./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/dll-circular-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ff656256-421c-4583-b024-46e66d142cb5/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ff656256-421c-4583-b024-46e66d142cb5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ff656256-421c-4583-b024-46e66d142cb5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ff656256-421c-4583-b024-46e66d142cb5/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-circular-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_ff656256-421c-4583-b024-46e66d142cb5/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ff656256-421c-4583-b024-46e66d142cb5/bin/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 e585ced56eb20cb86f32939eb5fca0773c487edc ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:02:39,968 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:02:39,981 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:02:40,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:02:40,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:02:40,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:02:40,076 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:02:40,079 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:02:40,082 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:02:40,083 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:02:40,085 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:02:40,087 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:02:40,088 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:02:40,089 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:02:40,091 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:02:40,093 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:02:40,095 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:02:40,096 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:02:40,099 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:02:40,102 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:02:40,104 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:02:40,110 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:02:40,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:02:40,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:02:40,123 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:02:40,132 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:02:40,132 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:02:40,135 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:02:40,137 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:02:40,141 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:02:40,142 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:02:40,144 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:02:40,146 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:02:40,147 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:02:40,150 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:02:40,151 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:02:40,153 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:02:40,154 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:02:40,154 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:02:40,155 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:02:40,156 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:02:40,157 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ff656256-421c-4583-b024-46e66d142cb5/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2020-11-28 03:02:40,186 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:02:40,186 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:02:40,188 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:02:40,188 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:02:40,188 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:02:40,188 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:02:40,189 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:02:40,189 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:02:40,189 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:02:40,189 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:02:40,190 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:02:40,190 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 03:02:40,190 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 03:02:40,190 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:02:40,190 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 03:02:40,191 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:02:40,191 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:02:40,191 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:02:40,191 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:02:40,192 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:02:40,192 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:02:40,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:02:40,192 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:02:40,192 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:02:40,193 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:02:40,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:02:40,193 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:02:40,193 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_ff656256-421c-4583-b024-46e66d142cb5/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ff656256-421c-4583-b024-46e66d142cb5/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e585ced56eb20cb86f32939eb5fca0773c487edc [2020-11-28 03:02:40,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:02:40,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:02:40,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:02:40,524 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:02:40,525 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:02:40,527 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ff656256-421c-4583-b024-46e66d142cb5/bin/uautomizer/../../sv-benchmarks/c/forester-heap/dll-circular-1.i [2020-11-28 03:02:40,610 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ff656256-421c-4583-b024-46e66d142cb5/bin/uautomizer/data/27d74e358/5dd39a6ade694feea0d3315a9139394e/FLAG2ef12eae5 [2020-11-28 03:02:41,320 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:02:41,320 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ff656256-421c-4583-b024-46e66d142cb5/sv-benchmarks/c/forester-heap/dll-circular-1.i [2020-11-28 03:02:41,337 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ff656256-421c-4583-b024-46e66d142cb5/bin/uautomizer/data/27d74e358/5dd39a6ade694feea0d3315a9139394e/FLAG2ef12eae5 [2020-11-28 03:02:41,583 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ff656256-421c-4583-b024-46e66d142cb5/bin/uautomizer/data/27d74e358/5dd39a6ade694feea0d3315a9139394e [2020-11-28 03:02:41,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:02:41,591 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-28 03:02:41,598 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:02:41,599 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:02:41,603 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:02:41,604 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:02:41" (1/1) ... [2020-11-28 03:02:41,607 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76700626 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:41, skipping insertion in model container [2020-11-28 03:02:41,607 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:02:41" (1/1) ... [2020-11-28 03:02:41,616 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:02:41,695 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:02:42,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:02:42,252 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:02:42,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:02:42,370 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:02:42,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:42 WrapperNode [2020-11-28 03:02:42,372 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:02:42,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:02:42,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:02:42,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:02:42,393 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:42" (1/1) ... [2020-11-28 03:02:42,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:42" (1/1) ... [2020-11-28 03:02:42,413 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:42" (1/1) ... [2020-11-28 03:02:42,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:42" (1/1) ... [2020-11-28 03:02:42,437 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:42" (1/1) ... [2020-11-28 03:02:42,445 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:42" (1/1) ... [2020-11-28 03:02:42,450 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:42" (1/1) ... [2020-11-28 03:02:42,457 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:02:42,459 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:02:42,459 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:02:42,459 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:02:42,460 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff656256-421c-4583-b024-46e66d142cb5/bin/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 [2020-11-28 03:02:42,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-28 03:02:42,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:02:42,551 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-28 03:02:42,552 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-28 03:02:42,552 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-28 03:02:42,552 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-28 03:02:42,552 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-28 03:02:42,552 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-28 03:02:42,552 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-28 03:02:42,552 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-28 03:02:42,553 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-28 03:02:42,553 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-28 03:02:42,553 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-28 03:02:42,553 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-28 03:02:42,553 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-28 03:02:42,553 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-28 03:02:42,553 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-28 03:02:42,554 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-28 03:02:42,554 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-28 03:02:42,554 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-28 03:02:42,554 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-28 03:02:42,554 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-28 03:02:42,554 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-28 03:02:42,554 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-28 03:02:42,555 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-28 03:02:42,555 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-28 03:02:42,555 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-28 03:02:42,555 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-28 03:02:42,555 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-28 03:02:42,555 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-28 03:02:42,555 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-28 03:02:42,556 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-28 03:02:42,556 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-28 03:02:42,556 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-28 03:02:42,556 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-28 03:02:42,556 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-28 03:02:42,556 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-28 03:02:42,556 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-28 03:02:42,557 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-28 03:02:42,557 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-28 03:02:42,557 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-28 03:02:42,557 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-28 03:02:42,557 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-28 03:02:42,557 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-28 03:02:42,558 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-28 03:02:42,558 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-28 03:02:42,558 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-28 03:02:42,558 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-28 03:02:42,558 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-28 03:02:42,559 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-28 03:02:42,559 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-28 03:02:42,559 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-28 03:02:42,559 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-28 03:02:42,559 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-28 03:02:42,560 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-28 03:02:42,560 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-28 03:02:42,560 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-28 03:02:42,560 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-28 03:02:42,560 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-11-28 03:02:42,561 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-28 03:02:42,561 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-28 03:02:42,561 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-28 03:02:42,561 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-28 03:02:42,561 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-28 03:02:42,561 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-28 03:02:42,562 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-28 03:02:42,562 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-28 03:02:42,562 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-28 03:02:42,562 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-28 03:02:42,562 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-28 03:02:42,562 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-28 03:02:42,563 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-28 03:02:42,563 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-28 03:02:42,563 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-28 03:02:42,563 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-28 03:02:42,563 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-28 03:02:42,564 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-28 03:02:42,564 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-28 03:02:42,564 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-28 03:02:42,564 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-28 03:02:42,565 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-28 03:02:42,565 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-28 03:02:42,565 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-28 03:02:42,565 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-28 03:02:42,566 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-28 03:02:42,566 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-28 03:02:42,566 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-28 03:02:42,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-28 03:02:42,567 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-28 03:02:42,567 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-28 03:02:42,567 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-28 03:02:42,567 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-28 03:02:42,568 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-28 03:02:42,568 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-28 03:02:42,568 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-28 03:02:42,568 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-28 03:02:42,569 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-28 03:02:42,569 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-28 03:02:42,569 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-28 03:02:42,569 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-28 03:02:42,570 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-28 03:02:42,570 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-28 03:02:42,570 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-28 03:02:42,571 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-28 03:02:42,571 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-28 03:02:42,571 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-28 03:02:42,571 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-28 03:02:42,572 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-28 03:02:42,572 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-28 03:02:42,572 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-28 03:02:42,572 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-28 03:02:42,573 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-28 03:02:42,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:02:42,573 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-28 03:02:42,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 03:02:42,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-28 03:02:42,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:02:42,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-28 03:02:42,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:02:42,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:02:42,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-28 03:02:42,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:02:42,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:02:43,609 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:02:43,609 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 03:02:43,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:02:43 BoogieIcfgContainer [2020-11-28 03:02:43,613 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:02:43,618 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:02:43,618 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:02:43,623 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:02:43,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:02:41" (1/3) ... [2020-11-28 03:02:43,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@325a3be0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:02:43, skipping insertion in model container [2020-11-28 03:02:43,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:42" (2/3) ... [2020-11-28 03:02:43,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@325a3be0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:02:43, skipping insertion in model container [2020-11-28 03:02:43,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:02:43" (3/3) ... [2020-11-28 03:02:43,635 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-circular-1.i [2020-11-28 03:02:43,650 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:02:43,656 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 48 error locations. [2020-11-28 03:02:43,672 INFO L253 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2020-11-28 03:02:43,718 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:02:43,718 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-28 03:02:43,718 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:02:43,719 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:02:43,719 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:02:43,719 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:02:43,719 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:02:43,719 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:02:43,741 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states. [2020-11-28 03:02:43,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 03:02:43,750 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:43,751 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:02:43,753 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:02:43,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:43,762 INFO L82 PathProgramCache]: Analyzing trace with hash -2076249251, now seen corresponding path program 1 times [2020-11-28 03:02:43,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:43,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267083787] [2020-11-28 03:02:43,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:43,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:44,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:02:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:44,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:02:44,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267083787] [2020-11-28 03:02:44,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:02:44,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:02:44,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770341455] [2020-11-28 03:02:44,101 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:02:44,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:02:44,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:02:44,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:02:44,128 INFO L87 Difference]: Start difference. First operand 118 states. Second operand 4 states. [2020-11-28 03:02:44,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:02:44,768 INFO L93 Difference]: Finished difference Result 119 states and 128 transitions. [2020-11-28 03:02:44,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:02:44,771 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-28 03:02:44,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:02:44,797 INFO L225 Difference]: With dead ends: 119 [2020-11-28 03:02:44,797 INFO L226 Difference]: Without dead ends: 116 [2020-11-28 03:02:44,798 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:02:44,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-11-28 03:02:44,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 106. [2020-11-28 03:02:44,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-11-28 03:02:44,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 114 transitions. [2020-11-28 03:02:44,880 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 114 transitions. Word has length 7 [2020-11-28 03:02:44,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:02:44,880 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 114 transitions. [2020-11-28 03:02:44,882 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:02:44,882 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 114 transitions. [2020-11-28 03:02:44,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 03:02:44,883 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:44,884 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:02:44,884 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:02:44,885 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:02:44,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:44,887 INFO L82 PathProgramCache]: Analyzing trace with hash -2076249250, now seen corresponding path program 1 times [2020-11-28 03:02:44,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:44,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936815142] [2020-11-28 03:02:44,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:44,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:45,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:02:45,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:45,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:02:45,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936815142] [2020-11-28 03:02:45,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:02:45,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:02:45,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944750396] [2020-11-28 03:02:45,100 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:02:45,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:02:45,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:02:45,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:02:45,107 INFO L87 Difference]: Start difference. First operand 106 states and 114 transitions. Second operand 4 states. [2020-11-28 03:02:45,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:02:45,444 INFO L93 Difference]: Finished difference Result 114 states and 122 transitions. [2020-11-28 03:02:45,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:02:45,447 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-28 03:02:45,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:02:45,449 INFO L225 Difference]: With dead ends: 114 [2020-11-28 03:02:45,449 INFO L226 Difference]: Without dead ends: 114 [2020-11-28 03:02:45,450 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:02:45,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-11-28 03:02:45,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 102. [2020-11-28 03:02:45,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-11-28 03:02:45,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 110 transitions. [2020-11-28 03:02:45,477 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 110 transitions. Word has length 7 [2020-11-28 03:02:45,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:02:45,478 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 110 transitions. [2020-11-28 03:02:45,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:02:45,478 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 110 transitions. [2020-11-28 03:02:45,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 03:02:45,480 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:45,480 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:02:45,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:02:45,481 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:02:45,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:45,485 INFO L82 PathProgramCache]: Analyzing trace with hash -1174753481, now seen corresponding path program 1 times [2020-11-28 03:02:45,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:45,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498909642] [2020-11-28 03:02:45,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:45,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:45,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:02:45,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:45,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:02:45,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498909642] [2020-11-28 03:02:45,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:02:45,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:02:45,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207538751] [2020-11-28 03:02:45,610 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:02:45,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:02:45,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:02:45,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:02:45,612 INFO L87 Difference]: Start difference. First operand 102 states and 110 transitions. Second operand 5 states. [2020-11-28 03:02:46,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:02:46,066 INFO L93 Difference]: Finished difference Result 99 states and 108 transitions. [2020-11-28 03:02:46,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:02:46,068 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-11-28 03:02:46,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:02:46,069 INFO L225 Difference]: With dead ends: 99 [2020-11-28 03:02:46,070 INFO L226 Difference]: Without dead ends: 99 [2020-11-28 03:02:46,070 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:02:46,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-11-28 03:02:46,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 90. [2020-11-28 03:02:46,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-11-28 03:02:46,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 98 transitions. [2020-11-28 03:02:46,092 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 98 transitions. Word has length 12 [2020-11-28 03:02:46,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:02:46,092 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 98 transitions. [2020-11-28 03:02:46,093 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:02:46,093 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 98 transitions. [2020-11-28 03:02:46,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 03:02:46,094 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:46,094 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:02:46,094 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:02:46,095 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:02:46,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:46,101 INFO L82 PathProgramCache]: Analyzing trace with hash -1174753480, now seen corresponding path program 1 times [2020-11-28 03:02:46,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:46,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467561514] [2020-11-28 03:02:46,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:46,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:46,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:02:46,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:46,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:02:46,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467561514] [2020-11-28 03:02:46,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:02:46,262 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:02:46,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630996342] [2020-11-28 03:02:46,263 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:02:46,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:02:46,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:02:46,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:02:46,265 INFO L87 Difference]: Start difference. First operand 90 states and 98 transitions. Second operand 5 states. [2020-11-28 03:02:46,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:02:46,648 INFO L93 Difference]: Finished difference Result 114 states and 123 transitions. [2020-11-28 03:02:46,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:02:46,649 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-11-28 03:02:46,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:02:46,653 INFO L225 Difference]: With dead ends: 114 [2020-11-28 03:02:46,654 INFO L226 Difference]: Without dead ends: 114 [2020-11-28 03:02:46,655 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:02:46,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-11-28 03:02:46,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 98. [2020-11-28 03:02:46,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-11-28 03:02:46,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 109 transitions. [2020-11-28 03:02:46,665 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 109 transitions. Word has length 12 [2020-11-28 03:02:46,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:02:46,665 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 109 transitions. [2020-11-28 03:02:46,665 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:02:46,665 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 109 transitions. [2020-11-28 03:02:46,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 03:02:46,666 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:46,666 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:02:46,667 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:02:46,667 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:02:46,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:46,668 INFO L82 PathProgramCache]: Analyzing trace with hash 638306557, now seen corresponding path program 1 times [2020-11-28 03:02:46,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:46,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524721674] [2020-11-28 03:02:46,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:46,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:46,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:02:46,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:46,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:02:46,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524721674] [2020-11-28 03:02:46,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:02:46,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:02:46,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447771235] [2020-11-28 03:02:46,817 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:02:46,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:02:46,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:02:46,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:02:46,818 INFO L87 Difference]: Start difference. First operand 98 states and 109 transitions. Second operand 6 states. [2020-11-28 03:02:47,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:02:47,374 INFO L93 Difference]: Finished difference Result 146 states and 161 transitions. [2020-11-28 03:02:47,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:02:47,375 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-28 03:02:47,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:02:47,376 INFO L225 Difference]: With dead ends: 146 [2020-11-28 03:02:47,377 INFO L226 Difference]: Without dead ends: 146 [2020-11-28 03:02:47,377 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:02:47,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-11-28 03:02:47,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 97. [2020-11-28 03:02:47,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-11-28 03:02:47,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 107 transitions. [2020-11-28 03:02:47,401 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 107 transitions. Word has length 14 [2020-11-28 03:02:47,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:02:47,402 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 107 transitions. [2020-11-28 03:02:47,402 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:02:47,402 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 107 transitions. [2020-11-28 03:02:47,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 03:02:47,403 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:47,403 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:02:47,404 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:02:47,404 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:02:47,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:47,406 INFO L82 PathProgramCache]: Analyzing trace with hash 638306558, now seen corresponding path program 1 times [2020-11-28 03:02:47,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:47,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862243645] [2020-11-28 03:02:47,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:47,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:47,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:02:47,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:47,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:02:47,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862243645] [2020-11-28 03:02:47,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:02:47,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:02:47,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322794545] [2020-11-28 03:02:47,551 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:02:47,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:02:47,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:02:47,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:02:47,553 INFO L87 Difference]: Start difference. First operand 97 states and 107 transitions. Second operand 6 states. [2020-11-28 03:02:48,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:02:48,152 INFO L93 Difference]: Finished difference Result 147 states and 160 transitions. [2020-11-28 03:02:48,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:02:48,153 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-28 03:02:48,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:02:48,154 INFO L225 Difference]: With dead ends: 147 [2020-11-28 03:02:48,154 INFO L226 Difference]: Without dead ends: 147 [2020-11-28 03:02:48,154 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:02:48,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-11-28 03:02:48,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 96. [2020-11-28 03:02:48,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-11-28 03:02:48,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 105 transitions. [2020-11-28 03:02:48,162 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 105 transitions. Word has length 14 [2020-11-28 03:02:48,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:02:48,163 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 105 transitions. [2020-11-28 03:02:48,163 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:02:48,163 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 105 transitions. [2020-11-28 03:02:48,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 03:02:48,164 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:48,164 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:02:48,165 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:02:48,165 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:02:48,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:48,166 INFO L82 PathProgramCache]: Analyzing trace with hash 36841868, now seen corresponding path program 1 times [2020-11-28 03:02:48,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:48,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620434914] [2020-11-28 03:02:48,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:48,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:48,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:02:48,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:48,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:02:48,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620434914] [2020-11-28 03:02:48,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:02:48,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-28 03:02:48,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932285654] [2020-11-28 03:02:48,354 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-28 03:02:48,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:02:48,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-28 03:02:48,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:02:48,356 INFO L87 Difference]: Start difference. First operand 96 states and 105 transitions. Second operand 9 states. [2020-11-28 03:02:48,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:02:48,917 INFO L93 Difference]: Finished difference Result 177 states and 192 transitions. [2020-11-28 03:02:48,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 03:02:48,921 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2020-11-28 03:02:48,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:02:48,923 INFO L225 Difference]: With dead ends: 177 [2020-11-28 03:02:48,923 INFO L226 Difference]: Without dead ends: 177 [2020-11-28 03:02:48,924 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-11-28 03:02:48,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2020-11-28 03:02:48,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 99. [2020-11-28 03:02:48,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-11-28 03:02:48,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 108 transitions. [2020-11-28 03:02:48,951 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 108 transitions. Word has length 18 [2020-11-28 03:02:48,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:02:48,952 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 108 transitions. [2020-11-28 03:02:48,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-28 03:02:48,952 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 108 transitions. [2020-11-28 03:02:48,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 03:02:48,953 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:48,953 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:02:48,954 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:02:48,954 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:02:48,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:48,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1940851768, now seen corresponding path program 1 times [2020-11-28 03:02:48,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:48,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742279582] [2020-11-28 03:02:48,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:48,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:49,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:02:49,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:49,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:02:49,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742279582] [2020-11-28 03:02:49,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:02:49,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-28 03:02:49,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783514570] [2020-11-28 03:02:49,215 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-28 03:02:49,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:02:49,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-28 03:02:49,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:02:49,216 INFO L87 Difference]: Start difference. First operand 99 states and 108 transitions. Second operand 9 states. [2020-11-28 03:02:49,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:02:49,781 INFO L93 Difference]: Finished difference Result 140 states and 152 transitions. [2020-11-28 03:02:49,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-28 03:02:49,782 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2020-11-28 03:02:49,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:02:49,783 INFO L225 Difference]: With dead ends: 140 [2020-11-28 03:02:49,783 INFO L226 Difference]: Without dead ends: 140 [2020-11-28 03:02:49,784 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-11-28 03:02:49,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-11-28 03:02:49,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 101. [2020-11-28 03:02:49,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-11-28 03:02:49,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 111 transitions. [2020-11-28 03:02:49,789 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 111 transitions. Word has length 17 [2020-11-28 03:02:49,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:02:49,789 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 111 transitions. [2020-11-28 03:02:49,789 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-28 03:02:49,789 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 111 transitions. [2020-11-28 03:02:49,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 03:02:49,790 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:49,790 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:02:49,790 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:02:49,790 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:02:49,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:49,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1940851769, now seen corresponding path program 1 times [2020-11-28 03:02:49,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:49,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119533866] [2020-11-28 03:02:49,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:49,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:49,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:02:49,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:49,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:02:49,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119533866] [2020-11-28 03:02:49,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:02:49,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-28 03:02:49,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125135343] [2020-11-28 03:02:49,987 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-28 03:02:49,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:02:49,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-28 03:02:49,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:02:49,988 INFO L87 Difference]: Start difference. First operand 101 states and 111 transitions. Second operand 9 states. [2020-11-28 03:02:50,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:02:50,677 INFO L93 Difference]: Finished difference Result 171 states and 186 transitions. [2020-11-28 03:02:50,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 03:02:50,677 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2020-11-28 03:02:50,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:02:50,679 INFO L225 Difference]: With dead ends: 171 [2020-11-28 03:02:50,679 INFO L226 Difference]: Without dead ends: 171 [2020-11-28 03:02:50,679 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-11-28 03:02:50,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-11-28 03:02:50,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 113. [2020-11-28 03:02:50,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-11-28 03:02:50,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 129 transitions. [2020-11-28 03:02:50,690 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 129 transitions. Word has length 17 [2020-11-28 03:02:50,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:02:50,691 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 129 transitions. [2020-11-28 03:02:50,691 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-28 03:02:50,691 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 129 transitions. [2020-11-28 03:02:50,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 03:02:50,692 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:50,692 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:02:50,692 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 03:02:50,692 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:02:50,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:50,693 INFO L82 PathProgramCache]: Analyzing trace with hash 953731263, now seen corresponding path program 1 times [2020-11-28 03:02:50,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:50,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299894756] [2020-11-28 03:02:50,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:50,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:50,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:02:50,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:50,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:02:50,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299894756] [2020-11-28 03:02:50,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:02:50,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-28 03:02:50,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522941518] [2020-11-28 03:02:50,867 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-28 03:02:50,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:02:50,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-28 03:02:50,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-28 03:02:50,868 INFO L87 Difference]: Start difference. First operand 113 states and 129 transitions. Second operand 10 states. [2020-11-28 03:02:51,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:02:51,653 INFO L93 Difference]: Finished difference Result 121 states and 138 transitions. [2020-11-28 03:02:51,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-28 03:02:51,654 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2020-11-28 03:02:51,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:02:51,655 INFO L225 Difference]: With dead ends: 121 [2020-11-28 03:02:51,655 INFO L226 Difference]: Without dead ends: 121 [2020-11-28 03:02:51,656 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-11-28 03:02:51,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2020-11-28 03:02:51,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 112. [2020-11-28 03:02:51,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-11-28 03:02:51,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 128 transitions. [2020-11-28 03:02:51,660 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 128 transitions. Word has length 18 [2020-11-28 03:02:51,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:02:51,661 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 128 transitions. [2020-11-28 03:02:51,661 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-28 03:02:51,661 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 128 transitions. [2020-11-28 03:02:51,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 03:02:51,662 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:51,662 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:02:51,662 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 03:02:51,662 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:02:51,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:51,663 INFO L82 PathProgramCache]: Analyzing trace with hash 953731264, now seen corresponding path program 1 times [2020-11-28 03:02:51,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:51,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568188228] [2020-11-28 03:02:51,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:51,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:51,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:02:51,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:51,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:02:51,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568188228] [2020-11-28 03:02:51,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:02:51,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-28 03:02:51,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093389629] [2020-11-28 03:02:51,885 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-28 03:02:51,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:02:51,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-28 03:02:51,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-11-28 03:02:51,887 INFO L87 Difference]: Start difference. First operand 112 states and 128 transitions. Second operand 11 states. [2020-11-28 03:02:52,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:02:52,836 INFO L93 Difference]: Finished difference Result 116 states and 133 transitions. [2020-11-28 03:02:52,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-28 03:02:52,838 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 18 [2020-11-28 03:02:52,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:02:52,839 INFO L225 Difference]: With dead ends: 116 [2020-11-28 03:02:52,839 INFO L226 Difference]: Without dead ends: 116 [2020-11-28 03:02:52,840 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2020-11-28 03:02:52,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-11-28 03:02:52,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 101. [2020-11-28 03:02:52,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-11-28 03:02:52,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 117 transitions. [2020-11-28 03:02:52,848 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 117 transitions. Word has length 18 [2020-11-28 03:02:52,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:02:52,848 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 117 transitions. [2020-11-28 03:02:52,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-28 03:02:52,849 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 117 transitions. [2020-11-28 03:02:52,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-28 03:02:52,853 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:52,853 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:02:52,854 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-28 03:02:52,854 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:02:52,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:52,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1065374216, now seen corresponding path program 1 times [2020-11-28 03:02:52,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:52,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691870404] [2020-11-28 03:02:52,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:52,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:53,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:02:53,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:53,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:02:53,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691870404] [2020-11-28 03:02:53,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:02:53,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-28 03:02:53,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346591603] [2020-11-28 03:02:53,142 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-28 03:02:53,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:02:53,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-28 03:02:53,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-11-28 03:02:53,143 INFO L87 Difference]: Start difference. First operand 101 states and 117 transitions. Second operand 10 states. [2020-11-28 03:02:53,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:02:53,890 INFO L93 Difference]: Finished difference Result 147 states and 162 transitions. [2020-11-28 03:02:53,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-28 03:02:53,891 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2020-11-28 03:02:53,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:02:53,892 INFO L225 Difference]: With dead ends: 147 [2020-11-28 03:02:53,892 INFO L226 Difference]: Without dead ends: 147 [2020-11-28 03:02:53,892 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-11-28 03:02:53,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-11-28 03:02:53,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 101. [2020-11-28 03:02:53,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-11-28 03:02:53,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 116 transitions. [2020-11-28 03:02:53,898 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 116 transitions. Word has length 20 [2020-11-28 03:02:53,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:02:53,900 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 116 transitions. [2020-11-28 03:02:53,900 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-28 03:02:53,900 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 116 transitions. [2020-11-28 03:02:53,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-28 03:02:53,904 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:53,904 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:02:53,905 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-28 03:02:53,905 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:02:53,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:53,906 INFO L82 PathProgramCache]: Analyzing trace with hash 1065374217, now seen corresponding path program 1 times [2020-11-28 03:02:53,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:53,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108556322] [2020-11-28 03:02:53,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:53,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:54,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:02:54,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:54,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:02:54,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108556322] [2020-11-28 03:02:54,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:02:54,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-28 03:02:54,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262170804] [2020-11-28 03:02:54,227 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-28 03:02:54,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:02:54,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-28 03:02:54,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:02:54,228 INFO L87 Difference]: Start difference. First operand 101 states and 116 transitions. Second operand 9 states. [2020-11-28 03:02:54,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:02:54,714 INFO L93 Difference]: Finished difference Result 157 states and 172 transitions. [2020-11-28 03:02:54,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-28 03:02:54,715 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2020-11-28 03:02:54,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:02:54,716 INFO L225 Difference]: With dead ends: 157 [2020-11-28 03:02:54,716 INFO L226 Difference]: Without dead ends: 157 [2020-11-28 03:02:54,716 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-11-28 03:02:54,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-11-28 03:02:54,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 101. [2020-11-28 03:02:54,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-11-28 03:02:54,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 115 transitions. [2020-11-28 03:02:54,721 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 115 transitions. Word has length 20 [2020-11-28 03:02:54,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:02:54,721 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 115 transitions. [2020-11-28 03:02:54,721 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-28 03:02:54,721 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 115 transitions. [2020-11-28 03:02:54,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-28 03:02:54,722 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:54,722 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:02:54,722 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-28 03:02:54,723 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:02:54,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:54,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1333152464, now seen corresponding path program 1 times [2020-11-28 03:02:54,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:54,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973519164] [2020-11-28 03:02:54,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:54,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:54,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:02:54,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:54,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:02:54,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973519164] [2020-11-28 03:02:54,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:02:54,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-28 03:02:54,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023181959] [2020-11-28 03:02:54,847 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 03:02:54,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:02:54,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 03:02:54,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:02:54,848 INFO L87 Difference]: Start difference. First operand 101 states and 115 transitions. Second operand 8 states. [2020-11-28 03:02:55,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:02:55,316 INFO L93 Difference]: Finished difference Result 137 states and 155 transitions. [2020-11-28 03:02:55,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-28 03:02:55,317 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2020-11-28 03:02:55,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:02:55,318 INFO L225 Difference]: With dead ends: 137 [2020-11-28 03:02:55,318 INFO L226 Difference]: Without dead ends: 137 [2020-11-28 03:02:55,318 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-11-28 03:02:55,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-11-28 03:02:55,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 102. [2020-11-28 03:02:55,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-11-28 03:02:55,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 117 transitions. [2020-11-28 03:02:55,328 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 117 transitions. Word has length 21 [2020-11-28 03:02:55,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:02:55,329 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 117 transitions. [2020-11-28 03:02:55,329 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 03:02:55,329 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 117 transitions. [2020-11-28 03:02:55,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-28 03:02:55,330 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:55,330 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:02:55,330 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-28 03:02:55,330 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:02:55,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:55,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1333152463, now seen corresponding path program 1 times [2020-11-28 03:02:55,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:55,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632432342] [2020-11-28 03:02:55,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:55,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:55,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:02:55,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:55,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:02:55,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632432342] [2020-11-28 03:02:55,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:02:55,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-28 03:02:55,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394971128] [2020-11-28 03:02:55,661 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-28 03:02:55,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:02:55,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-28 03:02:55,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-11-28 03:02:55,663 INFO L87 Difference]: Start difference. First operand 102 states and 117 transitions. Second operand 12 states. [2020-11-28 03:02:56,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:02:56,414 INFO L93 Difference]: Finished difference Result 147 states and 163 transitions. [2020-11-28 03:02:56,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-28 03:02:56,414 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 21 [2020-11-28 03:02:56,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:02:56,415 INFO L225 Difference]: With dead ends: 147 [2020-11-28 03:02:56,415 INFO L226 Difference]: Without dead ends: 147 [2020-11-28 03:02:56,416 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2020-11-28 03:02:56,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-11-28 03:02:56,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 121. [2020-11-28 03:02:56,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-11-28 03:02:56,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 150 transitions. [2020-11-28 03:02:56,420 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 150 transitions. Word has length 21 [2020-11-28 03:02:56,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:02:56,420 INFO L481 AbstractCegarLoop]: Abstraction has 121 states and 150 transitions. [2020-11-28 03:02:56,420 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-28 03:02:56,421 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 150 transitions. [2020-11-28 03:02:56,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 03:02:56,421 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:56,421 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:02:56,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-28 03:02:56,422 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:02:56,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:56,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1259258721, now seen corresponding path program 1 times [2020-11-28 03:02:56,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:56,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375795216] [2020-11-28 03:02:56,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:56,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:56,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:02:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:56,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:02:56,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375795216] [2020-11-28 03:02:56,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:02:56,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-28 03:02:56,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69663767] [2020-11-28 03:02:56,684 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-28 03:02:56,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:02:56,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-28 03:02:56,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-11-28 03:02:56,685 INFO L87 Difference]: Start difference. First operand 121 states and 150 transitions. Second operand 12 states. [2020-11-28 03:02:57,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:02:57,288 INFO L93 Difference]: Finished difference Result 160 states and 175 transitions. [2020-11-28 03:02:57,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-28 03:02:57,288 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 23 [2020-11-28 03:02:57,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:02:57,290 INFO L225 Difference]: With dead ends: 160 [2020-11-28 03:02:57,290 INFO L226 Difference]: Without dead ends: 160 [2020-11-28 03:02:57,290 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=109, Invalid=271, Unknown=0, NotChecked=0, Total=380 [2020-11-28 03:02:57,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-11-28 03:02:57,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 122. [2020-11-28 03:02:57,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-11-28 03:02:57,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 151 transitions. [2020-11-28 03:02:57,295 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 151 transitions. Word has length 23 [2020-11-28 03:02:57,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:02:57,295 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 151 transitions. [2020-11-28 03:02:57,295 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-28 03:02:57,295 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 151 transitions. [2020-11-28 03:02:57,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 03:02:57,296 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:57,296 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:02:57,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-28 03:02:57,296 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:02:57,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:57,297 INFO L82 PathProgramCache]: Analyzing trace with hash -382314453, now seen corresponding path program 1 times [2020-11-28 03:02:57,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:57,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160550780] [2020-11-28 03:02:57,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:57,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:57,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:02:57,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:57,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:02:57,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160550780] [2020-11-28 03:02:57,475 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:02:57,475 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-28 03:02:57,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305525952] [2020-11-28 03:02:57,476 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-28 03:02:57,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:02:57,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-28 03:02:57,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:02:57,477 INFO L87 Difference]: Start difference. First operand 122 states and 151 transitions. Second operand 9 states. [2020-11-28 03:02:57,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:02:57,853 INFO L93 Difference]: Finished difference Result 153 states and 170 transitions. [2020-11-28 03:02:57,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-28 03:02:57,854 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2020-11-28 03:02:57,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:02:57,855 INFO L225 Difference]: With dead ends: 153 [2020-11-28 03:02:57,855 INFO L226 Difference]: Without dead ends: 153 [2020-11-28 03:02:57,855 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2020-11-28 03:02:57,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-11-28 03:02:57,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 123. [2020-11-28 03:02:57,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-11-28 03:02:57,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 152 transitions. [2020-11-28 03:02:57,860 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 152 transitions. Word has length 24 [2020-11-28 03:02:57,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:02:57,861 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 152 transitions. [2020-11-28 03:02:57,861 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-28 03:02:57,861 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 152 transitions. [2020-11-28 03:02:57,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 03:02:57,861 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:57,861 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:02:57,862 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-28 03:02:57,862 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:02:57,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:57,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1758832385, now seen corresponding path program 1 times [2020-11-28 03:02:57,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:57,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051420033] [2020-11-28 03:02:57,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:57,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:58,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:02:58,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:58,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:02:58,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051420033] [2020-11-28 03:02:58,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:02:58,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-28 03:02:58,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21622667] [2020-11-28 03:02:58,098 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-28 03:02:58,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:02:58,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-28 03:02:58,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-11-28 03:02:58,099 INFO L87 Difference]: Start difference. First operand 123 states and 152 transitions. Second operand 11 states. [2020-11-28 03:02:58,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:02:58,918 INFO L93 Difference]: Finished difference Result 135 states and 163 transitions. [2020-11-28 03:02:58,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-28 03:02:58,918 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-11-28 03:02:58,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:02:58,919 INFO L225 Difference]: With dead ends: 135 [2020-11-28 03:02:58,919 INFO L226 Difference]: Without dead ends: 135 [2020-11-28 03:02:58,920 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2020-11-28 03:02:58,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-11-28 03:02:58,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 122. [2020-11-28 03:02:58,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-11-28 03:02:58,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 150 transitions. [2020-11-28 03:02:58,925 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 150 transitions. Word has length 25 [2020-11-28 03:02:58,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:02:58,926 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 150 transitions. [2020-11-28 03:02:58,926 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-28 03:02:58,926 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 150 transitions. [2020-11-28 03:02:58,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 03:02:58,927 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:58,927 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:02:58,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-28 03:02:58,928 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:02:58,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:58,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1033199793, now seen corresponding path program 1 times [2020-11-28 03:02:58,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:58,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454310373] [2020-11-28 03:02:58,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:58,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:59,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:02:59,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:59,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:02:59,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454310373] [2020-11-28 03:02:59,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:02:59,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-28 03:02:59,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440612467] [2020-11-28 03:02:59,103 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-28 03:02:59,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:02:59,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-28 03:02:59,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:02:59,105 INFO L87 Difference]: Start difference. First operand 122 states and 150 transitions. Second operand 9 states. [2020-11-28 03:02:59,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:02:59,440 INFO L93 Difference]: Finished difference Result 144 states and 161 transitions. [2020-11-28 03:02:59,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 03:02:59,441 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-11-28 03:02:59,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:02:59,442 INFO L225 Difference]: With dead ends: 144 [2020-11-28 03:02:59,442 INFO L226 Difference]: Without dead ends: 144 [2020-11-28 03:02:59,442 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-11-28 03:02:59,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-11-28 03:02:59,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 124. [2020-11-28 03:02:59,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-11-28 03:02:59,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 152 transitions. [2020-11-28 03:02:59,448 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 152 transitions. Word has length 25 [2020-11-28 03:02:59,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:02:59,448 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 152 transitions. [2020-11-28 03:02:59,448 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-28 03:02:59,448 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 152 transitions. [2020-11-28 03:02:59,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-28 03:02:59,449 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:02:59,449 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:02:59,449 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-11-28 03:02:59,449 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:02:59,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:02:59,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1138174537, now seen corresponding path program 1 times [2020-11-28 03:02:59,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:02:59,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34029949] [2020-11-28 03:02:59,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:02:59,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:59,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:02:59,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:02:59,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:02:59,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34029949] [2020-11-28 03:02:59,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:02:59,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-11-28 03:02:59,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392813643] [2020-11-28 03:02:59,802 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-28 03:02:59,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:02:59,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-28 03:02:59,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-11-28 03:02:59,803 INFO L87 Difference]: Start difference. First operand 124 states and 152 transitions. Second operand 13 states. [2020-11-28 03:03:00,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:00,525 INFO L93 Difference]: Finished difference Result 145 states and 159 transitions. [2020-11-28 03:03:00,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-28 03:03:00,525 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 26 [2020-11-28 03:03:00,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:03:00,527 INFO L225 Difference]: With dead ends: 145 [2020-11-28 03:03:00,527 INFO L226 Difference]: Without dead ends: 145 [2020-11-28 03:03:00,527 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=108, Invalid=398, Unknown=0, NotChecked=0, Total=506 [2020-11-28 03:03:00,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-11-28 03:03:00,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 124. [2020-11-28 03:03:00,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-11-28 03:03:00,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 151 transitions. [2020-11-28 03:03:00,533 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 151 transitions. Word has length 26 [2020-11-28 03:03:00,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:03:00,533 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 151 transitions. [2020-11-28 03:03:00,533 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-28 03:03:00,534 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 151 transitions. [2020-11-28 03:03:00,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 03:03:00,535 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:00,536 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:00,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-11-28 03:03:00,536 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:03:00,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:00,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1902573219, now seen corresponding path program 1 times [2020-11-28 03:03:00,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:00,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030444010] [2020-11-28 03:03:00,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:00,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:00,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:03:00,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:00,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:00,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030444010] [2020-11-28 03:03:00,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:03:00,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:03:00,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234881997] [2020-11-28 03:03:00,619 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:03:00,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:03:00,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:03:00,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:03:00,620 INFO L87 Difference]: Start difference. First operand 124 states and 151 transitions. Second operand 6 states. [2020-11-28 03:03:00,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:00,842 INFO L93 Difference]: Finished difference Result 125 states and 152 transitions. [2020-11-28 03:03:00,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:03:00,842 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-11-28 03:03:00,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:03:00,844 INFO L225 Difference]: With dead ends: 125 [2020-11-28 03:03:00,844 INFO L226 Difference]: Without dead ends: 125 [2020-11-28 03:03:00,844 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:03:00,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-11-28 03:03:00,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 123. [2020-11-28 03:03:00,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-11-28 03:03:00,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 148 transitions. [2020-11-28 03:03:00,849 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 148 transitions. Word has length 25 [2020-11-28 03:03:00,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:03:00,850 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 148 transitions. [2020-11-28 03:03:00,850 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:03:00,850 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 148 transitions. [2020-11-28 03:03:00,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 03:03:00,851 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:00,851 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:00,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-11-28 03:03:00,852 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:03:00,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:00,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1902573220, now seen corresponding path program 1 times [2020-11-28 03:03:00,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:00,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912707821] [2020-11-28 03:03:00,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:00,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:01,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:03:01,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:01,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:01,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912707821] [2020-11-28 03:03:01,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:03:01,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-28 03:03:01,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375334459] [2020-11-28 03:03:01,130 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-28 03:03:01,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:03:01,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-28 03:03:01,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-11-28 03:03:01,131 INFO L87 Difference]: Start difference. First operand 123 states and 148 transitions. Second operand 11 states. [2020-11-28 03:03:01,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:01,906 INFO L93 Difference]: Finished difference Result 141 states and 155 transitions. [2020-11-28 03:03:01,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-28 03:03:01,909 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-11-28 03:03:01,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:03:01,910 INFO L225 Difference]: With dead ends: 141 [2020-11-28 03:03:01,910 INFO L226 Difference]: Without dead ends: 141 [2020-11-28 03:03:01,911 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2020-11-28 03:03:01,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-11-28 03:03:01,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 123. [2020-11-28 03:03:01,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-11-28 03:03:01,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 147 transitions. [2020-11-28 03:03:01,916 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 147 transitions. Word has length 25 [2020-11-28 03:03:01,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:03:01,916 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 147 transitions. [2020-11-28 03:03:01,916 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-28 03:03:01,916 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 147 transitions. [2020-11-28 03:03:01,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-28 03:03:01,917 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:01,918 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:01,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-11-28 03:03:01,918 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:03:01,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:01,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1963005678, now seen corresponding path program 1 times [2020-11-28 03:03:01,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:01,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306578581] [2020-11-28 03:03:01,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:01,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:02,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:03:02,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:02,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:02,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306578581] [2020-11-28 03:03:02,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:03:02,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-28 03:03:02,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493375674] [2020-11-28 03:03:02,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-28 03:03:02,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:03:02,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-28 03:03:02,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-11-28 03:03:02,148 INFO L87 Difference]: Start difference. First operand 123 states and 147 transitions. Second operand 10 states. [2020-11-28 03:03:02,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:02,816 INFO L93 Difference]: Finished difference Result 139 states and 152 transitions. [2020-11-28 03:03:02,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-28 03:03:02,816 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2020-11-28 03:03:02,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:03:02,817 INFO L225 Difference]: With dead ends: 139 [2020-11-28 03:03:02,818 INFO L226 Difference]: Without dead ends: 139 [2020-11-28 03:03:02,818 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-11-28 03:03:02,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-11-28 03:03:02,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 123. [2020-11-28 03:03:02,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-11-28 03:03:02,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 146 transitions. [2020-11-28 03:03:02,824 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 146 transitions. Word has length 26 [2020-11-28 03:03:02,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:03:02,825 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 146 transitions. [2020-11-28 03:03:02,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-28 03:03:02,825 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 146 transitions. [2020-11-28 03:03:02,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-28 03:03:02,826 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:02,826 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:02,826 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-11-28 03:03:02,826 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:03:02,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:02,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1501107432, now seen corresponding path program 1 times [2020-11-28 03:03:02,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:02,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524300502] [2020-11-28 03:03:02,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:02,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:02,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:03:02,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:02,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:03:02,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524300502] [2020-11-28 03:03:02,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:03:02,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:03:02,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215003616] [2020-11-28 03:03:02,910 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:03:02,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:03:02,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:03:02,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:03:02,912 INFO L87 Difference]: Start difference. First operand 123 states and 146 transitions. Second operand 4 states. [2020-11-28 03:03:03,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:03,104 INFO L93 Difference]: Finished difference Result 190 states and 220 transitions. [2020-11-28 03:03:03,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:03:03,104 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2020-11-28 03:03:03,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:03:03,105 INFO L225 Difference]: With dead ends: 190 [2020-11-28 03:03:03,105 INFO L226 Difference]: Without dead ends: 190 [2020-11-28 03:03:03,106 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:03:03,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-11-28 03:03:03,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 138. [2020-11-28 03:03:03,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-11-28 03:03:03,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 163 transitions. [2020-11-28 03:03:03,110 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 163 transitions. Word has length 29 [2020-11-28 03:03:03,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:03:03,111 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 163 transitions. [2020-11-28 03:03:03,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:03:03,111 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 163 transitions. [2020-11-28 03:03:03,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-28 03:03:03,111 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:03:03,111 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:03:03,111 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-11-28 03:03:03,112 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-28 03:03:03,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:03,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1665501681, now seen corresponding path program 1 times [2020-11-28 03:03:03,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:03,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048663643] [2020-11-28 03:03:03,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:03,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:03,129 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:03,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:03,144 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:03,181 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:03:03,181 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:03:03,181 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-11-28 03:03:03,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:03:03 BoogieIcfgContainer [2020-11-28 03:03:03,224 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:03:03,225 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:03:03,225 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:03:03,225 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:03:03,226 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:02:43" (3/4) ... [2020-11-28 03:03:03,228 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:03:03,294 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ff656256-421c-4583-b024-46e66d142cb5/bin/uautomizer/witness.graphml [2020-11-28 03:03:03,294 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:03:03,296 INFO L168 Benchmark]: Toolchain (without parser) took 21704.61 ms. Allocated memory was 113.2 MB in the beginning and 207.6 MB in the end (delta: 94.4 MB). Free memory was 82.0 MB in the beginning and 68.4 MB in the end (delta: 13.5 MB). Peak memory consumption was 107.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:03,297 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 86.0 MB. Free memory was 48.7 MB in the beginning and 48.6 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:03:03,298 INFO L168 Benchmark]: CACSL2BoogieTranslator took 774.22 ms. Allocated memory is still 113.2 MB. Free memory was 82.0 MB in the beginning and 78.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:03,298 INFO L168 Benchmark]: Boogie Preprocessor took 84.31 ms. Allocated memory is still 113.2 MB. Free memory was 78.8 MB in the beginning and 75.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:03,300 INFO L168 Benchmark]: RCFGBuilder took 1154.86 ms. Allocated memory is still 113.2 MB. Free memory was 75.8 MB in the beginning and 57.8 MB in the end (delta: 18.0 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:03,300 INFO L168 Benchmark]: TraceAbstraction took 19606.18 ms. Allocated memory was 113.2 MB in the beginning and 207.6 MB in the end (delta: 94.4 MB). Free memory was 57.5 MB in the beginning and 70.5 MB in the end (delta: -13.1 MB). Peak memory consumption was 84.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:03,301 INFO L168 Benchmark]: Witness Printer took 69.47 ms. Allocated memory is still 207.6 MB. Free memory was 70.5 MB in the beginning and 68.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:03,303 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 86.0 MB. Free memory was 48.7 MB in the beginning and 48.6 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 774.22 ms. Allocated memory is still 113.2 MB. Free memory was 82.0 MB in the beginning and 78.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 84.31 ms. Allocated memory is still 113.2 MB. Free memory was 78.8 MB in the beginning and 75.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1154.86 ms. Allocated memory is still 113.2 MB. Free memory was 75.8 MB in the beginning and 57.8 MB in the end (delta: 18.0 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 19606.18 ms. Allocated memory was 113.2 MB in the beginning and 207.6 MB in the end (delta: 94.4 MB). Free memory was 57.5 MB in the beginning and 70.5 MB in the end (delta: -13.1 MB). Peak memory consumption was 84.5 MB. Max. memory is 16.1 GB. * Witness Printer took 69.47 ms. Allocated memory is still 207.6 MB. Free memory was 70.5 MB in the beginning and 68.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 985]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L997] SLL* head = malloc(sizeof(SLL)); VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L998] head->next = head VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L999] head->data = 0 VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1001] SLL* x = head; [L1002] int state = 1; VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, state=1, x={-1:0}] [L1005] COND FALSE !(__VERIFIER_nondet_int()) [L1027] x->data = state VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, state=1, x={-1:0}] [L1029] EXPR head->next VAL [head={-1:0}, head->next={-1:0}, malloc(sizeof(SLL))={-1:0}, state=1, x={-1:0}] [L1029] x = head->next [L1030] COND FALSE !(!(((void*)0) != x)) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, state=1, x={-1:0}] [L1032] EXPR x->data VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, state=1, x={-1:0}, x->data=1] [L1032] COND TRUE x->data != 0 [L1034] EXPR x->next VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, state=1, x={-1:0}, x->next={-1:0}] [L1034] EXPR x->next->data VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, state=1, x={-1:0}, x->next={-1:0}, x->next->data=1] [L1034] EXPR x->next->data != 0 && x->data > x->next->data VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, state=1, x={-1:0}, x->next={-1:0}, x->next->data=1, x->next->data != 0 && x->data > x->next->data=1] [L1034] EXPR x->data VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, state=1, x={-1:0}, x->data=1, x->next={-1:0}, x->next->data=1, x->next->data != 0 && x->data > x->next->data=1] [L1034] EXPR x->next VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, state=1, x={-1:0}, x->data=1, x->next={-1:0}, x->next={-1:0}, x->next->data=1, x->next->data != 0 && x->data > x->next->data=1] [L1034] EXPR x->next->data VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, state=1, x={-1:0}, x->data=1, x->next={-1:0}, x->next={-1:0}, x->next->data=1, x->next->data=1, x->next->data != 0 && x->data > x->next->data=1] [L1034] EXPR x->next->data != 0 && x->data > x->next->data VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, state=1, x={-1:0}, x->data=1, x->next={-1:0}, x->next={-1:0}, x->next->data=1, x->next->data=1, x->next->data != 0 && x->data > x->next->data=0] [L1034] COND TRUE !(x->next->data != 0 && x->data > x->next->data) [L1034] CALL reach_error() [L985] COND FALSE !(0) [L985] __assert_fail ("0", "dll-circular-1.c", 14, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 118 locations, 48 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19.4s, OverallIterations: 25, TraceHistogramMax: 1, AutomataDifference: 13.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1618 SDtfs, 4252 SDslu, 4800 SDs, 0 SdLazy, 7917 SolverSat, 458 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 343 GetRequests, 68 SyntacticMatches, 3 SemanticMatches, 272 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 6.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 24 MinimizatonAttempts, 719 StatesRemovedByMinimization, 24 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 494 NumberOfCodeBlocks, 494 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 440 ConstructedInterpolants, 0 QuantifiedInterpolants, 79160 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 24 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...