption was 358.7 MB. Max. memory is 11.5 GB. * Witness Printer took 57.94 ms. Allocated memory is still 1.4 GB. Free memory is still 874.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 985]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L999] SLL* head = malloc(sizeof(SLL)); VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1000] head->next = ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1001] head->data = 0 VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1003] SLL* x = head; VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1006] COND FALSE !(__VERIFIER_nondet_int()) [L1016] COND TRUE __VERIFIER_nondet_int() [L1017] x = malloc(sizeof(SLL)) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-2:0}] [L1018] x->data = 1 VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-2:0}] [L1019] x->next = head VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-2:0}] [L1020] head = x VAL [head={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-2:0}] [L1040] x = head VAL [head={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-2:0}] [L1043] EXPR x->data VAL [head={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-2:0}, x->data=1] [L1043] COND FALSE !(x->data != 1) [L1049] EXPR x->next VAL [head={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-2:0}, x->next={-1:0}] [L1049] x = x->next [L1050] COND TRUE \read(*x) VAL [head={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-1:0}] [L1052] EXPR x->data VAL [head={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-1:0}, x->data=0] [L1052] COND TRUE x->data != 1 [L1053] CALL reach_error() [L985] COND FALSE !(0) [L985] __assert_fail ("0", "sll-simple-white-blue-2.c", 16, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 115 locations, 49 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 8.0s, OverallIterations: 16, TraceHistogramMax: 1, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1030 SDtfs, 1567 SDslu, 1654 SDs, 0 SdLazy, 4688 SolverSat, 298 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 183 GetRequests, 61 SyntacticMatches, 2 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=115occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 15 MinimizatonAttempts, 468 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 316 NumberOfCodeBlocks, 316 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 273 ConstructedInterpolants, 0 QuantifiedInterpolants, 29968 SizeOfPredicates, 7 NumberOfNonLiveVariables, 158 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 16 InterpolantComputations, 15 PerfectInterpolantSequences, 2/3 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...