./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/forester-heap/sll-01-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/forester-heap/sll-01-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2ea18b6ba0d977117db11fbdff34c486def646c3 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:06:16,172 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:06:16,175 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:06:16,213 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:06:16,214 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:06:16,223 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:06:16,226 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:06:16,230 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:06:16,233 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:06:16,236 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:06:16,237 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:06:16,239 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:06:16,239 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:06:16,242 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:06:16,244 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:06:16,246 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:06:16,248 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:06:16,249 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:06:16,252 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:06:16,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:06:16,261 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:06:16,263 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:06:16,265 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:06:16,266 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:06:16,286 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:06:16,293 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:06:16,293 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:06:16,294 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:06:16,295 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:06:16,297 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:06:16,298 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:06:16,299 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:06:16,302 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:06:16,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:06:16,306 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:06:16,307 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:06:16,308 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:06:16,308 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:06:16,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:06:16,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:06:16,310 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:06:16,312 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-20 06:06:16,353 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:06:16,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:06:16,356 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:06:16,356 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:06:16,356 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:06:16,357 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:06:16,357 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 06:06:16,357 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:06:16,357 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:06:16,358 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 06:06:16,359 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:06:16,359 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 06:06:16,359 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 06:06:16,360 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 06:06:16,360 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 06:06:16,360 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 06:06:16,360 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 06:06:16,361 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:06:16,361 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:06:16,361 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:06:16,361 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 06:06:16,362 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 06:06:16,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:06:16,362 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:06:16,362 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 06:06:16,363 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:06:16,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 06:06:16,363 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:06:16,363 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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ea18b6ba0d977117db11fbdff34c486def646c3 [2020-10-20 06:06:16,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:06:16,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:06:16,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:06:16,608 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:06:16,609 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:06:16,609 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/sll-01-2.i [2020-10-20 06:06:16,692 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4ae07b84/d427bd406acc46aab0ee22cf48dc6f10/FLAGdb924d2d4 [2020-10-20 06:06:17,252 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:06:17,253 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-01-2.i [2020-10-20 06:06:17,269 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4ae07b84/d427bd406acc46aab0ee22cf48dc6f10/FLAGdb924d2d4 [2020-10-20 06:06:17,540 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4ae07b84/d427bd406acc46aab0ee22cf48dc6f10 [2020-10-20 06:06:17,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:06:17,552 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 06:06:17,555 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:06:17,556 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:06:17,560 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:06:17,561 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:06:17" (1/1) ... [2020-10-20 06:06:17,565 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30f61ce9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:06:17, skipping insertion in model container [2020-10-20 06:06:17,565 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:06:17" (1/1) ... [2020-10-20 06:06:17,574 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:06:17,644 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:06:18,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:06:18,040 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:06:18,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:06:18,188 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:06:18,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:06:18 WrapperNode [2020-10-20 06:06:18,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:06:18,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:06:18,193 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:06:18,193 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:06:18,207 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:06:18" (1/1) ... [2020-10-20 06:06:18,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:06:18" (1/1) ... [2020-10-20 06:06:18,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:06:18" (1/1) ... [2020-10-20 06:06:18,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:06:18" (1/1) ... [2020-10-20 06:06:18,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:06:18" (1/1) ... [2020-10-20 06:06:18,259 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:06:18" (1/1) ... [2020-10-20 06:06:18,263 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:06:18" (1/1) ... [2020-10-20 06:06:18,271 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:06:18,272 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:06:18,272 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:06:18,272 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:06:18,273 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:06:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:06:18,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-20 06:06:18,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:06:18,346 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-20 06:06:18,347 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-20 06:06:18,347 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-20 06:06:18,347 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-20 06:06:18,348 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-20 06:06:18,348 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-20 06:06:18,348 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-20 06:06:18,348 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-20 06:06:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-20 06:06:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-20 06:06:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-20 06:06:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-20 06:06:18,350 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-20 06:06:18,350 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-20 06:06:18,350 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-20 06:06:18,350 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-20 06:06:18,351 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-20 06:06:18,351 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-20 06:06:18,351 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-20 06:06:18,351 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-20 06:06:18,352 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-20 06:06:18,352 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-20 06:06:18,352 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-20 06:06:18,353 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-20 06:06:18,353 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-20 06:06:18,353 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-20 06:06:18,353 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-20 06:06:18,354 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-20 06:06:18,354 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-20 06:06:18,354 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-20 06:06:18,354 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-20 06:06:18,355 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-20 06:06:18,355 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-20 06:06:18,355 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-20 06:06:18,355 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-20 06:06:18,355 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-20 06:06:18,356 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-20 06:06:18,356 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-20 06:06:18,356 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-20 06:06:18,356 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-20 06:06:18,356 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-20 06:06:18,356 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-20 06:06:18,356 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-20 06:06:18,357 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-20 06:06:18,357 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-20 06:06:18,357 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-20 06:06:18,357 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-20 06:06:18,357 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-20 06:06:18,357 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-20 06:06:18,357 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-20 06:06:18,357 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-20 06:06:18,358 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-20 06:06:18,358 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-20 06:06:18,358 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-20 06:06:18,358 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-20 06:06:18,358 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-20 06:06:18,358 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-20 06:06:18,358 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-20 06:06:18,359 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-20 06:06:18,359 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-20 06:06:18,359 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-20 06:06:18,359 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-20 06:06:18,359 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-20 06:06:18,359 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-20 06:06:18,360 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-20 06:06:18,360 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-20 06:06:18,360 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-20 06:06:18,360 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-20 06:06:18,360 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-20 06:06:18,360 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-20 06:06:18,361 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-20 06:06:18,361 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-20 06:06:18,361 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-20 06:06:18,361 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-20 06:06:18,362 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-20 06:06:18,362 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-20 06:06:18,362 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-20 06:06:18,362 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-20 06:06:18,362 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-20 06:06:18,363 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-20 06:06:18,363 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-20 06:06:18,363 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-20 06:06:18,363 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-20 06:06:18,363 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-20 06:06:18,364 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-20 06:06:18,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-20 06:06:18,364 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-20 06:06:18,364 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-20 06:06:18,364 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-20 06:06:18,365 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-20 06:06:18,365 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-20 06:06:18,365 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-20 06:06:18,365 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-20 06:06:18,365 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-20 06:06:18,366 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-20 06:06:18,366 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-20 06:06:18,366 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-20 06:06:18,366 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-20 06:06:18,366 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-20 06:06:18,367 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-20 06:06:18,367 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-20 06:06:18,367 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-20 06:06:18,367 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-20 06:06:18,367 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-20 06:06:18,368 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-20 06:06:18,368 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-20 06:06:18,368 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-20 06:06:18,368 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-20 06:06:18,368 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-20 06:06:18,369 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-20 06:06:18,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 06:06:18,369 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-20 06:06:18,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-20 06:06:18,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-20 06:06:18,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-20 06:06:18,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 06:06:18,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-20 06:06:18,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 06:06:18,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:06:18,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 06:06:18,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 06:06:19,347 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:06:19,348 INFO L298 CfgBuilder]: Removed 30 assume(true) statements. [2020-10-20 06:06:19,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:06:19 BoogieIcfgContainer [2020-10-20 06:06:19,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:06:19,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 06:06:19,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 06:06:19,355 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 06:06:19,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 06:06:17" (1/3) ... [2020-10-20 06:06:19,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62f099bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:06:19, skipping insertion in model container [2020-10-20 06:06:19,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:06:18" (2/3) ... [2020-10-20 06:06:19,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62f099bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:06:19, skipping insertion in model container [2020-10-20 06:06:19,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:06:19" (3/3) ... [2020-10-20 06:06:19,360 INFO L111 eAbstractionObserver]: Analyzing ICFG sll-01-2.i [2020-10-20 06:06:19,371 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 06:06:19,380 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 68 error locations. [2020-10-20 06:06:19,394 INFO L253 AbstractCegarLoop]: Starting to check reachability of 68 error locations. [2020-10-20 06:06:19,416 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 06:06:19,417 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-20 06:06:19,417 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 06:06:19,417 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:06:19,418 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:06:19,418 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 06:06:19,418 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:06:19,418 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 06:06:19,442 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states. [2020-10-20 06:06:19,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 06:06:19,453 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:06:19,454 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:06:19,454 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:06:19,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:06:19,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1936971074, now seen corresponding path program 1 times [2020-10-20 06:06:19,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:06:19,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62684811] [2020-10-20 06:06:19,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:06:19,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:19,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:06:19,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:19,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:06:19,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62684811] [2020-10-20 06:06:19,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:06:19,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 06:06:19,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455629814] [2020-10-20 06:06:19,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:06:19,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:06:19,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:06:19,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:06:19,734 INFO L87 Difference]: Start difference. First operand 202 states. Second operand 4 states. [2020-10-20 06:06:20,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:06:20,266 INFO L93 Difference]: Finished difference Result 188 states and 211 transitions. [2020-10-20 06:06:20,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:06:20,269 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-20 06:06:20,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:06:20,283 INFO L225 Difference]: With dead ends: 188 [2020-10-20 06:06:20,284 INFO L226 Difference]: Without dead ends: 184 [2020-10-20 06:06:20,286 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:06:20,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-10-20 06:06:20,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 179. [2020-10-20 06:06:20,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-10-20 06:06:20,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 204 transitions. [2020-10-20 06:06:20,345 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 204 transitions. Word has length 7 [2020-10-20 06:06:20,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:06:20,346 INFO L481 AbstractCegarLoop]: Abstraction has 179 states and 204 transitions. [2020-10-20 06:06:20,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:06:20,347 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 204 transitions. [2020-10-20 06:06:20,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 06:06:20,347 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:06:20,347 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:06:20,348 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 06:06:20,349 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:06:20,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:06:20,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1936971075, now seen corresponding path program 1 times [2020-10-20 06:06:20,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:06:20,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137036780] [2020-10-20 06:06:20,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:06:20,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:20,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:06:20,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:20,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:06:20,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137036780] [2020-10-20 06:06:20,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:06:20,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 06:06:20,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902212999] [2020-10-20 06:06:20,440 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:06:20,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:06:20,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:06:20,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:06:20,442 INFO L87 Difference]: Start difference. First operand 179 states and 204 transitions. Second operand 4 states. [2020-10-20 06:06:20,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:06:20,872 INFO L93 Difference]: Finished difference Result 206 states and 233 transitions. [2020-10-20 06:06:20,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:06:20,873 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-20 06:06:20,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:06:20,876 INFO L225 Difference]: With dead ends: 206 [2020-10-20 06:06:20,876 INFO L226 Difference]: Without dead ends: 206 [2020-10-20 06:06:20,877 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:06:20,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-10-20 06:06:20,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 189. [2020-10-20 06:06:20,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-10-20 06:06:20,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 225 transitions. [2020-10-20 06:06:20,892 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 225 transitions. Word has length 7 [2020-10-20 06:06:20,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:06:20,892 INFO L481 AbstractCegarLoop]: Abstraction has 189 states and 225 transitions. [2020-10-20 06:06:20,892 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:06:20,893 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 225 transitions. [2020-10-20 06:06:20,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 06:06:20,893 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:06:20,894 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:06:20,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 06:06:20,895 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:06:20,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:06:20,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1059391795, now seen corresponding path program 1 times [2020-10-20 06:06:20,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:06:20,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547174271] [2020-10-20 06:06:20,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:06:20,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:20,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:06:20,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:21,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:06:21,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547174271] [2020-10-20 06:06:21,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:06:21,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 06:06:21,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216172976] [2020-10-20 06:06:21,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:06:21,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:06:21,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:06:21,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:06:21,035 INFO L87 Difference]: Start difference. First operand 189 states and 225 transitions. Second operand 4 states. [2020-10-20 06:06:21,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:06:21,357 INFO L93 Difference]: Finished difference Result 202 states and 228 transitions. [2020-10-20 06:06:21,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:06:21,358 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-20 06:06:21,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:06:21,360 INFO L225 Difference]: With dead ends: 202 [2020-10-20 06:06:21,360 INFO L226 Difference]: Without dead ends: 202 [2020-10-20 06:06:21,360 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:06:21,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-20 06:06:21,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 188. [2020-10-20 06:06:21,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-10-20 06:06:21,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 222 transitions. [2020-10-20 06:06:21,373 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 222 transitions. Word has length 11 [2020-10-20 06:06:21,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:06:21,373 INFO L481 AbstractCegarLoop]: Abstraction has 188 states and 222 transitions. [2020-10-20 06:06:21,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:06:21,374 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 222 transitions. [2020-10-20 06:06:21,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 06:06:21,374 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:06:21,374 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:06:21,375 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 06:06:21,375 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:06:21,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:06:21,376 INFO L82 PathProgramCache]: Analyzing trace with hash 921730369, now seen corresponding path program 1 times [2020-10-20 06:06:21,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:06:21,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325933730] [2020-10-20 06:06:21,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:06:21,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:21,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:06:21,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:21,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:06:21,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325933730] [2020-10-20 06:06:21,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:06:21,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 06:06:21,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978743633] [2020-10-20 06:06:21,458 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 06:06:21,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:06:21,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:06:21,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:06:21,459 INFO L87 Difference]: Start difference. First operand 188 states and 222 transitions. Second operand 6 states. [2020-10-20 06:06:22,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:06:22,272 INFO L93 Difference]: Finished difference Result 321 states and 376 transitions. [2020-10-20 06:06:22,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 06:06:22,273 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-20 06:06:22,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:06:22,276 INFO L225 Difference]: With dead ends: 321 [2020-10-20 06:06:22,276 INFO L226 Difference]: Without dead ends: 321 [2020-10-20 06:06:22,277 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-20 06:06:22,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-10-20 06:06:22,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 187. [2020-10-20 06:06:22,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-10-20 06:06:22,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 221 transitions. [2020-10-20 06:06:22,288 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 221 transitions. Word has length 14 [2020-10-20 06:06:22,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:06:22,288 INFO L481 AbstractCegarLoop]: Abstraction has 187 states and 221 transitions. [2020-10-20 06:06:22,288 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 06:06:22,289 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 221 transitions. [2020-10-20 06:06:22,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 06:06:22,289 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:06:22,289 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:06:22,290 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 06:06:22,290 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:06:22,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:06:22,290 INFO L82 PathProgramCache]: Analyzing trace with hash 921730370, now seen corresponding path program 1 times [2020-10-20 06:06:22,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:06:22,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686791277] [2020-10-20 06:06:22,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:06:22,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:22,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:06:22,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:22,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:06:22,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686791277] [2020-10-20 06:06:22,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:06:22,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 06:06:22,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670769191] [2020-10-20 06:06:22,434 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 06:06:22,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:06:22,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:06:22,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:06:22,435 INFO L87 Difference]: Start difference. First operand 187 states and 221 transitions. Second operand 6 states. [2020-10-20 06:06:23,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:06:23,250 INFO L93 Difference]: Finished difference Result 348 states and 416 transitions. [2020-10-20 06:06:23,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 06:06:23,251 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-20 06:06:23,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:06:23,253 INFO L225 Difference]: With dead ends: 348 [2020-10-20 06:06:23,253 INFO L226 Difference]: Without dead ends: 348 [2020-10-20 06:06:23,254 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-20 06:06:23,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-10-20 06:06:23,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 186. [2020-10-20 06:06:23,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-10-20 06:06:23,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 220 transitions. [2020-10-20 06:06:23,273 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 220 transitions. Word has length 14 [2020-10-20 06:06:23,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:06:23,274 INFO L481 AbstractCegarLoop]: Abstraction has 186 states and 220 transitions. [2020-10-20 06:06:23,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 06:06:23,274 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 220 transitions. [2020-10-20 06:06:23,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 06:06:23,275 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:06:23,275 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:06:23,276 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 06:06:23,276 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:06:23,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:06:23,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1543520439, now seen corresponding path program 1 times [2020-10-20 06:06:23,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:06:23,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820667703] [2020-10-20 06:06:23,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:06:23,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:23,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:06:23,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:23,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:06:23,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820667703] [2020-10-20 06:06:23,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:06:23,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-20 06:06:23,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789932543] [2020-10-20 06:06:23,414 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-20 06:06:23,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:06:23,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-20 06:06:23,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-20 06:06:23,415 INFO L87 Difference]: Start difference. First operand 186 states and 220 transitions. Second operand 9 states. [2020-10-20 06:06:24,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:06:24,671 INFO L93 Difference]: Finished difference Result 320 states and 374 transitions. [2020-10-20 06:06:24,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 06:06:24,671 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2020-10-20 06:06:24,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:06:24,674 INFO L225 Difference]: With dead ends: 320 [2020-10-20 06:06:24,674 INFO L226 Difference]: Without dead ends: 320 [2020-10-20 06:06:24,675 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-10-20 06:06:24,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-10-20 06:06:24,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 185. [2020-10-20 06:06:24,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-10-20 06:06:24,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 219 transitions. [2020-10-20 06:06:24,691 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 219 transitions. Word has length 17 [2020-10-20 06:06:24,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:06:24,692 INFO L481 AbstractCegarLoop]: Abstraction has 185 states and 219 transitions. [2020-10-20 06:06:24,692 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-20 06:06:24,692 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 219 transitions. [2020-10-20 06:06:24,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 06:06:24,697 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:06:24,698 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:06:24,698 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 06:06:24,699 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:06:24,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:06:24,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1543520440, now seen corresponding path program 1 times [2020-10-20 06:06:24,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:06:24,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600474564] [2020-10-20 06:06:24,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:06:24,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:24,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:06:24,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:24,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:06:24,893 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600474564] [2020-10-20 06:06:24,894 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:06:24,894 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-20 06:06:24,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624897340] [2020-10-20 06:06:24,894 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-20 06:06:24,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:06:24,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-20 06:06:24,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-20 06:06:24,901 INFO L87 Difference]: Start difference. First operand 185 states and 219 transitions. Second operand 9 states. [2020-10-20 06:06:26,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:06:26,136 INFO L93 Difference]: Finished difference Result 321 states and 375 transitions. [2020-10-20 06:06:26,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-20 06:06:26,137 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2020-10-20 06:06:26,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:06:26,139 INFO L225 Difference]: With dead ends: 321 [2020-10-20 06:06:26,140 INFO L226 Difference]: Without dead ends: 321 [2020-10-20 06:06:26,140 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-10-20 06:06:26,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-10-20 06:06:26,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 184. [2020-10-20 06:06:26,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-10-20 06:06:26,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 218 transitions. [2020-10-20 06:06:26,146 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 218 transitions. Word has length 17 [2020-10-20 06:06:26,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:06:26,147 INFO L481 AbstractCegarLoop]: Abstraction has 184 states and 218 transitions. [2020-10-20 06:06:26,147 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-20 06:06:26,147 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 218 transitions. [2020-10-20 06:06:26,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-20 06:06:26,147 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:06:26,148 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:06:26,148 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 06:06:26,148 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:06:26,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:06:26,149 INFO L82 PathProgramCache]: Analyzing trace with hash 293892350, now seen corresponding path program 1 times [2020-10-20 06:06:26,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:06:26,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812982994] [2020-10-20 06:06:26,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:06:26,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:26,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:06:26,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:26,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:06:26,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812982994] [2020-10-20 06:06:26,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:06:26,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 06:06:26,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073494734] [2020-10-20 06:06:26,199 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:06:26,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:06:26,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:06:26,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:06:26,200 INFO L87 Difference]: Start difference. First operand 184 states and 218 transitions. Second operand 4 states. [2020-10-20 06:06:26,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:06:26,474 INFO L93 Difference]: Finished difference Result 185 states and 219 transitions. [2020-10-20 06:06:26,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:06:26,475 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-20 06:06:26,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:06:26,477 INFO L225 Difference]: With dead ends: 185 [2020-10-20 06:06:26,478 INFO L226 Difference]: Without dead ends: 185 [2020-10-20 06:06:26,479 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:06:26,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-10-20 06:06:26,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2020-10-20 06:06:26,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-10-20 06:06:26,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 219 transitions. [2020-10-20 06:06:26,493 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 219 transitions. Word has length 19 [2020-10-20 06:06:26,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:06:26,493 INFO L481 AbstractCegarLoop]: Abstraction has 185 states and 219 transitions. [2020-10-20 06:06:26,493 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:06:26,494 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 219 transitions. [2020-10-20 06:06:26,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-20 06:06:26,494 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:06:26,495 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] [2020-10-20 06:06:26,495 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 06:06:26,495 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:06:26,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:06:26,501 INFO L82 PathProgramCache]: Analyzing trace with hash 188085731, now seen corresponding path program 1 times [2020-10-20 06:06:26,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:06:26,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784650101] [2020-10-20 06:06:26,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:06:26,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:26,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:06:26,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:26,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:06:26,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784650101] [2020-10-20 06:06:26,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:06:26,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-20 06:06:26,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870477069] [2020-10-20 06:06:26,654 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 06:06:26,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:06:26,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 06:06:26,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-20 06:06:26,657 INFO L87 Difference]: Start difference. First operand 185 states and 219 transitions. Second operand 8 states. [2020-10-20 06:06:27,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:06:27,246 INFO L93 Difference]: Finished difference Result 270 states and 318 transitions. [2020-10-20 06:06:27,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-20 06:06:27,252 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2020-10-20 06:06:27,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:06:27,254 INFO L225 Difference]: With dead ends: 270 [2020-10-20 06:06:27,254 INFO L226 Difference]: Without dead ends: 270 [2020-10-20 06:06:27,255 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-10-20 06:06:27,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-10-20 06:06:27,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 183. [2020-10-20 06:06:27,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-10-20 06:06:27,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 216 transitions. [2020-10-20 06:06:27,261 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 216 transitions. Word has length 21 [2020-10-20 06:06:27,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:06:27,264 INFO L481 AbstractCegarLoop]: Abstraction has 183 states and 216 transitions. [2020-10-20 06:06:27,264 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 06:06:27,264 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 216 transitions. [2020-10-20 06:06:27,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-20 06:06:27,267 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:06:27,267 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] [2020-10-20 06:06:27,267 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-20 06:06:27,267 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:06:27,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:06:27,268 INFO L82 PathProgramCache]: Analyzing trace with hash -1260873329, now seen corresponding path program 1 times [2020-10-20 06:06:27,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:06:27,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278830535] [2020-10-20 06:06:27,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:06:27,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:27,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:06:27,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:27,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:06:27,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278830535] [2020-10-20 06:06:27,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:06:27,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 06:06:27,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877376111] [2020-10-20 06:06:27,333 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 06:06:27,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:06:27,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:06:27,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:06:27,334 INFO L87 Difference]: Start difference. First operand 183 states and 216 transitions. Second operand 6 states. [2020-10-20 06:06:27,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:06:27,687 INFO L93 Difference]: Finished difference Result 271 states and 318 transitions. [2020-10-20 06:06:27,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 06:06:27,687 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-10-20 06:06:27,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:06:27,689 INFO L225 Difference]: With dead ends: 271 [2020-10-20 06:06:27,690 INFO L226 Difference]: Without dead ends: 271 [2020-10-20 06:06:27,690 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-20 06:06:27,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-10-20 06:06:27,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 186. [2020-10-20 06:06:27,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-10-20 06:06:27,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 219 transitions. [2020-10-20 06:06:27,697 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 219 transitions. Word has length 21 [2020-10-20 06:06:27,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:06:27,697 INFO L481 AbstractCegarLoop]: Abstraction has 186 states and 219 transitions. [2020-10-20 06:06:27,697 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 06:06:27,697 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 219 transitions. [2020-10-20 06:06:27,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-20 06:06:27,698 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:06:27,699 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:06:27,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-20 06:06:27,699 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:06:27,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:06:27,700 INFO L82 PathProgramCache]: Analyzing trace with hash 138180916, now seen corresponding path program 1 times [2020-10-20 06:06:27,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:06:27,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236941792] [2020-10-20 06:06:27,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:06:27,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:27,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:06:27,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:27,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:06:27,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236941792] [2020-10-20 06:06:27,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:06:27,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 06:06:27,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538376427] [2020-10-20 06:06:27,754 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 06:06:27,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:06:27,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:06:27,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:06:27,755 INFO L87 Difference]: Start difference. First operand 186 states and 219 transitions. Second operand 5 states. [2020-10-20 06:06:28,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:06:28,088 INFO L93 Difference]: Finished difference Result 182 states and 213 transitions. [2020-10-20 06:06:28,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 06:06:28,089 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-10-20 06:06:28,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:06:28,091 INFO L225 Difference]: With dead ends: 182 [2020-10-20 06:06:28,091 INFO L226 Difference]: Without dead ends: 182 [2020-10-20 06:06:28,091 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:06:28,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-10-20 06:06:28,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 177. [2020-10-20 06:06:28,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-10-20 06:06:28,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 210 transitions. [2020-10-20 06:06:28,097 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 210 transitions. Word has length 23 [2020-10-20 06:06:28,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:06:28,097 INFO L481 AbstractCegarLoop]: Abstraction has 177 states and 210 transitions. [2020-10-20 06:06:28,097 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 06:06:28,097 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 210 transitions. [2020-10-20 06:06:28,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-20 06:06:28,098 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:06:28,098 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:06:28,098 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-20 06:06:28,098 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:06:28,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:06:28,099 INFO L82 PathProgramCache]: Analyzing trace with hash 138180917, now seen corresponding path program 1 times [2020-10-20 06:06:28,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:06:28,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136452201] [2020-10-20 06:06:28,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:06:28,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:28,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:06:28,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:28,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:06:28,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136452201] [2020-10-20 06:06:28,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:06:28,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 06:06:28,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728715188] [2020-10-20 06:06:28,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 06:06:28,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:06:28,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 06:06:28,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:06:28,182 INFO L87 Difference]: Start difference. First operand 177 states and 210 transitions. Second operand 7 states. [2020-10-20 06:06:28,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:06:28,734 INFO L93 Difference]: Finished difference Result 230 states and 264 transitions. [2020-10-20 06:06:28,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 06:06:28,735 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-10-20 06:06:28,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:06:28,736 INFO L225 Difference]: With dead ends: 230 [2020-10-20 06:06:28,737 INFO L226 Difference]: Without dead ends: 230 [2020-10-20 06:06:28,737 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-20 06:06:28,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-10-20 06:06:28,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 200. [2020-10-20 06:06:28,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-10-20 06:06:28,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 248 transitions. [2020-10-20 06:06:28,743 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 248 transitions. Word has length 23 [2020-10-20 06:06:28,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:06:28,743 INFO L481 AbstractCegarLoop]: Abstraction has 200 states and 248 transitions. [2020-10-20 06:06:28,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 06:06:28,743 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 248 transitions. [2020-10-20 06:06:28,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-20 06:06:28,744 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:06:28,744 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] [2020-10-20 06:06:28,744 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-20 06:06:28,744 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:06:28,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:06:28,745 INFO L82 PathProgramCache]: Analyzing trace with hash 955958233, now seen corresponding path program 1 times [2020-10-20 06:06:28,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:06:28,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692091832] [2020-10-20 06:06:28,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:06:28,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:28,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:06:28,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:28,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:06:28,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692091832] [2020-10-20 06:06:28,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:06:28,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 06:06:28,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811574829] [2020-10-20 06:06:28,792 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 06:06:28,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:06:28,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:06:28,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:06:28,792 INFO L87 Difference]: Start difference. First operand 200 states and 248 transitions. Second operand 5 states. [2020-10-20 06:06:29,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:06:29,110 INFO L93 Difference]: Finished difference Result 226 states and 258 transitions. [2020-10-20 06:06:29,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 06:06:29,111 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-10-20 06:06:29,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:06:29,112 INFO L225 Difference]: With dead ends: 226 [2020-10-20 06:06:29,113 INFO L226 Difference]: Without dead ends: 226 [2020-10-20 06:06:29,113 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:06:29,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-20 06:06:29,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 199. [2020-10-20 06:06:29,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2020-10-20 06:06:29,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 245 transitions. [2020-10-20 06:06:29,118 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 245 transitions. Word has length 27 [2020-10-20 06:06:29,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:06:29,118 INFO L481 AbstractCegarLoop]: Abstraction has 199 states and 245 transitions. [2020-10-20 06:06:29,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 06:06:29,119 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 245 transitions. [2020-10-20 06:06:29,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-20 06:06:29,119 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:06:29,119 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] [2020-10-20 06:06:29,120 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-20 06:06:29,120 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:06:29,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:06:29,120 INFO L82 PathProgramCache]: Analyzing trace with hash 1969073560, now seen corresponding path program 1 times [2020-10-20 06:06:29,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:06:29,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832947891] [2020-10-20 06:06:29,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:06:29,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:29,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:06:29,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:29,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:06:29,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832947891] [2020-10-20 06:06:29,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:06:29,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 06:06:29,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501014138] [2020-10-20 06:06:29,196 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 06:06:29,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:06:29,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 06:06:29,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:06:29,197 INFO L87 Difference]: Start difference. First operand 199 states and 245 transitions. Second operand 7 states. [2020-10-20 06:06:29,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:06:29,810 INFO L93 Difference]: Finished difference Result 288 states and 361 transitions. [2020-10-20 06:06:29,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 06:06:29,811 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2020-10-20 06:06:29,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:06:29,813 INFO L225 Difference]: With dead ends: 288 [2020-10-20 06:06:29,813 INFO L226 Difference]: Without dead ends: 288 [2020-10-20 06:06:29,814 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 [2020-10-20 06:06:29,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2020-10-20 06:06:29,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 198. [2020-10-20 06:06:29,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-10-20 06:06:29,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 244 transitions. [2020-10-20 06:06:29,820 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 244 transitions. Word has length 26 [2020-10-20 06:06:29,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:06:29,820 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 244 transitions. [2020-10-20 06:06:29,820 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 06:06:29,820 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 244 transitions. [2020-10-20 06:06:29,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-20 06:06:29,821 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:06:29,821 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] [2020-10-20 06:06:29,821 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-20 06:06:29,821 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:06:29,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:06:29,822 INFO L82 PathProgramCache]: Analyzing trace with hash 1969073561, now seen corresponding path program 1 times [2020-10-20 06:06:29,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:06:29,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678644987] [2020-10-20 06:06:29,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:06:29,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:29,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:06:29,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:29,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:06:29,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678644987] [2020-10-20 06:06:29,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:06:29,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 06:06:29,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090323406] [2020-10-20 06:06:29,905 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 06:06:29,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:06:29,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 06:06:29,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:06:29,906 INFO L87 Difference]: Start difference. First operand 198 states and 244 transitions. Second operand 7 states. [2020-10-20 06:06:30,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:06:30,609 INFO L93 Difference]: Finished difference Result 308 states and 392 transitions. [2020-10-20 06:06:30,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 06:06:30,609 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2020-10-20 06:06:30,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:06:30,612 INFO L225 Difference]: With dead ends: 308 [2020-10-20 06:06:30,612 INFO L226 Difference]: Without dead ends: 308 [2020-10-20 06:06:30,613 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 [2020-10-20 06:06:30,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2020-10-20 06:06:30,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 185. [2020-10-20 06:06:30,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-10-20 06:06:30,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 230 transitions. [2020-10-20 06:06:30,618 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 230 transitions. Word has length 26 [2020-10-20 06:06:30,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:06:30,619 INFO L481 AbstractCegarLoop]: Abstraction has 185 states and 230 transitions. [2020-10-20 06:06:30,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 06:06:30,619 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 230 transitions. [2020-10-20 06:06:30,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-20 06:06:30,620 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:06:30,620 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:06:30,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-20 06:06:30,620 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:06:30,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:06:30,621 INFO L82 PathProgramCache]: Analyzing trace with hash 223014284, now seen corresponding path program 1 times [2020-10-20 06:06:30,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:06:30,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062472779] [2020-10-20 06:06:30,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:06:30,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:30,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:06:30,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:30,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:06:30,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062472779] [2020-10-20 06:06:30,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:06:30,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-20 06:06:30,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105207974] [2020-10-20 06:06:30,712 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 06:06:30,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:06:30,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 06:06:30,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:06:30,713 INFO L87 Difference]: Start difference. First operand 185 states and 230 transitions. Second operand 7 states. [2020-10-20 06:06:31,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:06:31,201 INFO L93 Difference]: Finished difference Result 306 states and 388 transitions. [2020-10-20 06:06:31,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 06:06:31,207 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2020-10-20 06:06:31,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:06:31,209 INFO L225 Difference]: With dead ends: 306 [2020-10-20 06:06:31,209 INFO L226 Difference]: Without dead ends: 306 [2020-10-20 06:06:31,210 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-20 06:06:31,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-10-20 06:06:31,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 183. [2020-10-20 06:06:31,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-10-20 06:06:31,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 226 transitions. [2020-10-20 06:06:31,217 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 226 transitions. Word has length 30 [2020-10-20 06:06:31,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:06:31,217 INFO L481 AbstractCegarLoop]: Abstraction has 183 states and 226 transitions. [2020-10-20 06:06:31,217 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 06:06:31,217 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 226 transitions. [2020-10-20 06:06:31,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-20 06:06:31,218 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:06:31,218 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:06:31,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-20 06:06:31,219 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:06:31,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:06:31,220 INFO L82 PathProgramCache]: Analyzing trace with hash 132203639, now seen corresponding path program 1 times [2020-10-20 06:06:31,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:06:31,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008182718] [2020-10-20 06:06:31,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:06:31,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:31,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:06:31,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:31,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:06:31,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008182718] [2020-10-20 06:06:31,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:06:31,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 06:06:31,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458843297] [2020-10-20 06:06:31,278 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:06:31,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:06:31,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:06:31,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:06:31,280 INFO L87 Difference]: Start difference. First operand 183 states and 226 transitions. Second operand 4 states. [2020-10-20 06:06:31,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:06:31,515 INFO L93 Difference]: Finished difference Result 253 states and 314 transitions. [2020-10-20 06:06:31,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:06:31,516 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-10-20 06:06:31,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:06:31,517 INFO L225 Difference]: With dead ends: 253 [2020-10-20 06:06:31,518 INFO L226 Difference]: Without dead ends: 253 [2020-10-20 06:06:31,518 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:06:31,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2020-10-20 06:06:31,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 189. [2020-10-20 06:06:31,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-10-20 06:06:31,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 234 transitions. [2020-10-20 06:06:31,524 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 234 transitions. Word has length 33 [2020-10-20 06:06:31,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:06:31,524 INFO L481 AbstractCegarLoop]: Abstraction has 189 states and 234 transitions. [2020-10-20 06:06:31,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:06:31,524 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 234 transitions. [2020-10-20 06:06:31,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-20 06:06:31,525 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:06:31,525 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:06:31,525 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-20 06:06:31,525 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:06:31,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:06:31,526 INFO L82 PathProgramCache]: Analyzing trace with hash -221027395, now seen corresponding path program 1 times [2020-10-20 06:06:31,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:06:31,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767561781] [2020-10-20 06:06:31,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:06:31,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:31,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:06:31,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:31,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:06:31,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767561781] [2020-10-20 06:06:31,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:06:31,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 06:06:31,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029076578] [2020-10-20 06:06:31,574 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:06:31,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:06:31,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:06:31,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:06:31,575 INFO L87 Difference]: Start difference. First operand 189 states and 234 transitions. Second operand 4 states. [2020-10-20 06:06:31,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:06:31,800 INFO L93 Difference]: Finished difference Result 188 states and 231 transitions. [2020-10-20 06:06:31,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:06:31,800 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-10-20 06:06:31,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:06:31,802 INFO L225 Difference]: With dead ends: 188 [2020-10-20 06:06:31,802 INFO L226 Difference]: Without dead ends: 188 [2020-10-20 06:06:31,803 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:06:31,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-10-20 06:06:31,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2020-10-20 06:06:31,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-10-20 06:06:31,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 231 transitions. [2020-10-20 06:06:31,807 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 231 transitions. Word has length 34 [2020-10-20 06:06:31,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:06:31,808 INFO L481 AbstractCegarLoop]: Abstraction has 188 states and 231 transitions. [2020-10-20 06:06:31,808 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:06:31,808 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 231 transitions. [2020-10-20 06:06:31,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-20 06:06:31,808 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:06:31,808 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:06:31,809 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-20 06:06:31,809 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:06:31,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:06:31,809 INFO L82 PathProgramCache]: Analyzing trace with hash 131415361, now seen corresponding path program 1 times [2020-10-20 06:06:31,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:06:31,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050599695] [2020-10-20 06:06:31,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:06:31,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:31,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:06:31,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:31,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:06:31,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050599695] [2020-10-20 06:06:31,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:06:31,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-20 06:06:31,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609730867] [2020-10-20 06:06:31,965 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 06:06:31,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:06:31,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 06:06:31,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-20 06:06:31,966 INFO L87 Difference]: Start difference. First operand 188 states and 231 transitions. Second operand 10 states. [2020-10-20 06:06:32,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:06:32,688 INFO L93 Difference]: Finished difference Result 307 states and 361 transitions. [2020-10-20 06:06:32,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-20 06:06:32,689 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 33 [2020-10-20 06:06:32,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:06:32,691 INFO L225 Difference]: With dead ends: 307 [2020-10-20 06:06:32,691 INFO L226 Difference]: Without dead ends: 307 [2020-10-20 06:06:32,692 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2020-10-20 06:06:32,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-10-20 06:06:32,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 220. [2020-10-20 06:06:32,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-10-20 06:06:32,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 268 transitions. [2020-10-20 06:06:32,697 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 268 transitions. Word has length 33 [2020-10-20 06:06:32,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:06:32,698 INFO L481 AbstractCegarLoop]: Abstraction has 220 states and 268 transitions. [2020-10-20 06:06:32,698 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 06:06:32,698 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 268 transitions. [2020-10-20 06:06:32,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-20 06:06:32,699 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:06:32,699 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:06:32,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-20 06:06:32,699 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:06:32,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:06:32,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1797290604, now seen corresponding path program 1 times [2020-10-20 06:06:32,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:06:32,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972206897] [2020-10-20 06:06:32,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:06:32,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:32,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:06:32,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:32,819 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:06:32,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972206897] [2020-10-20 06:06:32,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636595332] [2020-10-20 06:06:32,820 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 [2020-10-20 06:06:32,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:32,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 20 conjunts are in the unsatisfiable core [2020-10-20 06:06:32,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:06:33,031 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 11 treesize of output 7 [2020-10-20 06:06:33,032 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:06:33,041 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:06:33,048 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 11 treesize of output 7 [2020-10-20 06:06:33,048 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-20 06:06:33,055 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:06:33,055 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:06:33,056 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:21 [2020-10-20 06:06:33,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-20 06:06:33,096 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-10-20 06:06:33,097 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:06:33,120 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:06:33,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-20 06:06:33,125 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-10-20 06:06:33,126 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-20 06:06:33,136 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:06:33,136 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:06:33,137 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:47, output treesize:39 [2020-10-20 06:06:33,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-20 06:06:33,371 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-20 06:06:33,372 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2020-10-20 06:06:33,374 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:06:33,399 INFO L625 ElimStorePlain]: treesize reduction 3, result has 92.3 percent of original size [2020-10-20 06:06:33,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-20 06:06:33,408 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-20 06:06:33,410 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:06:33,410 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 13 [2020-10-20 06:06:33,412 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-20 06:06:33,422 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:06:33,425 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:06:33,426 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:59, output treesize:7 [2020-10-20 06:06:33,439 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:06:33,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:06:33,440 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 11 [2020-10-20 06:06:33,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343355156] [2020-10-20 06:06:33,441 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-20 06:06:33,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:06:33,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-20 06:06:33,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-20 06:06:33,442 INFO L87 Difference]: Start difference. First operand 220 states and 268 transitions. Second operand 11 states. [2020-10-20 06:06:35,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:06:35,174 INFO L93 Difference]: Finished difference Result 361 states and 420 transitions. [2020-10-20 06:06:35,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-20 06:06:35,175 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 35 [2020-10-20 06:06:35,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:06:35,177 INFO L225 Difference]: With dead ends: 361 [2020-10-20 06:06:35,177 INFO L226 Difference]: Without dead ends: 361 [2020-10-20 06:06:35,178 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2020-10-20 06:06:35,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2020-10-20 06:06:35,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 258. [2020-10-20 06:06:35,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-10-20 06:06:35,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 322 transitions. [2020-10-20 06:06:35,185 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 322 transitions. Word has length 35 [2020-10-20 06:06:35,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:06:35,186 INFO L481 AbstractCegarLoop]: Abstraction has 258 states and 322 transitions. [2020-10-20 06:06:35,186 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-20 06:06:35,186 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 322 transitions. [2020-10-20 06:06:35,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-20 06:06:35,187 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:06:35,187 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:06:35,400 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:06:35,401 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:06:35,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:06:35,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1209956345, now seen corresponding path program 1 times [2020-10-20 06:06:35,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:06:35,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277970013] [2020-10-20 06:06:35,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:06:35,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:35,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:06:35,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:35,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:06:35,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277970013] [2020-10-20 06:06:35,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:06:35,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 06:06:35,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148085215] [2020-10-20 06:06:35,476 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 06:06:35,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:06:35,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:06:35,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:06:35,477 INFO L87 Difference]: Start difference. First operand 258 states and 322 transitions. Second operand 6 states. [2020-10-20 06:06:36,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:06:36,093 INFO L93 Difference]: Finished difference Result 373 states and 468 transitions. [2020-10-20 06:06:36,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 06:06:36,094 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-10-20 06:06:36,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:06:36,097 INFO L225 Difference]: With dead ends: 373 [2020-10-20 06:06:36,097 INFO L226 Difference]: Without dead ends: 373 [2020-10-20 06:06:36,098 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-20 06:06:36,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2020-10-20 06:06:36,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 257. [2020-10-20 06:06:36,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-10-20 06:06:36,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 321 transitions. [2020-10-20 06:06:36,106 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 321 transitions. Word has length 35 [2020-10-20 06:06:36,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:06:36,106 INFO L481 AbstractCegarLoop]: Abstraction has 257 states and 321 transitions. [2020-10-20 06:06:36,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 06:06:36,106 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 321 transitions. [2020-10-20 06:06:36,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-20 06:06:36,107 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:06:36,107 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:06:36,107 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-20 06:06:36,108 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:06:36,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:06:36,108 INFO L82 PathProgramCache]: Analyzing trace with hash 1209956346, now seen corresponding path program 1 times [2020-10-20 06:06:36,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:06:36,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148425421] [2020-10-20 06:06:36,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:06:36,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:36,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:06:36,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:36,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:06:36,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148425421] [2020-10-20 06:06:36,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:06:36,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 06:06:36,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735988406] [2020-10-20 06:06:36,208 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 06:06:36,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:06:36,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:06:36,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:06:36,209 INFO L87 Difference]: Start difference. First operand 257 states and 321 transitions. Second operand 6 states. [2020-10-20 06:06:36,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:06:36,867 INFO L93 Difference]: Finished difference Result 400 states and 506 transitions. [2020-10-20 06:06:36,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 06:06:36,871 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-10-20 06:06:36,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:06:36,873 INFO L225 Difference]: With dead ends: 400 [2020-10-20 06:06:36,873 INFO L226 Difference]: Without dead ends: 400 [2020-10-20 06:06:36,873 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-20 06:06:36,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2020-10-20 06:06:36,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 256. [2020-10-20 06:06:36,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-10-20 06:06:36,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 320 transitions. [2020-10-20 06:06:36,879 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 320 transitions. Word has length 35 [2020-10-20 06:06:36,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:06:36,880 INFO L481 AbstractCegarLoop]: Abstraction has 256 states and 320 transitions. [2020-10-20 06:06:36,880 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 06:06:36,880 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 320 transitions. [2020-10-20 06:06:36,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-20 06:06:36,880 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:06:36,881 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:06:36,881 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-20 06:06:36,881 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:06:36,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:06:36,881 INFO L82 PathProgramCache]: Analyzing trace with hash 241182837, now seen corresponding path program 1 times [2020-10-20 06:06:36,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:06:36,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412832467] [2020-10-20 06:06:36,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:06:36,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:37,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:06:37,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:37,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:06:37,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412832467] [2020-10-20 06:06:37,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:06:37,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-20 06:06:37,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155700782] [2020-10-20 06:06:37,047 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-20 06:06:37,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:06:37,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-20 06:06:37,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-20 06:06:37,048 INFO L87 Difference]: Start difference. First operand 256 states and 320 transitions. Second operand 12 states. [2020-10-20 06:06:38,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:06:38,311 INFO L93 Difference]: Finished difference Result 502 states and 597 transitions. [2020-10-20 06:06:38,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-20 06:06:38,313 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 37 [2020-10-20 06:06:38,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:06:38,317 INFO L225 Difference]: With dead ends: 502 [2020-10-20 06:06:38,317 INFO L226 Difference]: Without dead ends: 502 [2020-10-20 06:06:38,318 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2020-10-20 06:06:38,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2020-10-20 06:06:38,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 257. [2020-10-20 06:06:38,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-10-20 06:06:38,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 318 transitions. [2020-10-20 06:06:38,327 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 318 transitions. Word has length 37 [2020-10-20 06:06:38,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:06:38,327 INFO L481 AbstractCegarLoop]: Abstraction has 257 states and 318 transitions. [2020-10-20 06:06:38,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-20 06:06:38,327 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 318 transitions. [2020-10-20 06:06:38,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-20 06:06:38,328 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:06:38,328 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:06:38,328 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-20 06:06:38,328 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:06:38,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:06:38,329 INFO L82 PathProgramCache]: Analyzing trace with hash 241182838, now seen corresponding path program 1 times [2020-10-20 06:06:38,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:06:38,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61514213] [2020-10-20 06:06:38,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:06:38,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:38,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:06:38,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:38,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:06:38,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61514213] [2020-10-20 06:06:38,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:06:38,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-20 06:06:38,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309374362] [2020-10-20 06:06:38,565 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-20 06:06:38,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:06:38,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-20 06:06:38,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-10-20 06:06:38,566 INFO L87 Difference]: Start difference. First operand 257 states and 318 transitions. Second operand 13 states. [2020-10-20 06:06:40,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:06:40,253 INFO L93 Difference]: Finished difference Result 566 states and 663 transitions. [2020-10-20 06:06:40,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-20 06:06:40,254 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 37 [2020-10-20 06:06:40,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:06:40,257 INFO L225 Difference]: With dead ends: 566 [2020-10-20 06:06:40,257 INFO L226 Difference]: Without dead ends: 566 [2020-10-20 06:06:40,258 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2020-10-20 06:06:40,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2020-10-20 06:06:40,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 263. [2020-10-20 06:06:40,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-10-20 06:06:40,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 325 transitions. [2020-10-20 06:06:40,266 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 325 transitions. Word has length 37 [2020-10-20 06:06:40,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:06:40,266 INFO L481 AbstractCegarLoop]: Abstraction has 263 states and 325 transitions. [2020-10-20 06:06:40,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-20 06:06:40,266 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 325 transitions. [2020-10-20 06:06:40,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-20 06:06:40,267 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:06:40,267 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:06:40,267 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-20 06:06:40,271 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:06:40,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:06:40,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1850907343, now seen corresponding path program 1 times [2020-10-20 06:06:40,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:06:40,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018830907] [2020-10-20 06:06:40,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:06:40,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:40,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:06:40,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:40,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:06:40,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018830907] [2020-10-20 06:06:40,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:06:40,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-20 06:06:40,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112626617] [2020-10-20 06:06:40,412 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-20 06:06:40,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:06:40,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-20 06:06:40,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-20 06:06:40,412 INFO L87 Difference]: Start difference. First operand 263 states and 325 transitions. Second operand 9 states. [2020-10-20 06:06:41,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:06:41,064 INFO L93 Difference]: Finished difference Result 277 states and 342 transitions. [2020-10-20 06:06:41,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 06:06:41,065 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 38 [2020-10-20 06:06:41,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:06:41,067 INFO L225 Difference]: With dead ends: 277 [2020-10-20 06:06:41,067 INFO L226 Difference]: Without dead ends: 277 [2020-10-20 06:06:41,067 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-10-20 06:06:41,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-10-20 06:06:41,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 262. [2020-10-20 06:06:41,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-10-20 06:06:41,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 324 transitions. [2020-10-20 06:06:41,073 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 324 transitions. Word has length 38 [2020-10-20 06:06:41,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:06:41,073 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 324 transitions. [2020-10-20 06:06:41,073 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-20 06:06:41,074 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 324 transitions. [2020-10-20 06:06:41,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-20 06:06:41,074 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:06:41,074 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:06:41,075 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-20 06:06:41,075 INFO L429 AbstractCegarLoop]: === Iteration 26 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:06:41,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:06:41,075 INFO L82 PathProgramCache]: Analyzing trace with hash -1850907342, now seen corresponding path program 1 times [2020-10-20 06:06:41,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:06:41,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439717255] [2020-10-20 06:06:41,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:06:41,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:41,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:06:41,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:41,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:06:41,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439717255] [2020-10-20 06:06:41,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:06:41,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-20 06:06:41,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935350060] [2020-10-20 06:06:41,227 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-20 06:06:41,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:06:41,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-20 06:06:41,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-20 06:06:41,227 INFO L87 Difference]: Start difference. First operand 262 states and 324 transitions. Second operand 9 states. [2020-10-20 06:06:41,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:06:41,925 INFO L93 Difference]: Finished difference Result 276 states and 341 transitions. [2020-10-20 06:06:41,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 06:06:41,926 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 38 [2020-10-20 06:06:41,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:06:41,928 INFO L225 Difference]: With dead ends: 276 [2020-10-20 06:06:41,928 INFO L226 Difference]: Without dead ends: 276 [2020-10-20 06:06:41,929 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-10-20 06:06:41,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-10-20 06:06:41,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 261. [2020-10-20 06:06:41,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-10-20 06:06:41,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 323 transitions. [2020-10-20 06:06:41,934 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 323 transitions. Word has length 38 [2020-10-20 06:06:41,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:06:41,935 INFO L481 AbstractCegarLoop]: Abstraction has 261 states and 323 transitions. [2020-10-20 06:06:41,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-20 06:06:41,935 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 323 transitions. [2020-10-20 06:06:41,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-20 06:06:41,935 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:06:41,936 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:06:41,936 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-20 06:06:41,936 INFO L429 AbstractCegarLoop]: === Iteration 27 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:06:41,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:06:41,936 INFO L82 PathProgramCache]: Analyzing trace with hash -1871132276, now seen corresponding path program 1 times [2020-10-20 06:06:41,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:06:41,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583325054] [2020-10-20 06:06:41,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:06:41,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:41,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:06:41,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:42,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:06:42,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583325054] [2020-10-20 06:06:42,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:06:42,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 06:06:42,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185884689] [2020-10-20 06:06:42,012 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:06:42,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:06:42,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:06:42,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:06:42,013 INFO L87 Difference]: Start difference. First operand 261 states and 323 transitions. Second operand 4 states. [2020-10-20 06:06:42,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:06:42,227 INFO L93 Difference]: Finished difference Result 263 states and 325 transitions. [2020-10-20 06:06:42,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:06:42,228 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2020-10-20 06:06:42,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:06:42,230 INFO L225 Difference]: With dead ends: 263 [2020-10-20 06:06:42,230 INFO L226 Difference]: Without dead ends: 263 [2020-10-20 06:06:42,231 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:06:42,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2020-10-20 06:06:42,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 263. [2020-10-20 06:06:42,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-10-20 06:06:42,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 325 transitions. [2020-10-20 06:06:42,239 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 325 transitions. Word has length 40 [2020-10-20 06:06:42,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:06:42,240 INFO L481 AbstractCegarLoop]: Abstraction has 263 states and 325 transitions. [2020-10-20 06:06:42,240 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:06:42,240 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 325 transitions. [2020-10-20 06:06:42,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-20 06:06:42,241 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:06:42,241 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:06:42,241 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-20 06:06:42,242 INFO L429 AbstractCegarLoop]: === Iteration 28 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:06:42,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:06:42,242 INFO L82 PathProgramCache]: Analyzing trace with hash 418645810, now seen corresponding path program 1 times [2020-10-20 06:06:42,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:06:42,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590855985] [2020-10-20 06:06:42,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:06:42,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:42,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:06:42,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:42,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:06:42,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590855985] [2020-10-20 06:06:42,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:06:42,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-20 06:06:42,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291514744] [2020-10-20 06:06:42,603 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-20 06:06:42,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:06:42,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-20 06:06:42,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-20 06:06:42,604 INFO L87 Difference]: Start difference. First operand 263 states and 325 transitions. Second operand 14 states. [2020-10-20 06:06:44,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:06:44,359 INFO L93 Difference]: Finished difference Result 565 states and 661 transitions. [2020-10-20 06:06:44,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-20 06:06:44,360 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 41 [2020-10-20 06:06:44,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:06:44,363 INFO L225 Difference]: With dead ends: 565 [2020-10-20 06:06:44,363 INFO L226 Difference]: Without dead ends: 565 [2020-10-20 06:06:44,364 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=181, Invalid=575, Unknown=0, NotChecked=0, Total=756 [2020-10-20 06:06:44,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-10-20 06:06:44,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 263. [2020-10-20 06:06:44,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-10-20 06:06:44,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 324 transitions. [2020-10-20 06:06:44,374 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 324 transitions. Word has length 41 [2020-10-20 06:06:44,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:06:44,374 INFO L481 AbstractCegarLoop]: Abstraction has 263 states and 324 transitions. [2020-10-20 06:06:44,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-20 06:06:44,375 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 324 transitions. [2020-10-20 06:06:44,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-20 06:06:44,375 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:06:44,375 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:06:44,376 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-20 06:06:44,376 INFO L429 AbstractCegarLoop]: === Iteration 29 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:06:44,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:06:44,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1318150528, now seen corresponding path program 1 times [2020-10-20 06:06:44,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:06:44,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891786401] [2020-10-20 06:06:44,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:06:44,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:44,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:06:44,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:44,507 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 06:06:44,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891786401] [2020-10-20 06:06:44,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:06:44,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-20 06:06:44,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990200585] [2020-10-20 06:06:44,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 06:06:44,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:06:44,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 06:06:44,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-20 06:06:44,526 INFO L87 Difference]: Start difference. First operand 263 states and 324 transitions. Second operand 8 states. [2020-10-20 06:06:44,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:06:44,930 INFO L93 Difference]: Finished difference Result 278 states and 339 transitions. [2020-10-20 06:06:44,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-20 06:06:44,931 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2020-10-20 06:06:44,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:06:44,933 INFO L225 Difference]: With dead ends: 278 [2020-10-20 06:06:44,933 INFO L226 Difference]: Without dead ends: 278 [2020-10-20 06:06:44,933 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-10-20 06:06:44,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-10-20 06:06:44,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 272. [2020-10-20 06:06:44,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-10-20 06:06:44,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 333 transitions. [2020-10-20 06:06:44,939 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 333 transitions. Word has length 42 [2020-10-20 06:06:44,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:06:44,939 INFO L481 AbstractCegarLoop]: Abstraction has 272 states and 333 transitions. [2020-10-20 06:06:44,939 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 06:06:44,939 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 333 transitions. [2020-10-20 06:06:44,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-20 06:06:44,940 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:06:44,940 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:06:44,940 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-20 06:06:44,940 INFO L429 AbstractCegarLoop]: === Iteration 30 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:06:44,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:06:44,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1533266383, now seen corresponding path program 1 times [2020-10-20 06:06:44,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:06:44,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925757481] [2020-10-20 06:06:44,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:06:44,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:45,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:06:45,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:45,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:06:45,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925757481] [2020-10-20 06:06:45,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:06:45,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-20 06:06:45,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576486458] [2020-10-20 06:06:45,036 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 06:06:45,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:06:45,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 06:06:45,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-20 06:06:45,036 INFO L87 Difference]: Start difference. First operand 272 states and 333 transitions. Second operand 8 states. [2020-10-20 06:06:45,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:06:45,499 INFO L93 Difference]: Finished difference Result 282 states and 343 transitions. [2020-10-20 06:06:45,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-20 06:06:45,499 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2020-10-20 06:06:45,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:06:45,501 INFO L225 Difference]: With dead ends: 282 [2020-10-20 06:06:45,501 INFO L226 Difference]: Without dead ends: 282 [2020-10-20 06:06:45,502 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-10-20 06:06:45,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-10-20 06:06:45,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 269. [2020-10-20 06:06:45,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2020-10-20 06:06:45,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 328 transitions. [2020-10-20 06:06:45,508 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 328 transitions. Word has length 42 [2020-10-20 06:06:45,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:06:45,508 INFO L481 AbstractCegarLoop]: Abstraction has 269 states and 328 transitions. [2020-10-20 06:06:45,508 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 06:06:45,508 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 328 transitions. [2020-10-20 06:06:45,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-20 06:06:45,509 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:06:45,509 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:06:45,510 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-20 06:06:45,510 INFO L429 AbstractCegarLoop]: === Iteration 31 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:06:45,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:06:45,510 INFO L82 PathProgramCache]: Analyzing trace with hash -1255371776, now seen corresponding path program 1 times [2020-10-20 06:06:45,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:06:45,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237477168] [2020-10-20 06:06:45,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:06:45,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:45,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:06:45,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:45,564 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 06:06:45,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237477168] [2020-10-20 06:06:45,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:06:45,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 06:06:45,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92231893] [2020-10-20 06:06:45,565 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:06:45,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:06:45,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:06:45,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:06:45,566 INFO L87 Difference]: Start difference. First operand 269 states and 328 transitions. Second operand 4 states. [2020-10-20 06:06:45,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:06:45,882 INFO L93 Difference]: Finished difference Result 279 states and 332 transitions. [2020-10-20 06:06:45,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:06:45,883 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2020-10-20 06:06:45,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:06:45,885 INFO L225 Difference]: With dead ends: 279 [2020-10-20 06:06:45,885 INFO L226 Difference]: Without dead ends: 279 [2020-10-20 06:06:45,886 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:06:45,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-10-20 06:06:45,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 270. [2020-10-20 06:06:45,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-10-20 06:06:45,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 329 transitions. [2020-10-20 06:06:45,893 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 329 transitions. Word has length 42 [2020-10-20 06:06:45,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:06:45,894 INFO L481 AbstractCegarLoop]: Abstraction has 270 states and 329 transitions. [2020-10-20 06:06:45,894 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:06:45,894 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 329 transitions. [2020-10-20 06:06:45,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-20 06:06:45,896 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:06:45,896 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:06:45,896 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-20 06:06:45,897 INFO L429 AbstractCegarLoop]: === Iteration 32 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:06:45,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:06:45,897 INFO L82 PathProgramCache]: Analyzing trace with hash -2063486311, now seen corresponding path program 1 times [2020-10-20 06:06:45,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:06:45,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262392880] [2020-10-20 06:06:45,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:06:45,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:46,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:06:46,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:46,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:06:46,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262392880] [2020-10-20 06:06:46,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:06:46,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-20 06:06:46,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106108495] [2020-10-20 06:06:46,321 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-20 06:06:46,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:06:46,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-20 06:06:46,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2020-10-20 06:06:46,323 INFO L87 Difference]: Start difference. First operand 270 states and 329 transitions. Second operand 15 states. [2020-10-20 06:06:48,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:06:48,060 INFO L93 Difference]: Finished difference Result 567 states and 658 transitions. [2020-10-20 06:06:48,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-20 06:06:48,061 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 44 [2020-10-20 06:06:48,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:06:48,065 INFO L225 Difference]: With dead ends: 567 [2020-10-20 06:06:48,065 INFO L226 Difference]: Without dead ends: 567 [2020-10-20 06:06:48,065 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=199, Invalid=613, Unknown=0, NotChecked=0, Total=812 [2020-10-20 06:06:48,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2020-10-20 06:06:48,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 270. [2020-10-20 06:06:48,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-10-20 06:06:48,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 328 transitions. [2020-10-20 06:06:48,072 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 328 transitions. Word has length 44 [2020-10-20 06:06:48,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:06:48,073 INFO L481 AbstractCegarLoop]: Abstraction has 270 states and 328 transitions. [2020-10-20 06:06:48,073 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-20 06:06:48,073 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 328 transitions. [2020-10-20 06:06:48,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-20 06:06:48,073 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:06:48,074 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:06:48,074 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-20 06:06:48,074 INFO L429 AbstractCegarLoop]: === Iteration 33 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:06:48,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:06:48,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1795101756, now seen corresponding path program 1 times [2020-10-20 06:06:48,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:06:48,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2219376] [2020-10-20 06:06:48,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:06:48,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:48,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:06:48,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:48,190 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:06:48,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2219376] [2020-10-20 06:06:48,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238052516] [2020-10-20 06:06:48,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:06:48,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:48,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 17 conjunts are in the unsatisfiable core [2020-10-20 06:06:48,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:06:48,329 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 11 treesize of output 7 [2020-10-20 06:06:48,329 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:06:48,333 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:06:48,336 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 11 treesize of output 7 [2020-10-20 06:06:48,336 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-20 06:06:48,341 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:06:48,342 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:06:48,342 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:15 [2020-10-20 06:06:48,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-20 06:06:48,351 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-10-20 06:06:48,352 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:06:48,364 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:06:48,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-20 06:06:48,378 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-10-20 06:06:48,378 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-20 06:06:48,386 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:06:48,386 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:06:48,386 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:41, output treesize:33 [2020-10-20 06:06:48,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-20 06:06:48,432 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2020-10-20 06:06:48,434 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:06:48,440 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:06:48,450 INFO L350 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2020-10-20 06:06:48,450 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 10 [2020-10-20 06:06:48,453 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-20 06:06:48,456 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:06:48,457 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:06:48,457 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:47, output treesize:7 [2020-10-20 06:06:48,471 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 06:06:48,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:06:48,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 11 [2020-10-20 06:06:48,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154717904] [2020-10-20 06:06:48,472 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-20 06:06:48,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:06:48,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-20 06:06:48,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-10-20 06:06:48,473 INFO L87 Difference]: Start difference. First operand 270 states and 328 transitions. Second operand 11 states. [2020-10-20 06:06:49,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:06:49,496 INFO L93 Difference]: Finished difference Result 389 states and 448 transitions. [2020-10-20 06:06:49,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-20 06:06:49,497 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 45 [2020-10-20 06:06:49,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:06:49,500 INFO L225 Difference]: With dead ends: 389 [2020-10-20 06:06:49,500 INFO L226 Difference]: Without dead ends: 389 [2020-10-20 06:06:49,500 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2020-10-20 06:06:49,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-10-20 06:06:49,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 294. [2020-10-20 06:06:49,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-10-20 06:06:49,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 363 transitions. [2020-10-20 06:06:49,507 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 363 transitions. Word has length 45 [2020-10-20 06:06:49,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:06:49,507 INFO L481 AbstractCegarLoop]: Abstraction has 294 states and 363 transitions. [2020-10-20 06:06:49,507 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-20 06:06:49,507 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 363 transitions. [2020-10-20 06:06:49,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-20 06:06:49,508 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:06:49,508 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:06:49,722 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:06:49,723 INFO L429 AbstractCegarLoop]: === Iteration 34 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:06:49,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:06:49,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1877413324, now seen corresponding path program 1 times [2020-10-20 06:06:49,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:06:49,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929738145] [2020-10-20 06:06:49,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:06:49,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:49,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:06:49,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:49,778 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 06:06:49,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929738145] [2020-10-20 06:06:49,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:06:49,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 06:06:49,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931420157] [2020-10-20 06:06:49,779 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:06:49,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:06:49,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:06:49,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:06:49,780 INFO L87 Difference]: Start difference. First operand 294 states and 363 transitions. Second operand 4 states. [2020-10-20 06:06:50,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:06:50,073 INFO L93 Difference]: Finished difference Result 296 states and 362 transitions. [2020-10-20 06:06:50,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:06:50,074 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2020-10-20 06:06:50,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:06:50,076 INFO L225 Difference]: With dead ends: 296 [2020-10-20 06:06:50,076 INFO L226 Difference]: Without dead ends: 296 [2020-10-20 06:06:50,076 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:06:50,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-10-20 06:06:50,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 293. [2020-10-20 06:06:50,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2020-10-20 06:06:50,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 359 transitions. [2020-10-20 06:06:50,084 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 359 transitions. Word has length 46 [2020-10-20 06:06:50,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:06:50,084 INFO L481 AbstractCegarLoop]: Abstraction has 293 states and 359 transitions. [2020-10-20 06:06:50,084 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:06:50,084 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 359 transitions. [2020-10-20 06:06:50,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-20 06:06:50,085 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:06:50,085 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:06:50,085 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-20 06:06:50,086 INFO L429 AbstractCegarLoop]: === Iteration 35 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:06:50,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:06:50,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1168941722, now seen corresponding path program 1 times [2020-10-20 06:06:50,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:06:50,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251850416] [2020-10-20 06:06:50,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:06:50,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:50,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:06:50,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:50,305 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 06:06:50,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251850416] [2020-10-20 06:06:50,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:06:50,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-20 06:06:50,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865429512] [2020-10-20 06:06:50,308 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-20 06:06:50,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:06:50,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-20 06:06:50,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-20 06:06:50,309 INFO L87 Difference]: Start difference. First operand 293 states and 359 transitions. Second operand 11 states. [2020-10-20 06:06:51,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:06:51,246 INFO L93 Difference]: Finished difference Result 520 states and 622 transitions. [2020-10-20 06:06:51,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-20 06:06:51,247 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 45 [2020-10-20 06:06:51,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:06:51,249 INFO L225 Difference]: With dead ends: 520 [2020-10-20 06:06:51,250 INFO L226 Difference]: Without dead ends: 520 [2020-10-20 06:06:51,250 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2020-10-20 06:06:51,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2020-10-20 06:06:51,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 300. [2020-10-20 06:06:51,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2020-10-20 06:06:51,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 368 transitions. [2020-10-20 06:06:51,256 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 368 transitions. Word has length 45 [2020-10-20 06:06:51,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:06:51,256 INFO L481 AbstractCegarLoop]: Abstraction has 300 states and 368 transitions. [2020-10-20 06:06:51,256 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-20 06:06:51,256 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 368 transitions. [2020-10-20 06:06:51,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-20 06:06:51,257 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:06:51,257 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:06:51,257 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-20 06:06:51,257 INFO L429 AbstractCegarLoop]: === Iteration 36 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:06:51,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:06:51,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1168941723, now seen corresponding path program 1 times [2020-10-20 06:06:51,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:06:51,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516719638] [2020-10-20 06:06:51,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:06:51,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:51,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:06:51,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:51,430 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 06:06:51,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516719638] [2020-10-20 06:06:51,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:06:51,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-20 06:06:51,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537883737] [2020-10-20 06:06:51,432 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-20 06:06:51,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:06:51,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-20 06:06:51,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-20 06:06:51,432 INFO L87 Difference]: Start difference. First operand 300 states and 368 transitions. Second operand 11 states. [2020-10-20 06:06:52,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:06:52,553 INFO L93 Difference]: Finished difference Result 523 states and 626 transitions. [2020-10-20 06:06:52,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-20 06:06:52,553 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 45 [2020-10-20 06:06:52,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:06:52,556 INFO L225 Difference]: With dead ends: 523 [2020-10-20 06:06:52,556 INFO L226 Difference]: Without dead ends: 523 [2020-10-20 06:06:52,556 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2020-10-20 06:06:52,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2020-10-20 06:06:52,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 306. [2020-10-20 06:06:52,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2020-10-20 06:06:52,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 375 transitions. [2020-10-20 06:06:52,562 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 375 transitions. Word has length 45 [2020-10-20 06:06:52,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:06:52,562 INFO L481 AbstractCegarLoop]: Abstraction has 306 states and 375 transitions. [2020-10-20 06:06:52,563 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-20 06:06:52,563 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 375 transitions. [2020-10-20 06:06:52,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-20 06:06:52,563 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:06:52,563 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:06:52,564 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-20 06:06:52,564 INFO L429 AbstractCegarLoop]: === Iteration 37 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:06:52,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:06:52,564 INFO L82 PathProgramCache]: Analyzing trace with hash -186419219, now seen corresponding path program 1 times [2020-10-20 06:06:52,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:06:52,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856145237] [2020-10-20 06:06:52,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:06:52,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:52,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:06:52,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:52,649 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 06:06:52,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856145237] [2020-10-20 06:06:52,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330098909] [2020-10-20 06:06:52,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:06:52,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:06:52,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-20 06:06:52,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:06:52,819 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 06:06:52,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:06:52,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 7 [2020-10-20 06:06:52,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129917210] [2020-10-20 06:06:52,820 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 06:06:52,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:06:52,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 06:06:52,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-20 06:06:52,821 INFO L87 Difference]: Start difference. First operand 306 states and 375 transitions. Second operand 8 states. [2020-10-20 06:06:52,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:06:52,999 INFO L93 Difference]: Finished difference Result 337 states and 406 transitions. [2020-10-20 06:06:53,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 06:06:53,000 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 46 [2020-10-20 06:06:53,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:06:53,002 INFO L225 Difference]: With dead ends: 337 [2020-10-20 06:06:53,002 INFO L226 Difference]: Without dead ends: 313 [2020-10-20 06:06:53,002 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-20 06:06:53,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2020-10-20 06:06:53,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2020-10-20 06:06:53,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2020-10-20 06:06:53,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 382 transitions. [2020-10-20 06:06:53,008 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 382 transitions. Word has length 46 [2020-10-20 06:06:53,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:06:53,008 INFO L481 AbstractCegarLoop]: Abstraction has 313 states and 382 transitions. [2020-10-20 06:06:53,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 06:06:53,008 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 382 transitions. [2020-10-20 06:06:53,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-20 06:06:53,009 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:06:53,009 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:06:53,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2020-10-20 06:06:53,220 INFO L429 AbstractCegarLoop]: === Iteration 38 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-20 06:06:53,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:06:53,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1237981495, now seen corresponding path program 1 times [2020-10-20 06:06:53,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:06:53,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45177534] [2020-10-20 06:06:53,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:06:53,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:06:53,238 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:06:53,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:06:53,252 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:06:53,281 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:06:53,281 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 06:06:53,282 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-20 06:06:53,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 06:06:53 BoogieIcfgContainer [2020-10-20 06:06:53,330 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 06:06:53,331 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:06:53,331 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:06:53,331 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:06:53,332 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:06:19" (3/4) ... [2020-10-20 06:06:53,334 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 06:06:53,391 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 06:06:53,391 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:06:53,393 INFO L168 Benchmark]: Toolchain (without parser) took 35846.39 ms. Allocated memory was 37.2 MB in the beginning and 167.8 MB in the end (delta: 130.5 MB). Free memory was 17.8 MB in the beginning and 43.9 MB in the end (delta: -26.1 MB). Peak memory consumption was 104.4 MB. Max. memory is 14.3 GB. [2020-10-20 06:06:53,393 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 34.1 MB. Free memory was 10.8 MB in the beginning and 10.7 MB in the end (delta: 47.4 kB). Peak memory consumption was 47.4 kB. Max. memory is 14.3 GB. [2020-10-20 06:06:53,394 INFO L168 Benchmark]: CACSL2BoogieTranslator took 636.77 ms. Allocated memory was 37.2 MB in the beginning and 46.7 MB in the end (delta: 9.4 MB). Free memory was 16.9 MB in the beginning and 27.7 MB in the end (delta: -10.8 MB). Peak memory consumption was 16.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:06:53,394 INFO L168 Benchmark]: Boogie Preprocessor took 78.70 ms. Allocated memory is still 46.7 MB. Free memory was 27.7 MB in the beginning and 24.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 14.3 GB. [2020-10-20 06:06:53,394 INFO L168 Benchmark]: RCFGBuilder took 1078.96 ms. Allocated memory was 46.7 MB in the beginning and 53.5 MB in the end (delta: 6.8 MB). Free memory was 24.0 MB in the beginning and 27.6 MB in the end (delta: -3.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:06:53,395 INFO L168 Benchmark]: TraceAbstraction took 33978.91 ms. Allocated memory was 53.5 MB in the beginning and 167.8 MB in the end (delta: 114.3 MB). Free memory was 27.1 MB in the beginning and 49.3 MB in the end (delta: -22.2 MB). Peak memory consumption was 92.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:06:53,395 INFO L168 Benchmark]: Witness Printer took 60.67 ms. Allocated memory is still 167.8 MB. Free memory was 49.3 MB in the beginning and 43.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 14.3 GB. [2020-10-20 06:06:53,397 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 34.1 MB. Free memory was 10.8 MB in the beginning and 10.7 MB in the end (delta: 47.4 kB). Peak memory consumption was 47.4 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 636.77 ms. Allocated memory was 37.2 MB in the beginning and 46.7 MB in the end (delta: 9.4 MB). Free memory was 16.9 MB in the beginning and 27.7 MB in the end (delta: -10.8 MB). Peak memory consumption was 16.1 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 78.70 ms. Allocated memory is still 46.7 MB. Free memory was 27.7 MB in the beginning and 24.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1078.96 ms. Allocated memory was 46.7 MB in the beginning and 53.5 MB in the end (delta: 6.8 MB). Free memory was 24.0 MB in the beginning and 27.6 MB in the end (delta: -3.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 14.3 GB. * TraceAbstraction took 33978.91 ms. Allocated memory was 53.5 MB in the beginning and 167.8 MB in the end (delta: 114.3 MB). Free memory was 27.1 MB in the beginning and 49.3 MB in the end (delta: -22.2 MB). Peak memory consumption was 92.1 MB. Max. memory is 14.3 GB. * Witness Printer took 60.67 ms. Allocated memory is still 167.8 MB. Free memory was 49.3 MB in the beginning and 43.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1040]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L1002] SLL* list = malloc(sizeof(SLL)); VAL [list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1003] list->next = ((void*)0) VAL [list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1004] COND FALSE !(!(list != ((void*)0))) VAL [list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1004] COND FALSE !(__VERIFIER_nondet_int()) [L1004] list->inner = malloc(sizeof(SLL)) VAL [list={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1004] EXPR list->inner VAL [list={-1:0}, list->inner={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1004] list->inner->next = ((void*)0) VAL [list={-1:0}, list->inner={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1004] EXPR list->inner VAL [list={-1:0}, list->inner={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1004] list->inner->inner = ((void*)0) VAL [list={-1:0}, list->inner={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1004] EXPR list->inner VAL [list={-1:0}, list->inner={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1004] EXPR list->inner != ((void*)0) || list->inner == ((void*)0) VAL [list={-1:0}, list->inner={-2:0}, list->inner != ((void*)0) || list->inner == ((void*)0)=1, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1004] COND FALSE !(!(list->inner != ((void*)0) || list->inner == ((void*)0))) [L1006] SLL* end = list; VAL [end={-1:0}, list={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1009] COND FALSE !(__VERIFIER_nondet_int()) [L1019] end = ((void*)0) [L1020] end = list VAL [end={-1:0}, list={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1023] COND FALSE !(!(((void*)0) != end)) VAL [end={-1:0}, list={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1025] COND TRUE ((void*)0) != end [L1027] int len = 0; VAL [end={-1:0}, len=0, list={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1028] EXPR end->inner VAL [end={-1:0}, end->inner={-2:0}, len=0, list={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1028] SLL* inner = end->inner; [L1029] COND TRUE ((void*)0) != inner VAL [end={-1:0}, inner={-2:0}, len=0, list={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1031] COND TRUE len == 0 [L1032] len = 1 VAL [end={-1:0}, inner={-2:0}, len=1, list={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1035] COND FALSE !(!(((void*)0) != inner)) VAL [end={-1:0}, inner={-2:0}, len=1, list={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1036] EXPR inner->inner VAL [end={-1:0}, inner={-2:0}, inner->inner={0:0}, len=1, list={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1036] COND FALSE !(!(((void*)0) == inner->inner)) [L1037] EXPR inner->next VAL [end={-1:0}, inner={-2:0}, inner->next={0:0}, len=1, list={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1037] COND FALSE !(!(((void*)0) == inner->next)) [L1038] EXPR inner->inner VAL [end={-1:0}, inner={-2:0}, inner->inner={0:0}, len=1, list={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1038] inner = inner->inner [L1039] COND TRUE len == 1 VAL [end={-1:0}, inner={0:0}, len=1, list={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1040] inner->inner - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 202 locations, 68 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 33.8s, OverallIterations: 38, TraceHistogramMax: 2, AutomataDifference: 26.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5913 SDtfs, 9534 SDslu, 16377 SDs, 0 SdLazy, 20148 SolverSat, 1046 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 586 GetRequests, 223 SyntacticMatches, 1 SemanticMatches, 362 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 6.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=313occurred in iteration=37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 37 MinimizatonAttempts, 3428 StatesRemovedByMinimization, 33 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 1308 NumberOfCodeBlocks, 1308 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 1222 ConstructedInterpolants, 12 QuantifiedInterpolants, 417928 SizeOfPredicates, 19 NumberOfNonLiveVariables, 595 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 40 InterpolantComputations, 34 PerfectInterpolantSequences, 12/19 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...