./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 811b19098d8792ad6e5000a82cea527dd92a4bca0da5ce1bf33c0114316cf54d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:40:54,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:40:54,092 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:40:54,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:40:54,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:40:54,155 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:40:54,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:40:54,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:40:54,166 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:40:54,173 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:40:54,175 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:40:54,176 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:40:54,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:40:54,179 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:40:54,181 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:40:54,184 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:40:54,185 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:40:54,186 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:40:54,196 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:40:54,202 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:40:54,203 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:40:54,210 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:40:54,211 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:40:54,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:40:54,219 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:40:54,219 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:40:54,220 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:40:54,222 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:40:54,222 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:40:54,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:40:54,224 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:40:54,225 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:40:54,227 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:40:54,228 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:40:54,230 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:40:54,231 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:40:54,231 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:40:54,232 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:40:54,232 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:40:54,233 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:40:54,234 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:40:54,234 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 05:40:54,280 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:40:54,281 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:40:54,282 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:40:54,282 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:40:54,282 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:40:54,283 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:40:54,283 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:40:54,283 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:40:54,289 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:40:54,289 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:40:54,290 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:40:54,291 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:40:54,291 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:40:54,291 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:40:54,292 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:40:54,292 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:40:54,292 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:40:54,293 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:40:54,293 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:40:54,293 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:40:54,293 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:40:54,294 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:40:54,294 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:40:54,294 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:40:54,294 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:40:54,295 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:40:54,295 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:40:54,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:40:54,296 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:40:54,297 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:40:54,297 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:40:54,297 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:40:54,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:40:54,298 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:40:54,298 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:40:54,299 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:40:54,299 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 811b19098d8792ad6e5000a82cea527dd92a4bca0da5ce1bf33c0114316cf54d [2021-11-03 05:40:54,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:40:54,623 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:40:54,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:40:54,626 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:40:54,627 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:40:54,628 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i [2021-11-03 05:40:54,699 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/data/a81ace70b/b1095553561a4213b188dadefc8973dc/FLAG6cf0bf913 [2021-11-03 05:40:55,455 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:40:55,457 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i [2021-11-03 05:40:55,503 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/data/a81ace70b/b1095553561a4213b188dadefc8973dc/FLAG6cf0bf913 [2021-11-03 05:40:55,995 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/data/a81ace70b/b1095553561a4213b188dadefc8973dc [2021-11-03 05:40:56,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:40:56,009 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:40:56,013 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:40:56,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:40:56,016 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:40:56,017 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:40:56" (1/1) ... [2021-11-03 05:40:56,020 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c442dbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:56, skipping insertion in model container [2021-11-03 05:40:56,020 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:40:56" (1/1) ... [2021-11-03 05:40:56,028 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:40:56,162 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:40:56,456 WARN L228 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_7248a987-fa2c-4a70-a4be-be95057005ca/sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i[4502,4515] [2021-11-03 05:40:56,465 WARN L228 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_7248a987-fa2c-4a70-a4be-be95057005ca/sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i[4562,4575] [2021-11-03 05:40:56,490 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:40:56,498 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:40:57,323 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:40:57,323 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:40:57,324 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:40:57,325 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:40:57,326 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:40:57,338 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:40:57,339 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:40:57,341 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:40:57,342 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:40:57,344 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:40:57,345 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:40:57,345 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:40:57,346 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:40:57,665 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:40:57,666 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:40:57,670 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:40:57,671 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:40:57,672 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:40:57,673 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:40:57,674 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:40:57,674 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:40:57,675 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:40:57,675 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:40:57,816 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:40:57,832 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.IllegalArgumentException: byte size smaller than 1 makes no sense at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1054) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:962) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1369) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:249) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.translateInitializer(CHandler.java:2938) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:2798) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2101) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1119) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:211) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1068) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1452) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3247) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2321) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 05:40:57,847 INFO L168 Benchmark]: Toolchain (without parser) took 1836.92 ms. Allocated memory was 98.6 MB in the beginning and 134.2 MB in the end (delta: 35.7 MB). Free memory was 56.5 MB in the beginning and 78.5 MB in the end (delta: -22.1 MB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. [2021-11-03 05:40:57,848 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 98.6 MB. Free memory was 68.9 MB in the beginning and 68.9 MB in the end (delta: 21.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:40:57,849 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1832.47 ms. Allocated memory was 98.6 MB in the beginning and 134.2 MB in the end (delta: 35.7 MB). Free memory was 56.3 MB in the beginning and 78.5 MB in the end (delta: -22.3 MB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. [2021-11-03 05:40:57,852 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 98.6 MB. Free memory was 68.9 MB in the beginning and 68.9 MB in the end (delta: 21.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1832.47 ms. Allocated memory was 98.6 MB in the beginning and 134.2 MB in the end (delta: 35.7 MB). Free memory was 56.3 MB in the beginning and 78.5 MB in the end (delta: -22.3 MB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: IllegalArgumentException: byte size smaller than 1 makes no sense de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: IllegalArgumentException: byte size smaller than 1 makes no sense: de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 811b19098d8792ad6e5000a82cea527dd92a4bca0da5ce1bf33c0114316cf54d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:41:00,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:41:00,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:41:00,197 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:41:00,199 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:41:00,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:41:00,204 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:41:00,209 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:41:00,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:41:00,213 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:41:00,214 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:41:00,216 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:41:00,218 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:41:00,221 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:41:00,223 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:41:00,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:41:00,229 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:41:00,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:41:00,238 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:41:00,243 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:41:00,248 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:41:00,249 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:41:00,251 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:41:00,253 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:41:00,257 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:41:00,261 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:41:00,262 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:41:00,263 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:41:00,264 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:41:00,265 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:41:00,266 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:41:00,267 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:41:00,268 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:41:00,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:41:00,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:41:00,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:41:00,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:41:00,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:41:00,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:41:00,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:41:00,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:41:00,283 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 05:41:00,328 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:41:00,328 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:41:00,330 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:41:00,330 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:41:00,330 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:41:00,330 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:41:00,331 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:41:00,331 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:41:00,331 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:41:00,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:41:00,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:41:00,333 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:41:00,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:41:00,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:41:00,334 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:41:00,335 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:41:00,335 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:41:00,335 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:41:00,335 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:41:00,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:41:00,336 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:41:00,336 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:41:00,336 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:41:00,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:41:00,337 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:41:00,337 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:41:00,337 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:41:00,337 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:41:00,337 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:41:00,338 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:41:00,338 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:41:00,338 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:41:00,338 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 811b19098d8792ad6e5000a82cea527dd92a4bca0da5ce1bf33c0114316cf54d [2021-11-03 05:41:00,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:41:00,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:41:00,763 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:41:00,764 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:41:00,765 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:41:00,766 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i [2021-11-03 05:41:00,849 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/data/8b82b5abd/ded9229b07514de1ace7d8bb68c5c6c2/FLAG9187005c8 [2021-11-03 05:41:01,777 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:41:01,778 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i [2021-11-03 05:41:01,820 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/data/8b82b5abd/ded9229b07514de1ace7d8bb68c5c6c2/FLAG9187005c8 [2021-11-03 05:41:02,296 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/data/8b82b5abd/ded9229b07514de1ace7d8bb68c5c6c2 [2021-11-03 05:41:02,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:41:02,300 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:41:02,302 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:41:02,302 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:41:02,309 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:41:02,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:41:02" (1/1) ... [2021-11-03 05:41:02,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39715c67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:02, skipping insertion in model container [2021-11-03 05:41:02,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:41:02" (1/1) ... [2021-11-03 05:41:02,318 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:41:02,414 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:41:02,727 WARN L228 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_7248a987-fa2c-4a70-a4be-be95057005ca/sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i[4502,4515] [2021-11-03 05:41:02,734 WARN L228 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_7248a987-fa2c-4a70-a4be-be95057005ca/sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i[4562,4575] [2021-11-03 05:41:02,754 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:41:02,759 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:41:03,873 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:03,874 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:03,874 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:03,875 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:03,876 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:03,890 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:03,890 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:03,892 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:03,893 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:03,895 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:03,896 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:03,897 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:03,897 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:04,300 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:41:04,301 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:41:04,302 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:41:04,303 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:41:04,305 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:41:04,305 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:41:04,306 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:41:04,306 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:41:04,307 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:41:04,308 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:41:04,464 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:41:04,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:41:04,507 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:41:04,547 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:41:04,550 WARN L228 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_7248a987-fa2c-4a70-a4be-be95057005ca/sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i[4502,4515] [2021-11-03 05:41:04,551 WARN L228 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_7248a987-fa2c-4a70-a4be-be95057005ca/sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i[4562,4575] [2021-11-03 05:41:04,552 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:41:04,552 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:41:04,586 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:04,587 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:04,587 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:04,588 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:04,588 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:04,595 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:04,595 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:04,596 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:04,597 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:04,598 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:04,598 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:04,599 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:04,599 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:04,632 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:41:04,632 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:41:04,633 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:41:04,634 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:41:04,635 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:41:04,635 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:41:04,636 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:41:04,636 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:41:04,637 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:41:04,637 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:41:04,658 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:41:04,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:41:04,708 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:41:04,723 WARN L228 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_7248a987-fa2c-4a70-a4be-be95057005ca/sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i[4502,4515] [2021-11-03 05:41:04,724 WARN L228 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_7248a987-fa2c-4a70-a4be-be95057005ca/sv-benchmarks/c/aws-c-common/aws_linked_list_insert_after_harness.i[4562,4575] [2021-11-03 05:41:04,726 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:41:04,726 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:41:04,757 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:04,757 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:04,758 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:04,758 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:04,759 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:04,764 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:04,765 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:04,766 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:04,766 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:04,767 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:04,768 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:04,768 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:04,768 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:41:04,797 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:41:04,798 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:41:04,798 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:41:04,799 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:41:04,799 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:41:04,800 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:41:04,800 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:41:04,801 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:41:04,801 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:41:04,802 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:41:04,837 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:41:04,851 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:41:05,103 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:41:05,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:05 WrapperNode [2021-11-03 05:41:05,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:41:05,104 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:41:05,105 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:41:05,105 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:41:05,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:05" (1/1) ... [2021-11-03 05:41:05,208 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:05" (1/1) ... [2021-11-03 05:41:05,292 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:41:05,295 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:41:05,295 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:41:05,296 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:41:05,305 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:05" (1/1) ... [2021-11-03 05:41:05,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:05" (1/1) ... [2021-11-03 05:41:05,321 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:05" (1/1) ... [2021-11-03 05:41:05,322 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:05" (1/1) ... [2021-11-03 05:41:05,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:05" (1/1) ... [2021-11-03 05:41:05,383 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:05" (1/1) ... [2021-11-03 05:41:05,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:05" (1/1) ... [2021-11-03 05:41:05,409 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:41:05,410 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:41:05,410 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:41:05,410 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:41:05,411 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:05" (1/1) ... [2021-11-03 05:41:05,422 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:41:05,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:41:05,443 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:41:05,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:41:05,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:41:05,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:41:05,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:41:05,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:41:05,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:41:05,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:41:05,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:41:05,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 05:41:06,335 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:41:06,335 INFO L299 CfgBuilder]: Removed 48 assume(true) statements. [2021-11-03 05:41:06,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:41:06 BoogieIcfgContainer [2021-11-03 05:41:06,338 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:41:06,340 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:41:06,341 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:41:06,344 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:41:06,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:41:02" (1/3) ... [2021-11-03 05:41:06,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e5691cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:41:06, skipping insertion in model container [2021-11-03 05:41:06,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:05" (2/3) ... [2021-11-03 05:41:06,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e5691cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:41:06, skipping insertion in model container [2021-11-03 05:41:06,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:41:06" (3/3) ... [2021-11-03 05:41:06,348 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_linked_list_insert_after_harness.i [2021-11-03 05:41:06,353 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:41:06,354 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-11-03 05:41:06,403 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:41:06,409 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 05:41:06,409 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-11-03 05:41:06,425 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 80 states have (on average 1.475) internal successors, (118), 90 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:41:06,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-03 05:41:06,430 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:41:06,431 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:41:06,432 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-03 05:41:06,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:41:06,437 INFO L85 PathProgramCache]: Analyzing trace with hash -828458406, now seen corresponding path program 1 times [2021-11-03 05:41:06,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:41:06,451 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1832125599] [2021-11-03 05:41:06,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:41:06,452 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:41:06,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:41:06,455 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:41:06,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:41:06,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:41:06,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 05:41:06,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:41:06,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:41:06,743 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:41:06,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:41:06,843 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:41:06,843 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1832125599] [2021-11-03 05:41:06,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1832125599] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:41:06,844 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:41:06,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 05:41:06,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543530827] [2021-11-03 05:41:06,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 05:41:06,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:41:06,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 05:41:06,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:41:06,865 INFO L87 Difference]: Start difference. First operand has 91 states, 80 states have (on average 1.475) internal successors, (118), 90 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:41:06,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:41:06,888 INFO L93 Difference]: Finished difference Result 174 states and 225 transitions. [2021-11-03 05:41:06,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 05:41:06,890 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-03 05:41:06,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:41:06,898 INFO L225 Difference]: With dead ends: 174 [2021-11-03 05:41:06,898 INFO L226 Difference]: Without dead ends: 86 [2021-11-03 05:41:06,901 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:41:06,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-11-03 05:41:06,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2021-11-03 05:41:06,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 76 states have (on average 1.3289473684210527) internal successors, (101), 85 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:41:06,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 101 transitions. [2021-11-03 05:41:06,938 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 101 transitions. Word has length 18 [2021-11-03 05:41:06,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:41:06,938 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 101 transitions. [2021-11-03 05:41:06,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:41:06,939 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 101 transitions. [2021-11-03 05:41:06,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-03 05:41:06,940 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:41:06,940 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:41:06,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-03 05:41:07,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:41:07,157 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-03 05:41:07,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:41:07,158 INFO L85 PathProgramCache]: Analyzing trace with hash 552664542, now seen corresponding path program 1 times [2021-11-03 05:41:07,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:41:07,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1690297043] [2021-11-03 05:41:07,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:41:07,159 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:41:07,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:41:07,160 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:41:07,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:41:07,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:41:07,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-03 05:41:07,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:41:07,733 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-03 05:41:07,739 INFO L388 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 1 case distinctions, treesize of input 51 treesize of output 38 [2021-11-03 05:41:07,753 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-03 05:41:07,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 50 treesize of output 42 [2021-11-03 05:41:24,066 WARN L207 SmtUtils]: Spent 15.65 s on a formula simplification. DAG size of input: 73 DAG size of output: 37 [2021-11-03 05:41:24,067 INFO L354 Elim1Store]: treesize reduction 506, result has 20.7 percent of original size [2021-11-03 05:41:24,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 762 treesize of output 537 [2021-11-03 05:41:24,248 INFO L354 Elim1Store]: treesize reduction 186, result has 17.0 percent of original size [2021-11-03 05:41:24,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 951 treesize of output 336 [2021-11-03 05:41:33,560 INFO L354 Elim1Store]: treesize reduction 101, result has 7.3 percent of original size [2021-11-03 05:41:33,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 10 case distinctions, treesize of input 189 treesize of output 105 [2021-11-03 05:41:33,617 INFO L354 Elim1Store]: treesize reduction 82, result has 3.5 percent of original size [2021-11-03 05:41:33,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 73 treesize of output 48 [2021-11-03 05:41:33,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:41:33,738 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:41:33,997 INFO L388 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 2605 treesize of output 2453 [2021-11-03 05:41:37,082 INFO L388 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 3506 treesize of output 3458 [2021-11-03 05:41:53,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:41:53,498 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:41:53,498 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1690297043] [2021-11-03 05:41:53,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1690297043] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:41:53,498 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:41:53,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2021-11-03 05:41:53,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383182034] [2021-11-03 05:41:53,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-03 05:41:53,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:41:53,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-03 05:41:53,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-11-03 05:41:53,503 INFO L87 Difference]: Start difference. First operand 86 states and 101 transitions. Second operand has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:41:57,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:41:57,066 INFO L93 Difference]: Finished difference Result 107 states and 124 transitions. [2021-11-03 05:41:57,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-03 05:41:57,066 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-03 05:41:57,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:41:57,068 INFO L225 Difference]: With dead ends: 107 [2021-11-03 05:41:57,069 INFO L226 Difference]: Without dead ends: 105 [2021-11-03 05:41:57,070 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2021-11-03 05:41:57,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2021-11-03 05:41:57,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 89. [2021-11-03 05:41:57,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 79 states have (on average 1.3164556962025316) internal successors, (104), 88 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:41:57,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 104 transitions. [2021-11-03 05:41:57,083 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 104 transitions. Word has length 18 [2021-11-03 05:41:57,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:41:57,084 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 104 transitions. [2021-11-03 05:41:57,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:41:57,085 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 104 transitions. [2021-11-03 05:41:57,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-03 05:41:57,085 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:41:57,086 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:41:57,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:41:57,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:41:57,301 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-03 05:41:57,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:41:57,302 INFO L85 PathProgramCache]: Analyzing trace with hash 554511584, now seen corresponding path program 1 times [2021-11-03 05:41:57,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:41:57,303 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [768998592] [2021-11-03 05:41:57,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:41:57,304 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:41:57,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:41:57,306 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:41:57,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:41:57,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:41:57,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-03 05:41:57,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:42:48,593 WARN L207 SmtUtils]: Spent 50.98 s on a formula simplification. DAG size of input: 127 DAG size of output: 74 [2021-11-03 05:42:48,595 INFO L354 Elim1Store]: treesize reduction 1556, result has 22.4 percent of original size [2021-11-03 05:42:48,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 1135 treesize of output 646 [2021-11-03 05:42:48,633 INFO L388 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 2259 treesize of output 2151 [2021-11-03 05:42:48,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:42:48,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:42:48,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:42:48,972 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:42:48,973 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 318 treesize of output 294 [2021-11-03 05:42:49,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:42:49,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:42:49,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:42:49,855 INFO L244 Elim1Store]: Index analysis took 343 ms [2021-11-03 05:42:49,978 INFO L354 Elim1Store]: treesize reduction 18, result has 48.6 percent of original size [2021-11-03 05:42:49,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 120 treesize of output 104 [2021-11-03 05:42:50,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:42:50,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:42:50,959 INFO L354 Elim1Store]: treesize reduction 74, result has 44.4 percent of original size [2021-11-03 05:42:50,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 131 treesize of output 149 [2021-11-03 05:42:51,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:42:51,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:42:51,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:42:51,681 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:42:51,692 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-03 05:42:51,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 120 treesize of output 88 [2021-11-03 05:42:52,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:42:52,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:42:52,411 INFO L354 Elim1Store]: treesize reduction 90, result has 32.3 percent of original size [2021-11-03 05:42:52,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 256 treesize of output 240 [2021-11-03 05:43:05,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:43:05,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:43:05,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:43:05,533 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:43:05,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 251 treesize of output 251 [2021-11-03 05:43:09,988 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:45:05,226 INFO L354 Elim1Store]: treesize reduction 76, result has 44.5 percent of original size [2021-11-03 05:45:05,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 384 treesize of output 301 [2021-11-03 05:45:13,704 INFO L354 Elim1Store]: treesize reduction 32, result has 82.9 percent of original size [2021-11-03 05:45:13,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 145 treesize of output 227 [2021-11-03 05:45:14,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:45:14,773 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:45:16,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:45:16,860 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:45:16,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [768998592] [2021-11-03 05:45:16,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [768998592] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:45:16,860 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:45:16,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 7 [2021-11-03 05:45:16,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641916617] [2021-11-03 05:45:16,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 05:45:16,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:45:16,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 05:45:16,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=29, Unknown=1, NotChecked=0, Total=42 [2021-11-03 05:45:16,863 INFO L87 Difference]: Start difference. First operand 89 states and 104 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:45:52,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:45:52,786 INFO L93 Difference]: Finished difference Result 178 states and 208 transitions. [2021-11-03 05:45:52,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 05:45:52,787 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-03 05:45:52,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:45:52,788 INFO L225 Difference]: With dead ends: 178 [2021-11-03 05:45:52,788 INFO L226 Difference]: Without dead ends: 92 [2021-11-03 05:45:52,789 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 25.4s TimeCoverageRelationStatistics Valid=65, Invalid=107, Unknown=10, NotChecked=0, Total=182 [2021-11-03 05:45:52,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-11-03 05:45:52,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 91. [2021-11-03 05:45:52,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 81 states have (on average 1.271604938271605) internal successors, (103), 90 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:45:52,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 103 transitions. [2021-11-03 05:45:52,799 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 103 transitions. Word has length 18 [2021-11-03 05:45:52,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:45:52,800 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 103 transitions. [2021-11-03 05:45:52,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:45:52,800 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 103 transitions. [2021-11-03 05:45:52,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-03 05:45:52,801 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:45:52,801 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:45:52,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-03 05:45:53,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:45:53,018 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-03 05:45:53,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:45:53,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1965448350, now seen corresponding path program 1 times [2021-11-03 05:45:53,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:45:53,020 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2110286169] [2021-11-03 05:45:53,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:45:53,020 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:45:53,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:45:53,021 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:45:53,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:45:53,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:45:53,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 05:45:53,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:45:53,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:45:53,288 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:45:53,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:45:53,348 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:45:53,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2110286169] [2021-11-03 05:45:53,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2110286169] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:45:53,349 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:45:53,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 05:45:53,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600044789] [2021-11-03 05:45:53,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:45:53,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:45:53,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:45:53,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:45:53,352 INFO L87 Difference]: Start difference. First operand 91 states and 103 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:45:53,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:45:53,489 INFO L93 Difference]: Finished difference Result 161 states and 183 transitions. [2021-11-03 05:45:53,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:45:53,489 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-03 05:45:53,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:45:53,490 INFO L225 Difference]: With dead ends: 161 [2021-11-03 05:45:53,491 INFO L226 Difference]: Without dead ends: 84 [2021-11-03 05:45:53,492 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:45:53,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-11-03 05:45:53,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2021-11-03 05:45:53,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 75 states have (on average 1.2533333333333334) internal successors, (94), 83 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:45:53,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 94 transitions. [2021-11-03 05:45:53,502 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 94 transitions. Word has length 18 [2021-11-03 05:45:53,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:45:53,502 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 94 transitions. [2021-11-03 05:45:53,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:45:53,503 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 94 transitions. [2021-11-03 05:45:53,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-03 05:45:53,504 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:45:53,504 INFO L513 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] [2021-11-03 05:45:53,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 05:45:53,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:45:53,724 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-03 05:45:53,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:45:53,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1088258973, now seen corresponding path program 1 times [2021-11-03 05:45:53,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:45:53,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [643155248] [2021-11-03 05:45:53,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:45:53,726 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:45:53,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:45:53,727 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:45:53,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 05:45:53,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:45:53,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-03 05:45:53,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:45:54,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:00,505 WARN L207 SmtUtils]: Spent 6.43 s on a formula simplification. DAG size of input: 119 DAG size of output: 70 [2021-11-03 05:46:00,505 INFO L354 Elim1Store]: treesize reduction 1317, result has 23.3 percent of original size [2021-11-03 05:46:00,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 4441 treesize of output 2839 [2021-11-03 05:46:00,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:03,499 INFO L354 Elim1Store]: treesize reduction 976, result has 29.5 percent of original size [2021-11-03 05:46:03,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 8 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 10 new quantified variables, introduced 24 case distinctions, treesize of input 10564 treesize of output 4361 [2021-11-03 05:46:04,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:04,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:04,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 10 [2021-11-03 05:46:05,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:05,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:05,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:05,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2021-11-03 05:46:05,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:05,681 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-11-03 05:46:05,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 13 [2021-11-03 05:46:06,534 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:46:06,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:06,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:06,558 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:46:06,577 INFO L354 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2021-11-03 05:46:06,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 226 treesize of output 176 [2021-11-03 05:46:06,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:07,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:07,574 INFO L354 Elim1Store]: treesize reduction 52, result has 54.0 percent of original size [2021-11-03 05:46:07,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 294 treesize of output 304 [2021-11-03 05:46:10,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:10,068 INFO L354 Elim1Store]: treesize reduction 15, result has 28.6 percent of original size [2021-11-03 05:46:10,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 16 [2021-11-03 05:46:10,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:10,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-03 05:46:11,066 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:46:11,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:11,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:11,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 10 [2021-11-03 05:46:11,663 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:46:11,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:11,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 7 [2021-11-03 05:46:12,135 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:46:12,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:12,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:12,494 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-03 05:46:12,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 13 [2021-11-03 05:46:12,833 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:46:13,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:13,293 INFO L354 Elim1Store]: treesize reduction 58, result has 13.4 percent of original size [2021-11-03 05:46:13,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 22 [2021-11-03 05:46:14,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:14,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:14,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2021-11-03 05:46:14,851 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:46:15,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:15,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:15,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 33 [2021-11-03 05:46:15,647 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:46:15,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:15,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:15,742 INFO L354 Elim1Store]: treesize reduction 21, result has 32.3 percent of original size [2021-11-03 05:46:15,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 43 [2021-11-03 05:46:16,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:16,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:16,285 INFO L354 Elim1Store]: treesize reduction 16, result has 71.9 percent of original size [2021-11-03 05:46:16,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 60 treesize of output 80 [2021-11-03 05:46:27,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:27,773 INFO L354 Elim1Store]: treesize reduction 30, result has 57.7 percent of original size [2021-11-03 05:46:27,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 64 treesize of output 84 [2021-11-03 05:46:28,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:28,507 INFO L354 Elim1Store]: treesize reduction 14, result has 79.1 percent of original size [2021-11-03 05:46:28,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 71 treesize of output 103 [2021-11-03 05:46:28,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:28,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:28,971 INFO L354 Elim1Store]: treesize reduction 28, result has 50.9 percent of original size [2021-11-03 05:46:28,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 53 treesize of output 61 [2021-11-03 05:46:29,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:29,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:29,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:29,155 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:46:29,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 21 [2021-11-03 05:46:30,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:30,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-03 05:46:30,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:30,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:30,728 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:46:30,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 7 [2021-11-03 05:46:31,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:31,264 INFO L354 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2021-11-03 05:46:31,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 13 [2021-11-03 05:46:31,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:31,565 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-03 05:46:31,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 10 [2021-11-03 05:46:34,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:34,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:34,840 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:46:34,849 INFO L354 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2021-11-03 05:46:34,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 64 treesize of output 38 [2021-11-03 05:46:34,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:34,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:35,162 INFO L354 Elim1Store]: treesize reduction 86, result has 21.1 percent of original size [2021-11-03 05:46:35,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 64 treesize of output 60 [2021-11-03 05:46:35,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:35,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:46:35,846 INFO L354 Elim1Store]: treesize reduction 16, result has 71.9 percent of original size [2021-11-03 05:46:35,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 60 treesize of output 80 [2021-11-03 05:46:52,729 INFO L354 Elim1Store]: treesize reduction 160, result has 16.2 percent of original size [2021-11-03 05:46:52,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 245 treesize of output 152 [2021-11-03 05:46:53,045 INFO L354 Elim1Store]: treesize reduction 153, result has 26.8 percent of original size [2021-11-03 05:46:53,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 21 case distinctions, treesize of input 116 treesize of output 132 [2021-11-03 05:46:53,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:46:53,608 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:46:54,893 INFO L354 Elim1Store]: treesize reduction 3390, result has 0.0 percent of original size [2021-11-03 05:46:54,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 21 case distinctions, treesize of input 3441982 treesize of output 1 [2021-11-03 05:46:54,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:46:54,917 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:46:54,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [643155248] [2021-11-03 05:46:54,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [643155248] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:46:54,918 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:46:54,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 20 [2021-11-03 05:46:54,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828335547] [2021-11-03 05:46:54,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-03 05:46:54,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:46:54,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-03 05:46:54,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2021-11-03 05:46:54,920 INFO L87 Difference]: Start difference. First operand 84 states and 94 transitions. Second operand has 20 states, 20 states have (on average 2.4) internal successors, (48), 20 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:47:33,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:47:33,201 INFO L93 Difference]: Finished difference Result 113 states and 126 transitions. [2021-11-03 05:47:33,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-03 05:47:33,202 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.4) internal successors, (48), 20 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-11-03 05:47:33,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:47:33,204 INFO L225 Difference]: With dead ends: 113 [2021-11-03 05:47:33,204 INFO L226 Difference]: Without dead ends: 111 [2021-11-03 05:47:33,205 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 23.1s TimeCoverageRelationStatistics Valid=301, Invalid=889, Unknown=0, NotChecked=0, Total=1190 [2021-11-03 05:47:33,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-11-03 05:47:33,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 87. [2021-11-03 05:47:33,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 78 states have (on average 1.2435897435897436) internal successors, (97), 86 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:47:33,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 97 transitions. [2021-11-03 05:47:33,221 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 97 transitions. Word has length 25 [2021-11-03 05:47:33,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:47:33,222 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 97 transitions. [2021-11-03 05:47:33,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.4) internal successors, (48), 20 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:47:33,223 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 97 transitions. [2021-11-03 05:47:33,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-03 05:47:33,224 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:47:33,224 INFO L513 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] [2021-11-03 05:47:33,241 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-03 05:47:33,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:47:33,429 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-03 05:47:33,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:47:33,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1086411931, now seen corresponding path program 1 times [2021-11-03 05:47:33,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:47:33,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [676283388] [2021-11-03 05:47:33,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:47:33,431 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:47:33,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:47:33,432 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:47:33,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7248a987-fa2c-4a70-a4be-be95057005ca/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 05:47:33,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:47:33,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-03 05:47:33,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:47:33,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:47:54,743 WARN L207 SmtUtils]: Spent 20.84 s on a formula simplification. DAG size of input: 119 DAG size of output: 76 [2021-11-03 05:47:54,744 INFO L354 Elim1Store]: treesize reduction 1198, result has 30.2 percent of original size [2021-11-03 05:47:54,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 4441 treesize of output 2958 [2021-11-03 05:47:54,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:47:57,939 INFO L354 Elim1Store]: treesize reduction 976, result has 29.5 percent of original size [2021-11-03 05:47:57,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 8 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 10 new quantified variables, introduced 24 case distinctions, treesize of input 11003 treesize of output 4764 [2021-11-03 05:47:58,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:47:58,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:47:58,623 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:47:58,637 INFO L354 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2021-11-03 05:47:58,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 110 treesize of output 84 [2021-11-03 05:47:58,833 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:47:58,990 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:47:59,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:47:59,274 INFO L354 Elim1Store]: treesize reduction 53, result has 20.9 percent of original size [2021-11-03 05:47:59,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 79 treesize of output 73 [2021-11-03 05:47:59,716 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:48:00,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:48:00,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:48:00,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:48:00,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 59 [2021-11-03 05:48:00,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:48:00,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:48:01,340 INFO L354 Elim1Store]: treesize reduction 38, result has 66.4 percent of original size [2021-11-03 05:48:01,341 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 337 treesize of output 361 [2021-11-03 05:48:06,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:48:06,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:48:06,121 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:48:06,135 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 05:48:06,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 13 [2021-11-03 05:48:06,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:48:06,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:48:06,814 INFO L354 Elim1Store]: treesize reduction 43, result has 24.6 percent of original size [2021-11-03 05:48:06,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 27 [2021-11-03 05:48:07,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:48:07,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:48:07,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:48:07,232 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:48:07,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 13 [2021-11-03 05:48:07,476 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:48:08,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:48:08,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:48:08,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:48:08,137 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:48:08,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 10 [2021-11-03 05:48:09,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:48:09,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:48:09,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:48:09,068 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:48:09,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 10 [2021-11-03 05:48:09,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:48:09,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:48:09,666 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:48:09,682 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 05:48:09,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 10 [2021-11-03 05:48:10,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:48:10,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:48:10,459 INFO L354 Elim1Store]: treesize reduction 28, result has 50.9 percent of original size [2021-11-03 05:48:10,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 53 treesize of output 61 [2021-11-03 05:49:39,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:49:39,659 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-03 05:49:39,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 10 [2021-11-03 05:49:39,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:49:39,947 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-11-03 05:49:39,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 13 [2021-11-03 05:49:40,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:49:40,574 INFO L354 Elim1Store]: treesize reduction 17, result has 45.2 percent of original size [2021-11-03 05:49:40,574 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 61 [2021-11-03 05:49:41,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:49:41,534 INFO L354 Elim1Store]: treesize reduction 30, result has 57.7 percent of original size [2021-11-03 05:49:41,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 60 treesize of output 80 [2021-11-03 05:49:42,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:49:42,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:49:42,216 INFO L354 Elim1Store]: treesize reduction 43, result has 24.6 percent of original size [2021-11-03 05:49:42,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 43 treesize of output 37 [2021-11-03 05:49:43,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:49:43,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:49:43,437 INFO L354 Elim1Store]: treesize reduction 16, result has 71.9 percent of original size [2021-11-03 05:49:43,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 60 treesize of output 80 [2021-11-03 05:49:43,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:49:43,951 INFO L354 Elim1Store]: treesize reduction 14, result has 79.1 percent of original size [2021-11-03 05:49:43,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 67 treesize of output 99 [2021-11-03 05:49:44,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:49:44,560 INFO L354 Elim1Store]: treesize reduction 26, result has 61.2 percent of original size [2021-11-03 05:49:44,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 60 treesize of output 80 [2021-11-03 05:49:44,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:49:44,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:49:44,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:49:44,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2021-11-03 05:49:45,360 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-03 05:49:45,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:49:45,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:49:45,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:49:45,685 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:49:45,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 13 [2021-11-03 05:50:33,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:50:33,645 INFO L354 Elim1Store]: treesize reduction 70, result has 63.0 percent of original size [2021-11-03 05:50:33,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 253 treesize of output 308