./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/dll-token-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4276bb7f-17ae-4d1c-8867-515de8bbb611/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4276bb7f-17ae-4d1c-8867-515de8bbb611/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4276bb7f-17ae-4d1c-8867-515de8bbb611/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4276bb7f-17ae-4d1c-8867-515de8bbb611/bin/uautomizer-Z5i5R5N3CC/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-token-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4276bb7f-17ae-4d1c-8867-515de8bbb611/bin/uautomizer-Z5i5R5N3CC/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4276bb7f-17ae-4d1c-8867-515de8bbb611/bin/uautomizer-Z5i5R5N3CC --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 1d66a07d2a90ded112831066684eab385c0c1369 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-7b2dab5 [2021-10-11 00:23:10,391 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:23:10,393 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:23:10,450 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:23:10,452 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:23:10,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:23:10,463 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:23:10,467 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:23:10,470 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:23:10,476 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:23:10,477 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:23:10,478 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:23:10,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:23:10,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:23:10,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:23:10,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:23:10,485 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:23:10,486 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:23:10,488 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:23:10,490 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:23:10,492 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:23:10,493 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:23:10,495 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:23:10,496 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:23:10,499 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:23:10,500 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:23:10,500 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:23:10,501 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:23:10,502 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:23:10,503 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:23:10,503 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:23:10,504 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:23:10,505 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:23:10,506 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:23:10,507 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:23:10,507 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:23:10,508 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:23:10,508 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:23:10,509 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:23:10,510 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:23:10,510 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:23:10,511 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4276bb7f-17ae-4d1c-8867-515de8bbb611/bin/uautomizer-Z5i5R5N3CC/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2021-10-11 00:23:10,535 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:23:10,536 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:23:10,537 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:23:10,537 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:23:10,537 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:23:10,538 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:23:10,538 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:23:10,538 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:23:10,538 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:23:10,538 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:23:10,538 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:23:10,539 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-11 00:23:10,539 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-11 00:23:10,539 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:23:10,539 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 00:23:10,539 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:23:10,540 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:23:10,540 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:23:10,540 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:23:10,540 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:23:10,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:23:10,541 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:23:10,541 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:23:10,541 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:23:10,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:23:10,541 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:23:10,541 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_worker_vcloud-master_on_vcloud-master/run_dir_4276bb7f-17ae-4d1c-8867-515de8bbb611/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4276bb7f-17ae-4d1c-8867-515de8bbb611/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d66a07d2a90ded112831066684eab385c0c1369 [2021-10-11 00:23:10,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:23:10,918 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:23:10,927 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:23:10,928 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:23:10,929 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:23:10,930 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4276bb7f-17ae-4d1c-8867-515de8bbb611/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/forester-heap/dll-token-2.i [2021-10-11 00:23:10,997 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4276bb7f-17ae-4d1c-8867-515de8bbb611/bin/uautomizer-Z5i5R5N3CC/data/20f296f12/8540e2e5e0b2458298b83373f3cef3da/FLAG3f6a872bb [2021-10-11 00:23:11,531 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:23:11,531 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4276bb7f-17ae-4d1c-8867-515de8bbb611/sv-benchmarks/c/forester-heap/dll-token-2.i [2021-10-11 00:23:11,551 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4276bb7f-17ae-4d1c-8867-515de8bbb611/bin/uautomizer-Z5i5R5N3CC/data/20f296f12/8540e2e5e0b2458298b83373f3cef3da/FLAG3f6a872bb [2021-10-11 00:23:11,838 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4276bb7f-17ae-4d1c-8867-515de8bbb611/bin/uautomizer-Z5i5R5N3CC/data/20f296f12/8540e2e5e0b2458298b83373f3cef3da [2021-10-11 00:23:11,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:23:11,842 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-11 00:23:11,849 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:23:11,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:23:11,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:23:11,855 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:23:11" (1/1) ... [2021-10-11 00:23:11,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c7dc34a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:11, skipping insertion in model container [2021-10-11 00:23:11,859 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:23:11" (1/1) ... [2021-10-11 00:23:11,869 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:23:11,925 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:23:12,205 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4276bb7f-17ae-4d1c-8867-515de8bbb611/sv-benchmarks/c/forester-heap/dll-token-2.i[22229,22242] [2021-10-11 00:23:12,212 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4276bb7f-17ae-4d1c-8867-515de8bbb611/sv-benchmarks/c/forester-heap/dll-token-2.i[22398,22411] [2021-10-11 00:23:12,213 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4276bb7f-17ae-4d1c-8867-515de8bbb611/sv-benchmarks/c/forester-heap/dll-token-2.i[22489,22502] [2021-10-11 00:23:12,214 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4276bb7f-17ae-4d1c-8867-515de8bbb611/sv-benchmarks/c/forester-heap/dll-token-2.i[22571,22584] [2021-10-11 00:23:12,216 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4276bb7f-17ae-4d1c-8867-515de8bbb611/sv-benchmarks/c/forester-heap/dll-token-2.i[22649,22662] [2021-10-11 00:23:12,218 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4276bb7f-17ae-4d1c-8867-515de8bbb611/sv-benchmarks/c/forester-heap/dll-token-2.i[22795,22808] [2021-10-11 00:23:12,221 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:23:12,230 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:23:12,266 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4276bb7f-17ae-4d1c-8867-515de8bbb611/sv-benchmarks/c/forester-heap/dll-token-2.i[22229,22242] [2021-10-11 00:23:12,268 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4276bb7f-17ae-4d1c-8867-515de8bbb611/sv-benchmarks/c/forester-heap/dll-token-2.i[22398,22411] [2021-10-11 00:23:12,270 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4276bb7f-17ae-4d1c-8867-515de8bbb611/sv-benchmarks/c/forester-heap/dll-token-2.i[22489,22502] [2021-10-11 00:23:12,271 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4276bb7f-17ae-4d1c-8867-515de8bbb611/sv-benchmarks/c/forester-heap/dll-token-2.i[22571,22584] [2021-10-11 00:23:12,272 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4276bb7f-17ae-4d1c-8867-515de8bbb611/sv-benchmarks/c/forester-heap/dll-token-2.i[22649,22662] [2021-10-11 00:23:12,275 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4276bb7f-17ae-4d1c-8867-515de8bbb611/sv-benchmarks/c/forester-heap/dll-token-2.i[22795,22808] [2021-10-11 00:23:12,276 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:23:12,335 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:23:12,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:12 WrapperNode [2021-10-11 00:23:12,335 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:23:12,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:23:12,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:23:12,337 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:23:12,348 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:12" (1/1) ... [2021-10-11 00:23:12,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:12" (1/1) ... [2021-10-11 00:23:12,385 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:12" (1/1) ... [2021-10-11 00:23:12,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:12" (1/1) ... [2021-10-11 00:23:12,417 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:12" (1/1) ... [2021-10-11 00:23:12,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:12" (1/1) ... [2021-10-11 00:23:12,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:12" (1/1) ... [2021-10-11 00:23:12,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:23:12,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:23:12,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:23:12,438 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:23:12,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:12" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4276bb7f-17ae-4d1c-8867-515de8bbb611/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:23:12,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-11 00:23:12,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:23:12,532 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-10-11 00:23:12,533 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-11 00:23:12,534 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-11 00:23:12,534 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-11 00:23:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-11 00:23:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-11 00:23:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-11 00:23:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-11 00:23:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-11 00:23:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-11 00:23:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-11 00:23:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-11 00:23:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-11 00:23:12,540 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-11 00:23:12,540 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-11 00:23:12,540 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-11 00:23:12,540 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-11 00:23:12,540 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-11 00:23:12,541 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-11 00:23:12,541 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-11 00:23:12,541 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-11 00:23:12,541 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-11 00:23:12,541 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-11 00:23:12,542 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-11 00:23:12,542 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-11 00:23:12,542 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-11 00:23:12,542 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-11 00:23:12,543 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-11 00:23:12,543 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-11 00:23:12,543 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-11 00:23:12,543 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-11 00:23:12,544 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-11 00:23:12,544 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-11 00:23:12,545 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-11 00:23:12,545 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-11 00:23:12,545 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-11 00:23:12,545 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-11 00:23:12,546 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-11 00:23:12,546 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-11 00:23:12,546 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-11 00:23:12,547 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-11 00:23:12,547 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-11 00:23:12,547 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-11 00:23:12,548 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-11 00:23:12,548 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-11 00:23:12,548 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-11 00:23:12,548 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-11 00:23:12,549 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-11 00:23:12,549 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-11 00:23:12,549 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-11 00:23:12,549 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-11 00:23:12,549 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-11 00:23:12,550 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-11 00:23:12,550 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-11 00:23:12,550 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-11 00:23:12,550 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-11 00:23:12,550 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-10-11 00:23:12,551 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-11 00:23:12,551 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-11 00:23:12,551 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-11 00:23:12,551 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-11 00:23:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-11 00:23:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-11 00:23:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-11 00:23:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-11 00:23:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-11 00:23:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-11 00:23:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-11 00:23:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-11 00:23:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-11 00:23:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-11 00:23:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-11 00:23:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-11 00:23:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-11 00:23:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-11 00:23:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-11 00:23:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-11 00:23:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-11 00:23:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-11 00:23:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-11 00:23:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-11 00:23:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-11 00:23:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-11 00:23:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-11 00:23:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-11 00:23:12,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-11 00:23:12,557 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-11 00:23:12,557 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-11 00:23:12,557 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-11 00:23:12,557 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-11 00:23:12,558 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-11 00:23:12,558 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-11 00:23:12,558 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-11 00:23:12,558 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-11 00:23:12,558 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-11 00:23:12,559 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-11 00:23:12,559 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-11 00:23:12,559 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-11 00:23:12,559 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-11 00:23:12,559 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-11 00:23:12,560 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-11 00:23:12,560 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-11 00:23:12,560 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-11 00:23:12,560 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-11 00:23:12,560 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-11 00:23:12,560 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-11 00:23:12,561 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-10-11 00:23:12,561 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-10-11 00:23:12,561 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-10-11 00:23:12,561 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-10-11 00:23:12,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:23:12,562 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-11 00:23:12,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-11 00:23:12,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-11 00:23:12,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 00:23:12,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-11 00:23:12,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 00:23:12,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 00:23:12,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-11 00:23:12,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:23:12,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:23:13,241 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:23:13,241 INFO L299 CfgBuilder]: Removed 15 assume(true) statements. [2021-10-11 00:23:13,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:23:13 BoogieIcfgContainer [2021-10-11 00:23:13,243 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:23:13,245 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:23:13,245 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:23:13,253 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:23:13,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:23:11" (1/3) ... [2021-10-11 00:23:13,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb654e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:23:13, skipping insertion in model container [2021-10-11 00:23:13,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:12" (2/3) ... [2021-10-11 00:23:13,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb654e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:23:13, skipping insertion in model container [2021-10-11 00:23:13,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:23:13" (3/3) ... [2021-10-11 00:23:13,258 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-token-2.i [2021-10-11 00:23:13,273 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:23:13,277 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 64 error locations. [2021-10-11 00:23:13,289 INFO L253 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2021-10-11 00:23:13,310 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:23:13,311 INFO L378 AbstractCegarLoop]: Hoare is false [2021-10-11 00:23:13,311 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:23:13,311 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:23:13,311 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:23:13,311 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:23:13,312 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:23:13,312 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:23:13,332 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states. [2021-10-11 00:23:13,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 00:23:13,340 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:13,341 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:13,344 INFO L429 AbstractCegarLoop]: === Iteration 1 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr29ASSERT_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr39ASSERT_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_LEAK, mainErr54ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2021-10-11 00:23:13,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:13,356 INFO L82 PathProgramCache]: Analyzing trace with hash -1881250140, now seen corresponding path program 1 times [2021-10-11 00:23:13,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:13,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553270547] [2021-10-11 00:23:13,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:13,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:13,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:23:13,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:13,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:23:13,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553270547] [2021-10-11 00:23:13,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:13,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:23:13,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680287003] [2021-10-11 00:23:13,683 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:23:13,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:13,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:23:13,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:23:13,707 INFO L87 Difference]: Start difference. First operand 139 states. Second operand 4 states. [2021-10-11 00:23:14,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:14,128 INFO L93 Difference]: Finished difference Result 156 states and 159 transitions. [2021-10-11 00:23:14,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:23:14,130 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-10-11 00:23:14,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:14,144 INFO L225 Difference]: With dead ends: 156 [2021-10-11 00:23:14,144 INFO L226 Difference]: Without dead ends: 153 [2021-10-11 00:23:14,146 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 [2021-10-11 00:23:14,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-10-11 00:23:14,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 133. [2021-10-11 00:23:14,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2021-10-11 00:23:14,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 135 transitions. [2021-10-11 00:23:14,193 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 135 transitions. Word has length 7 [2021-10-11 00:23:14,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:14,193 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 135 transitions. [2021-10-11 00:23:14,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:23:14,194 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 135 transitions. [2021-10-11 00:23:14,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 00:23:14,194 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:14,194 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:14,195 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:23:14,195 INFO L429 AbstractCegarLoop]: === Iteration 2 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr29ASSERT_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr39ASSERT_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_LEAK, mainErr54ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2021-10-11 00:23:14,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:14,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1881250139, now seen corresponding path program 1 times [2021-10-11 00:23:14,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:14,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651084722] [2021-10-11 00:23:14,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:14,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:14,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:23:14,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:14,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:23:14,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651084722] [2021-10-11 00:23:14,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:14,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:23:14,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122243292] [2021-10-11 00:23:14,306 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:23:14,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:14,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:23:14,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:23:14,308 INFO L87 Difference]: Start difference. First operand 133 states and 135 transitions. Second operand 4 states. [2021-10-11 00:23:14,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:14,574 INFO L93 Difference]: Finished difference Result 158 states and 160 transitions. [2021-10-11 00:23:14,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:23:14,575 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-10-11 00:23:14,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:14,583 INFO L225 Difference]: With dead ends: 158 [2021-10-11 00:23:14,583 INFO L226 Difference]: Without dead ends: 158 [2021-10-11 00:23:14,584 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 [2021-10-11 00:23:14,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-10-11 00:23:14,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 130. [2021-10-11 00:23:14,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2021-10-11 00:23:14,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 132 transitions. [2021-10-11 00:23:14,609 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 132 transitions. Word has length 7 [2021-10-11 00:23:14,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:14,609 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 132 transitions. [2021-10-11 00:23:14,609 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:23:14,609 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 132 transitions. [2021-10-11 00:23:14,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 00:23:14,610 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:14,610 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:14,610 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:23:14,610 INFO L429 AbstractCegarLoop]: === Iteration 3 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr29ASSERT_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr39ASSERT_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_LEAK, mainErr54ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2021-10-11 00:23:14,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:14,611 INFO L82 PathProgramCache]: Analyzing trace with hash 850073909, now seen corresponding path program 1 times [2021-10-11 00:23:14,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:14,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056173896] [2021-10-11 00:23:14,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:14,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:14,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:23:14,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:14,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:23:14,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056173896] [2021-10-11 00:23:14,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:14,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:23:14,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768411653] [2021-10-11 00:23:14,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:23:14,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:14,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:23:14,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:23:14,764 INFO L87 Difference]: Start difference. First operand 130 states and 132 transitions. Second operand 5 states. [2021-10-11 00:23:15,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:15,074 INFO L93 Difference]: Finished difference Result 134 states and 137 transitions. [2021-10-11 00:23:15,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:23:15,075 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2021-10-11 00:23:15,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:15,077 INFO L225 Difference]: With dead ends: 134 [2021-10-11 00:23:15,078 INFO L226 Difference]: Without dead ends: 134 [2021-10-11 00:23:15,079 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 [2021-10-11 00:23:15,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-10-11 00:23:15,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 117. [2021-10-11 00:23:15,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2021-10-11 00:23:15,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 121 transitions. [2021-10-11 00:23:15,111 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 121 transitions. Word has length 13 [2021-10-11 00:23:15,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:15,111 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 121 transitions. [2021-10-11 00:23:15,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:23:15,111 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 121 transitions. [2021-10-11 00:23:15,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 00:23:15,112 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:15,112 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:15,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:23:15,113 INFO L429 AbstractCegarLoop]: === Iteration 4 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr29ASSERT_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr39ASSERT_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_LEAK, mainErr54ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2021-10-11 00:23:15,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:15,113 INFO L82 PathProgramCache]: Analyzing trace with hash 850073910, now seen corresponding path program 1 times [2021-10-11 00:23:15,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:15,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497950433] [2021-10-11 00:23:15,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:15,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:15,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:23:15,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:15,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:23:15,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497950433] [2021-10-11 00:23:15,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:15,288 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:23:15,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083773447] [2021-10-11 00:23:15,288 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:23:15,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:15,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:23:15,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:23:15,290 INFO L87 Difference]: Start difference. First operand 117 states and 121 transitions. Second operand 5 states. [2021-10-11 00:23:15,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:15,755 INFO L93 Difference]: Finished difference Result 207 states and 211 transitions. [2021-10-11 00:23:15,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:23:15,755 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2021-10-11 00:23:15,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:15,757 INFO L225 Difference]: With dead ends: 207 [2021-10-11 00:23:15,757 INFO L226 Difference]: Without dead ends: 207 [2021-10-11 00:23:15,757 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 [2021-10-11 00:23:15,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2021-10-11 00:23:15,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 152. [2021-10-11 00:23:15,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2021-10-11 00:23:15,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 167 transitions. [2021-10-11 00:23:15,782 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 167 transitions. Word has length 13 [2021-10-11 00:23:15,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:15,783 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 167 transitions. [2021-10-11 00:23:15,783 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:23:15,783 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 167 transitions. [2021-10-11 00:23:15,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-11 00:23:15,783 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:15,784 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:15,784 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:23:15,784 INFO L429 AbstractCegarLoop]: === Iteration 5 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr29ASSERT_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr39ASSERT_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_LEAK, mainErr54ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2021-10-11 00:23:15,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:15,785 INFO L82 PathProgramCache]: Analyzing trace with hash 877263472, now seen corresponding path program 1 times [2021-10-11 00:23:15,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:15,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505405515] [2021-10-11 00:23:15,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:15,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:15,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:23:15,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:15,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:23:15,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505405515] [2021-10-11 00:23:15,892 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:15,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:23:15,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14170555] [2021-10-11 00:23:15,893 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:23:15,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:15,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:23:15,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:23:15,895 INFO L87 Difference]: Start difference. First operand 152 states and 167 transitions. Second operand 6 states. [2021-10-11 00:23:16,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:16,347 INFO L93 Difference]: Finished difference Result 221 states and 238 transitions. [2021-10-11 00:23:16,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:23:16,348 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2021-10-11 00:23:16,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:16,353 INFO L225 Difference]: With dead ends: 221 [2021-10-11 00:23:16,353 INFO L226 Difference]: Without dead ends: 221 [2021-10-11 00:23:16,354 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 [2021-10-11 00:23:16,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2021-10-11 00:23:16,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 151. [2021-10-11 00:23:16,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2021-10-11 00:23:16,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 165 transitions. [2021-10-11 00:23:16,369 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 165 transitions. Word has length 15 [2021-10-11 00:23:16,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:16,369 INFO L481 AbstractCegarLoop]: Abstraction has 151 states and 165 transitions. [2021-10-11 00:23:16,369 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:23:16,369 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 165 transitions. [2021-10-11 00:23:16,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-11 00:23:16,370 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:16,370 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:16,370 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 00:23:16,372 INFO L429 AbstractCegarLoop]: === Iteration 6 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr29ASSERT_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr39ASSERT_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_LEAK, mainErr54ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2021-10-11 00:23:16,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:16,373 INFO L82 PathProgramCache]: Analyzing trace with hash 877263473, now seen corresponding path program 1 times [2021-10-11 00:23:16,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:16,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860207812] [2021-10-11 00:23:16,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:16,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:16,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:23:16,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:16,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:23:16,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860207812] [2021-10-11 00:23:16,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:16,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:23:16,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774528239] [2021-10-11 00:23:16,512 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:23:16,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:16,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:23:16,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:23:16,514 INFO L87 Difference]: Start difference. First operand 151 states and 165 transitions. Second operand 6 states. [2021-10-11 00:23:17,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:17,032 INFO L93 Difference]: Finished difference Result 247 states and 267 transitions. [2021-10-11 00:23:17,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:23:17,033 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2021-10-11 00:23:17,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:17,038 INFO L225 Difference]: With dead ends: 247 [2021-10-11 00:23:17,038 INFO L226 Difference]: Without dead ends: 247 [2021-10-11 00:23:17,038 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 [2021-10-11 00:23:17,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2021-10-11 00:23:17,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 150. [2021-10-11 00:23:17,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2021-10-11 00:23:17,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 163 transitions. [2021-10-11 00:23:17,044 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 163 transitions. Word has length 15 [2021-10-11 00:23:17,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:17,044 INFO L481 AbstractCegarLoop]: Abstraction has 150 states and 163 transitions. [2021-10-11 00:23:17,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:23:17,045 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 163 transitions. [2021-10-11 00:23:17,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 00:23:17,051 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:17,052 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:17,052 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 00:23:17,052 INFO L429 AbstractCegarLoop]: === Iteration 7 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr29ASSERT_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr39ASSERT_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_LEAK, mainErr54ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2021-10-11 00:23:17,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:17,053 INFO L82 PathProgramCache]: Analyzing trace with hash 1215610170, now seen corresponding path program 1 times [2021-10-11 00:23:17,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:17,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716950662] [2021-10-11 00:23:17,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:17,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:17,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:23:17,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:17,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:23:17,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716950662] [2021-10-11 00:23:17,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:17,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:23:17,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400345270] [2021-10-11 00:23:17,133 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:23:17,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:17,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:23:17,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:23:17,134 INFO L87 Difference]: Start difference. First operand 150 states and 163 transitions. Second operand 6 states. [2021-10-11 00:23:17,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:17,487 INFO L93 Difference]: Finished difference Result 149 states and 161 transitions. [2021-10-11 00:23:17,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:23:17,487 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2021-10-11 00:23:17,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:17,488 INFO L225 Difference]: With dead ends: 149 [2021-10-11 00:23:17,488 INFO L226 Difference]: Without dead ends: 149 [2021-10-11 00:23:17,489 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:23:17,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-10-11 00:23:17,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2021-10-11 00:23:17,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2021-10-11 00:23:17,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 161 transitions. [2021-10-11 00:23:17,494 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 161 transitions. Word has length 17 [2021-10-11 00:23:17,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:17,494 INFO L481 AbstractCegarLoop]: Abstraction has 149 states and 161 transitions. [2021-10-11 00:23:17,494 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:23:17,495 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 161 transitions. [2021-10-11 00:23:17,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 00:23:17,495 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:17,495 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:17,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 00:23:17,496 INFO L429 AbstractCegarLoop]: === Iteration 8 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr29ASSERT_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr39ASSERT_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_LEAK, mainErr54ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2021-10-11 00:23:17,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:17,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1215610169, now seen corresponding path program 1 times [2021-10-11 00:23:17,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:17,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952396230] [2021-10-11 00:23:17,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:17,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:17,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:23:17,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:17,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:23:17,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952396230] [2021-10-11 00:23:17,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:17,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:23:17,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157039103] [2021-10-11 00:23:17,563 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:23:17,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:17,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:23:17,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:23:17,564 INFO L87 Difference]: Start difference. First operand 149 states and 161 transitions. Second operand 6 states. [2021-10-11 00:23:17,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:17,848 INFO L93 Difference]: Finished difference Result 156 states and 163 transitions. [2021-10-11 00:23:17,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:23:17,849 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2021-10-11 00:23:17,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:17,850 INFO L225 Difference]: With dead ends: 156 [2021-10-11 00:23:17,850 INFO L226 Difference]: Without dead ends: 156 [2021-10-11 00:23:17,851 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 [2021-10-11 00:23:17,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-10-11 00:23:17,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 148. [2021-10-11 00:23:17,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2021-10-11 00:23:17,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 159 transitions. [2021-10-11 00:23:17,857 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 159 transitions. Word has length 17 [2021-10-11 00:23:17,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:17,858 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 159 transitions. [2021-10-11 00:23:17,858 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:23:17,858 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 159 transitions. [2021-10-11 00:23:17,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-11 00:23:17,858 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:17,859 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:17,859 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 00:23:17,859 INFO L429 AbstractCegarLoop]: === Iteration 9 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr29ASSERT_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr39ASSERT_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_LEAK, mainErr54ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2021-10-11 00:23:17,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:17,859 INFO L82 PathProgramCache]: Analyzing trace with hash -1326743310, now seen corresponding path program 1 times [2021-10-11 00:23:17,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:17,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568844909] [2021-10-11 00:23:17,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:17,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:18,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:23:18,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:18,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:23:18,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568844909] [2021-10-11 00:23:18,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:18,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-11 00:23:18,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475908905] [2021-10-11 00:23:18,038 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-10-11 00:23:18,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:18,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-11 00:23:18,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-11 00:23:18,039 INFO L87 Difference]: Start difference. First operand 148 states and 159 transitions. Second operand 10 states. [2021-10-11 00:23:18,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:18,513 INFO L93 Difference]: Finished difference Result 152 states and 159 transitions. [2021-10-11 00:23:18,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-11 00:23:18,513 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 19 [2021-10-11 00:23:18,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:18,514 INFO L225 Difference]: With dead ends: 152 [2021-10-11 00:23:18,515 INFO L226 Difference]: Without dead ends: 152 [2021-10-11 00:23:18,515 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2021-10-11 00:23:18,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-10-11 00:23:18,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 147. [2021-10-11 00:23:18,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2021-10-11 00:23:18,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 158 transitions. [2021-10-11 00:23:18,520 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 158 transitions. Word has length 19 [2021-10-11 00:23:18,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:18,520 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 158 transitions. [2021-10-11 00:23:18,520 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-10-11 00:23:18,520 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 158 transitions. [2021-10-11 00:23:18,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-11 00:23:18,521 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:18,521 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:18,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-11 00:23:18,522 INFO L429 AbstractCegarLoop]: === Iteration 10 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr29ASSERT_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr39ASSERT_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_LEAK, mainErr54ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2021-10-11 00:23:18,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:18,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1326743309, now seen corresponding path program 1 times [2021-10-11 00:23:18,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:18,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620226624] [2021-10-11 00:23:18,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:18,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:18,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:23:18,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:18,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:23:18,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620226624] [2021-10-11 00:23:18,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:18,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-11 00:23:18,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308411147] [2021-10-11 00:23:18,695 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-10-11 00:23:18,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:18,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-11 00:23:18,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-10-11 00:23:18,697 INFO L87 Difference]: Start difference. First operand 147 states and 158 transitions. Second operand 11 states. [2021-10-11 00:23:19,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:19,587 INFO L93 Difference]: Finished difference Result 149 states and 156 transitions. [2021-10-11 00:23:19,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-11 00:23:19,588 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 19 [2021-10-11 00:23:19,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:19,589 INFO L225 Difference]: With dead ends: 149 [2021-10-11 00:23:19,589 INFO L226 Difference]: Without dead ends: 149 [2021-10-11 00:23:19,590 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 [2021-10-11 00:23:19,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-10-11 00:23:19,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 125. [2021-10-11 00:23:19,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2021-10-11 00:23:19,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 135 transitions. [2021-10-11 00:23:19,594 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 135 transitions. Word has length 19 [2021-10-11 00:23:19,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:19,595 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 135 transitions. [2021-10-11 00:23:19,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-10-11 00:23:19,595 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 135 transitions. [2021-10-11 00:23:19,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-11 00:23:19,596 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:19,596 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] [2021-10-11 00:23:19,596 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-11 00:23:19,597 INFO L429 AbstractCegarLoop]: === Iteration 11 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr29ASSERT_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr39ASSERT_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_LEAK, mainErr54ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2021-10-11 00:23:19,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:19,597 INFO L82 PathProgramCache]: Analyzing trace with hash -921644515, now seen corresponding path program 1 times [2021-10-11 00:23:19,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:19,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349301350] [2021-10-11 00:23:19,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:19,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:19,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:23:19,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:19,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:23:19,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349301350] [2021-10-11 00:23:19,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:19,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-11 00:23:19,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903484043] [2021-10-11 00:23:19,710 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-10-11 00:23:19,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:19,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-11 00:23:19,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:23:19,711 INFO L87 Difference]: Start difference. First operand 125 states and 135 transitions. Second operand 9 states. [2021-10-11 00:23:20,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:20,170 INFO L93 Difference]: Finished difference Result 128 states and 139 transitions. [2021-10-11 00:23:20,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 00:23:20,170 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2021-10-11 00:23:20,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:20,171 INFO L225 Difference]: With dead ends: 128 [2021-10-11 00:23:20,171 INFO L226 Difference]: Without dead ends: 128 [2021-10-11 00:23:20,172 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2021-10-11 00:23:20,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-10-11 00:23:20,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 124. [2021-10-11 00:23:20,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2021-10-11 00:23:20,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 134 transitions. [2021-10-11 00:23:20,176 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 134 transitions. Word has length 20 [2021-10-11 00:23:20,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:20,177 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 134 transitions. [2021-10-11 00:23:20,177 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-10-11 00:23:20,177 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 134 transitions. [2021-10-11 00:23:20,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-11 00:23:20,178 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:20,178 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] [2021-10-11 00:23:20,178 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-11 00:23:20,178 INFO L429 AbstractCegarLoop]: === Iteration 12 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr29ASSERT_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr39ASSERT_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_LEAK, mainErr54ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2021-10-11 00:23:20,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:20,179 INFO L82 PathProgramCache]: Analyzing trace with hash -921644514, now seen corresponding path program 1 times [2021-10-11 00:23:20,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:20,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875599941] [2021-10-11 00:23:20,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:20,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:20,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:23:20,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:20,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:23:20,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875599941] [2021-10-11 00:23:20,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:20,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-11 00:23:20,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688287969] [2021-10-11 00:23:20,310 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-10-11 00:23:20,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:20,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-11 00:23:20,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:23:20,311 INFO L87 Difference]: Start difference. First operand 124 states and 134 transitions. Second operand 9 states. [2021-10-11 00:23:20,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:20,869 INFO L93 Difference]: Finished difference Result 127 states and 138 transitions. [2021-10-11 00:23:20,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 00:23:20,869 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2021-10-11 00:23:20,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:20,871 INFO L225 Difference]: With dead ends: 127 [2021-10-11 00:23:20,876 INFO L226 Difference]: Without dead ends: 127 [2021-10-11 00:23:20,876 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2021-10-11 00:23:20,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-10-11 00:23:20,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 123. [2021-10-11 00:23:20,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2021-10-11 00:23:20,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 133 transitions. [2021-10-11 00:23:20,880 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 133 transitions. Word has length 20 [2021-10-11 00:23:20,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:20,880 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 133 transitions. [2021-10-11 00:23:20,880 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-10-11 00:23:20,880 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 133 transitions. [2021-10-11 00:23:20,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-11 00:23:20,881 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:20,881 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:20,881 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-11 00:23:20,882 INFO L429 AbstractCegarLoop]: === Iteration 13 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr29ASSERT_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr39ASSERT_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_LEAK, mainErr54ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2021-10-11 00:23:20,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:20,882 INFO L82 PathProgramCache]: Analyzing trace with hash 604966706, now seen corresponding path program 1 times [2021-10-11 00:23:20,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:20,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592003604] [2021-10-11 00:23:20,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:20,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:21,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:23:21,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:21,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:23:21,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592003604] [2021-10-11 00:23:21,019 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:21,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-10-11 00:23:21,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827614160] [2021-10-11 00:23:21,020 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-10-11 00:23:21,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:21,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-11 00:23:21,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-10-11 00:23:21,021 INFO L87 Difference]: Start difference. First operand 123 states and 133 transitions. Second operand 11 states. [2021-10-11 00:23:21,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:21,689 INFO L93 Difference]: Finished difference Result 143 states and 150 transitions. [2021-10-11 00:23:21,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-11 00:23:21,690 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2021-10-11 00:23:21,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:21,691 INFO L225 Difference]: With dead ends: 143 [2021-10-11 00:23:21,691 INFO L226 Difference]: Without dead ends: 143 [2021-10-11 00:23:21,691 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2021-10-11 00:23:21,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-10-11 00:23:21,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 121. [2021-10-11 00:23:21,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2021-10-11 00:23:21,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 131 transitions. [2021-10-11 00:23:21,695 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 131 transitions. Word has length 21 [2021-10-11 00:23:21,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:21,695 INFO L481 AbstractCegarLoop]: Abstraction has 121 states and 131 transitions. [2021-10-11 00:23:21,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-10-11 00:23:21,696 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 131 transitions. [2021-10-11 00:23:21,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-11 00:23:21,697 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:21,697 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] [2021-10-11 00:23:21,697 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-11 00:23:21,698 INFO L429 AbstractCegarLoop]: === Iteration 14 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr29ASSERT_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr39ASSERT_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_LEAK, mainErr54ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2021-10-11 00:23:21,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:21,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1014234749, now seen corresponding path program 1 times [2021-10-11 00:23:21,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:21,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816024373] [2021-10-11 00:23:21,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:21,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:21,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:23:21,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:21,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:23:21,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816024373] [2021-10-11 00:23:21,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:21,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:23:21,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300162904] [2021-10-11 00:23:21,841 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:23:21,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:21,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:23:21,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:23:21,842 INFO L87 Difference]: Start difference. First operand 121 states and 131 transitions. Second operand 5 states. [2021-10-11 00:23:22,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:22,044 INFO L93 Difference]: Finished difference Result 181 states and 186 transitions. [2021-10-11 00:23:22,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:23:22,044 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2021-10-11 00:23:22,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:22,046 INFO L225 Difference]: With dead ends: 181 [2021-10-11 00:23:22,046 INFO L226 Difference]: Without dead ends: 181 [2021-10-11 00:23:22,046 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:23:22,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-10-11 00:23:22,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 119. [2021-10-11 00:23:22,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2021-10-11 00:23:22,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 129 transitions. [2021-10-11 00:23:22,051 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 129 transitions. Word has length 23 [2021-10-11 00:23:22,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:22,051 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 129 transitions. [2021-10-11 00:23:22,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:23:22,052 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 129 transitions. [2021-10-11 00:23:22,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-11 00:23:22,052 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:22,053 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] [2021-10-11 00:23:22,053 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-11 00:23:22,053 INFO L429 AbstractCegarLoop]: === Iteration 15 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr29ASSERT_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr39ASSERT_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_LEAK, mainErr54ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2021-10-11 00:23:22,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:22,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1116209200, now seen corresponding path program 1 times [2021-10-11 00:23:22,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:22,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084013894] [2021-10-11 00:23:22,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:22,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:22,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:23:22,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:22,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:23:22,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084013894] [2021-10-11 00:23:22,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:22,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 00:23:22,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100587858] [2021-10-11 00:23:22,133 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:23:22,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:22,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:23:22,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:23:22,134 INFO L87 Difference]: Start difference. First operand 119 states and 129 transitions. Second operand 6 states. [2021-10-11 00:23:22,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:22,322 INFO L93 Difference]: Finished difference Result 117 states and 126 transitions. [2021-10-11 00:23:22,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:23:22,322 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2021-10-11 00:23:22,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:22,323 INFO L225 Difference]: With dead ends: 117 [2021-10-11 00:23:22,323 INFO L226 Difference]: Without dead ends: 117 [2021-10-11 00:23:22,324 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:23:22,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-10-11 00:23:22,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2021-10-11 00:23:22,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2021-10-11 00:23:22,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 126 transitions. [2021-10-11 00:23:22,328 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 126 transitions. Word has length 28 [2021-10-11 00:23:22,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:22,328 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 126 transitions. [2021-10-11 00:23:22,328 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:23:22,328 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 126 transitions. [2021-10-11 00:23:22,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-11 00:23:22,329 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:22,329 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] [2021-10-11 00:23:22,330 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-11 00:23:22,330 INFO L429 AbstractCegarLoop]: === Iteration 16 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr29ASSERT_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr39ASSERT_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_LEAK, mainErr54ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2021-10-11 00:23:22,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:22,330 INFO L82 PathProgramCache]: Analyzing trace with hash -1116176429, now seen corresponding path program 1 times [2021-10-11 00:23:22,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:22,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908234195] [2021-10-11 00:23:22,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:22,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:22,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:23:22,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:22,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:23:22,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908234195] [2021-10-11 00:23:22,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:22,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-10-11 00:23:22,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033060375] [2021-10-11 00:23:22,677 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-10-11 00:23:22,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:22,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-11 00:23:22,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2021-10-11 00:23:22,678 INFO L87 Difference]: Start difference. First operand 117 states and 126 transitions. Second operand 13 states. [2021-10-11 00:23:23,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:23,287 INFO L93 Difference]: Finished difference Result 219 states and 223 transitions. [2021-10-11 00:23:23,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-11 00:23:23,289 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 28 [2021-10-11 00:23:23,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:23,290 INFO L225 Difference]: With dead ends: 219 [2021-10-11 00:23:23,290 INFO L226 Difference]: Without dead ends: 219 [2021-10-11 00:23:23,291 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-10-11 00:23:23,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-10-11 00:23:23,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 132. [2021-10-11 00:23:23,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2021-10-11 00:23:23,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 142 transitions. [2021-10-11 00:23:23,296 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 142 transitions. Word has length 28 [2021-10-11 00:23:23,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:23,296 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 142 transitions. [2021-10-11 00:23:23,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-10-11 00:23:23,296 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 142 transitions. [2021-10-11 00:23:23,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-11 00:23:23,297 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:23,298 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:23,298 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-11 00:23:23,298 INFO L429 AbstractCegarLoop]: === Iteration 17 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr29ASSERT_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr39ASSERT_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_LEAK, mainErr54ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2021-10-11 00:23:23,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:23,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1347404008, now seen corresponding path program 1 times [2021-10-11 00:23:23,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:23,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090608040] [2021-10-11 00:23:23,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:23,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:23,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:23:23,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:23,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:23:23,485 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090608040] [2021-10-11 00:23:23,485 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:23,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-11 00:23:23,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947708635] [2021-10-11 00:23:23,486 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-10-11 00:23:23,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:23,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-11 00:23:23,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-10-11 00:23:23,487 INFO L87 Difference]: Start difference. First operand 132 states and 142 transitions. Second operand 13 states. [2021-10-11 00:23:24,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:24,144 INFO L93 Difference]: Finished difference Result 185 states and 190 transitions. [2021-10-11 00:23:24,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-11 00:23:24,145 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 31 [2021-10-11 00:23:24,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:24,146 INFO L225 Difference]: With dead ends: 185 [2021-10-11 00:23:24,147 INFO L226 Difference]: Without dead ends: 185 [2021-10-11 00:23:24,151 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2021-10-11 00:23:24,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2021-10-11 00:23:24,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 138. [2021-10-11 00:23:24,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2021-10-11 00:23:24,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 149 transitions. [2021-10-11 00:23:24,158 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 149 transitions. Word has length 31 [2021-10-11 00:23:24,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:24,160 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 149 transitions. [2021-10-11 00:23:24,160 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-10-11 00:23:24,160 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 149 transitions. [2021-10-11 00:23:24,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-11 00:23:24,163 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:24,163 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:24,163 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-11 00:23:24,164 INFO L429 AbstractCegarLoop]: === Iteration 18 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr29ASSERT_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr39ASSERT_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_LEAK, mainErr54ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2021-10-11 00:23:24,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:24,164 INFO L82 PathProgramCache]: Analyzing trace with hash -1347404007, now seen corresponding path program 1 times [2021-10-11 00:23:24,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:24,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015204952] [2021-10-11 00:23:24,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:24,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:24,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:23:24,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:24,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:23:24,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015204952] [2021-10-11 00:23:24,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:24,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-11 00:23:24,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719417025] [2021-10-11 00:23:24,456 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-10-11 00:23:24,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:24,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-11 00:23:24,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-10-11 00:23:24,457 INFO L87 Difference]: Start difference. First operand 138 states and 149 transitions. Second operand 13 states. [2021-10-11 00:23:25,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:25,183 INFO L93 Difference]: Finished difference Result 217 states and 221 transitions. [2021-10-11 00:23:25,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-11 00:23:25,184 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 31 [2021-10-11 00:23:25,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:25,185 INFO L225 Difference]: With dead ends: 217 [2021-10-11 00:23:25,185 INFO L226 Difference]: Without dead ends: 217 [2021-10-11 00:23:25,186 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2021-10-11 00:23:25,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2021-10-11 00:23:25,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 138. [2021-10-11 00:23:25,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2021-10-11 00:23:25,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 148 transitions. [2021-10-11 00:23:25,190 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 148 transitions. Word has length 31 [2021-10-11 00:23:25,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:25,191 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 148 transitions. [2021-10-11 00:23:25,191 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-10-11 00:23:25,191 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 148 transitions. [2021-10-11 00:23:25,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-11 00:23:25,192 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:25,192 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:25,192 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-11 00:23:25,193 INFO L429 AbstractCegarLoop]: === Iteration 19 === [mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr29ASSERT_VIOLATIONMEMORY_LEAK, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr44ASSERT_VIOLATIONMEMORY_LEAK, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr39ASSERT_VIOLATIONMEMORY_LEAK, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr63ENSURES_VIOLATIONMEMORY_LEAK, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr37REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr16ASSERT_VIOLATIONMEMORY_LEAK, mainErr54ASSERT_VIOLATIONMEMORY_LEAK, mainErr33REQUIRES_VIOLATION]=== [2021-10-11 00:23:25,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:25,193 INFO L82 PathProgramCache]: Analyzing trace with hash -2070090856, now seen corresponding path program 1 times [2021-10-11 00:23:25,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:25,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812903101] [2021-10-11 00:23:25,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:25,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:23:25,216 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:23:25,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:23:25,236 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:23:25,266 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:23:25,266 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:23:25,267 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-11 00:23:25,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:23:25 BoogieIcfgContainer [2021-10-11 00:23:25,309 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:23:25,309 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:23:25,309 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:23:25,310 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:23:25,310 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:23:13" (3/4) ... [2021-10-11 00:23:25,312 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 00:23:25,354 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4276bb7f-17ae-4d1c-8867-515de8bbb611/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:23:25,354 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:23:25,359 INFO L168 Benchmark]: Toolchain (without parser) took 13516.09 ms. Allocated memory was 100.7 MB in the beginning and 249.6 MB in the end (delta: 148.9 MB). Free memory was 58.6 MB in the beginning and 149.5 MB in the end (delta: -90.9 MB). Peak memory consumption was 58.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:25,360 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 100.7 MB. Free memory was 76.8 MB in the beginning and 76.7 MB in the end (delta: 52.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:23:25,360 INFO L168 Benchmark]: CACSL2BoogieTranslator took 486.75 ms. Allocated memory is still 100.7 MB. Free memory was 58.4 MB in the beginning and 63.0 MB in the end (delta: -4.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:25,362 INFO L168 Benchmark]: Boogie Preprocessor took 100.60 ms. Allocated memory is still 100.7 MB. Free memory was 63.0 MB in the beginning and 60.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:25,363 INFO L168 Benchmark]: RCFGBuilder took 805.44 ms. Allocated memory was 100.7 MB in the beginning and 134.2 MB in the end (delta: 33.6 MB). Free memory was 60.0 MB in the beginning and 76.4 MB in the end (delta: -16.4 MB). Peak memory consumption was 32.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:25,364 INFO L168 Benchmark]: TraceAbstraction took 12063.98 ms. Allocated memory was 134.2 MB in the beginning and 249.6 MB in the end (delta: 115.3 MB). Free memory was 76.4 MB in the beginning and 151.6 MB in the end (delta: -75.3 MB). Peak memory consumption was 40.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:25,366 INFO L168 Benchmark]: Witness Printer took 48.00 ms. Allocated memory is still 249.6 MB. Free memory was 151.6 MB in the beginning and 149.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:25,368 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 100.7 MB. Free memory was 76.8 MB in the beginning and 76.7 MB in the end (delta: 52.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 486.75 ms. Allocated memory is still 100.7 MB. Free memory was 58.4 MB in the beginning and 63.0 MB in the end (delta: -4.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 100.60 ms. Allocated memory is still 100.7 MB. Free memory was 63.0 MB in the beginning and 60.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 805.44 ms. Allocated memory was 100.7 MB in the beginning and 134.2 MB in the end (delta: 33.6 MB). Free memory was 60.0 MB in the beginning and 76.4 MB in the end (delta: -16.4 MB). Peak memory consumption was 32.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 12063.98 ms. Allocated memory was 134.2 MB in the beginning and 249.6 MB in the end (delta: 115.3 MB). Free memory was 76.4 MB in the beginning and 151.6 MB in the end (delta: -75.3 MB). Peak memory consumption was 40.6 MB. Max. memory is 16.1 GB. * Witness Printer took 48.00 ms. Allocated memory is still 249.6 MB. Free memory was 151.6 MB in the beginning and 149.5 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: 1037]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L1004] SLL* head = malloc(sizeof(SLL)); VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1005] head->next = ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1006] head->prev = ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1007] head->data = 0 VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1009] SLL* x = head; VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1012] COND FALSE !(__VERIFIER_nondet_int()) [L1021] x->data = 1 VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1022] x->next = malloc(sizeof(SLL)) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-1:0}] [L1023] EXPR x->next VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-1:0}, x->next={-2:0}] [L1023] x->next->prev = x VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-1:0}, x->next={-2:0}] [L1024] EXPR x->next VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-1:0}, x->next={-2:0}] [L1024] x->next->data = 2 VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-1:0}, x->next={-2:0}] [L1026] x = head VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-1:0}] [L1028] COND FALSE !(!(((void*)0) != x)) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-1:0}] [L1030] EXPR x->data VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-1:0}, x->data=1] [L1030] COND FALSE !(1 != x->data) [L1035] EXPR x->data VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-1:0}, x->data=1] [L1035] COND FALSE !(!(1 == x->data)) [L1036] EXPR x->next VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-1:0}, x->next={-2:0}] [L1036] x = x->next [L1037] EXPR x->data VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-2:0}, x->data=2] [L1037] COND TRUE !(2 != x->data) [L1037] reach_error() VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 142 locations, 64 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.9s, OverallIterations: 19, TraceHistogramMax: 1, AutomataDifference: 8.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1363 SDtfs, 2673 SDslu, 3238 SDs, 0 SdLazy, 6886 SolverSat, 363 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 231 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 185 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=152occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 18 MinimizatonAttempts, 629 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 377 NumberOfCodeBlocks, 377 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 326 ConstructedInterpolants, 0 QuantifiedInterpolants, 49706 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 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...