./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.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/dll-rb-cnstr_1-2.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 79a0f3fe2cfdc34f95f5ad882c4d01fe846ad912 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.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 79a0f3fe2cfdc34f95f5ad882c4d01fe846ad912 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:04:56,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:04:56,358 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:04:56,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:04:56,384 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:04:56,386 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:04:56,387 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:04:56,391 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:04:56,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:04:56,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:04:56,396 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:04:56,397 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:04:56,407 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:04:56,411 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:04:56,412 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:04:56,414 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:04:56,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:04:56,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:04:56,423 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:04:56,427 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:04:56,430 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:04:56,433 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:04:56,434 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:04:56,436 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:04:56,439 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:04:56,442 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:04:56,443 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:04:56,445 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:04:56,446 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:04:56,447 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:04:56,447 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:04:56,448 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:04:56,449 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:04:56,450 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:04:56,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:04:56,452 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:04:56,454 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:04:56,455 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:04:56,455 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:04:56,458 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:04:56,460 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:04:56,461 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-20 06:04:56,518 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:04:56,521 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:04:56,523 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:04:56,525 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:04:56,526 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:04:56,526 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:04:56,526 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 06:04:56,526 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:04:56,527 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:04:56,527 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 06:04:56,528 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:04:56,528 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 06:04:56,528 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 06:04:56,529 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 06:04:56,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 06:04:56,529 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 06:04:56,529 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 06:04:56,529 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:04:56,530 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:04:56,530 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:04:56,530 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 06:04:56,530 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 06:04:56,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:04:56,531 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:04:56,531 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 06:04:56,531 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:04:56,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 06:04:56,532 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:04:56,532 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 -> 79a0f3fe2cfdc34f95f5ad882c4d01fe846ad912 [2020-10-20 06:04:56,743 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:04:56,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:04:56,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:04:56,768 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:04:56,771 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:04:56,772 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i [2020-10-20 06:04:56,858 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73d7ed7d0/89960d47d3bd49bf807038614ecb548d/FLAGad108247e [2020-10-20 06:04:57,429 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:04:57,430 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i [2020-10-20 06:04:57,453 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73d7ed7d0/89960d47d3bd49bf807038614ecb548d/FLAGad108247e [2020-10-20 06:04:57,745 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73d7ed7d0/89960d47d3bd49bf807038614ecb548d [2020-10-20 06:04:57,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:04:57,754 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 06:04:57,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:04:57,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:04:57,759 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:04:57,761 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:04:57" (1/1) ... [2020-10-20 06:04:57,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b180d27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:04:57, skipping insertion in model container [2020-10-20 06:04:57,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:04:57" (1/1) ... [2020-10-20 06:04:57,772 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:04:57,833 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:04:58,263 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:04:58,276 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:04:58,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:04:58,393 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:04:58,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:04:58 WrapperNode [2020-10-20 06:04:58,393 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:04:58,394 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:04:58,394 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:04:58,394 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:04:58,404 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:04:58" (1/1) ... [2020-10-20 06:04:58,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:04:58" (1/1) ... [2020-10-20 06:04:58,420 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:04:58" (1/1) ... [2020-10-20 06:04:58,421 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:04:58" (1/1) ... [2020-10-20 06:04:58,442 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:04:58" (1/1) ... [2020-10-20 06:04:58,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:04:58" (1/1) ... [2020-10-20 06:04:58,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:04:58" (1/1) ... [2020-10-20 06:04:58,461 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:04:58,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:04:58,462 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:04:58,462 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:04:58,463 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:04:58" (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 06:04:58,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-20 06:04:58,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:04:58,523 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-20 06:04:58,523 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-20 06:04:58,524 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-20 06:04:58,524 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-20 06:04:58,524 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-20 06:04:58,525 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-20 06:04:58,525 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-20 06:04:58,525 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-20 06:04:58,526 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-20 06:04:58,526 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-20 06:04:58,526 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-20 06:04:58,526 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-20 06:04:58,526 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-20 06:04:58,527 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-20 06:04:58,527 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-20 06:04:58,527 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-20 06:04:58,527 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-20 06:04:58,528 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-20 06:04:58,528 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-20 06:04:58,528 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-20 06:04:58,528 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-20 06:04:58,528 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-20 06:04:58,529 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-20 06:04:58,529 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-20 06:04:58,529 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-20 06:04:58,529 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-20 06:04:58,530 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-20 06:04:58,530 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-20 06:04:58,530 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-20 06:04:58,530 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-20 06:04:58,530 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-20 06:04:58,531 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-20 06:04:58,531 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-20 06:04:58,531 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-20 06:04:58,531 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-20 06:04:58,531 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-20 06:04:58,532 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-20 06:04:58,532 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-20 06:04:58,532 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-20 06:04:58,532 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-20 06:04:58,533 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-20 06:04:58,533 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-20 06:04:58,533 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-20 06:04:58,533 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-20 06:04:58,533 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-20 06:04:58,534 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-20 06:04:58,534 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-20 06:04:58,534 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-20 06:04:58,534 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-20 06:04:58,534 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-20 06:04:58,535 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-20 06:04:58,535 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-20 06:04:58,535 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-20 06:04:58,535 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-20 06:04:58,535 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-20 06:04:58,536 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-20 06:04:58,536 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-20 06:04:58,536 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-20 06:04:58,536 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-20 06:04:58,537 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-20 06:04:58,537 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-20 06:04:58,537 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-20 06:04:58,537 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-20 06:04:58,538 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-20 06:04:58,538 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-20 06:04:58,538 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-20 06:04:58,538 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-20 06:04:58,539 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-20 06:04:58,539 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-20 06:04:58,539 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-20 06:04:58,539 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-20 06:04:58,540 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-20 06:04:58,541 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-20 06:04:58,541 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-20 06:04:58,541 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-20 06:04:58,541 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-20 06:04:58,542 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-20 06:04:58,542 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-20 06:04:58,542 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-20 06:04:58,542 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-20 06:04:58,543 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-20 06:04:58,550 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-20 06:04:58,550 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-20 06:04:58,550 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-20 06:04:58,550 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-20 06:04:58,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-20 06:04:58,551 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-20 06:04:58,551 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-20 06:04:58,551 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-20 06:04:58,551 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-20 06:04:58,551 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-20 06:04:58,552 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-20 06:04:58,552 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-20 06:04:58,552 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-20 06:04:58,552 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-20 06:04:58,552 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-20 06:04:58,552 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-20 06:04:58,553 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-20 06:04:58,553 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-20 06:04:58,553 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-20 06:04:58,553 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-20 06:04:58,553 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-20 06:04:58,553 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-20 06:04:58,553 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-20 06:04:58,554 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-20 06:04:58,554 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-20 06:04:58,554 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-20 06:04:58,554 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-20 06:04:58,554 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-20 06:04:58,554 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-20 06:04:58,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 06:04:58,555 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-20 06:04:58,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-20 06:04:58,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-20 06:04:58,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 06:04:58,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-20 06:04:58,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 06:04:58,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 06:04:58,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-20 06:04:58,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 06:04:58,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:04:59,285 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:04:59,285 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-20 06:04:59,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:04:59 BoogieIcfgContainer [2020-10-20 06:04:59,288 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:04:59,289 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 06:04:59,290 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 06:04:59,294 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 06:04:59,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 06:04:57" (1/3) ... [2020-10-20 06:04:59,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d106c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:04:59, skipping insertion in model container [2020-10-20 06:04:59,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:04:58" (2/3) ... [2020-10-20 06:04:59,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d106c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:04:59, skipping insertion in model container [2020-10-20 06:04:59,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:04:59" (3/3) ... [2020-10-20 06:04:59,299 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-rb-cnstr_1-2.i [2020-10-20 06:04:59,312 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 06:04:59,320 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 63 error locations. [2020-10-20 06:04:59,336 INFO L253 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2020-10-20 06:04:59,361 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 06:04:59,361 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-20 06:04:59,362 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 06:04:59,362 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:04:59,362 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:04:59,362 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 06:04:59,363 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:04:59,363 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 06:04:59,386 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states. [2020-10-20 06:04:59,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 06:04:59,397 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:04:59,398 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:04:59,399 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:04:59,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:04:59,406 INFO L82 PathProgramCache]: Analyzing trace with hash -617895342, now seen corresponding path program 1 times [2020-10-20 06:04:59,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:04:59,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675953177] [2020-10-20 06:04:59,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:04:59,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:04:59,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:04:59,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:04:59,687 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 06:04:59,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675953177] [2020-10-20 06:04:59,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:04:59,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 06:04:59,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692224396] [2020-10-20 06:04:59,695 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:04:59,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:04:59,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:04:59,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:04:59,724 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 4 states. [2020-10-20 06:05:00,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:05:00,184 INFO L93 Difference]: Finished difference Result 141 states and 149 transitions. [2020-10-20 06:05:00,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:05:00,186 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-20 06:05:00,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:05:00,199 INFO L225 Difference]: With dead ends: 141 [2020-10-20 06:05:00,200 INFO L226 Difference]: Without dead ends: 137 [2020-10-20 06:05:00,202 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 06:05:00,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-10-20 06:05:00,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 133. [2020-10-20 06:05:00,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-10-20 06:05:00,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 142 transitions. [2020-10-20 06:05:00,257 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 142 transitions. Word has length 7 [2020-10-20 06:05:00,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:05:00,258 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 142 transitions. [2020-10-20 06:05:00,258 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:05:00,258 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 142 transitions. [2020-10-20 06:05:00,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 06:05:00,259 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:05:00,259 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:05:00,260 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 06:05:00,260 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:05:00,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:05:00,261 INFO L82 PathProgramCache]: Analyzing trace with hash -617895341, now seen corresponding path program 1 times [2020-10-20 06:05:00,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:05:00,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993339025] [2020-10-20 06:05:00,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:05:00,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:05:00,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:05:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:05:00,379 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 06:05:00,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993339025] [2020-10-20 06:05:00,388 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:05:00,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 06:05:00,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669486752] [2020-10-20 06:05:00,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:05:00,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:05:00,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:05:00,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:05:00,395 INFO L87 Difference]: Start difference. First operand 133 states and 142 transitions. Second operand 4 states. [2020-10-20 06:05:00,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:05:00,798 INFO L93 Difference]: Finished difference Result 150 states and 158 transitions. [2020-10-20 06:05:00,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:05:00,799 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-20 06:05:00,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:05:00,801 INFO L225 Difference]: With dead ends: 150 [2020-10-20 06:05:00,801 INFO L226 Difference]: Without dead ends: 150 [2020-10-20 06:05:00,806 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 06:05:00,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-10-20 06:05:00,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 137. [2020-10-20 06:05:00,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-10-20 06:05:00,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 146 transitions. [2020-10-20 06:05:00,828 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 146 transitions. Word has length 7 [2020-10-20 06:05:00,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:05:00,828 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 146 transitions. [2020-10-20 06:05:00,829 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:05:00,829 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 146 transitions. [2020-10-20 06:05:00,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 06:05:00,830 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:05:00,830 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:05:00,830 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 06:05:00,831 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:05:00,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:05:00,831 INFO L82 PathProgramCache]: Analyzing trace with hash 1237136187, now seen corresponding path program 1 times [2020-10-20 06:05:00,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:05:00,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620339201] [2020-10-20 06:05:00,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:05:00,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:05:00,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:05:00,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:05:00,930 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 06:05:00,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620339201] [2020-10-20 06:05:00,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:05:00,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 06:05:00,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842281642] [2020-10-20 06:05:00,932 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 06:05:00,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:05:00,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:05:00,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:05:00,933 INFO L87 Difference]: Start difference. First operand 137 states and 146 transitions. Second operand 5 states. [2020-10-20 06:05:01,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:05:01,282 INFO L93 Difference]: Finished difference Result 142 states and 152 transitions. [2020-10-20 06:05:01,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 06:05:01,283 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-20 06:05:01,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:05:01,285 INFO L225 Difference]: With dead ends: 142 [2020-10-20 06:05:01,285 INFO L226 Difference]: Without dead ends: 142 [2020-10-20 06:05:01,286 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 06:05:01,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-10-20 06:05:01,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 127. [2020-10-20 06:05:01,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-20 06:05:01,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 139 transitions. [2020-10-20 06:05:01,296 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 139 transitions. Word has length 13 [2020-10-20 06:05:01,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:05:01,297 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 139 transitions. [2020-10-20 06:05:01,297 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 06:05:01,297 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 139 transitions. [2020-10-20 06:05:01,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 06:05:01,298 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:05:01,298 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:05:01,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 06:05:01,299 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:05:01,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:05:01,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1237136188, now seen corresponding path program 1 times [2020-10-20 06:05:01,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:05:01,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79053367] [2020-10-20 06:05:01,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:05:01,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:05:01,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:05:01,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:05:01,430 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 06:05:01,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79053367] [2020-10-20 06:05:01,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:05:01,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 06:05:01,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875543844] [2020-10-20 06:05:01,432 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 06:05:01,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:05:01,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 06:05:01,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:05:01,433 INFO L87 Difference]: Start difference. First operand 127 states and 139 transitions. Second operand 7 states. [2020-10-20 06:05:01,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:05:01,948 INFO L93 Difference]: Finished difference Result 169 states and 183 transitions. [2020-10-20 06:05:01,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 06:05:01,949 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-10-20 06:05:01,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:05:01,950 INFO L225 Difference]: With dead ends: 169 [2020-10-20 06:05:01,951 INFO L226 Difference]: Without dead ends: 169 [2020-10-20 06:05:01,955 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 06:05:01,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-10-20 06:05:01,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 139. [2020-10-20 06:05:01,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-10-20 06:05:01,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 155 transitions. [2020-10-20 06:05:01,966 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 155 transitions. Word has length 13 [2020-10-20 06:05:01,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:05:01,966 INFO L481 AbstractCegarLoop]: Abstraction has 139 states and 155 transitions. [2020-10-20 06:05:01,966 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 06:05:01,967 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 155 transitions. [2020-10-20 06:05:01,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-20 06:05:01,967 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:05:01,968 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:05:01,968 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 06:05:01,969 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:05:01,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:05:01,969 INFO L82 PathProgramCache]: Analyzing trace with hash -818065122, now seen corresponding path program 1 times [2020-10-20 06:05:01,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:05:01,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598063059] [2020-10-20 06:05:01,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:05:01,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:05:02,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:05:02,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:05:02,056 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 06:05:02,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598063059] [2020-10-20 06:05:02,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:05:02,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 06:05:02,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690681837] [2020-10-20 06:05:02,058 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 06:05:02,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:05:02,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:05:02,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:05:02,059 INFO L87 Difference]: Start difference. First operand 139 states and 155 transitions. Second operand 6 states. [2020-10-20 06:05:02,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:05:02,505 INFO L93 Difference]: Finished difference Result 194 states and 219 transitions. [2020-10-20 06:05:02,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 06:05:02,505 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-20 06:05:02,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:05:02,507 INFO L225 Difference]: With dead ends: 194 [2020-10-20 06:05:02,507 INFO L226 Difference]: Without dead ends: 194 [2020-10-20 06:05:02,507 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-20 06:05:02,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-10-20 06:05:02,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 138. [2020-10-20 06:05:02,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-10-20 06:05:02,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 153 transitions. [2020-10-20 06:05:02,530 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 153 transitions. Word has length 15 [2020-10-20 06:05:02,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:05:02,531 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 153 transitions. [2020-10-20 06:05:02,531 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 06:05:02,531 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 153 transitions. [2020-10-20 06:05:02,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-20 06:05:02,533 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:05:02,533 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:05:02,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 06:05:02,537 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:05:02,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:05:02,537 INFO L82 PathProgramCache]: Analyzing trace with hash -818065121, now seen corresponding path program 1 times [2020-10-20 06:05:02,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:05:02,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283764511] [2020-10-20 06:05:02,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:05:02,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:05:02,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:05:02,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:05:02,645 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 06:05:02,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283764511] [2020-10-20 06:05:02,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:05:02,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 06:05:02,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028507789] [2020-10-20 06:05:02,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 06:05:02,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:05:02,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:05:02,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:05:02,647 INFO L87 Difference]: Start difference. First operand 138 states and 153 transitions. Second operand 6 states. [2020-10-20 06:05:03,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:05:03,135 INFO L93 Difference]: Finished difference Result 217 states and 243 transitions. [2020-10-20 06:05:03,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 06:05:03,136 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-20 06:05:03,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:05:03,137 INFO L225 Difference]: With dead ends: 217 [2020-10-20 06:05:03,138 INFO L226 Difference]: Without dead ends: 217 [2020-10-20 06:05:03,138 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 06:05:03,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-10-20 06:05:03,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 137. [2020-10-20 06:05:03,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-10-20 06:05:03,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 151 transitions. [2020-10-20 06:05:03,159 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 151 transitions. Word has length 15 [2020-10-20 06:05:03,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:05:03,160 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 151 transitions. [2020-10-20 06:05:03,162 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 06:05:03,162 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 151 transitions. [2020-10-20 06:05:03,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 06:05:03,163 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:05:03,163 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 06:05:03,164 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 06:05:03,166 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:05:03,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:05:03,167 INFO L82 PathProgramCache]: Analyzing trace with hash -187070592, now seen corresponding path program 1 times [2020-10-20 06:05:03,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:05:03,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826065770] [2020-10-20 06:05:03,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:05:03,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:05:03,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:05:03,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:05:03,262 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 06:05:03,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826065770] [2020-10-20 06:05:03,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:05:03,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 06:05:03,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371274118] [2020-10-20 06:05:03,266 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 06:05:03,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:05:03,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:05:03,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:05:03,268 INFO L87 Difference]: Start difference. First operand 137 states and 151 transitions. Second operand 5 states. [2020-10-20 06:05:03,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:05:03,525 INFO L93 Difference]: Finished difference Result 151 states and 162 transitions. [2020-10-20 06:05:03,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 06:05:03,525 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-20 06:05:03,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:05:03,527 INFO L225 Difference]: With dead ends: 151 [2020-10-20 06:05:03,527 INFO L226 Difference]: Without dead ends: 151 [2020-10-20 06:05:03,527 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 06:05:03,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-10-20 06:05:03,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 136. [2020-10-20 06:05:03,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-20 06:05:03,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 147 transitions. [2020-10-20 06:05:03,533 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 147 transitions. Word has length 17 [2020-10-20 06:05:03,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:05:03,534 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 147 transitions. [2020-10-20 06:05:03,534 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 06:05:03,534 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 147 transitions. [2020-10-20 06:05:03,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-20 06:05:03,535 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:05:03,535 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:05:03,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 06:05:03,536 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:05:03,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:05:03,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1688417841, now seen corresponding path program 1 times [2020-10-20 06:05:03,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:05:03,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479039356] [2020-10-20 06:05:03,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:05:03,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:05:03,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:05:03,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:05:03,616 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 06:05:03,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479039356] [2020-10-20 06:05:03,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:05:03,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-20 06:05:03,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165922640] [2020-10-20 06:05:03,618 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 06:05:03,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:05:03,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 06:05:03,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:05:03,619 INFO L87 Difference]: Start difference. First operand 136 states and 147 transitions. Second operand 7 states. [2020-10-20 06:05:03,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:05:03,967 INFO L93 Difference]: Finished difference Result 194 states and 212 transitions. [2020-10-20 06:05:03,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 06:05:03,968 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-10-20 06:05:03,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:05:03,969 INFO L225 Difference]: With dead ends: 194 [2020-10-20 06:05:03,969 INFO L226 Difference]: Without dead ends: 194 [2020-10-20 06:05:03,970 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-20 06:05:03,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-10-20 06:05:03,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 141. [2020-10-20 06:05:03,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-10-20 06:05:03,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 152 transitions. [2020-10-20 06:05:03,975 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 152 transitions. Word has length 20 [2020-10-20 06:05:03,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:05:03,975 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 152 transitions. [2020-10-20 06:05:03,975 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 06:05:03,975 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 152 transitions. [2020-10-20 06:05:03,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-20 06:05:03,976 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:05:03,976 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 06:05:03,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 06:05:03,977 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:05:03,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:05:03,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1608040737, now seen corresponding path program 1 times [2020-10-20 06:05:03,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:05:03,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739103901] [2020-10-20 06:05:03,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:05:04,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:05:04,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:05:04,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:05:04,242 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 06:05:04,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739103901] [2020-10-20 06:05:04,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:05:04,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-20 06:05:04,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692028131] [2020-10-20 06:05:04,244 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-20 06:05:04,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:05:04,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-20 06:05:04,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-20 06:05:04,245 INFO L87 Difference]: Start difference. First operand 141 states and 152 transitions. Second operand 11 states. [2020-10-20 06:05:05,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:05:05,095 INFO L93 Difference]: Finished difference Result 145 states and 156 transitions. [2020-10-20 06:05:05,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-20 06:05:05,095 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 19 [2020-10-20 06:05:05,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:05:05,097 INFO L225 Difference]: With dead ends: 145 [2020-10-20 06:05:05,097 INFO L226 Difference]: Without dead ends: 145 [2020-10-20 06:05:05,098 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2020-10-20 06:05:05,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-10-20 06:05:05,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 137. [2020-10-20 06:05:05,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-10-20 06:05:05,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 149 transitions. [2020-10-20 06:05:05,104 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 149 transitions. Word has length 19 [2020-10-20 06:05:05,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:05:05,104 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 149 transitions. [2020-10-20 06:05:05,104 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-20 06:05:05,104 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 149 transitions. [2020-10-20 06:05:05,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-20 06:05:05,105 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:05:05,105 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 06:05:05,105 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-20 06:05:05,106 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:05:05,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:05:05,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1608040736, now seen corresponding path program 1 times [2020-10-20 06:05:05,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:05:05,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639996082] [2020-10-20 06:05:05,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:05:05,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:05:05,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:05:05,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:05:05,208 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 06:05:05,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639996082] [2020-10-20 06:05:05,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:05:05,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-20 06:05:05,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216381229] [2020-10-20 06:05:05,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 06:05:05,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:05:05,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 06:05:05,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-20 06:05:05,211 INFO L87 Difference]: Start difference. First operand 137 states and 149 transitions. Second operand 10 states. [2020-10-20 06:05:05,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:05:05,711 INFO L93 Difference]: Finished difference Result 137 states and 148 transitions. [2020-10-20 06:05:05,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-20 06:05:05,712 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 19 [2020-10-20 06:05:05,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:05:05,713 INFO L225 Difference]: With dead ends: 137 [2020-10-20 06:05:05,713 INFO L226 Difference]: Without dead ends: 137 [2020-10-20 06:05:05,714 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-20 06:05:05,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-10-20 06:05:05,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 136. [2020-10-20 06:05:05,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-20 06:05:05,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 148 transitions. [2020-10-20 06:05:05,718 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 148 transitions. Word has length 19 [2020-10-20 06:05:05,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:05:05,718 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 148 transitions. [2020-10-20 06:05:05,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 06:05:05,718 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 148 transitions. [2020-10-20 06:05:05,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 06:05:05,719 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:05:05,719 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] [2020-10-20 06:05:05,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-20 06:05:05,720 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:05:05,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:05:05,720 INFO L82 PathProgramCache]: Analyzing trace with hash 345747901, now seen corresponding path program 1 times [2020-10-20 06:05:05,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:05:05,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336184091] [2020-10-20 06:05:05,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:05:05,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:05:05,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:05:05,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:05:05,816 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 06:05:05,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336184091] [2020-10-20 06:05:05,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:05:05,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 06:05:05,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763971616] [2020-10-20 06:05:05,817 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 06:05:05,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:05:05,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:05:05,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:05:05,818 INFO L87 Difference]: Start difference. First operand 136 states and 148 transitions. Second operand 6 states. [2020-10-20 06:05:06,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:05:06,097 INFO L93 Difference]: Finished difference Result 140 states and 151 transitions. [2020-10-20 06:05:06,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 06:05:06,098 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-10-20 06:05:06,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:05:06,099 INFO L225 Difference]: With dead ends: 140 [2020-10-20 06:05:06,099 INFO L226 Difference]: Without dead ends: 140 [2020-10-20 06:05:06,100 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:05:06,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-10-20 06:05:06,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 135. [2020-10-20 06:05:06,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-10-20 06:05:06,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 146 transitions. [2020-10-20 06:05:06,105 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 146 transitions. Word has length 24 [2020-10-20 06:05:06,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:05:06,106 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 146 transitions. [2020-10-20 06:05:06,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 06:05:06,106 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 146 transitions. [2020-10-20 06:05:06,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-20 06:05:06,107 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:05:06,108 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 06:05:06,108 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-20 06:05:06,108 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:05:06,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:05:06,109 INFO L82 PathProgramCache]: Analyzing trace with hash 1850084719, now seen corresponding path program 1 times [2020-10-20 06:05:06,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:05:06,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294673559] [2020-10-20 06:05:06,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:05:06,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:05:06,122 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:05:06,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:05:06,131 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:05:06,162 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:05:06,162 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 06:05:06,163 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-20 06:05:06,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 06:05:06 BoogieIcfgContainer [2020-10-20 06:05:06,225 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 06:05:06,226 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:05:06,226 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:05:06,226 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:05:06,227 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:04:59" (3/4) ... [2020-10-20 06:05:06,231 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 06:05:06,232 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:05:06,234 INFO L168 Benchmark]: Toolchain (without parser) took 8483.87 ms. Allocated memory was 35.1 MB in the beginning and 97.0 MB in the end (delta: 61.9 MB). Free memory was 12.2 MB in the beginning and 44.7 MB in the end (delta: -32.6 MB). Peak memory consumption was 29.3 MB. Max. memory is 14.3 GB. [2020-10-20 06:05:06,239 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 33.0 MB. Free memory was 7.4 MB in the beginning and 7.3 MB in the end (delta: 42.1 kB). Peak memory consumption was 42.1 kB. Max. memory is 14.3 GB. [2020-10-20 06:05:06,240 INFO L168 Benchmark]: CACSL2BoogieTranslator took 637.77 ms. Allocated memory was 35.1 MB in the beginning and 44.6 MB in the end (delta: 9.4 MB). Free memory was 11.2 MB in the beginning and 22.9 MB in the end (delta: -11.6 MB). Peak memory consumption was 10.9 MB. Max. memory is 14.3 GB. [2020-10-20 06:05:06,242 INFO L168 Benchmark]: Boogie Preprocessor took 67.45 ms. Allocated memory is still 44.6 MB. Free memory was 22.9 MB in the beginning and 19.7 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 14.3 GB. [2020-10-20 06:05:06,242 INFO L168 Benchmark]: RCFGBuilder took 826.70 ms. Allocated memory was 44.6 MB in the beginning and 49.8 MB in the end (delta: 5.2 MB). Free memory was 19.7 MB in the beginning and 24.6 MB in the end (delta: -4.9 MB). Peak memory consumption was 12.2 MB. Max. memory is 14.3 GB. [2020-10-20 06:05:06,248 INFO L168 Benchmark]: TraceAbstraction took 6935.76 ms. Allocated memory was 49.8 MB in the beginning and 97.0 MB in the end (delta: 47.2 MB). Free memory was 24.2 MB in the beginning and 46.0 MB in the end (delta: -21.7 MB). Peak memory consumption was 25.5 MB. Max. memory is 14.3 GB. [2020-10-20 06:05:06,251 INFO L168 Benchmark]: Witness Printer took 6.22 ms. Allocated memory is still 97.0 MB. Free memory is still 44.7 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 06:05:06,261 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 33.0 MB. Free memory was 7.4 MB in the beginning and 7.3 MB in the end (delta: 42.1 kB). Peak memory consumption was 42.1 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 637.77 ms. Allocated memory was 35.1 MB in the beginning and 44.6 MB in the end (delta: 9.4 MB). Free memory was 11.2 MB in the beginning and 22.9 MB in the end (delta: -11.6 MB). Peak memory consumption was 10.9 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 67.45 ms. Allocated memory is still 44.6 MB. Free memory was 22.9 MB in the beginning and 19.7 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 14.3 GB. * RCFGBuilder took 826.70 ms. Allocated memory was 44.6 MB in the beginning and 49.8 MB in the end (delta: 5.2 MB). Free memory was 19.7 MB in the beginning and 24.6 MB in the end (delta: -4.9 MB). Peak memory consumption was 12.2 MB. Max. memory is 14.3 GB. * TraceAbstraction took 6935.76 ms. Allocated memory was 49.8 MB in the beginning and 97.0 MB in the end (delta: 47.2 MB). Free memory was 24.2 MB in the beginning and 46.0 MB in the end (delta: -21.7 MB). Peak memory consumption was 25.5 MB. Max. memory is 14.3 GB. * Witness Printer took 6.22 ms. Allocated memory is still 97.0 MB. Free memory is still 44.7 MB. There was no memory consumed. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 991]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 991. Possible FailurePath: [L1005] SLL* list = malloc(sizeof(SLL)); VAL [list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1006] list->next = ((void*)0) VAL [list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1007] list->prev = ((void*)0) VAL [list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1008] list->colour = BLACK VAL [list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1010] SLL* end = list; VAL [end={-1:0}, list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1013] COND FALSE !(__VERIFIER_nondet_int()) [L1036] end = ((void*)0) [L1037] end = list VAL [end={-1:0}, list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1040] COND FALSE !(!(((void*)0) != end)) VAL [end={-1:0}, list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1041] EXPR end->colour VAL [end={-1:0}, end->colour=1, list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1041] COND FALSE !(!(BLACK == end->colour)) [L1043] COND TRUE ((void*)0) != end VAL [end={-1:0}, list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1045] EXPR end->colour VAL [end={-1:0}, end->colour=1, list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1045] COND FALSE !(RED == end->colour) [L1051] EXPR end->next VAL [end={-1:0}, end->next={0:0}, list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1051] COND TRUE !(end->next) [L1051] CALL reach_error() [L991] COND FALSE !(0) [L991] __assert_fail ("0", "dll-rb-cnstr_1-2.c", 11, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 146 locations, 63 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 6.8s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 913 SDtfs, 1560 SDslu, 1481 SDs, 0 SdLazy, 4007 SolverSat, 195 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=146occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 280 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 195 NumberOfCodeBlocks, 195 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 14754 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:05:08,459 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:05:08,462 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:05:08,500 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:05:08,500 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:05:08,509 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:05:08,512 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:05:08,515 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:05:08,517 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:05:08,521 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:05:08,522 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:05:08,523 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:05:08,524 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:05:08,527 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:05:08,528 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:05:08,530 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:05:08,532 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:05:08,533 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:05:08,536 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:05:08,542 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:05:08,543 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:05:08,545 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:05:08,548 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:05:08,549 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:05:08,562 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:05:08,567 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:05:08,567 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:05:08,568 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:05:08,569 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:05:08,570 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:05:08,570 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:05:08,571 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:05:08,572 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:05:08,573 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:05:08,574 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:05:08,574 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:05:08,578 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:05:08,578 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:05:08,578 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:05:08,579 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:05:08,579 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:05:08,580 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-10-20 06:05:08,603 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:05:08,603 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:05:08,605 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:05:08,605 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:05:08,605 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:05:08,605 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:05:08,606 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 06:05:08,606 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:05:08,606 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:05:08,606 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 06:05:08,607 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:05:08,607 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 06:05:08,607 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 06:05:08,607 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 06:05:08,608 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 06:05:08,608 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 06:05:08,608 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 06:05:08,608 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 06:05:08,609 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 06:05:08,609 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:05:08,609 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:05:08,609 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:05:08,610 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 06:05:08,610 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 06:05:08,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:05:08,610 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:05:08,611 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 06:05:08,611 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 06:05:08,611 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 06:05:08,611 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:05:08,612 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 06:05:08,612 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 -> 79a0f3fe2cfdc34f95f5ad882c4d01fe846ad912 [2020-10-20 06:05:08,808 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:05:08,820 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:05:08,823 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:05:08,825 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:05:08,825 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:05:08,826 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i [2020-10-20 06:05:08,882 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b69028337/e895c1fbfef3446f9d107af3ed933294/FLAG113d7cae3 [2020-10-20 06:05:09,431 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:05:09,432 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i [2020-10-20 06:05:09,448 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b69028337/e895c1fbfef3446f9d107af3ed933294/FLAG113d7cae3 [2020-10-20 06:05:09,707 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b69028337/e895c1fbfef3446f9d107af3ed933294 [2020-10-20 06:05:09,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:05:09,717 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 06:05:09,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:05:09,719 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:05:09,722 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:05:09,723 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:05:09" (1/1) ... [2020-10-20 06:05:09,726 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f19dcaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:05:09, skipping insertion in model container [2020-10-20 06:05:09,727 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:05:09" (1/1) ... [2020-10-20 06:05:09,737 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:05:09,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:05:10,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:05:10,231 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:05:10,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:05:10,351 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:05:10,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:05:10 WrapperNode [2020-10-20 06:05:10,352 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:05:10,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:05:10,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:05:10,353 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:05:10,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:05:10" (1/1) ... [2020-10-20 06:05:10,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:05:10" (1/1) ... [2020-10-20 06:05:10,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:05:10" (1/1) ... [2020-10-20 06:05:10,387 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:05:10" (1/1) ... [2020-10-20 06:05:10,430 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:05:10" (1/1) ... [2020-10-20 06:05:10,445 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:05:10" (1/1) ... [2020-10-20 06:05:10,455 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:05:10" (1/1) ... [2020-10-20 06:05:10,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:05:10,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:05:10,473 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:05:10,473 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:05:10,474 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:05:10" (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 06:05:10,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-20 06:05:10,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:05:10,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-10-20 06:05:10,543 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-20 06:05:10,543 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-20 06:05:10,543 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-20 06:05:10,543 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-20 06:05:10,544 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-20 06:05:10,544 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-20 06:05:10,544 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-20 06:05:10,544 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-20 06:05:10,544 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-20 06:05:10,544 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-20 06:05:10,544 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-20 06:05:10,545 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-20 06:05:10,545 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-20 06:05:10,545 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-20 06:05:10,545 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-20 06:05:10,545 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-20 06:05:10,545 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-20 06:05:10,545 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-20 06:05:10,546 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-20 06:05:10,546 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-20 06:05:10,546 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-20 06:05:10,546 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-20 06:05:10,546 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-20 06:05:10,546 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-20 06:05:10,547 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-20 06:05:10,547 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-20 06:05:10,547 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-20 06:05:10,547 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-20 06:05:10,547 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-20 06:05:10,547 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-20 06:05:10,547 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-20 06:05:10,548 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-20 06:05:10,548 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-20 06:05:10,548 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-20 06:05:10,548 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-20 06:05:10,548 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-20 06:05:10,548 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-20 06:05:10,549 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-20 06:05:10,549 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-20 06:05:10,549 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-20 06:05:10,549 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-20 06:05:10,549 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-20 06:05:10,549 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-20 06:05:10,549 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-20 06:05:10,550 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-20 06:05:10,550 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-20 06:05:10,550 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-20 06:05:10,550 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-20 06:05:10,550 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-20 06:05:10,550 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-20 06:05:10,551 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-20 06:05:10,551 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-20 06:05:10,551 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-20 06:05:10,551 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-20 06:05:10,551 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-20 06:05:10,551 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-20 06:05:10,551 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-20 06:05:10,552 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-20 06:05:10,552 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-20 06:05:10,552 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-20 06:05:10,552 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-20 06:05:10,552 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-20 06:05:10,552 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-20 06:05:10,553 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-20 06:05:10,553 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-20 06:05:10,553 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-20 06:05:10,553 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-20 06:05:10,553 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-20 06:05:10,553 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-20 06:05:10,553 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-20 06:05:10,554 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-20 06:05:10,554 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-20 06:05:10,554 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-20 06:05:10,554 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-20 06:05:10,554 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-20 06:05:10,554 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-20 06:05:10,554 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-20 06:05:10,555 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-20 06:05:10,555 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-20 06:05:10,555 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-20 06:05:10,555 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-20 06:05:10,555 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-20 06:05:10,555 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-20 06:05:10,555 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-20 06:05:10,556 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-20 06:05:10,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-20 06:05:10,556 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-20 06:05:10,556 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-20 06:05:10,556 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-20 06:05:10,556 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-20 06:05:10,556 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-20 06:05:10,557 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-20 06:05:10,557 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-20 06:05:10,557 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-20 06:05:10,557 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-20 06:05:10,557 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-20 06:05:10,557 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-20 06:05:10,557 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-20 06:05:10,558 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-20 06:05:10,558 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-20 06:05:10,558 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-20 06:05:10,558 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-20 06:05:10,558 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-20 06:05:10,558 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-20 06:05:10,558 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-20 06:05:10,558 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-20 06:05:10,559 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-20 06:05:10,559 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-20 06:05:10,559 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-20 06:05:10,559 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-20 06:05:10,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 06:05:10,559 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-20 06:05:10,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-20 06:05:10,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-20 06:05:10,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-20 06:05:10,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-20 06:05:10,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-20 06:05:10,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 06:05:10,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-20 06:05:10,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-20 06:05:10,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:05:10,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-10-20 06:05:10,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2020-10-20 06:05:10,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2020-10-20 06:05:11,505 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:05:11,505 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-20 06:05:11,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:05:11 BoogieIcfgContainer [2020-10-20 06:05:11,520 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:05:11,522 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 06:05:11,522 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 06:05:11,525 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 06:05:11,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 06:05:09" (1/3) ... [2020-10-20 06:05:11,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@589a2457 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:05:11, skipping insertion in model container [2020-10-20 06:05:11,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:05:10" (2/3) ... [2020-10-20 06:05:11,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@589a2457 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:05:11, skipping insertion in model container [2020-10-20 06:05:11,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:05:11" (3/3) ... [2020-10-20 06:05:11,529 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-rb-cnstr_1-2.i [2020-10-20 06:05:11,540 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 06:05:11,548 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 63 error locations. [2020-10-20 06:05:11,560 INFO L253 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2020-10-20 06:05:11,577 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 06:05:11,578 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-20 06:05:11,578 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 06:05:11,578 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:05:11,578 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:05:11,578 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 06:05:11,579 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:05:11,579 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 06:05:11,596 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states. [2020-10-20 06:05:11,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 06:05:11,605 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:05:11,606 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:05:11,606 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:05:11,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:05:11,612 INFO L82 PathProgramCache]: Analyzing trace with hash 603083622, now seen corresponding path program 1 times [2020-10-20 06:05:11,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:05:11,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [509832398] [2020-10-20 06:05:11,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-20 06:05:11,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:05:11,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 06:05:11,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:05:11,890 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2020-10-20 06:05:11,891 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:05:11,899 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:05:11,900 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:05:11,901 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-20 06:05:11,915 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 06:05:11,917 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:05:11,934 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 06:05:11,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [509832398] [2020-10-20 06:05:11,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:05:11,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 06:05:11,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164138353] [2020-10-20 06:05:11,942 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:05:11,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:05:11,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:05:11,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:05:11,961 INFO L87 Difference]: Start difference. First operand 144 states. Second operand 3 states. [2020-10-20 06:05:12,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:05:12,330 INFO L93 Difference]: Finished difference Result 139 states and 147 transitions. [2020-10-20 06:05:12,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:05:12,332 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-20 06:05:12,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:05:12,344 INFO L225 Difference]: With dead ends: 139 [2020-10-20 06:05:12,344 INFO L226 Difference]: Without dead ends: 135 [2020-10-20 06:05:12,346 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:05:12,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-10-20 06:05:12,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 131. [2020-10-20 06:05:12,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-10-20 06:05:12,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 140 transitions. [2020-10-20 06:05:12,399 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 140 transitions. Word has length 7 [2020-10-20 06:05:12,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:05:12,400 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 140 transitions. [2020-10-20 06:05:12,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:05:12,400 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 140 transitions. [2020-10-20 06:05:12,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 06:05:12,401 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:05:12,401 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:05:12,618 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 06:05:12,620 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:05:12,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:05:12,621 INFO L82 PathProgramCache]: Analyzing trace with hash 603083623, now seen corresponding path program 1 times [2020-10-20 06:05:12,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:05:12,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [989386893] [2020-10-20 06:05:12,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-20 06:05:12,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:05:12,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 06:05:12,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:05:12,775 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2020-10-20 06:05:12,775 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:05:12,785 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:05:12,786 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:05:12,787 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-20 06:05:12,798 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 06:05:12,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:05:12,862 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 06:05:12,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [989386893] [2020-10-20 06:05:12,863 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:05:12,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-10-20 06:05:12,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044331814] [2020-10-20 06:05:12,866 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:05:12,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:05:12,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:05:12,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:05:12,880 INFO L87 Difference]: Start difference. First operand 131 states and 140 transitions. Second operand 4 states. [2020-10-20 06:05:13,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:05:13,364 INFO L93 Difference]: Finished difference Result 148 states and 156 transitions. [2020-10-20 06:05:13,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:05:13,365 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-20 06:05:13,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:05:13,367 INFO L225 Difference]: With dead ends: 148 [2020-10-20 06:05:13,367 INFO L226 Difference]: Without dead ends: 148 [2020-10-20 06:05:13,371 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:05:13,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-10-20 06:05:13,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 135. [2020-10-20 06:05:13,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-10-20 06:05:13,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 144 transitions. [2020-10-20 06:05:13,396 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 144 transitions. Word has length 7 [2020-10-20 06:05:13,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:05:13,397 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 144 transitions. [2020-10-20 06:05:13,397 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:05:13,397 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 144 transitions. [2020-10-20 06:05:13,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-20 06:05:13,398 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:05:13,399 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:05:13,619 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-20 06:05:13,620 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:05:13,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:05:13,621 INFO L82 PathProgramCache]: Analyzing trace with hash -738246619, now seen corresponding path program 1 times [2020-10-20 06:05:13,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:05:13,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1497482691] [2020-10-20 06:05:13,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-20 06:05:13,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:05:13,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 06:05:13,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:05:13,783 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2020-10-20 06:05:13,783 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:05:13,786 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:05:13,787 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:05:13,787 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-20 06:05:13,829 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:05:13,830 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 30 [2020-10-20 06:05:13,832 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:05:13,851 INFO L625 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2020-10-20 06:05:13,853 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-20 06:05:13,854 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:11 [2020-10-20 06:05:13,864 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 06:05:13,864 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:05:13,922 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 06:05:13,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1497482691] [2020-10-20 06:05:13,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:05:13,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-20 06:05:13,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904897817] [2020-10-20 06:05:13,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:05:13,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:05:13,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:05:13,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:05:13,925 INFO L87 Difference]: Start difference. First operand 135 states and 144 transitions. Second operand 4 states. [2020-10-20 06:05:14,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:05:14,368 INFO L93 Difference]: Finished difference Result 140 states and 150 transitions. [2020-10-20 06:05:14,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 06:05:14,368 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-20 06:05:14,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:05:14,370 INFO L225 Difference]: With dead ends: 140 [2020-10-20 06:05:14,370 INFO L226 Difference]: Without dead ends: 140 [2020-10-20 06:05:14,371 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:05:14,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-10-20 06:05:14,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 125. [2020-10-20 06:05:14,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-20 06:05:14,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 137 transitions. [2020-10-20 06:05:14,381 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 137 transitions. Word has length 12 [2020-10-20 06:05:14,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:05:14,381 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 137 transitions. [2020-10-20 06:05:14,381 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:05:14,382 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 137 transitions. [2020-10-20 06:05:14,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-20 06:05:14,382 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:05:14,382 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:05:14,594 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-20 06:05:14,596 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:05:14,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:05:14,607 INFO L82 PathProgramCache]: Analyzing trace with hash -738246618, now seen corresponding path program 1 times [2020-10-20 06:05:14,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:05:14,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [134039553] [2020-10-20 06:05:14,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-20 06:05:14,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:05:14,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 06:05:14,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:05:14,750 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2020-10-20 06:05:14,750 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:05:14,756 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:05:14,757 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:05:14,757 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-20 06:05:14,827 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:05:14,827 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2020-10-20 06:05:14,828 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:05:14,859 INFO L625 ElimStorePlain]: treesize reduction 14, result has 50.0 percent of original size [2020-10-20 06:05:14,861 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-20 06:05:14,861 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:14 [2020-10-20 06:05:14,871 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 06:05:14,871 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:05:15,125 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 06:05:15,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [134039553] [2020-10-20 06:05:15,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:05:15,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6 [2020-10-20 06:05:15,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171252941] [2020-10-20 06:05:15,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 06:05:15,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:05:15,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 06:05:15,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:05:15,128 INFO L87 Difference]: Start difference. First operand 125 states and 137 transitions. Second operand 7 states. [2020-10-20 06:05:16,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:05:16,456 INFO L93 Difference]: Finished difference Result 175 states and 190 transitions. [2020-10-20 06:05:16,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 06:05:16,456 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2020-10-20 06:05:16,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:05:16,458 INFO L225 Difference]: With dead ends: 175 [2020-10-20 06:05:16,458 INFO L226 Difference]: Without dead ends: 175 [2020-10-20 06:05:16,459 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-20 06:05:16,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-10-20 06:05:16,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 124. [2020-10-20 06:05:16,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-10-20 06:05:16,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 137 transitions. [2020-10-20 06:05:16,469 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 137 transitions. Word has length 12 [2020-10-20 06:05:16,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:05:16,469 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 137 transitions. [2020-10-20 06:05:16,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 06:05:16,470 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 137 transitions. [2020-10-20 06:05:16,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 06:05:16,470 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:05:16,470 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:05:16,681 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-20 06:05:16,683 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:05:16,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:05:16,684 INFO L82 PathProgramCache]: Analyzing trace with hash -785396184, now seen corresponding path program 1 times [2020-10-20 06:05:16,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:05:16,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1381152769] [2020-10-20 06:05:16,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-10-20 06:05:16,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:05:16,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:05:16,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:05:16,822 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2020-10-20 06:05:16,823 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:05:16,825 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:05:16,825 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:05:16,825 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-20 06:05:16,836 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 06:05:16,837 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:05:16,848 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:05:16,849 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:05:16,850 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:11 [2020-10-20 06:05:16,863 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2020-10-20 06:05:16,864 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:05:16,867 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:05:16,867 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:05:16,867 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:19, output treesize:7 [2020-10-20 06:05:16,874 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 06:05:16,875 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:05:16,886 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 06:05:16,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1381152769] [2020-10-20 06:05:16,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:05:16,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-20 06:05:16,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330977621] [2020-10-20 06:05:16,887 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 06:05:16,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:05:16,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:05:16,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:05:16,888 INFO L87 Difference]: Start difference. First operand 124 states and 137 transitions. Second operand 5 states. [2020-10-20 06:05:17,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:05:17,408 INFO L93 Difference]: Finished difference Result 175 states and 197 transitions. [2020-10-20 06:05:17,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 06:05:17,409 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-20 06:05:17,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:05:17,410 INFO L225 Difference]: With dead ends: 175 [2020-10-20 06:05:17,410 INFO L226 Difference]: Without dead ends: 175 [2020-10-20 06:05:17,411 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:05:17,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-10-20 06:05:17,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 123. [2020-10-20 06:05:17,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-10-20 06:05:17,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 136 transitions. [2020-10-20 06:05:17,420 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 136 transitions. Word has length 14 [2020-10-20 06:05:17,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:05:17,420 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 136 transitions. [2020-10-20 06:05:17,420 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 06:05:17,420 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 136 transitions. [2020-10-20 06:05:17,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 06:05:17,421 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:05:17,421 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:05:17,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-20 06:05:17,629 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:05:17,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:05:17,630 INFO L82 PathProgramCache]: Analyzing trace with hash -785396183, now seen corresponding path program 1 times [2020-10-20 06:05:17,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:05:17,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1193099297] [2020-10-20 06:05:17,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-10-20 06:05:17,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:05:17,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 06:05:17,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:05:17,783 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2020-10-20 06:05:17,784 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:05:17,793 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:05:17,793 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:05:17,793 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-20 06:05:17,821 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 06:05:17,822 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:05:17,830 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:05:17,835 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 06:05:17,836 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-20 06:05:17,843 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:05:17,844 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:05:17,844 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:28, output treesize:17 [2020-10-20 06:05:17,875 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-10-20 06:05:17,876 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:05:17,882 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:05:17,886 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2020-10-20 06:05:17,887 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-20 06:05:17,892 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:05:17,893 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 06:05:17,893 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:33, output treesize:11 [2020-10-20 06:05:17,905 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 06:05:17,905 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:05:18,041 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 06:05:18,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1193099297] [2020-10-20 06:05:18,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:05:18,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-10-20 06:05:18,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856841250] [2020-10-20 06:05:18,042 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 06:05:18,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:05:18,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 06:05:18,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-20 06:05:18,043 INFO L87 Difference]: Start difference. First operand 123 states and 136 transitions. Second operand 8 states. [2020-10-20 06:05:19,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:05:19,362 INFO L93 Difference]: Finished difference Result 198 states and 222 transitions. [2020-10-20 06:05:19,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 06:05:19,363 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2020-10-20 06:05:19,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:05:19,365 INFO L225 Difference]: With dead ends: 198 [2020-10-20 06:05:19,365 INFO L226 Difference]: Without dead ends: 198 [2020-10-20 06:05:19,366 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-10-20 06:05:19,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-10-20 06:05:19,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 122. [2020-10-20 06:05:19,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-20 06:05:19,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 135 transitions. [2020-10-20 06:05:19,372 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 135 transitions. Word has length 14 [2020-10-20 06:05:19,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:05:19,372 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 135 transitions. [2020-10-20 06:05:19,372 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 06:05:19,373 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 135 transitions. [2020-10-20 06:05:19,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-20 06:05:19,373 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:05:19,373 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:05:19,584 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-20 06:05:19,585 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:05:19,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:05:19,586 INFO L82 PathProgramCache]: Analyzing trace with hash 1142053481, now seen corresponding path program 1 times [2020-10-20 06:05:19,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:05:19,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1335582448] [2020-10-20 06:05:19,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-10-20 06:05:19,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:05:19,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:05:19,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:05:19,726 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 06:05:19,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:05:19,732 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 06:05:19,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1335582448] [2020-10-20 06:05:19,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:05:19,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-20 06:05:19,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229863095] [2020-10-20 06:05:19,733 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:05:19,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:05:19,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:05:19,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:05:19,734 INFO L87 Difference]: Start difference. First operand 122 states and 135 transitions. Second operand 4 states. [2020-10-20 06:05:20,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:05:20,051 INFO L93 Difference]: Finished difference Result 143 states and 154 transitions. [2020-10-20 06:05:20,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:05:20,052 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-20 06:05:20,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:05:20,054 INFO L225 Difference]: With dead ends: 143 [2020-10-20 06:05:20,054 INFO L226 Difference]: Without dead ends: 143 [2020-10-20 06:05:20,054 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:05:20,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-10-20 06:05:20,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 121. [2020-10-20 06:05:20,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-10-20 06:05:20,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 131 transitions. [2020-10-20 06:05:20,060 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 131 transitions. Word has length 16 [2020-10-20 06:05:20,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:05:20,061 INFO L481 AbstractCegarLoop]: Abstraction has 121 states and 131 transitions. [2020-10-20 06:05:20,061 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:05:20,061 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 131 transitions. [2020-10-20 06:05:20,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-20 06:05:20,062 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:05:20,062 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 06:05:20,271 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-10-20 06:05:20,272 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:05:20,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:05:20,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1955707076, now seen corresponding path program 1 times [2020-10-20 06:05:20,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:05:20,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2026758535] [2020-10-20 06:05:20,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-10-20 06:05:20,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:05:20,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 06:05:20,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:05:20,389 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2020-10-20 06:05:20,390 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:05:20,394 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:05:20,394 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:05:20,394 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2020-10-20 06:05:20,413 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2020-10-20 06:05:20,414 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:05:20,415 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:05:20,416 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:05:20,416 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:19, output treesize:3 [2020-10-20 06:05:20,425 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 06:05:20,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:05:20,438 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 06:05:20,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2026758535] [2020-10-20 06:05:20,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:05:20,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-10-20 06:05:20,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090141482] [2020-10-20 06:05:20,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 06:05:20,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:05:20,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:05:20,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:05:20,440 INFO L87 Difference]: Start difference. First operand 121 states and 131 transitions. Second operand 5 states. [2020-10-20 06:05:20,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:05:20,944 INFO L93 Difference]: Finished difference Result 178 states and 195 transitions. [2020-10-20 06:05:20,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 06:05:20,945 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-10-20 06:05:20,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:05:20,946 INFO L225 Difference]: With dead ends: 178 [2020-10-20 06:05:20,954 INFO L226 Difference]: Without dead ends: 178 [2020-10-20 06:05:20,955 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:05:20,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-10-20 06:05:20,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 126. [2020-10-20 06:05:20,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-10-20 06:05:20,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 136 transitions. [2020-10-20 06:05:20,964 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 136 transitions. Word has length 19 [2020-10-20 06:05:20,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:05:20,964 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 136 transitions. [2020-10-20 06:05:20,964 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 06:05:20,964 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 136 transitions. [2020-10-20 06:05:20,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 06:05:20,965 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:05:20,965 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:05:21,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-10-20 06:05:21,167 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:05:21,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:05:21,168 INFO L82 PathProgramCache]: Analyzing trace with hash -86276502, now seen corresponding path program 1 times [2020-10-20 06:05:21,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:05:21,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [345738205] [2020-10-20 06:05:21,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-10-20 06:05:21,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:05:21,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-20 06:05:21,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:05:21,307 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2020-10-20 06:05:21,307 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:05:21,310 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:05:21,310 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:05:21,310 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-20 06:05:21,351 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:05:21,352 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2020-10-20 06:05:21,353 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:05:21,380 INFO L625 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2020-10-20 06:05:21,382 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:05:21,382 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2020-10-20 06:05:21,412 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 06:05:21,413 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:05:21,426 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:05:21,427 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:05:21,428 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:30, output treesize:27 [2020-10-20 06:05:21,500 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:05:21,501 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 59 [2020-10-20 06:05:21,517 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 2, 1] term [2020-10-20 06:05:21,517 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-20 06:05:21,519 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:05:21,541 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:05:21,543 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-20 06:05:21,543 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:40 [2020-10-20 06:05:21,608 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:05:21,608 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 35 [2020-10-20 06:05:21,610 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:05:21,617 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:05:21,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [345738205] [2020-10-20 06:05:21,620 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 06:05:21,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [948169234] [2020-10-20 06:05:21,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 06:05:21,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:05:21,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-20 06:05:21,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:05:21,878 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2020-10-20 06:05:21,878 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:05:21,881 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:05:21,881 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:05:21,881 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-20 06:05:21,904 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:05:21,904 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2020-10-20 06:05:21,906 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-20 06:05:21,907 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 06:05:21,908 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 1) [2020-10-20 06:05:21,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724966670] [2020-10-20 06:05:21,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:05:22,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:05:22,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-20 06:05:22,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:05:22,019 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2020-10-20 06:05:22,020 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:05:22,021 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:05:22,022 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:05:22,022 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-20 06:05:22,056 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:05:22,056 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2020-10-20 06:05:22,058 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-20 06:05:22,059 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 1) [2020-10-20 06:05:22,060 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:05:22,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-20 06:05:22,060 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-10-20 06:05:22,060 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 06:05:22,675 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 mathsat -unsat_core_generation=3,11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 06:05:22,688 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-20 06:05:22,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 06:05:22 BoogieIcfgContainer [2020-10-20 06:05:22,688 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 06:05:22,689 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:05:22,689 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:05:22,689 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:05:22,690 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:05:11" (3/4) ... [2020-10-20 06:05:22,693 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 06:05:22,693 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:05:22,694 INFO L168 Benchmark]: Toolchain (without parser) took 12982.57 ms. Allocated memory was 36.2 MB in the beginning and 87.0 MB in the end (delta: 50.9 MB). Free memory was 17.8 MB in the beginning and 37.7 MB in the end (delta: -20.0 MB). Peak memory consumption was 30.9 MB. Max. memory is 14.3 GB. [2020-10-20 06:05:22,695 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 33.6 MB. Free memory was 11.5 MB in the beginning and 11.5 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. [2020-10-20 06:05:22,695 INFO L168 Benchmark]: CACSL2BoogieTranslator took 633.80 ms. Allocated memory was 36.2 MB in the beginning and 46.1 MB in the end (delta: 10.0 MB). Free memory was 16.9 MB in the beginning and 25.9 MB in the end (delta: -9.0 MB). Peak memory consumption was 16.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:05:22,696 INFO L168 Benchmark]: Boogie Preprocessor took 118.40 ms. Allocated memory is still 46.1 MB. Free memory was 25.9 MB in the beginning and 22.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:05:22,696 INFO L168 Benchmark]: RCFGBuilder took 1049.33 ms. Allocated memory was 46.1 MB in the beginning and 53.0 MB in the end (delta: 6.8 MB). Free memory was 22.1 MB in the beginning and 33.0 MB in the end (delta: -10.9 MB). Peak memory consumption was 16.0 MB. Max. memory is 14.3 GB. [2020-10-20 06:05:22,697 INFO L168 Benchmark]: TraceAbstraction took 11166.73 ms. Allocated memory was 53.0 MB in the beginning and 87.0 MB in the end (delta: 34.1 MB). Free memory was 32.6 MB in the beginning and 37.7 MB in the end (delta: -5.2 MB). Peak memory consumption was 28.9 MB. Max. memory is 14.3 GB. [2020-10-20 06:05:22,697 INFO L168 Benchmark]: Witness Printer took 3.96 ms. Allocated memory is still 87.0 MB. Free memory is still 37.7 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 06:05:22,700 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 33.6 MB. Free memory was 11.5 MB in the beginning and 11.5 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 633.80 ms. Allocated memory was 36.2 MB in the beginning and 46.1 MB in the end (delta: 10.0 MB). Free memory was 16.9 MB in the beginning and 25.9 MB in the end (delta: -9.0 MB). Peak memory consumption was 16.6 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 118.40 ms. Allocated memory is still 46.1 MB. Free memory was 25.9 MB in the beginning and 22.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1049.33 ms. Allocated memory was 46.1 MB in the beginning and 53.0 MB in the end (delta: 6.8 MB). Free memory was 22.1 MB in the beginning and 33.0 MB in the end (delta: -10.9 MB). Peak memory consumption was 16.0 MB. Max. memory is 14.3 GB. * TraceAbstraction took 11166.73 ms. Allocated memory was 53.0 MB in the beginning and 87.0 MB in the end (delta: 34.1 MB). Free memory was 32.6 MB in the beginning and 37.7 MB in the end (delta: -5.2 MB). Peak memory consumption was 28.9 MB. Max. memory is 14.3 GB. * Witness Printer took 3.96 ms. Allocated memory is still 87.0 MB. Free memory is still 37.7 MB. There was no memory consumed. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1019]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L1005] SLL* list = malloc(sizeof(SLL)); [L1006] list->next = ((void*)0) [L1007] list->prev = ((void*)0) [L1008] list->colour = BLACK [L1010] SLL* end = list; [L1013] COND TRUE __VERIFIER_nondet_int() [L1016] end->next = malloc(sizeof(SLL)) [L1017] EXPR end->next [L1017] end->next->prev = end [L1018] EXPR end->next [L1018] end = end->next [L1019] end->next = ((void*)0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 150 locations, 63 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 11.1s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 691 SDtfs, 1234 SDslu, 908 SDs, 0 SdLazy, 1306 SolverSat, 108 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 206 GetRequests, 166 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=144occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 285 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 186 ConstructedInterpolants, 5 QuantifiedInterpolants, 8972 SizeOfPredicates, 37 NumberOfNonLiveVariables, 688 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...