./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.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_76a2dfed-16f5-40c4-b434-505925a0cc82/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76a2dfed-16f5-40c4-b434-505925a0cc82/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_76a2dfed-16f5-40c4-b434-505925a0cc82/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76a2dfed-16f5-40c4-b434-505925a0cc82/bin/uautomizer-Z5i5R5N3CC/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76a2dfed-16f5-40c4-b434-505925a0cc82/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_76a2dfed-16f5-40c4-b434-505925a0cc82/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 462c34e9f51057faedad8f148a3437a4550c80b7 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:23:34,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:23:34,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:23:34,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:23:34,377 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:23:34,383 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:23:34,387 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:23:34,392 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:23:34,395 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:23:34,401 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:23:34,403 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:23:34,404 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:23:34,405 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:23:34,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:23:34,410 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:23:34,413 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:23:34,415 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:23:34,419 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:23:34,422 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:23:34,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:23:34,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:23:34,436 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:23:34,439 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:23:34,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:23:34,449 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:23:34,450 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:23:34,451 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:23:34,452 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:23:34,452 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:23:34,454 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:23:34,454 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:23:34,455 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:23:34,456 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:23:34,457 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:23:34,459 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:23:34,459 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:23:34,460 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:23:34,460 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:23:34,461 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:23:34,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:23:34,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:23:34,464 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76a2dfed-16f5-40c4-b434-505925a0cc82/bin/uautomizer-Z5i5R5N3CC/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2021-10-11 00:23:34,505 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:23:34,505 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:23:34,507 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:23:34,508 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:23:34,508 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:23:34,508 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:23:34,508 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:23:34,509 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:23:34,509 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:23:34,512 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:23:34,514 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:23:34,514 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-11 00:23:34,514 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-11 00:23:34,515 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:23:34,515 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 00:23:34,515 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:23:34,515 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:23:34,516 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:23:34,516 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:23:34,516 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:23:34,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:23:34,517 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:23:34,517 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:23:34,517 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:23:34,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:23:34,518 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:23:34,518 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_76a2dfed-16f5-40c4-b434-505925a0cc82/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76a2dfed-16f5-40c4-b434-505925a0cc82/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 462c34e9f51057faedad8f148a3437a4550c80b7 [2021-10-11 00:23:34,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:23:34,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:23:34,925 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:23:34,927 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:23:34,928 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:23:34,929 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76a2dfed-16f5-40c4-b434-505925a0cc82/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i [2021-10-11 00:23:35,013 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76a2dfed-16f5-40c4-b434-505925a0cc82/bin/uautomizer-Z5i5R5N3CC/data/364b024b5/f524dcf94267482594c2fe57571cd9ff/FLAGe69270471 [2021-10-11 00:23:35,760 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:23:35,761 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76a2dfed-16f5-40c4-b434-505925a0cc82/sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i [2021-10-11 00:23:35,776 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76a2dfed-16f5-40c4-b434-505925a0cc82/bin/uautomizer-Z5i5R5N3CC/data/364b024b5/f524dcf94267482594c2fe57571cd9ff/FLAGe69270471 [2021-10-11 00:23:35,944 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76a2dfed-16f5-40c4-b434-505925a0cc82/bin/uautomizer-Z5i5R5N3CC/data/364b024b5/f524dcf94267482594c2fe57571cd9ff [2021-10-11 00:23:35,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:23:35,954 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-11 00:23:35,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:23:35,960 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:23:35,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:23:35,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:23:35" (1/1) ... [2021-10-11 00:23:35,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41b7faa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:35, skipping insertion in model container [2021-10-11 00:23:35,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:23:35" (1/1) ... [2021-10-11 00:23:35,977 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:23:36,035 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:23:36,429 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_76a2dfed-16f5-40c4-b434-505925a0cc82/sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i[22793,22806] [2021-10-11 00:23:36,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:23:36,449 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:23:36,489 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_76a2dfed-16f5-40c4-b434-505925a0cc82/sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i[22793,22806] [2021-10-11 00:23:36,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:23:36,541 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:23:36,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:36 WrapperNode [2021-10-11 00:23:36,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:23:36,544 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:23:36,544 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:23:36,544 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:23:36,556 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:36" (1/1) ... [2021-10-11 00:23:36,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:36" (1/1) ... [2021-10-11 00:23:36,594 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:36" (1/1) ... [2021-10-11 00:23:36,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:36" (1/1) ... [2021-10-11 00:23:36,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:36" (1/1) ... [2021-10-11 00:23:36,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:36" (1/1) ... [2021-10-11 00:23:36,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:36" (1/1) ... [2021-10-11 00:23:36,661 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:23:36,666 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:23:36,666 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:23:36,667 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:23:36,668 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:36" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76a2dfed-16f5-40c4-b434-505925a0cc82/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 00:23:36,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-11 00:23:36,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:23:36,751 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-10-11 00:23:36,751 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-11 00:23:36,752 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-11 00:23:36,752 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-11 00:23:36,753 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-11 00:23:36,753 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-11 00:23:36,753 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-11 00:23:36,753 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-11 00:23:36,755 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-11 00:23:36,755 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-11 00:23:36,755 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-11 00:23:36,755 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-11 00:23:36,756 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-11 00:23:36,756 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-11 00:23:36,757 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-11 00:23:36,757 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-11 00:23:36,757 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-11 00:23:36,758 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-11 00:23:36,758 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-11 00:23:36,758 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-11 00:23:36,758 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-11 00:23:36,758 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-11 00:23:36,758 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-11 00:23:36,759 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-11 00:23:36,759 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-11 00:23:36,759 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-11 00:23:36,759 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-11 00:23:36,759 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-11 00:23:36,760 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-11 00:23:36,760 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-11 00:23:36,760 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-11 00:23:36,760 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-11 00:23:36,760 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-11 00:23:36,761 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-11 00:23:36,761 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-11 00:23:36,761 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-11 00:23:36,761 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-11 00:23:36,761 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-11 00:23:36,761 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-11 00:23:36,762 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-11 00:23:36,762 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-11 00:23:36,762 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-11 00:23:36,762 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-11 00:23:36,762 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-11 00:23:36,763 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-11 00:23:36,763 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-11 00:23:36,763 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-11 00:23:36,763 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-11 00:23:36,763 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-11 00:23:36,764 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-11 00:23:36,764 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-11 00:23:36,764 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-11 00:23:36,765 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-11 00:23:36,765 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-11 00:23:36,766 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-11 00:23:36,766 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-11 00:23:36,767 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-10-11 00:23:36,767 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-11 00:23:36,767 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-11 00:23:36,767 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-11 00:23:36,768 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-11 00:23:36,768 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-11 00:23:36,768 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-11 00:23:36,768 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-11 00:23:36,768 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-11 00:23:36,769 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-11 00:23:36,769 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-11 00:23:36,769 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-11 00:23:36,770 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-11 00:23:36,770 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-11 00:23:36,772 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-11 00:23:36,772 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-11 00:23:36,773 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-11 00:23:36,773 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-11 00:23:36,773 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-11 00:23:36,774 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-11 00:23:36,774 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-11 00:23:36,774 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-11 00:23:36,775 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-11 00:23:36,775 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-11 00:23:36,776 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-11 00:23:36,776 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-11 00:23:36,776 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-11 00:23:36,776 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-11 00:23:36,776 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-11 00:23:36,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-11 00:23:36,777 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-11 00:23:36,777 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-11 00:23:36,777 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-11 00:23:36,777 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-11 00:23:36,777 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-11 00:23:36,778 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-11 00:23:36,778 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-11 00:23:36,778 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-11 00:23:36,778 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-11 00:23:36,778 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-11 00:23:36,779 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-11 00:23:36,779 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-11 00:23:36,779 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-11 00:23:36,779 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-11 00:23:36,779 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-11 00:23:36,779 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-11 00:23:36,780 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-11 00:23:36,780 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-11 00:23:36,780 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-11 00:23:36,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-11 00:23:36,780 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-10-11 00:23:36,781 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-10-11 00:23:36,781 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-10-11 00:23:36,781 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-10-11 00:23:36,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:23:36,782 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-11 00:23:36,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-11 00:23:36,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-11 00:23:36,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 00:23:36,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-11 00:23:36,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 00:23:36,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 00:23:36,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-11 00:23:36,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:23:36,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:23:37,691 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:23:37,692 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-11 00:23:37,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:23:37 BoogieIcfgContainer [2021-10-11 00:23:37,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:23:37,699 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:23:37,699 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:23:37,704 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:23:37,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:23:35" (1/3) ... [2021-10-11 00:23:37,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c6a6bcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:23:37, skipping insertion in model container [2021-10-11 00:23:37,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:36" (2/3) ... [2021-10-11 00:23:37,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c6a6bcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:23:37, skipping insertion in model container [2021-10-11 00:23:37,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:23:37" (3/3) ... [2021-10-11 00:23:37,714 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-simple-white-blue-1.i [2021-10-11 00:23:37,731 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:23:37,736 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 61 error locations. [2021-10-11 00:23:37,749 INFO L253 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2021-10-11 00:23:37,785 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:23:37,786 INFO L378 AbstractCegarLoop]: Hoare is false [2021-10-11 00:23:37,786 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:23:37,786 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:23:37,786 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:23:37,794 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:23:37,794 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:23:37,794 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:23:37,828 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states. [2021-10-11 00:23:37,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 00:23:37,847 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:37,848 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:37,848 INFO L429 AbstractCegarLoop]: === Iteration 1 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr60ENSURES_VIOLATIONMEMORY_LEAK, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2021-10-11 00:23:37,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:37,857 INFO L82 PathProgramCache]: Analyzing trace with hash 527248640, now seen corresponding path program 1 times [2021-10-11 00:23:37,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:37,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463384331] [2021-10-11 00:23:37,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:38,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:38,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:23:38,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:38,216 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 00:23:38,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463384331] [2021-10-11 00:23:38,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:38,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:23:38,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799110235] [2021-10-11 00:23:38,224 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:23:38,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:38,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:23:38,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:23:38,244 INFO L87 Difference]: Start difference. First operand 130 states. Second operand 4 states. [2021-10-11 00:23:38,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:38,727 INFO L93 Difference]: Finished difference Result 156 states and 166 transitions. [2021-10-11 00:23:38,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:23:38,730 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-10-11 00:23:38,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:38,742 INFO L225 Difference]: With dead ends: 156 [2021-10-11 00:23:38,742 INFO L226 Difference]: Without dead ends: 152 [2021-10-11 00:23:38,744 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 00:23:38,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-10-11 00:23:38,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 123. [2021-10-11 00:23:38,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2021-10-11 00:23:38,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 130 transitions. [2021-10-11 00:23:38,794 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 130 transitions. Word has length 7 [2021-10-11 00:23:38,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:38,794 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 130 transitions. [2021-10-11 00:23:38,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:23:38,794 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 130 transitions. [2021-10-11 00:23:38,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 00:23:38,795 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:38,795 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:38,795 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:23:38,796 INFO L429 AbstractCegarLoop]: === Iteration 2 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr60ENSURES_VIOLATIONMEMORY_LEAK, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2021-10-11 00:23:38,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:38,797 INFO L82 PathProgramCache]: Analyzing trace with hash 527248641, now seen corresponding path program 1 times [2021-10-11 00:23:38,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:38,797 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953324408] [2021-10-11 00:23:38,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:38,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:38,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:23:38,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:38,908 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 00:23:38,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953324408] [2021-10-11 00:23:38,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:38,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:23:38,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993529683] [2021-10-11 00:23:38,911 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:23:38,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:38,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:23:38,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:23:38,920 INFO L87 Difference]: Start difference. First operand 123 states and 130 transitions. Second operand 4 states. [2021-10-11 00:23:39,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:39,311 INFO L93 Difference]: Finished difference Result 149 states and 158 transitions. [2021-10-11 00:23:39,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:23:39,312 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-10-11 00:23:39,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:39,318 INFO L225 Difference]: With dead ends: 149 [2021-10-11 00:23:39,318 INFO L226 Difference]: Without dead ends: 149 [2021-10-11 00:23:39,318 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 00:23:39,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-10-11 00:23:39,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 120. [2021-10-11 00:23:39,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2021-10-11 00:23:39,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 127 transitions. [2021-10-11 00:23:39,346 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 127 transitions. Word has length 7 [2021-10-11 00:23:39,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:39,347 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 127 transitions. [2021-10-11 00:23:39,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:23:39,347 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 127 transitions. [2021-10-11 00:23:39,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 00:23:39,347 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:39,348 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:39,348 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:23:39,348 INFO L429 AbstractCegarLoop]: === Iteration 3 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr60ENSURES_VIOLATIONMEMORY_LEAK, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2021-10-11 00:23:39,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:39,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1951050410, now seen corresponding path program 1 times [2021-10-11 00:23:39,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:39,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787200124] [2021-10-11 00:23:39,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:39,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:39,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:23:39,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:39,614 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 00:23:39,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787200124] [2021-10-11 00:23:39,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:39,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 00:23:39,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928163166] [2021-10-11 00:23:39,616 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 00:23:39,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:39,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 00:23:39,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:23:39,617 INFO L87 Difference]: Start difference. First operand 120 states and 127 transitions. Second operand 7 states. [2021-10-11 00:23:40,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:40,220 INFO L93 Difference]: Finished difference Result 173 states and 187 transitions. [2021-10-11 00:23:40,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:23:40,221 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2021-10-11 00:23:40,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:40,223 INFO L225 Difference]: With dead ends: 173 [2021-10-11 00:23:40,223 INFO L226 Difference]: Without dead ends: 173 [2021-10-11 00:23:40,224 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-11 00:23:40,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-10-11 00:23:40,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 148. [2021-10-11 00:23:40,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2021-10-11 00:23:40,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 175 transitions. [2021-10-11 00:23:40,245 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 175 transitions. Word has length 13 [2021-10-11 00:23:40,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:40,245 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 175 transitions. [2021-10-11 00:23:40,245 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 00:23:40,245 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 175 transitions. [2021-10-11 00:23:40,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-11 00:23:40,246 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:40,246 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:40,246 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:23:40,247 INFO L429 AbstractCegarLoop]: === Iteration 4 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr60ENSURES_VIOLATIONMEMORY_LEAK, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2021-10-11 00:23:40,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:40,247 INFO L82 PathProgramCache]: Analyzing trace with hash -1941265204, now seen corresponding path program 1 times [2021-10-11 00:23:40,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:40,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865867512] [2021-10-11 00:23:40,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:40,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:40,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:23:40,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:40,405 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 00:23:40,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865867512] [2021-10-11 00:23:40,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:40,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:23:40,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631976041] [2021-10-11 00:23:40,408 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:23:40,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:40,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:23:40,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:23:40,409 INFO L87 Difference]: Start difference. First operand 148 states and 175 transitions. Second operand 6 states. [2021-10-11 00:23:41,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:41,051 INFO L93 Difference]: Finished difference Result 256 states and 305 transitions. [2021-10-11 00:23:41,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:23:41,052 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2021-10-11 00:23:41,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:41,054 INFO L225 Difference]: With dead ends: 256 [2021-10-11 00:23:41,054 INFO L226 Difference]: Without dead ends: 256 [2021-10-11 00:23:41,055 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 00:23:41,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-10-11 00:23:41,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 147. [2021-10-11 00:23:41,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2021-10-11 00:23:41,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 173 transitions. [2021-10-11 00:23:41,063 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 173 transitions. Word has length 15 [2021-10-11 00:23:41,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:41,064 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 173 transitions. [2021-10-11 00:23:41,064 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:23:41,064 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 173 transitions. [2021-10-11 00:23:41,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-11 00:23:41,064 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:41,065 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:41,065 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:23:41,065 INFO L429 AbstractCegarLoop]: === Iteration 5 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr60ENSURES_VIOLATIONMEMORY_LEAK, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2021-10-11 00:23:41,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:41,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1941265203, now seen corresponding path program 1 times [2021-10-11 00:23:41,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:41,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926482238] [2021-10-11 00:23:41,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:41,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:41,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:23:41,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:41,182 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 00:23:41,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926482238] [2021-10-11 00:23:41,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:41,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:23:41,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072842030] [2021-10-11 00:23:41,184 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:23:41,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:41,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:23:41,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:23:41,186 INFO L87 Difference]: Start difference. First operand 147 states and 173 transitions. Second operand 6 states. [2021-10-11 00:23:41,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:41,895 INFO L93 Difference]: Finished difference Result 255 states and 303 transitions. [2021-10-11 00:23:41,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:23:41,896 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2021-10-11 00:23:41,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:41,898 INFO L225 Difference]: With dead ends: 255 [2021-10-11 00:23:41,899 INFO L226 Difference]: Without dead ends: 255 [2021-10-11 00:23:41,899 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 00:23:41,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2021-10-11 00:23:41,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 146. [2021-10-11 00:23:41,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2021-10-11 00:23:41,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 171 transitions. [2021-10-11 00:23:41,907 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 171 transitions. Word has length 15 [2021-10-11 00:23:41,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:41,908 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 171 transitions. [2021-10-11 00:23:41,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:23:41,908 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 171 transitions. [2021-10-11 00:23:41,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-11 00:23:41,909 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:41,909 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 00:23:41,909 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 00:23:41,910 INFO L429 AbstractCegarLoop]: === Iteration 6 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr60ENSURES_VIOLATIONMEMORY_LEAK, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2021-10-11 00:23:41,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:41,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1771543886, now seen corresponding path program 1 times [2021-10-11 00:23:41,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:41,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313798266] [2021-10-11 00:23:41,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:41,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:42,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:23:42,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:42,074 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 00:23:42,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313798266] [2021-10-11 00:23:42,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:42,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-11 00:23:42,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264159058] [2021-10-11 00:23:42,076 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-10-11 00:23:42,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:42,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-11 00:23:42,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-11 00:23:42,077 INFO L87 Difference]: Start difference. First operand 146 states and 171 transitions. Second operand 10 states. [2021-10-11 00:23:42,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:42,758 INFO L93 Difference]: Finished difference Result 146 states and 168 transitions. [2021-10-11 00:23:42,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-11 00:23:42,759 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 19 [2021-10-11 00:23:42,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:42,760 INFO L225 Difference]: With dead ends: 146 [2021-10-11 00:23:42,761 INFO L226 Difference]: Without dead ends: 146 [2021-10-11 00:23:42,764 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2021-10-11 00:23:42,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-10-11 00:23:42,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 139. [2021-10-11 00:23:42,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2021-10-11 00:23:42,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 166 transitions. [2021-10-11 00:23:42,773 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 166 transitions. Word has length 19 [2021-10-11 00:23:42,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:42,773 INFO L481 AbstractCegarLoop]: Abstraction has 139 states and 166 transitions. [2021-10-11 00:23:42,773 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-10-11 00:23:42,773 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 166 transitions. [2021-10-11 00:23:42,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-11 00:23:42,775 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:42,775 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 00:23:42,775 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 00:23:42,776 INFO L429 AbstractCegarLoop]: === Iteration 7 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr60ENSURES_VIOLATIONMEMORY_LEAK, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2021-10-11 00:23:42,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:42,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1771543887, now seen corresponding path program 1 times [2021-10-11 00:23:42,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:42,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523628408] [2021-10-11 00:23:42,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:42,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:42,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:23:42,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:42,996 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 00:23:42,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523628408] [2021-10-11 00:23:42,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:42,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-11 00:23:42,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398323545] [2021-10-11 00:23:42,997 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-10-11 00:23:42,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:42,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-11 00:23:42,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-10-11 00:23:42,999 INFO L87 Difference]: Start difference. First operand 139 states and 166 transitions. Second operand 11 states. [2021-10-11 00:23:43,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:43,931 INFO L93 Difference]: Finished difference Result 144 states and 167 transitions. [2021-10-11 00:23:43,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-11 00:23:43,931 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 19 [2021-10-11 00:23:43,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:43,932 INFO L225 Difference]: With dead ends: 144 [2021-10-11 00:23:43,933 INFO L226 Difference]: Without dead ends: 144 [2021-10-11 00:23:43,933 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2021-10-11 00:23:43,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-10-11 00:23:43,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 127. [2021-10-11 00:23:43,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2021-10-11 00:23:43,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 153 transitions. [2021-10-11 00:23:43,938 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 153 transitions. Word has length 19 [2021-10-11 00:23:43,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:43,938 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 153 transitions. [2021-10-11 00:23:43,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-10-11 00:23:43,938 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 153 transitions. [2021-10-11 00:23:43,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-11 00:23:43,939 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:43,939 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 00:23:43,940 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 00:23:43,940 INFO L429 AbstractCegarLoop]: === Iteration 8 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr60ENSURES_VIOLATIONMEMORY_LEAK, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2021-10-11 00:23:43,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:43,940 INFO L82 PathProgramCache]: Analyzing trace with hash 1929543356, now seen corresponding path program 1 times [2021-10-11 00:23:43,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:43,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599320037] [2021-10-11 00:23:43,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:43,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:44,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:23:44,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:44,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:23:44,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599320037] [2021-10-11 00:23:44,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:44,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 00:23:44,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790373066] [2021-10-11 00:23:44,033 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:23:44,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:44,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:23:44,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:23:44,034 INFO L87 Difference]: Start difference. First operand 127 states and 153 transitions. Second operand 6 states. [2021-10-11 00:23:44,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:44,300 INFO L93 Difference]: Finished difference Result 138 states and 166 transitions. [2021-10-11 00:23:44,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:23:44,300 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2021-10-11 00:23:44,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:44,302 INFO L225 Difference]: With dead ends: 138 [2021-10-11 00:23:44,302 INFO L226 Difference]: Without dead ends: 138 [2021-10-11 00:23:44,302 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 2 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 00:23:44,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2021-10-11 00:23:44,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 133. [2021-10-11 00:23:44,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2021-10-11 00:23:44,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 161 transitions. [2021-10-11 00:23:44,308 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 161 transitions. Word has length 20 [2021-10-11 00:23:44,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:44,309 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 161 transitions. [2021-10-11 00:23:44,309 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:23:44,309 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 161 transitions. [2021-10-11 00:23:44,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-11 00:23:44,310 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:44,310 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 00:23:44,310 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 00:23:44,311 INFO L429 AbstractCegarLoop]: === Iteration 9 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr60ENSURES_VIOLATIONMEMORY_LEAK, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2021-10-11 00:23:44,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:44,311 INFO L82 PathProgramCache]: Analyzing trace with hash -607776476, now seen corresponding path program 1 times [2021-10-11 00:23:44,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:44,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773390024] [2021-10-11 00:23:44,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:44,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:44,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:23:44,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:44,393 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 00:23:44,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773390024] [2021-10-11 00:23:44,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:44,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:23:44,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412824398] [2021-10-11 00:23:44,395 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:23:44,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:44,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:23:44,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:23:44,396 INFO L87 Difference]: Start difference. First operand 133 states and 161 transitions. Second operand 5 states. [2021-10-11 00:23:44,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:44,749 INFO L93 Difference]: Finished difference Result 156 states and 180 transitions. [2021-10-11 00:23:44,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:23:44,750 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2021-10-11 00:23:44,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:44,752 INFO L225 Difference]: With dead ends: 156 [2021-10-11 00:23:44,752 INFO L226 Difference]: Without dead ends: 156 [2021-10-11 00:23:44,752 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 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 00:23:44,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-10-11 00:23:44,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 117. [2021-10-11 00:23:44,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2021-10-11 00:23:44,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 131 transitions. [2021-10-11 00:23:44,764 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 131 transitions. Word has length 20 [2021-10-11 00:23:44,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:44,766 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 131 transitions. [2021-10-11 00:23:44,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:23:44,767 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 131 transitions. [2021-10-11 00:23:44,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 00:23:44,773 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:44,774 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] [2021-10-11 00:23:44,774 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-11 00:23:44,774 INFO L429 AbstractCegarLoop]: === Iteration 10 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr60ENSURES_VIOLATIONMEMORY_LEAK, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2021-10-11 00:23:44,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:44,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1623788208, now seen corresponding path program 1 times [2021-10-11 00:23:44,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:44,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367292362] [2021-10-11 00:23:44,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:44,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:44,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:23:44,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:44,889 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 00:23:44,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367292362] [2021-10-11 00:23:44,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:44,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 00:23:44,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048850828] [2021-10-11 00:23:44,892 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 00:23:44,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:44,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 00:23:44,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:23:44,893 INFO L87 Difference]: Start difference. First operand 117 states and 131 transitions. Second operand 7 states. [2021-10-11 00:23:45,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:45,340 INFO L93 Difference]: Finished difference Result 153 states and 170 transitions. [2021-10-11 00:23:45,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 00:23:45,341 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2021-10-11 00:23:45,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:45,343 INFO L225 Difference]: With dead ends: 153 [2021-10-11 00:23:45,343 INFO L226 Difference]: Without dead ends: 153 [2021-10-11 00:23:45,344 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-10-11 00:23:45,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-10-11 00:23:45,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 116. [2021-10-11 00:23:45,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2021-10-11 00:23:45,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 130 transitions. [2021-10-11 00:23:45,353 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 130 transitions. Word has length 22 [2021-10-11 00:23:45,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:45,353 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 130 transitions. [2021-10-11 00:23:45,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 00:23:45,353 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 130 transitions. [2021-10-11 00:23:45,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 00:23:45,356 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:45,356 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] [2021-10-11 00:23:45,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-11 00:23:45,357 INFO L429 AbstractCegarLoop]: === Iteration 11 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr60ENSURES_VIOLATIONMEMORY_LEAK, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2021-10-11 00:23:45,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:45,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1623788209, now seen corresponding path program 1 times [2021-10-11 00:23:45,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:45,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132615012] [2021-10-11 00:23:45,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:45,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:45,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:23:45,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:45,492 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 00:23:45,492 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132615012] [2021-10-11 00:23:45,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:45,493 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 00:23:45,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863797716] [2021-10-11 00:23:45,493 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 00:23:45,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:45,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 00:23:45,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:23:45,495 INFO L87 Difference]: Start difference. First operand 116 states and 130 transitions. Second operand 7 states. [2021-10-11 00:23:46,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:46,024 INFO L93 Difference]: Finished difference Result 159 states and 178 transitions. [2021-10-11 00:23:46,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 00:23:46,030 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2021-10-11 00:23:46,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:46,036 INFO L225 Difference]: With dead ends: 159 [2021-10-11 00:23:46,036 INFO L226 Difference]: Without dead ends: 159 [2021-10-11 00:23:46,037 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-10-11 00:23:46,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-10-11 00:23:46,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 113. [2021-10-11 00:23:46,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2021-10-11 00:23:46,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 127 transitions. [2021-10-11 00:23:46,044 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 127 transitions. Word has length 22 [2021-10-11 00:23:46,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:46,045 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 127 transitions. [2021-10-11 00:23:46,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 00:23:46,045 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 127 transitions. [2021-10-11 00:23:46,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-11 00:23:46,048 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:46,048 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] [2021-10-11 00:23:46,049 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-11 00:23:46,049 INFO L429 AbstractCegarLoop]: === Iteration 12 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr60ENSURES_VIOLATIONMEMORY_LEAK, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2021-10-11 00:23:46,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:46,050 INFO L82 PathProgramCache]: Analyzing trace with hash 2054522585, now seen corresponding path program 1 times [2021-10-11 00:23:46,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:46,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517226176] [2021-10-11 00:23:46,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:46,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:46,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:23:46,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:46,184 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:23:46,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517226176] [2021-10-11 00:23:46,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914367554] [2021-10-11 00:23:46,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76a2dfed-16f5-40c4-b434-505925a0cc82/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:23:46,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:46,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-11 00:23:46,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:23:46,491 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-11 00:23:46,492 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:23:46,495 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:23:46,496 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-11 00:23:46,496 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2021-10-11 00:23:46,557 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:23:46,558 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2021-10-11 00:23:46,575 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:23:46,591 INFO L625 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2021-10-11 00:23:46,592 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-11 00:23:46,592 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2021-10-11 00:23:46,634 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-11 00:23:46,634 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:23:46,642 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:23:46,644 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-11 00:23:46,648 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:15 [2021-10-11 00:23:46,682 INFO L348 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-10-11 00:23:46,683 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-10-11 00:23:46,685 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:23:46,692 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:23:46,693 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-11 00:23:46,693 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2021-10-11 00:23:46,762 INFO L348 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-10-11 00:23:46,763 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 12 [2021-10-11 00:23:46,765 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:23:46,770 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:23:46,772 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-10-11 00:23:46,772 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:31, output treesize:11 [2021-10-11 00:23:46,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:23:46,789 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 00:23:46,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-10-11 00:23:46,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781948145] [2021-10-11 00:23:46,790 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-10-11 00:23:46,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:46,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-11 00:23:46,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-10-11 00:23:46,792 INFO L87 Difference]: Start difference. First operand 113 states and 127 transitions. Second operand 13 states. [2021-10-11 00:23:47,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:47,465 INFO L93 Difference]: Finished difference Result 155 states and 171 transitions. [2021-10-11 00:23:47,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-11 00:23:47,466 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 24 [2021-10-11 00:23:47,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:47,468 INFO L225 Difference]: With dead ends: 155 [2021-10-11 00:23:47,468 INFO L226 Difference]: Without dead ends: 155 [2021-10-11 00:23:47,468 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2021-10-11 00:23:47,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-10-11 00:23:47,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 116. [2021-10-11 00:23:47,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2021-10-11 00:23:47,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 131 transitions. [2021-10-11 00:23:47,473 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 131 transitions. Word has length 24 [2021-10-11 00:23:47,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:47,474 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 131 transitions. [2021-10-11 00:23:47,474 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-10-11 00:23:47,474 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 131 transitions. [2021-10-11 00:23:47,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-11 00:23:47,475 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:47,475 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] [2021-10-11 00:23:47,695 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-10-11 00:23:47,695 INFO L429 AbstractCegarLoop]: === Iteration 13 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr60ENSURES_VIOLATIONMEMORY_LEAK, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2021-10-11 00:23:47,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:47,696 INFO L82 PathProgramCache]: Analyzing trace with hash 2054522586, now seen corresponding path program 1 times [2021-10-11 00:23:47,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:47,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29757487] [2021-10-11 00:23:47,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:47,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:47,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:23:47,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:47,909 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:23:47,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29757487] [2021-10-11 00:23:47,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181026595] [2021-10-11 00:23:47,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76a2dfed-16f5-40c4-b434-505925a0cc82/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:23:48,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:48,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-11 00:23:48,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:23:48,123 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-10-11 00:23:48,123 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:23:48,126 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:23:48,126 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-11 00:23:48,127 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2021-10-11 00:23:48,162 INFO L348 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-10-11 00:23:48,163 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 13 [2021-10-11 00:23:48,164 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:23:48,167 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:23:48,167 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-11 00:23:48,168 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:25, output treesize:9 [2021-10-11 00:23:48,188 INFO L348 Elim1Store]: treesize reduction 33, result has 21.4 percent of original size [2021-10-11 00:23:48,189 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 13 [2021-10-11 00:23:48,191 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:23:48,193 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:23:48,194 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-11 00:23:48,194 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:9 [2021-10-11 00:23:48,226 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-10-11 00:23:48,227 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 00:23:48,229 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 00:23:48,230 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-11 00:23:48,230 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:19, output treesize:3 [2021-10-11 00:23:48,253 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:23:48,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:23:48,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2021-10-11 00:23:48,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567848693] [2021-10-11 00:23:48,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:23:48,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:48,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:23:48,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2021-10-11 00:23:48,260 INFO L87 Difference]: Start difference. First operand 116 states and 131 transitions. Second operand 5 states. [2021-10-11 00:23:48,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:48,501 INFO L93 Difference]: Finished difference Result 141 states and 155 transitions. [2021-10-11 00:23:48,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:23:48,502 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2021-10-11 00:23:48,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:48,503 INFO L225 Difference]: With dead ends: 141 [2021-10-11 00:23:48,503 INFO L226 Difference]: Without dead ends: 141 [2021-10-11 00:23:48,504 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-10-11 00:23:48,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-10-11 00:23:48,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 113. [2021-10-11 00:23:48,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2021-10-11 00:23:48,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 126 transitions. [2021-10-11 00:23:48,509 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 126 transitions. Word has length 24 [2021-10-11 00:23:48,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:48,510 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 126 transitions. [2021-10-11 00:23:48,510 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:23:48,510 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 126 transitions. [2021-10-11 00:23:48,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 00:23:48,511 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:48,511 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] [2021-10-11 00:23:48,725 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-11 00:23:48,725 INFO L429 AbstractCegarLoop]: === Iteration 14 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr60ENSURES_VIOLATIONMEMORY_LEAK, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2021-10-11 00:23:48,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:48,726 INFO L82 PathProgramCache]: Analyzing trace with hash 57926302, now seen corresponding path program 1 times [2021-10-11 00:23:48,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:48,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100547032] [2021-10-11 00:23:48,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:48,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:48,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:23:48,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:48,898 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 00:23:48,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100547032] [2021-10-11 00:23:48,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:48,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-11 00:23:48,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373545813] [2021-10-11 00:23:48,904 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 00:23:48,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:48,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 00:23:48,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:23:48,907 INFO L87 Difference]: Start difference. First operand 113 states and 126 transitions. Second operand 7 states. [2021-10-11 00:23:49,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:49,371 INFO L93 Difference]: Finished difference Result 173 states and 190 transitions. [2021-10-11 00:23:49,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 00:23:49,372 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2021-10-11 00:23:49,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:49,374 INFO L225 Difference]: With dead ends: 173 [2021-10-11 00:23:49,375 INFO L226 Difference]: Without dead ends: 173 [2021-10-11 00:23:49,375 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:23:49,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-10-11 00:23:49,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 125. [2021-10-11 00:23:49,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2021-10-11 00:23:49,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 141 transitions. [2021-10-11 00:23:49,380 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 141 transitions. Word has length 25 [2021-10-11 00:23:49,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:49,381 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 141 transitions. [2021-10-11 00:23:49,381 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 00:23:49,381 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 141 transitions. [2021-10-11 00:23:49,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 00:23:49,385 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:49,385 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] [2021-10-11 00:23:49,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-11 00:23:49,386 INFO L429 AbstractCegarLoop]: === Iteration 15 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr60ENSURES_VIOLATIONMEMORY_LEAK, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2021-10-11 00:23:49,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:49,386 INFO L82 PathProgramCache]: Analyzing trace with hash -735940117, now seen corresponding path program 1 times [2021-10-11 00:23:49,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:49,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373960089] [2021-10-11 00:23:49,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:49,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:49,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:23:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:49,518 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 00:23:49,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373960089] [2021-10-11 00:23:49,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:49,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-11 00:23:49,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242584777] [2021-10-11 00:23:49,519 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-10-11 00:23:49,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:49,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-11 00:23:49,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:23:49,524 INFO L87 Difference]: Start difference. First operand 125 states and 141 transitions. Second operand 9 states. [2021-10-11 00:23:49,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:49,948 INFO L93 Difference]: Finished difference Result 155 states and 172 transitions. [2021-10-11 00:23:49,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-11 00:23:49,949 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2021-10-11 00:23:49,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:49,950 INFO L225 Difference]: With dead ends: 155 [2021-10-11 00:23:49,950 INFO L226 Difference]: Without dead ends: 155 [2021-10-11 00:23:49,952 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2021-10-11 00:23:49,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-10-11 00:23:49,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 129. [2021-10-11 00:23:49,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2021-10-11 00:23:49,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 147 transitions. [2021-10-11 00:23:49,956 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 147 transitions. Word has length 25 [2021-10-11 00:23:49,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:49,957 INFO L481 AbstractCegarLoop]: Abstraction has 129 states and 147 transitions. [2021-10-11 00:23:49,957 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-10-11 00:23:49,957 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 147 transitions. [2021-10-11 00:23:49,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 00:23:49,958 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:49,958 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] [2021-10-11 00:23:49,958 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-11 00:23:49,958 INFO L429 AbstractCegarLoop]: === Iteration 16 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr60ENSURES_VIOLATIONMEMORY_LEAK, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2021-10-11 00:23:49,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:49,959 INFO L82 PathProgramCache]: Analyzing trace with hash -735940116, now seen corresponding path program 1 times [2021-10-11 00:23:49,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:49,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348006171] [2021-10-11 00:23:49,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:50,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-11 00:23:50,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:50,170 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 00:23:50,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348006171] [2021-10-11 00:23:50,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:50,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-11 00:23:50,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066130203] [2021-10-11 00:23:50,171 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-10-11 00:23:50,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:50,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-11 00:23:50,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:23:50,173 INFO L87 Difference]: Start difference. First operand 129 states and 147 transitions. Second operand 9 states. [2021-10-11 00:23:50,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:50,981 INFO L93 Difference]: Finished difference Result 181 states and 198 transitions. [2021-10-11 00:23:50,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-11 00:23:50,982 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2021-10-11 00:23:50,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:50,984 INFO L225 Difference]: With dead ends: 181 [2021-10-11 00:23:50,984 INFO L226 Difference]: Without dead ends: 181 [2021-10-11 00:23:50,984 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2021-10-11 00:23:50,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-10-11 00:23:50,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 131. [2021-10-11 00:23:50,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2021-10-11 00:23:50,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 149 transitions. [2021-10-11 00:23:50,990 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 149 transitions. Word has length 25 [2021-10-11 00:23:50,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:50,990 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 149 transitions. [2021-10-11 00:23:50,991 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-10-11 00:23:50,991 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 149 transitions. [2021-10-11 00:23:50,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-11 00:23:50,992 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:50,992 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] [2021-10-11 00:23:50,992 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-11 00:23:50,992 INFO L429 AbstractCegarLoop]: === Iteration 17 === [mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr60ENSURES_VIOLATIONMEMORY_LEAK, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr57ASSERT_VIOLATIONMEMORY_FREE, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2021-10-11 00:23:50,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:50,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1431155696, now seen corresponding path program 1 times [2021-10-11 00:23:50,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:50,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272291298] [2021-10-11 00:23:50,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:51,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:23:51,013 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:23:51,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:23:51,032 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:23:51,073 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:23:51,073 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:23:51,074 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-11 00:23:51,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:23:51 BoogieIcfgContainer [2021-10-11 00:23:51,120 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:23:51,121 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:23:51,121 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:23:51,122 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:23:51,122 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:23:37" (3/4) ... [2021-10-11 00:23:51,124 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 00:23:51,210 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76a2dfed-16f5-40c4-b434-505925a0cc82/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:23:51,210 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:23:51,211 INFO L168 Benchmark]: Toolchain (without parser) took 15256.78 ms. Allocated memory was 136.3 MB in the beginning and 283.1 MB in the end (delta: 146.8 MB). Free memory was 109.4 MB in the beginning and 148.0 MB in the end (delta: -38.5 MB). Peak memory consumption was 107.9 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:51,212 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 136.3 MB. Free memory was 92.2 MB in the beginning and 92.1 MB in the end (delta: 64.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:23:51,212 INFO L168 Benchmark]: CACSL2BoogieTranslator took 584.03 ms. Allocated memory is still 136.3 MB. Free memory was 109.0 MB in the beginning and 98.7 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:51,213 INFO L168 Benchmark]: Boogie Preprocessor took 121.32 ms. Allocated memory is still 136.3 MB. Free memory was 98.2 MB in the beginning and 95.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:51,213 INFO L168 Benchmark]: RCFGBuilder took 1029.47 ms. Allocated memory was 136.3 MB in the beginning and 186.6 MB in the end (delta: 50.3 MB). Free memory was 95.6 MB in the beginning and 139.7 MB in the end (delta: -44.2 MB). Peak memory consumption was 44.0 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:51,214 INFO L168 Benchmark]: TraceAbstraction took 13421.80 ms. Allocated memory was 186.6 MB in the beginning and 283.1 MB in the end (delta: 96.5 MB). Free memory was 138.8 MB in the beginning and 150.1 MB in the end (delta: -11.3 MB). Peak memory consumption was 87.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:51,214 INFO L168 Benchmark]: Witness Printer took 88.93 ms. Allocated memory is still 283.1 MB. Free memory was 150.1 MB in the beginning and 148.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:51,217 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 136.3 MB. Free memory was 92.2 MB in the beginning and 92.1 MB in the end (delta: 64.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 584.03 ms. Allocated memory is still 136.3 MB. Free memory was 109.0 MB in the beginning and 98.7 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 121.32 ms. Allocated memory is still 136.3 MB. Free memory was 98.2 MB in the beginning and 95.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1029.47 ms. Allocated memory was 136.3 MB in the beginning and 186.6 MB in the end (delta: 50.3 MB). Free memory was 95.6 MB in the beginning and 139.7 MB in the end (delta: -44.2 MB). Peak memory consumption was 44.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 13421.80 ms. Allocated memory was 186.6 MB in the beginning and 283.1 MB in the end (delta: 96.5 MB). Free memory was 138.8 MB in the beginning and 150.1 MB in the end (delta: -11.3 MB). Peak memory consumption was 87.1 MB. Max. memory is 16.1 GB. * Witness Printer took 88.93 ms. Allocated memory is still 283.1 MB. Free memory was 150.1 MB in the beginning and 148.0 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: 1063]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L1000] SLL* head = malloc(sizeof(SLL)); VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1001] head->next = ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1002] head->prev = ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1003] head->data = 0 VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1005] SLL* x = head; VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1008] COND FALSE !(__VERIFIER_nondet_int()) [L1019] COND TRUE __VERIFIER_nondet_int() [L1020] x = malloc(sizeof(SLL)) VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-2:0}] [L1021] x->data = 1 VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-2:0}] [L1022] x->next = head VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-2:0}] [L1023] x->prev = ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-2:0}] [L1024] head = x VAL [head={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-2:0}] [L1050] x = head VAL [head={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-2:0}] [L1053] EXPR x->data VAL [head={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-2:0}, x->data=1] [L1053] COND FALSE !(x->data != 1) [L1059] EXPR x->next VAL [head={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-2:0}, x->next={-1:0}] [L1059] x = x->next [L1060] COND TRUE \read(*x) VAL [head={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1062] EXPR x->data VAL [head={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->data=0] [L1062] COND TRUE x->data != 1 [L1063] reach_error() VAL [head={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 133 locations, 61 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 13.2s, OverallIterations: 17, TraceHistogramMax: 1, AutomataDifference: 8.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1286 SDtfs, 2225 SDslu, 2391 SDs, 0 SdLazy, 6509 SolverSat, 368 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 235 GetRequests, 76 SyntacticMatches, 13 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=148occurred in iteration=3, 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, 16 MinimizatonAttempts, 643 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 377 NumberOfCodeBlocks, 377 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 332 ConstructedInterpolants, 0 QuantifiedInterpolants, 50921 SizeOfPredicates, 18 NumberOfNonLiveVariables, 344 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 18 InterpolantComputations, 15 PerfectInterpolantSequences, 2/5 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...