./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/heap-manipulation/merge_sort_false-unreach-call_false-valid-memcleanup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a8922fdb-556a-4b5e-b2fd-fae536c6a41e/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a8922fdb-556a-4b5e-b2fd-fae536c6a41e/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a8922fdb-556a-4b5e-b2fd-fae536c6a41e/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a8922fdb-556a-4b5e-b2fd-fae536c6a41e/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/heap-manipulation/merge_sort_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_a8922fdb-556a-4b5e-b2fd-fae536c6a41e/bin-2019/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a8922fdb-556a-4b5e-b2fd-fae536c6a41e/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 534681b11e8e68e6058985d885b01f2cbfa43e5b ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 08:43:36,420 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 08:43:36,420 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 08:43:36,427 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 08:43:36,427 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 08:43:36,427 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 08:43:36,428 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 08:43:36,429 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 08:43:36,430 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 08:43:36,430 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 08:43:36,430 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 08:43:36,431 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 08:43:36,431 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 08:43:36,431 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 08:43:36,432 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 08:43:36,432 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 08:43:36,433 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 08:43:36,434 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 08:43:36,435 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 08:43:36,435 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 08:43:36,436 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 08:43:36,436 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 08:43:36,438 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 08:43:36,438 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 08:43:36,438 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 08:43:36,438 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 08:43:36,439 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 08:43:36,439 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 08:43:36,440 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 08:43:36,440 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 08:43:36,440 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 08:43:36,441 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 08:43:36,441 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 08:43:36,441 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 08:43:36,441 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 08:43:36,442 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 08:43:36,442 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a8922fdb-556a-4b5e-b2fd-fae536c6a41e/bin-2019/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2018-12-08 08:43:36,449 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 08:43:36,449 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 08:43:36,449 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 08:43:36,450 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 08:43:36,450 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 08:43:36,450 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 08:43:36,450 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 08:43:36,450 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 08:43:36,450 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 08:43:36,451 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 08:43:36,451 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 08:43:36,451 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 08:43:36,451 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 08:43:36,451 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-08 08:43:36,451 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-08 08:43:36,451 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 08:43:36,451 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 08:43:36,452 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 08:43:36,452 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 08:43:36,452 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 08:43:36,452 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 08:43:36,452 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 08:43:36,452 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 08:43:36,452 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 08:43:36,452 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 08:43:36,453 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 08:43:36,453 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 08:43:36,453 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_a8922fdb-556a-4b5e-b2fd-fae536c6a41e/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 534681b11e8e68e6058985d885b01f2cbfa43e5b [2018-12-08 08:43:36,470 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 08:43:36,477 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 08:43:36,479 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 08:43:36,479 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 08:43:36,480 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 08:43:36,480 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a8922fdb-556a-4b5e-b2fd-fae536c6a41e/bin-2019/uautomizer/../../sv-benchmarks/c/heap-manipulation/merge_sort_false-unreach-call_false-valid-memcleanup.i [2018-12-08 08:43:36,519 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a8922fdb-556a-4b5e-b2fd-fae536c6a41e/bin-2019/uautomizer/data/2485f27cf/0cffecb3c0b44739aa6d3bc1cb89a87e/FLAG36b3cdcc5 [2018-12-08 08:43:36,968 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 08:43:36,969 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a8922fdb-556a-4b5e-b2fd-fae536c6a41e/sv-benchmarks/c/heap-manipulation/merge_sort_false-unreach-call_false-valid-memcleanup.i [2018-12-08 08:43:36,975 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a8922fdb-556a-4b5e-b2fd-fae536c6a41e/bin-2019/uautomizer/data/2485f27cf/0cffecb3c0b44739aa6d3bc1cb89a87e/FLAG36b3cdcc5 [2018-12-08 08:43:36,985 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a8922fdb-556a-4b5e-b2fd-fae536c6a41e/bin-2019/uautomizer/data/2485f27cf/0cffecb3c0b44739aa6d3bc1cb89a87e [2018-12-08 08:43:36,987 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 08:43:36,988 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-12-08 08:43:36,989 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 08:43:36,989 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 08:43:36,991 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 08:43:36,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:43:36" (1/1) ... [2018-12-08 08:43:36,993 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44bd7056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:43:36, skipping insertion in model container [2018-12-08 08:43:36,993 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:43:36" (1/1) ... [2018-12-08 08:43:36,998 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 08:43:37,021 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 08:43:37,230 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 08:43:37,236 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 08:43:37,264 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 08:43:37,285 INFO L195 MainTranslator]: Completed translation [2018-12-08 08:43:37,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:43:37 WrapperNode [2018-12-08 08:43:37,285 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 08:43:37,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 08:43:37,286 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 08:43:37,286 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 08:43:37,293 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:43:37" (1/1) ... [2018-12-08 08:43:37,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:43:37" (1/1) ... [2018-12-08 08:43:37,302 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:43:37" (1/1) ... [2018-12-08 08:43:37,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:43:37" (1/1) ... [2018-12-08 08:43:37,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:43:37" (1/1) ... [2018-12-08 08:43:37,320 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:43:37" (1/1) ... [2018-12-08 08:43:37,322 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:43:37" (1/1) ... [2018-12-08 08:43:37,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 08:43:37,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 08:43:37,325 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 08:43:37,325 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 08:43:37,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:43:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a8922fdb-556a-4b5e-b2fd-fae536c6a41e/bin-2019/uautomizer/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 [2018-12-08 08:43:37,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 08:43:37,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 08:43:37,356 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2018-12-08 08:43:37,356 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2018-12-08 08:43:37,356 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2018-12-08 08:43:37,356 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_single_node [2018-12-08 08:43:37,356 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_pair [2018-12-08 08:43:37,356 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_sort_core [2018-12-08 08:43:37,356 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_before [2018-12-08 08:43:37,356 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_after [2018-12-08 08:43:37,356 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 08:43:37,356 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-12-08 08:43:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2018-12-08 08:43:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2018-12-08 08:43:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-12-08 08:43:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-12-08 08:43:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-12-08 08:43:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-12-08 08:43:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-12-08 08:43:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-12-08 08:43:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-12-08 08:43:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-12-08 08:43:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-12-08 08:43:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-12-08 08:43:37,358 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-12-08 08:43:37,358 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-12-08 08:43:37,358 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-12-08 08:43:37,358 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-12-08 08:43:37,358 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-12-08 08:43:37,358 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-12-08 08:43:37,358 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-12-08 08:43:37,358 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-12-08 08:43:37,358 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-12-08 08:43:37,358 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-12-08 08:43:37,358 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-12-08 08:43:37,358 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-12-08 08:43:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-12-08 08:43:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-12-08 08:43:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-12-08 08:43:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-12-08 08:43:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-12-08 08:43:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-12-08 08:43:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-12-08 08:43:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-12-08 08:43:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-12-08 08:43:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-12-08 08:43:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-12-08 08:43:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-12-08 08:43:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-12-08 08:43:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-12-08 08:43:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-12-08 08:43:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-12-08 08:43:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-12-08 08:43:37,360 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-12-08 08:43:37,360 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-12-08 08:43:37,360 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-12-08 08:43:37,360 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-12-08 08:43:37,360 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-12-08 08:43:37,360 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-12-08 08:43:37,360 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-12-08 08:43:37,360 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-12-08 08:43:37,360 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-12-08 08:43:37,360 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-12-08 08:43:37,360 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-12-08 08:43:37,360 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-12-08 08:43:37,360 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-12-08 08:43:37,360 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-12-08 08:43:37,361 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-12-08 08:43:37,361 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-12-08 08:43:37,361 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-12-08 08:43:37,361 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-12-08 08:43:37,361 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-12-08 08:43:37,361 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-12-08 08:43:37,361 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-12-08 08:43:37,361 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-12-08 08:43:37,361 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-12-08 08:43:37,361 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-12-08 08:43:37,361 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-12-08 08:43:37,361 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-12-08 08:43:37,361 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-12-08 08:43:37,362 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-12-08 08:43:37,362 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-12-08 08:43:37,362 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-12-08 08:43:37,362 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-12-08 08:43:37,362 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-12-08 08:43:37,362 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-12-08 08:43:37,362 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-12-08 08:43:37,362 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-12-08 08:43:37,362 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-12-08 08:43:37,362 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-12-08 08:43:37,362 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-12-08 08:43:37,362 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-12-08 08:43:37,363 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-12-08 08:43:37,363 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-12-08 08:43:37,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-12-08 08:43:37,363 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-12-08 08:43:37,363 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-12-08 08:43:37,363 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-12-08 08:43:37,363 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-12-08 08:43:37,363 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-12-08 08:43:37,363 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-12-08 08:43:37,363 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-12-08 08:43:37,363 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-12-08 08:43:37,363 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-12-08 08:43:37,363 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-12-08 08:43:37,364 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-12-08 08:43:37,364 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-12-08 08:43:37,364 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-12-08 08:43:37,364 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-12-08 08:43:37,364 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-12-08 08:43:37,364 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-12-08 08:43:37,364 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-12-08 08:43:37,364 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-12-08 08:43:37,364 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-12-08 08:43:37,364 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-12-08 08:43:37,364 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2018-12-08 08:43:37,364 INFO L130 BoogieDeclarations]: Found specification of procedure merge_single_node [2018-12-08 08:43:37,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-08 08:43:37,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-08 08:43:37,365 INFO L130 BoogieDeclarations]: Found specification of procedure merge_pair [2018-12-08 08:43:37,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 08:43:37,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 08:43:37,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 08:43:37,365 INFO L130 BoogieDeclarations]: Found specification of procedure seq_sort_core [2018-12-08 08:43:37,365 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_before [2018-12-08 08:43:37,365 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_after [2018-12-08 08:43:37,365 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 08:43:37,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 08:43:37,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 08:43:37,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 08:43:37,788 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 08:43:37,788 INFO L280 CfgBuilder]: Removed 33 assue(true) statements. [2018-12-08 08:43:37,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:43:37 BoogieIcfgContainer [2018-12-08 08:43:37,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 08:43:37,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 08:43:37,789 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 08:43:37,791 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 08:43:37,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 08:43:36" (1/3) ... [2018-12-08 08:43:37,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51752634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 08:43:37, skipping insertion in model container [2018-12-08 08:43:37,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:43:37" (2/3) ... [2018-12-08 08:43:37,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51752634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 08:43:37, skipping insertion in model container [2018-12-08 08:43:37,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:43:37" (3/3) ... [2018-12-08 08:43:37,793 INFO L112 eAbstractionObserver]: Analyzing ICFG merge_sort_false-unreach-call_false-valid-memcleanup.i [2018-12-08 08:43:37,799 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 08:43:37,804 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 101 error locations. [2018-12-08 08:43:37,813 INFO L257 AbstractCegarLoop]: Starting to check reachability of 101 error locations. [2018-12-08 08:43:37,828 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 08:43:37,829 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 08:43:37,829 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-08 08:43:37,829 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 08:43:37,829 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 08:43:37,829 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 08:43:37,829 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 08:43:37,829 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 08:43:37,829 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 08:43:37,841 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states. [2018-12-08 08:43:37,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-08 08:43:37,847 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:43:37,847 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:43:37,849 INFO L423 AbstractCegarLoop]: === Iteration 1 === [merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr18ENSURES_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION]=== [2018-12-08 08:43:37,852 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:43:37,852 INFO L82 PathProgramCache]: Analyzing trace with hash -1221642360, now seen corresponding path program 1 times [2018-12-08 08:43:37,853 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:43:37,853 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:43:37,887 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:37,887 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:43:37,887 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:37,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:43:37,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:43:37,926 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:43:37,926 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 08:43:37,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 08:43:37,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 08:43:37,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 08:43:37,937 INFO L87 Difference]: Start difference. First operand 272 states. Second operand 2 states. [2018-12-08 08:43:37,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:43:37,956 INFO L93 Difference]: Finished difference Result 270 states and 295 transitions. [2018-12-08 08:43:37,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 08:43:37,956 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2018-12-08 08:43:37,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:43:37,964 INFO L225 Difference]: With dead ends: 270 [2018-12-08 08:43:37,964 INFO L226 Difference]: Without dead ends: 253 [2018-12-08 08:43:37,965 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 08:43:37,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2018-12-08 08:43:37,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253. [2018-12-08 08:43:37,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2018-12-08 08:43:37,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 266 transitions. [2018-12-08 08:43:37,996 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 266 transitions. Word has length 9 [2018-12-08 08:43:37,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:43:37,997 INFO L480 AbstractCegarLoop]: Abstraction has 253 states and 266 transitions. [2018-12-08 08:43:37,997 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 08:43:37,997 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 266 transitions. [2018-12-08 08:43:37,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-08 08:43:37,997 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:43:37,997 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:43:37,998 INFO L423 AbstractCegarLoop]: === Iteration 2 === [merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr18ENSURES_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION]=== [2018-12-08 08:43:37,998 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:43:37,998 INFO L82 PathProgramCache]: Analyzing trace with hash 782744891, now seen corresponding path program 1 times [2018-12-08 08:43:37,998 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:43:37,998 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:43:37,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:37,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:43:37,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:38,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:43:38,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:43:38,020 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:43:38,020 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 08:43:38,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 08:43:38,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 08:43:38,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 08:43:38,022 INFO L87 Difference]: Start difference. First operand 253 states and 266 transitions. Second operand 3 states. [2018-12-08 08:43:38,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:43:38,188 INFO L93 Difference]: Finished difference Result 293 states and 315 transitions. [2018-12-08 08:43:38,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 08:43:38,188 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-12-08 08:43:38,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:43:38,190 INFO L225 Difference]: With dead ends: 293 [2018-12-08 08:43:38,190 INFO L226 Difference]: Without dead ends: 292 [2018-12-08 08:43:38,190 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 08:43:38,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2018-12-08 08:43:38,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 256. [2018-12-08 08:43:38,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2018-12-08 08:43:38,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 270 transitions. [2018-12-08 08:43:38,201 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 270 transitions. Word has length 10 [2018-12-08 08:43:38,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:43:38,201 INFO L480 AbstractCegarLoop]: Abstraction has 256 states and 270 transitions. [2018-12-08 08:43:38,201 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 08:43:38,201 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 270 transitions. [2018-12-08 08:43:38,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-08 08:43:38,201 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:43:38,202 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:43:38,202 INFO L423 AbstractCegarLoop]: === Iteration 3 === [merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr18ENSURES_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION]=== [2018-12-08 08:43:38,202 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:43:38,202 INFO L82 PathProgramCache]: Analyzing trace with hash 782745869, now seen corresponding path program 1 times [2018-12-08 08:43:38,202 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:43:38,203 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:43:38,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:38,204 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:43:38,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:38,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:43:38,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:43:38,225 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:43:38,226 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 08:43:38,226 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 08:43:38,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 08:43:38,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 08:43:38,226 INFO L87 Difference]: Start difference. First operand 256 states and 270 transitions. Second operand 3 states. [2018-12-08 08:43:38,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:43:38,325 INFO L93 Difference]: Finished difference Result 271 states and 288 transitions. [2018-12-08 08:43:38,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 08:43:38,325 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-12-08 08:43:38,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:43:38,326 INFO L225 Difference]: With dead ends: 271 [2018-12-08 08:43:38,326 INFO L226 Difference]: Without dead ends: 271 [2018-12-08 08:43:38,326 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 08:43:38,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2018-12-08 08:43:38,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 254. [2018-12-08 08:43:38,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2018-12-08 08:43:38,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 268 transitions. [2018-12-08 08:43:38,333 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 268 transitions. Word has length 10 [2018-12-08 08:43:38,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:43:38,333 INFO L480 AbstractCegarLoop]: Abstraction has 254 states and 268 transitions. [2018-12-08 08:43:38,333 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 08:43:38,333 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 268 transitions. [2018-12-08 08:43:38,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-08 08:43:38,333 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:43:38,333 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:43:38,334 INFO L423 AbstractCegarLoop]: === Iteration 4 === [merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr18ENSURES_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION]=== [2018-12-08 08:43:38,334 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:43:38,334 INFO L82 PathProgramCache]: Analyzing trace with hash 782745870, now seen corresponding path program 1 times [2018-12-08 08:43:38,334 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:43:38,334 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:43:38,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:38,335 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:43:38,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:38,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:43:38,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:43:38,362 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:43:38,362 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 08:43:38,362 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 08:43:38,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 08:43:38,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 08:43:38,363 INFO L87 Difference]: Start difference. First operand 254 states and 268 transitions. Second operand 3 states. [2018-12-08 08:43:38,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:43:38,462 INFO L93 Difference]: Finished difference Result 279 states and 297 transitions. [2018-12-08 08:43:38,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 08:43:38,462 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-12-08 08:43:38,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:43:38,463 INFO L225 Difference]: With dead ends: 279 [2018-12-08 08:43:38,463 INFO L226 Difference]: Without dead ends: 279 [2018-12-08 08:43:38,464 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 08:43:38,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2018-12-08 08:43:38,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 252. [2018-12-08 08:43:38,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2018-12-08 08:43:38,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 266 transitions. [2018-12-08 08:43:38,470 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 266 transitions. Word has length 10 [2018-12-08 08:43:38,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:43:38,470 INFO L480 AbstractCegarLoop]: Abstraction has 252 states and 266 transitions. [2018-12-08 08:43:38,470 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 08:43:38,470 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 266 transitions. [2018-12-08 08:43:38,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-08 08:43:38,471 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:43:38,471 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:43:38,471 INFO L423 AbstractCegarLoop]: === Iteration 5 === [merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr18ENSURES_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION]=== [2018-12-08 08:43:38,471 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:43:38,471 INFO L82 PathProgramCache]: Analyzing trace with hash -199927265, now seen corresponding path program 1 times [2018-12-08 08:43:38,471 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:43:38,471 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:43:38,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:38,472 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:43:38,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:38,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:43:38,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:43:38,484 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:43:38,484 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 08:43:38,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 08:43:38,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 08:43:38,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 08:43:38,485 INFO L87 Difference]: Start difference. First operand 252 states and 266 transitions. Second operand 3 states. [2018-12-08 08:43:38,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:43:38,499 INFO L93 Difference]: Finished difference Result 267 states and 279 transitions. [2018-12-08 08:43:38,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 08:43:38,499 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-12-08 08:43:38,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:43:38,500 INFO L225 Difference]: With dead ends: 267 [2018-12-08 08:43:38,500 INFO L226 Difference]: Without dead ends: 266 [2018-12-08 08:43:38,501 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 08:43:38,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2018-12-08 08:43:38,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 251. [2018-12-08 08:43:38,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2018-12-08 08:43:38,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 264 transitions. [2018-12-08 08:43:38,508 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 264 transitions. Word has length 14 [2018-12-08 08:43:38,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:43:38,508 INFO L480 AbstractCegarLoop]: Abstraction has 251 states and 264 transitions. [2018-12-08 08:43:38,508 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 08:43:38,508 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 264 transitions. [2018-12-08 08:43:38,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-08 08:43:38,508 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:43:38,509 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:43:38,509 INFO L423 AbstractCegarLoop]: === Iteration 6 === [merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr18ENSURES_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION]=== [2018-12-08 08:43:38,509 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:43:38,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1704137441, now seen corresponding path program 1 times [2018-12-08 08:43:38,509 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:43:38,510 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:43:38,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:38,511 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:43:38,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:38,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:43:38,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:43:38,536 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:43:38,536 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 08:43:38,536 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 08:43:38,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 08:43:38,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 08:43:38,536 INFO L87 Difference]: Start difference. First operand 251 states and 264 transitions. Second operand 3 states. [2018-12-08 08:43:38,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:43:38,635 INFO L93 Difference]: Finished difference Result 270 states and 285 transitions. [2018-12-08 08:43:38,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 08:43:38,635 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-12-08 08:43:38,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:43:38,637 INFO L225 Difference]: With dead ends: 270 [2018-12-08 08:43:38,637 INFO L226 Difference]: Without dead ends: 270 [2018-12-08 08:43:38,637 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 08:43:38,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2018-12-08 08:43:38,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 249. [2018-12-08 08:43:38,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2018-12-08 08:43:38,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 262 transitions. [2018-12-08 08:43:38,640 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 262 transitions. Word has length 15 [2018-12-08 08:43:38,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:43:38,640 INFO L480 AbstractCegarLoop]: Abstraction has 249 states and 262 transitions. [2018-12-08 08:43:38,640 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 08:43:38,641 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 262 transitions. [2018-12-08 08:43:38,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-08 08:43:38,641 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:43:38,641 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:43:38,641 INFO L423 AbstractCegarLoop]: === Iteration 7 === [merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr18ENSURES_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION]=== [2018-12-08 08:43:38,641 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:43:38,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1704137442, now seen corresponding path program 1 times [2018-12-08 08:43:38,642 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:43:38,642 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:43:38,643 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:38,643 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:43:38,643 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:38,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:43:38,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:43:38,672 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:43:38,672 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 08:43:38,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 08:43:38,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 08:43:38,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 08:43:38,672 INFO L87 Difference]: Start difference. First operand 249 states and 262 transitions. Second operand 3 states. [2018-12-08 08:43:38,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:43:38,757 INFO L93 Difference]: Finished difference Result 278 states and 294 transitions. [2018-12-08 08:43:38,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 08:43:38,757 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-12-08 08:43:38,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:43:38,758 INFO L225 Difference]: With dead ends: 278 [2018-12-08 08:43:38,758 INFO L226 Difference]: Without dead ends: 278 [2018-12-08 08:43:38,758 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 08:43:38,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2018-12-08 08:43:38,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 247. [2018-12-08 08:43:38,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2018-12-08 08:43:38,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 260 transitions. [2018-12-08 08:43:38,762 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 260 transitions. Word has length 15 [2018-12-08 08:43:38,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:43:38,762 INFO L480 AbstractCegarLoop]: Abstraction has 247 states and 260 transitions. [2018-12-08 08:43:38,763 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 08:43:38,763 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 260 transitions. [2018-12-08 08:43:38,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-08 08:43:38,763 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:43:38,763 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:43:38,763 INFO L423 AbstractCegarLoop]: === Iteration 8 === [merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr18ENSURES_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION]=== [2018-12-08 08:43:38,764 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:43:38,764 INFO L82 PathProgramCache]: Analyzing trace with hash 664751673, now seen corresponding path program 1 times [2018-12-08 08:43:38,764 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:43:38,764 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:43:38,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:38,765 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:43:38,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:38,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:43:38,786 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:43:38,786 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:43:38,786 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 08:43:38,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 08:43:38,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 08:43:38,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 08:43:38,787 INFO L87 Difference]: Start difference. First operand 247 states and 260 transitions. Second operand 4 states. [2018-12-08 08:43:38,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:43:38,815 INFO L93 Difference]: Finished difference Result 282 states and 298 transitions. [2018-12-08 08:43:38,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 08:43:38,816 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-12-08 08:43:38,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:43:38,817 INFO L225 Difference]: With dead ends: 282 [2018-12-08 08:43:38,817 INFO L226 Difference]: Without dead ends: 282 [2018-12-08 08:43:38,817 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 08:43:38,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2018-12-08 08:43:38,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 247. [2018-12-08 08:43:38,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2018-12-08 08:43:38,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 259 transitions. [2018-12-08 08:43:38,820 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 259 transitions. Word has length 21 [2018-12-08 08:43:38,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:43:38,821 INFO L480 AbstractCegarLoop]: Abstraction has 247 states and 259 transitions. [2018-12-08 08:43:38,821 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 08:43:38,821 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 259 transitions. [2018-12-08 08:43:38,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-08 08:43:38,821 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:43:38,821 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:43:38,821 INFO L423 AbstractCegarLoop]: === Iteration 9 === [merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr18ENSURES_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION]=== [2018-12-08 08:43:38,821 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:43:38,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1799341027, now seen corresponding path program 1 times [2018-12-08 08:43:38,822 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:43:38,822 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:43:38,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:38,822 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:43:38,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:38,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:43:38,861 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:43:38,861 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:43:38,861 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 08:43:38,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 08:43:38,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 08:43:38,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-08 08:43:38,862 INFO L87 Difference]: Start difference. First operand 247 states and 259 transitions. Second operand 6 states. [2018-12-08 08:43:39,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:43:39,099 INFO L93 Difference]: Finished difference Result 260 states and 275 transitions. [2018-12-08 08:43:39,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 08:43:39,099 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-12-08 08:43:39,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:43:39,100 INFO L225 Difference]: With dead ends: 260 [2018-12-08 08:43:39,100 INFO L226 Difference]: Without dead ends: 260 [2018-12-08 08:43:39,100 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-12-08 08:43:39,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2018-12-08 08:43:39,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 240. [2018-12-08 08:43:39,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2018-12-08 08:43:39,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 254 transitions. [2018-12-08 08:43:39,104 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 254 transitions. Word has length 25 [2018-12-08 08:43:39,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:43:39,104 INFO L480 AbstractCegarLoop]: Abstraction has 240 states and 254 transitions. [2018-12-08 08:43:39,104 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 08:43:39,104 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 254 transitions. [2018-12-08 08:43:39,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-08 08:43:39,105 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:43:39,105 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:43:39,105 INFO L423 AbstractCegarLoop]: === Iteration 10 === [merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr18ENSURES_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION]=== [2018-12-08 08:43:39,105 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:43:39,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1799341026, now seen corresponding path program 1 times [2018-12-08 08:43:39,105 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:43:39,105 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:43:39,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:39,106 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:43:39,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:39,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:43:39,160 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:43:39,160 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:43:39,160 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 08:43:39,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 08:43:39,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 08:43:39,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-08 08:43:39,161 INFO L87 Difference]: Start difference. First operand 240 states and 254 transitions. Second operand 6 states. [2018-12-08 08:43:39,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:43:39,391 INFO L93 Difference]: Finished difference Result 301 states and 317 transitions. [2018-12-08 08:43:39,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 08:43:39,391 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-12-08 08:43:39,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:43:39,392 INFO L225 Difference]: With dead ends: 301 [2018-12-08 08:43:39,392 INFO L226 Difference]: Without dead ends: 301 [2018-12-08 08:43:39,392 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-12-08 08:43:39,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2018-12-08 08:43:39,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 268. [2018-12-08 08:43:39,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2018-12-08 08:43:39,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 285 transitions. [2018-12-08 08:43:39,396 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 285 transitions. Word has length 25 [2018-12-08 08:43:39,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:43:39,397 INFO L480 AbstractCegarLoop]: Abstraction has 268 states and 285 transitions. [2018-12-08 08:43:39,397 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 08:43:39,397 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 285 transitions. [2018-12-08 08:43:39,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-12-08 08:43:39,398 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:43:39,398 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:43:39,398 INFO L423 AbstractCegarLoop]: === Iteration 11 === [merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr18ENSURES_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION]=== [2018-12-08 08:43:39,398 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:43:39,399 INFO L82 PathProgramCache]: Analyzing trace with hash 34413144, now seen corresponding path program 1 times [2018-12-08 08:43:39,399 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:43:39,399 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:43:39,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:39,400 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:43:39,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:39,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:43:39,508 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:43:39,509 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:43:39,509 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-08 08:43:39,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-08 08:43:39,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-08 08:43:39,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-12-08 08:43:39,509 INFO L87 Difference]: Start difference. First operand 268 states and 285 transitions. Second operand 10 states. [2018-12-08 08:43:39,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:43:39,964 INFO L93 Difference]: Finished difference Result 295 states and 311 transitions. [2018-12-08 08:43:39,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-08 08:43:39,965 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 36 [2018-12-08 08:43:39,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:43:39,966 INFO L225 Difference]: With dead ends: 295 [2018-12-08 08:43:39,966 INFO L226 Difference]: Without dead ends: 295 [2018-12-08 08:43:39,966 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2018-12-08 08:43:39,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2018-12-08 08:43:39,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 269. [2018-12-08 08:43:39,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2018-12-08 08:43:39,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 287 transitions. [2018-12-08 08:43:39,970 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 287 transitions. Word has length 36 [2018-12-08 08:43:39,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:43:39,970 INFO L480 AbstractCegarLoop]: Abstraction has 269 states and 287 transitions. [2018-12-08 08:43:39,970 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-08 08:43:39,970 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 287 transitions. [2018-12-08 08:43:39,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-12-08 08:43:39,970 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:43:39,971 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:43:39,971 INFO L423 AbstractCegarLoop]: === Iteration 12 === [merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr18ENSURES_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION]=== [2018-12-08 08:43:39,971 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:43:39,971 INFO L82 PathProgramCache]: Analyzing trace with hash 34413145, now seen corresponding path program 1 times [2018-12-08 08:43:39,971 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:43:39,971 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:43:39,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:39,972 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:43:39,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:39,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:43:40,054 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:43:40,054 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:43:40,054 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-08 08:43:40,055 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-08 08:43:40,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-08 08:43:40,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-12-08 08:43:40,055 INFO L87 Difference]: Start difference. First operand 269 states and 287 transitions. Second operand 9 states. [2018-12-08 08:43:40,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:43:40,449 INFO L93 Difference]: Finished difference Result 294 states and 310 transitions. [2018-12-08 08:43:40,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 08:43:40,450 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 36 [2018-12-08 08:43:40,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:43:40,450 INFO L225 Difference]: With dead ends: 294 [2018-12-08 08:43:40,450 INFO L226 Difference]: Without dead ends: 294 [2018-12-08 08:43:40,451 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2018-12-08 08:43:40,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2018-12-08 08:43:40,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 269. [2018-12-08 08:43:40,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2018-12-08 08:43:40,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 286 transitions. [2018-12-08 08:43:40,456 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 286 transitions. Word has length 36 [2018-12-08 08:43:40,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:43:40,456 INFO L480 AbstractCegarLoop]: Abstraction has 269 states and 286 transitions. [2018-12-08 08:43:40,456 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-08 08:43:40,456 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 286 transitions. [2018-12-08 08:43:40,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-12-08 08:43:40,457 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:43:40,457 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:43:40,458 INFO L423 AbstractCegarLoop]: === Iteration 13 === [merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr18ENSURES_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION]=== [2018-12-08 08:43:40,458 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:43:40,458 INFO L82 PathProgramCache]: Analyzing trace with hash 2127903738, now seen corresponding path program 1 times [2018-12-08 08:43:40,458 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:43:40,458 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:43:40,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:40,459 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:43:40,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:40,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:43:40,557 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:43:40,557 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:43:40,558 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-08 08:43:40,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-08 08:43:40,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-08 08:43:40,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-12-08 08:43:40,558 INFO L87 Difference]: Start difference. First operand 269 states and 286 transitions. Second operand 10 states. [2018-12-08 08:43:41,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:43:41,018 INFO L93 Difference]: Finished difference Result 293 states and 309 transitions. [2018-12-08 08:43:41,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-08 08:43:41,019 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 36 [2018-12-08 08:43:41,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:43:41,020 INFO L225 Difference]: With dead ends: 293 [2018-12-08 08:43:41,020 INFO L226 Difference]: Without dead ends: 293 [2018-12-08 08:43:41,020 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2018-12-08 08:43:41,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2018-12-08 08:43:41,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 269. [2018-12-08 08:43:41,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2018-12-08 08:43:41,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 285 transitions. [2018-12-08 08:43:41,024 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 285 transitions. Word has length 36 [2018-12-08 08:43:41,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:43:41,024 INFO L480 AbstractCegarLoop]: Abstraction has 269 states and 285 transitions. [2018-12-08 08:43:41,024 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-08 08:43:41,024 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 285 transitions. [2018-12-08 08:43:41,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-12-08 08:43:41,025 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:43:41,025 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:43:41,025 INFO L423 AbstractCegarLoop]: === Iteration 14 === [merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr18ENSURES_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION]=== [2018-12-08 08:43:41,025 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:43:41,025 INFO L82 PathProgramCache]: Analyzing trace with hash 2127903739, now seen corresponding path program 1 times [2018-12-08 08:43:41,026 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:43:41,026 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:43:41,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:41,027 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:43:41,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:41,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:43:41,101 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:43:41,101 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:43:41,102 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 08:43:41,102 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-08 08:43:41,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-08 08:43:41,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-08 08:43:41,102 INFO L87 Difference]: Start difference. First operand 269 states and 285 transitions. Second operand 8 states. [2018-12-08 08:43:41,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:43:41,500 INFO L93 Difference]: Finished difference Result 292 states and 308 transitions. [2018-12-08 08:43:41,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 08:43:41,501 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 36 [2018-12-08 08:43:41,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:43:41,501 INFO L225 Difference]: With dead ends: 292 [2018-12-08 08:43:41,501 INFO L226 Difference]: Without dead ends: 292 [2018-12-08 08:43:41,502 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-12-08 08:43:41,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2018-12-08 08:43:41,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 269. [2018-12-08 08:43:41,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2018-12-08 08:43:41,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 284 transitions. [2018-12-08 08:43:41,505 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 284 transitions. Word has length 36 [2018-12-08 08:43:41,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:43:41,505 INFO L480 AbstractCegarLoop]: Abstraction has 269 states and 284 transitions. [2018-12-08 08:43:41,505 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-08 08:43:41,505 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 284 transitions. [2018-12-08 08:43:41,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-12-08 08:43:41,506 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:43:41,506 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:43:41,506 INFO L423 AbstractCegarLoop]: === Iteration 15 === [merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr18ENSURES_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION]=== [2018-12-08 08:43:41,506 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:43:41,506 INFO L82 PathProgramCache]: Analyzing trace with hash -627690379, now seen corresponding path program 1 times [2018-12-08 08:43:41,506 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:43:41,506 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:43:41,507 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:41,507 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:43:41,507 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:41,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:43:41,620 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:43:41,620 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:43:41,620 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-12-08 08:43:41,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-08 08:43:41,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-08 08:43:41,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-12-08 08:43:41,621 INFO L87 Difference]: Start difference. First operand 269 states and 284 transitions. Second operand 12 states. [2018-12-08 08:43:41,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:43:41,997 INFO L93 Difference]: Finished difference Result 246 states and 260 transitions. [2018-12-08 08:43:41,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-08 08:43:41,997 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 41 [2018-12-08 08:43:41,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:43:41,998 INFO L225 Difference]: With dead ends: 246 [2018-12-08 08:43:41,998 INFO L226 Difference]: Without dead ends: 235 [2018-12-08 08:43:41,998 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2018-12-08 08:43:41,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2018-12-08 08:43:42,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 217. [2018-12-08 08:43:42,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2018-12-08 08:43:42,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 230 transitions. [2018-12-08 08:43:42,001 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 230 transitions. Word has length 41 [2018-12-08 08:43:42,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:43:42,001 INFO L480 AbstractCegarLoop]: Abstraction has 217 states and 230 transitions. [2018-12-08 08:43:42,001 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-08 08:43:42,001 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 230 transitions. [2018-12-08 08:43:42,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-08 08:43:42,001 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:43:42,001 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:43:42,002 INFO L423 AbstractCegarLoop]: === Iteration 16 === [merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr18ENSURES_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION]=== [2018-12-08 08:43:42,002 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:43:42,002 INFO L82 PathProgramCache]: Analyzing trace with hash -501181479, now seen corresponding path program 1 times [2018-12-08 08:43:42,002 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:43:42,002 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:43:42,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:42,003 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:43:42,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:42,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:43:42,028 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:43:42,028 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:43:42,028 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 08:43:42,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 08:43:42,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 08:43:42,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-08 08:43:42,028 INFO L87 Difference]: Start difference. First operand 217 states and 230 transitions. Second operand 6 states. [2018-12-08 08:43:42,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:43:42,253 INFO L93 Difference]: Finished difference Result 247 states and 266 transitions. [2018-12-08 08:43:42,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 08:43:42,253 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 46 [2018-12-08 08:43:42,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:43:42,254 INFO L225 Difference]: With dead ends: 247 [2018-12-08 08:43:42,254 INFO L226 Difference]: Without dead ends: 247 [2018-12-08 08:43:42,254 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-12-08 08:43:42,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2018-12-08 08:43:42,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 217. [2018-12-08 08:43:42,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2018-12-08 08:43:42,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 232 transitions. [2018-12-08 08:43:42,257 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 232 transitions. Word has length 46 [2018-12-08 08:43:42,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:43:42,257 INFO L480 AbstractCegarLoop]: Abstraction has 217 states and 232 transitions. [2018-12-08 08:43:42,257 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 08:43:42,257 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 232 transitions. [2018-12-08 08:43:42,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-08 08:43:42,257 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:43:42,257 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:43:42,258 INFO L423 AbstractCegarLoop]: === Iteration 17 === [merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr18ENSURES_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION]=== [2018-12-08 08:43:42,258 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:43:42,258 INFO L82 PathProgramCache]: Analyzing trace with hash -501181478, now seen corresponding path program 1 times [2018-12-08 08:43:42,258 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:43:42,258 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:43:42,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:42,258 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:43:42,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:42,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:43:42,304 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:43:42,305 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:43:42,305 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 08:43:42,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 08:43:42,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 08:43:42,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-08 08:43:42,305 INFO L87 Difference]: Start difference. First operand 217 states and 232 transitions. Second operand 6 states. [2018-12-08 08:43:42,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:43:42,509 INFO L93 Difference]: Finished difference Result 256 states and 275 transitions. [2018-12-08 08:43:42,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 08:43:42,510 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 46 [2018-12-08 08:43:42,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:43:42,510 INFO L225 Difference]: With dead ends: 256 [2018-12-08 08:43:42,510 INFO L226 Difference]: Without dead ends: 256 [2018-12-08 08:43:42,510 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-12-08 08:43:42,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2018-12-08 08:43:42,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 229. [2018-12-08 08:43:42,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2018-12-08 08:43:42,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 247 transitions. [2018-12-08 08:43:42,513 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 247 transitions. Word has length 46 [2018-12-08 08:43:42,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:43:42,513 INFO L480 AbstractCegarLoop]: Abstraction has 229 states and 247 transitions. [2018-12-08 08:43:42,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 08:43:42,513 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 247 transitions. [2018-12-08 08:43:42,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-08 08:43:42,514 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:43:42,514 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:43:42,514 INFO L423 AbstractCegarLoop]: === Iteration 18 === [merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr18ENSURES_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION]=== [2018-12-08 08:43:42,514 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:43:42,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1578320400, now seen corresponding path program 1 times [2018-12-08 08:43:42,514 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:43:42,514 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:43:42,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:42,515 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:43:42,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:42,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:43:42,537 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-08 08:43:42,538 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:43:42,538 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 08:43:42,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 08:43:42,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 08:43:42,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 08:43:42,538 INFO L87 Difference]: Start difference. First operand 229 states and 247 transitions. Second operand 5 states. [2018-12-08 08:43:42,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:43:42,659 INFO L93 Difference]: Finished difference Result 226 states and 244 transitions. [2018-12-08 08:43:42,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 08:43:42,659 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2018-12-08 08:43:42,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:43:42,660 INFO L225 Difference]: With dead ends: 226 [2018-12-08 08:43:42,660 INFO L226 Difference]: Without dead ends: 226 [2018-12-08 08:43:42,660 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-08 08:43:42,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2018-12-08 08:43:42,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2018-12-08 08:43:42,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2018-12-08 08:43:42,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 244 transitions. [2018-12-08 08:43:42,663 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 244 transitions. Word has length 47 [2018-12-08 08:43:42,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:43:42,663 INFO L480 AbstractCegarLoop]: Abstraction has 226 states and 244 transitions. [2018-12-08 08:43:42,663 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 08:43:42,663 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 244 transitions. [2018-12-08 08:43:42,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-08 08:43:42,664 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:43:42,664 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:43:42,664 INFO L423 AbstractCegarLoop]: === Iteration 19 === [merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr18ENSURES_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION]=== [2018-12-08 08:43:42,664 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:43:42,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1578320401, now seen corresponding path program 1 times [2018-12-08 08:43:42,664 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:43:42,664 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:43:42,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:42,665 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:43:42,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:42,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:43:42,701 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:43:42,701 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:43:42,701 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 08:43:42,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 08:43:42,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 08:43:42,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-08 08:43:42,702 INFO L87 Difference]: Start difference. First operand 226 states and 244 transitions. Second operand 6 states. [2018-12-08 08:43:42,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:43:42,881 INFO L93 Difference]: Finished difference Result 275 states and 293 transitions. [2018-12-08 08:43:42,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 08:43:42,881 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 47 [2018-12-08 08:43:42,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:43:42,882 INFO L225 Difference]: With dead ends: 275 [2018-12-08 08:43:42,882 INFO L226 Difference]: Without dead ends: 275 [2018-12-08 08:43:42,882 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-12-08 08:43:42,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2018-12-08 08:43:42,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 247. [2018-12-08 08:43:42,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2018-12-08 08:43:42,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 271 transitions. [2018-12-08 08:43:42,885 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 271 transitions. Word has length 47 [2018-12-08 08:43:42,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:43:42,885 INFO L480 AbstractCegarLoop]: Abstraction has 247 states and 271 transitions. [2018-12-08 08:43:42,885 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 08:43:42,885 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 271 transitions. [2018-12-08 08:43:42,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-12-08 08:43:42,885 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:43:42,885 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:43:42,886 INFO L423 AbstractCegarLoop]: === Iteration 20 === [merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr18ENSURES_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION]=== [2018-12-08 08:43:42,886 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:43:42,886 INFO L82 PathProgramCache]: Analyzing trace with hash -183169795, now seen corresponding path program 1 times [2018-12-08 08:43:42,886 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:43:42,886 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:43:42,887 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:42,887 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:43:42,887 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:42,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:43:42,917 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:43:42,917 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:43:42,917 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 08:43:42,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 08:43:42,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 08:43:42,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-08 08:43:42,918 INFO L87 Difference]: Start difference. First operand 247 states and 271 transitions. Second operand 6 states. [2018-12-08 08:43:42,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:43:42,990 INFO L93 Difference]: Finished difference Result 300 states and 324 transitions. [2018-12-08 08:43:42,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 08:43:42,990 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2018-12-08 08:43:42,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:43:42,991 INFO L225 Difference]: With dead ends: 300 [2018-12-08 08:43:42,991 INFO L226 Difference]: Without dead ends: 297 [2018-12-08 08:43:42,992 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-12-08 08:43:42,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2018-12-08 08:43:42,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 254. [2018-12-08 08:43:42,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2018-12-08 08:43:42,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 279 transitions. [2018-12-08 08:43:42,995 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 279 transitions. Word has length 50 [2018-12-08 08:43:42,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:43:42,996 INFO L480 AbstractCegarLoop]: Abstraction has 254 states and 279 transitions. [2018-12-08 08:43:42,996 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 08:43:42,996 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 279 transitions. [2018-12-08 08:43:42,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-12-08 08:43:42,996 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:43:42,996 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:43:42,997 INFO L423 AbstractCegarLoop]: === Iteration 21 === [merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr18ENSURES_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION]=== [2018-12-08 08:43:42,997 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:43:42,997 INFO L82 PathProgramCache]: Analyzing trace with hash -160230747, now seen corresponding path program 1 times [2018-12-08 08:43:42,997 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:43:42,997 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:43:42,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:42,998 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:43:42,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:43:43,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:43:43,154 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:43:43,154 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:43:43,154 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-12-08 08:43:43,155 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-08 08:43:43,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-08 08:43:43,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2018-12-08 08:43:43,155 INFO L87 Difference]: Start difference. First operand 254 states and 279 transitions. Second operand 14 states. [2018-12-08 08:43:43,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:43:43,470 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2018-12-08 08:43:43,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-08 08:43:43,470 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 50 [2018-12-08 08:43:43,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:43:43,471 INFO L225 Difference]: With dead ends: 44 [2018-12-08 08:43:43,471 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 08:43:43,471 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2018-12-08 08:43:43,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 08:43:43,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 08:43:43,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 08:43:43,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 08:43:43,471 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2018-12-08 08:43:43,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:43:43,471 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 08:43:43,472 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-08 08:43:43,472 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 08:43:43,472 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 08:43:43,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 08:43:43 BoogieIcfgContainer [2018-12-08 08:43:43,475 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 08:43:43,475 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 08:43:43,475 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 08:43:43,476 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 08:43:43,476 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:43:37" (3/4) ... [2018-12-08 08:43:43,478 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 08:43:43,483 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fail [2018-12-08 08:43:43,483 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-08 08:43:43,483 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure merge_pair [2018-12-08 08:43:43,483 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure merge_single_node [2018-12-08 08:43:43,483 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2018-12-08 08:43:43,483 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure seq_sort_core [2018-12-08 08:43:43,483 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2018-12-08 08:43:43,484 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure inspect_before [2018-12-08 08:43:43,484 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-08 08:43:43,484 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure inspect_after [2018-12-08 08:43:43,488 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2018-12-08 08:43:43,488 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-12-08 08:43:43,489 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-08 08:43:43,534 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a8922fdb-556a-4b5e-b2fd-fae536c6a41e/bin-2019/uautomizer/witness.graphml [2018-12-08 08:43:43,534 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 08:43:43,535 INFO L168 Benchmark]: Toolchain (without parser) took 6547.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 189.8 MB). Free memory was 951.7 MB in the beginning and 1.2 GB in the end (delta: -232.5 MB). Peak memory consumption was 321.8 MB. Max. memory is 11.5 GB. [2018-12-08 08:43:43,536 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 08:43:43,536 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -145.2 MB). Peak memory consumption was 30.0 MB. Max. memory is 11.5 GB. [2018-12-08 08:43:43,536 INFO L168 Benchmark]: Boogie Preprocessor took 39.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-08 08:43:43,536 INFO L168 Benchmark]: RCFGBuilder took 463.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 999.9 MB in the end (delta: 91.6 MB). Peak memory consumption was 91.6 MB. Max. memory is 11.5 GB. [2018-12-08 08:43:43,536 INFO L168 Benchmark]: TraceAbstraction took 5686.32 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 73.4 MB). Free memory was 999.9 MB in the beginning and 815.9 MB in the end (delta: 184.1 MB). Peak memory consumption was 257.5 MB. Max. memory is 11.5 GB. [2018-12-08 08:43:43,536 INFO L168 Benchmark]: Witness Printer took 58.83 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.3 MB). Free memory was 815.9 MB in the beginning and 1.2 GB in the end (delta: -368.3 MB). Peak memory consumption was 2.4 MB. Max. memory is 11.5 GB. [2018-12-08 08:43:43,537 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 296.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -145.2 MB). Peak memory consumption was 30.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 463.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 999.9 MB in the end (delta: 91.6 MB). Peak memory consumption was 91.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5686.32 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 73.4 MB). Free memory was 999.9 MB in the beginning and 815.9 MB in the end (delta: 184.1 MB). Peak memory consumption was 257.5 MB. Max. memory is 11.5 GB. * Witness Printer took 58.83 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.3 MB). Free memory was 815.9 MB in the beginning and 1.2 GB in the end (delta: -368.3 MB). Peak memory consumption was 2.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 578]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 577]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 578]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 577]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 578]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 577]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 578]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 578]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 578]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 578]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 573]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 578]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 573]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 573]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 578]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 573]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 578]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 573]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 578]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 573]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 578]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 577]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 568]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 571]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 567]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 568]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 571]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 570]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 570]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 570]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 567]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 569]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 570]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 568]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 569]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 568]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 594]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 594]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 595]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 594]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 594]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 588]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 598]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 598]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 595]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 590]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 597]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 590]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 597]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 588]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 614]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 609]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 609]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 614]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 614]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 609]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 608]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 614]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 613]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 608]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 607]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 613]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 612]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 607]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 605]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 612]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 605]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 605]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 605]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 609]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 632]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 647]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 644]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 647]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 644]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 625]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 638]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 637]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 638]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 637]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 648]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 648]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 650]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 650]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 633]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 632]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 651]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 633]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 651]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 622]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 619]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 623]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 622]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 622]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 622]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 623]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 622]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 620]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 619]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 622]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 620]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 101 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 278 locations, 101 error locations. SAFE Result, 5.6s OverallTime, 21 OverallIterations, 2 TraceHistogramMax, 4.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4586 SDtfs, 2008 SDslu, 10434 SDs, 0 SdLazy, 7065 SolverSat, 242 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 197 GetRequests, 49 SyntacticMatches, 10 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=272occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 21 MinimizatonAttempts, 479 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 625 NumberOfCodeBlocks, 625 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 604 ConstructedInterpolants, 0 QuantifiedInterpolants, 134191 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 30/30 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...