./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.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_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/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_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/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_fa8e522a-9515-4202-97ae-0ed3f051e187/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 b875da017a84450a4103e052cdea13d2bfe14ebd5ef6946815ef19c566574bb1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:02:36,099 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:02:36,101 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:02:36,132 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:02:36,132 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:02:36,133 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:02:36,135 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:02:36,137 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:02:36,139 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:02:36,140 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:02:36,141 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:02:36,146 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:02:36,147 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:02:36,150 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:02:36,152 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:02:36,155 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:02:36,157 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:02:36,163 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:02:36,166 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:02:36,170 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:02:36,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:02:36,176 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:02:36,177 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:02:36,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:02:36,183 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:02:36,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:02:36,189 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:02:36,190 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:02:36,191 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:02:36,192 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:02:36,194 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:02:36,195 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:02:36,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:02:36,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:02:36,199 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:02:36,199 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:02:36,200 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:02:36,200 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:02:36,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:02:36,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:02:36,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:02:36,203 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 05:02:36,249 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:02:36,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:02:36,251 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:02:36,251 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:02:36,251 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:02:36,252 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:02:36,252 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:02:36,252 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:02:36,258 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:02:36,259 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:02:36,260 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:02:36,260 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:02:36,260 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:02:36,261 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:02:36,261 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:02:36,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:02:36,262 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:02:36,262 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:02:36,262 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:02:36,262 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:02:36,263 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:02:36,263 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:02:36,263 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:02:36,263 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:02:36,264 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:02:36,264 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:02:36,264 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:02:36,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:02:36,265 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:02:36,270 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:02:36,270 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:02:36,270 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:02:36,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:02:36,271 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:02:36,271 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:02:36,271 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:02:36,271 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_fa8e522a-9515-4202-97ae-0ed3f051e187/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b875da017a84450a4103e052cdea13d2bfe14ebd5ef6946815ef19c566574bb1 [2021-11-03 05:02:36,528 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:02:36,556 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:02:36,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:02:36,560 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:02:36,562 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:02:36,563 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i [2021-11-03 05:02:36,625 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/data/af55c78fa/3e5da913494f4e5084b047bc98a99dbe/FLAGdf934f6b6 [2021-11-03 05:02:37,526 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:02:37,527 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i [2021-11-03 05:02:37,572 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/data/af55c78fa/3e5da913494f4e5084b047bc98a99dbe/FLAGdf934f6b6 [2021-11-03 05:02:37,940 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/data/af55c78fa/3e5da913494f4e5084b047bc98a99dbe [2021-11-03 05:02:37,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:02:37,943 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:02:37,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:02:37,953 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:02:37,956 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:02:37,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:02:37" (1/1) ... [2021-11-03 05:02:37,957 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dc31eb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:02:37, skipping insertion in model container [2021-11-03 05:02:37,957 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:02:37" (1/1) ... [2021-11-03 05:02:37,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:02:38,079 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:02:38,422 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_fa8e522a-9515-4202-97ae-0ed3f051e187/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i[4493,4506] [2021-11-03 05:02:38,430 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_fa8e522a-9515-4202-97ae-0ed3f051e187/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i[4553,4566] [2021-11-03 05:02:38,459 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:02:38,465 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:02:39,639 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:39,640 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:39,641 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:39,641 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:39,643 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:39,682 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:39,691 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:39,693 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:39,694 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:39,695 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:39,702 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:39,702 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:39,703 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:40,252 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:02:40,253 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:02:40,254 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:02:40,256 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:02:40,257 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:02:40,258 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:02:40,258 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:02:40,259 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:02:40,260 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:02:40,260 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:02:40,534 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:02:40,550 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.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:177) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:676) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:509) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1437) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1381) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 05:02:40,556 INFO L168 Benchmark]: Toolchain (without parser) took 2611.70 ms. Allocated memory was 104.9 MB in the beginning and 138.4 MB in the end (delta: 33.6 MB). Free memory was 76.7 MB in the beginning and 102.4 MB in the end (delta: -25.7 MB). Peak memory consumption was 41.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:02:40,557 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 104.9 MB. Free memory was 81.2 MB in the beginning and 81.1 MB in the end (delta: 57.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:02:40,558 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2601.33 ms. Allocated memory was 104.9 MB in the beginning and 138.4 MB in the end (delta: 33.6 MB). Free memory was 76.7 MB in the beginning and 102.4 MB in the end (delta: -25.7 MB). Peak memory consumption was 41.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:02:40,561 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 104.9 MB. Free memory was 81.2 MB in the beginning and 81.1 MB in the end (delta: 57.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2601.33 ms. Allocated memory was 104.9 MB in the beginning and 138.4 MB in the end (delta: 33.6 MB). Free memory was 76.7 MB in the beginning and 102.4 MB in the end (delta: -25.7 MB). Peak memory consumption was 41.1 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_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/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_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/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_fa8e522a-9515-4202-97ae-0ed3f051e187/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 b875da017a84450a4103e052cdea13d2bfe14ebd5ef6946815ef19c566574bb1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:02:42,613 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:02:42,615 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:02:42,647 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:02:42,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:02:42,649 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:02:42,651 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:02:42,653 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:02:42,656 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:02:42,657 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:02:42,658 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:02:42,659 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:02:42,660 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:02:42,661 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:02:42,663 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:02:42,664 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:02:42,665 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:02:42,666 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:02:42,669 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:02:42,672 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:02:42,674 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:02:42,675 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:02:42,677 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:02:42,678 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:02:42,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:02:42,682 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:02:42,682 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:02:42,683 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:02:42,684 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:02:42,685 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:02:42,686 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:02:42,687 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:02:42,687 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:02:42,688 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:02:42,690 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:02:42,690 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:02:42,691 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:02:42,691 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:02:42,692 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:02:42,693 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:02:42,694 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:02:42,695 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 05:02:42,721 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:02:42,721 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:02:42,722 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:02:42,726 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:02:42,726 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:02:42,727 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:02:42,727 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:02:42,727 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:02:42,727 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:02:42,728 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:02:42,728 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:02:42,729 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:02:42,729 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:02:42,729 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:02:42,729 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:02:42,730 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:02:42,730 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:02:42,730 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:02:42,730 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:02:42,731 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:02:42,731 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:02:42,731 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:02:42,731 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:02:42,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:02:42,732 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:02:42,732 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:02:42,732 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:02:42,733 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:02:42,733 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:02:42,733 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:02:42,733 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:02:42,734 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:02:42,734 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_fa8e522a-9515-4202-97ae-0ed3f051e187/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b875da017a84450a4103e052cdea13d2bfe14ebd5ef6946815ef19c566574bb1 [2021-11-03 05:02:43,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:02:43,095 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:02:43,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:02:43,099 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:02:43,100 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:02:43,101 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i [2021-11-03 05:02:43,175 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/data/6d90c3a6c/62f8e70bb85d4bcfa72244dfdd18102a/FLAG4bbfbb3f2 [2021-11-03 05:02:44,094 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:02:44,096 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i [2021-11-03 05:02:44,140 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/data/6d90c3a6c/62f8e70bb85d4bcfa72244dfdd18102a/FLAG4bbfbb3f2 [2021-11-03 05:02:44,526 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/data/6d90c3a6c/62f8e70bb85d4bcfa72244dfdd18102a [2021-11-03 05:02:44,528 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:02:44,530 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:02:44,531 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:02:44,531 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:02:44,553 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:02:44,554 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:02:44" (1/1) ... [2021-11-03 05:02:44,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d249367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:02:44, skipping insertion in model container [2021-11-03 05:02:44,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:02:44" (1/1) ... [2021-11-03 05:02:44,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:02:44,685 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:02:44,972 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_fa8e522a-9515-4202-97ae-0ed3f051e187/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i[4493,4506] [2021-11-03 05:02:44,981 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_fa8e522a-9515-4202-97ae-0ed3f051e187/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i[4553,4566] [2021-11-03 05:02:45,019 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:02:45,032 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:02:46,173 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:46,174 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:46,174 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:46,175 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:46,176 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:46,192 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:46,192 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:46,194 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:46,195 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:46,197 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:46,198 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:46,199 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:46,200 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:46,687 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:02:46,688 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:02:46,689 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:02:46,691 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:02:46,693 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:02:46,694 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:02:46,694 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:02:46,695 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:02:46,696 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:02:46,697 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:02:46,925 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:02:47,376 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,378 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,409 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,410 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,417 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,418 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,444 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,445 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,446 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,447 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,447 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,448 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,448 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:02:47,527 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:02:47,627 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:02:47,630 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_fa8e522a-9515-4202-97ae-0ed3f051e187/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i[4493,4506] [2021-11-03 05:02:47,631 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_fa8e522a-9515-4202-97ae-0ed3f051e187/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i[4553,4566] [2021-11-03 05:02:47,632 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:02:47,633 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:02:47,663 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,663 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,664 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,664 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,665 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,671 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,671 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,672 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,672 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,673 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,678 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,679 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,679 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,719 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:02:47,720 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:02:47,721 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:02:47,723 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:02:47,723 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:02:47,724 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:02:47,724 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:02:47,725 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:02:47,725 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:02:47,726 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:02:47,778 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:02:47,917 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,918 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,930 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,932 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,935 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,936 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,950 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,951 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,952 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,953 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,953 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,954 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,955 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:47,980 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:02:48,042 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:02:48,070 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_fa8e522a-9515-4202-97ae-0ed3f051e187/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i[4493,4506] [2021-11-03 05:02:48,070 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_fa8e522a-9515-4202-97ae-0ed3f051e187/sv-benchmarks/c/aws-c-common/aws_hash_iter_begin_harness-1.i[4553,4566] [2021-11-03 05:02:48,072 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 05:02:48,072 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 05:02:48,099 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:48,100 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:48,100 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:48,100 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:48,101 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:48,106 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:48,107 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:48,107 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:48,108 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:48,109 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:48,109 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:48,109 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:48,110 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:48,137 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 05:02:48,138 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 05:02:48,138 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 05:02:48,139 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 05:02:48,140 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 05:02:48,140 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 05:02:48,140 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 05:02:48,141 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 05:02:48,141 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 05:02:48,141 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 05:02:48,160 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 05:02:48,277 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:48,278 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:48,291 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:48,292 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:48,296 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:48,296 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:48,310 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:48,311 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:48,312 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:48,312 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:48,312 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:48,313 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:48,313 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 05:02:48,335 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:02:48,771 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:02:48,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:02:48 WrapperNode [2021-11-03 05:02:48,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:02:48,790 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:02:48,791 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:02:48,791 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:02:48,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:02:48" (1/1) ... [2021-11-03 05:02:48,973 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:02:48" (1/1) ... [2021-11-03 05:02:49,091 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:02:49,092 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:02:49,092 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:02:49,092 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:02:49,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:02:48" (1/1) ... [2021-11-03 05:02:49,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:02:48" (1/1) ... [2021-11-03 05:02:49,124 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:02:48" (1/1) ... [2021-11-03 05:02:49,126 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:02:48" (1/1) ... [2021-11-03 05:02:49,204 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:02:48" (1/1) ... [2021-11-03 05:02:49,223 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:02:48" (1/1) ... [2021-11-03 05:02:49,249 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:02:48" (1/1) ... [2021-11-03 05:02:49,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:02:49,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:02:49,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:02:49,277 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:02:49,280 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:02:48" (1/1) ... [2021-11-03 05:02:49,287 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:02:49,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:02:49,310 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:02:49,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:02:49,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-03 05:02:49,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:02:49,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:02:49,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:02:49,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:02:49,370 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-03 05:02:49,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:02:49,370 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-03 05:02:49,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:02:49,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:02:49,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:02:49,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 05:02:49,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 05:02:49,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 05:02:49,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 05:02:49,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 05:02:49,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 05:02:49,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 05:02:49,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 05:02:49,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 05:03:05,355 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##150: assume !true; [2021-11-03 05:03:05,365 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:03:05,365 INFO L299 CfgBuilder]: Removed 157 assume(true) statements. [2021-11-03 05:03:05,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:03:05 BoogieIcfgContainer [2021-11-03 05:03:05,378 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:03:05,380 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:03:05,382 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:03:05,385 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:03:05,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:02:44" (1/3) ... [2021-11-03 05:03:05,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ba15231 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:03:05, skipping insertion in model container [2021-11-03 05:03:05,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:02:48" (2/3) ... [2021-11-03 05:03:05,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ba15231 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:03:05, skipping insertion in model container [2021-11-03 05:03:05,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:03:05" (3/3) ... [2021-11-03 05:03:05,391 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_iter_begin_harness-1.i [2021-11-03 05:03:05,397 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:03:05,398 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-03 05:03:05,464 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:03:05,468 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 05:03:05,468 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-03 05:03:05,488 INFO L276 IsEmpty]: Start isEmpty. Operand has 202 states, 195 states have (on average 1.4564102564102563) internal successors, (284), 201 states have internal predecessors, (284), 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 05:03:05,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-03 05:03:05,496 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:03:05,497 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:03:05,497 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:03:05,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:03:05,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1999182466, now seen corresponding path program 1 times [2021-11-03 05:03:05,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:03:05,525 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [395830303] [2021-11-03 05:03:05,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:03:05,526 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:03:05,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:03:05,529 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:03:05,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:03:09,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:03:09,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 1674 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 05:03:09,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:03:09,933 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 05:03:09,933 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:03:10,179 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 05:03:10,179 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:03:10,180 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [395830303] [2021-11-03 05:03:10,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [395830303] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:03:10,180 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:03:10,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 05:03:10,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194845292] [2021-11-03 05:03:10,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 05:03:10,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:03:10,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 05:03:10,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:03:10,208 INFO L87 Difference]: Start difference. First operand has 202 states, 195 states have (on average 1.4564102564102563) internal successors, (284), 201 states have internal predecessors, (284), 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 31.0) internal successors, (62), 2 states have internal predecessors, (62), 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 05:03:10,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:03:10,264 INFO L93 Difference]: Finished difference Result 399 states and 562 transitions. [2021-11-03 05:03:10,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 05:03:10,266 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 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 62 [2021-11-03 05:03:10,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:03:10,284 INFO L225 Difference]: With dead ends: 399 [2021-11-03 05:03:10,284 INFO L226 Difference]: Without dead ends: 195 [2021-11-03 05:03:10,289 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 122 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 05:03:10,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-11-03 05:03:10,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2021-11-03 05:03:10,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 189 states have (on average 1.3597883597883598) internal successors, (257), 194 states have internal predecessors, (257), 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 05:03:10,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 257 transitions. [2021-11-03 05:03:10,356 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 257 transitions. Word has length 62 [2021-11-03 05:03:10,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:03:10,356 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 257 transitions. [2021-11-03 05:03:10,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 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 05:03:10,357 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 257 transitions. [2021-11-03 05:03:10,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-03 05:03:10,362 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:03:10,362 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:03:10,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:03:10,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:03:10,579 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:03:10,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:03:10,579 INFO L85 PathProgramCache]: Analyzing trace with hash 312696489, now seen corresponding path program 1 times [2021-11-03 05:03:10,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:03:10,583 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [842765800] [2021-11-03 05:03:10,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:03:10,583 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:03:10,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:03:10,586 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:03:10,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:03:14,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:03:14,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:03:14,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:03:15,160 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 05:03:15,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:03:15,461 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 05:03:15,461 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:03:15,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [842765800] [2021-11-03 05:03:15,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [842765800] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:03:15,461 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:03:15,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 05:03:15,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630575192] [2021-11-03 05:03:15,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:03:15,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:03:15,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:03:15,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:03:15,465 INFO L87 Difference]: Start difference. First operand 195 states and 257 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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 05:03:15,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:03:15,805 INFO L93 Difference]: Finished difference Result 547 states and 727 transitions. [2021-11-03 05:03:15,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:03:15,806 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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 65 [2021-11-03 05:03:15,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:03:15,809 INFO L225 Difference]: With dead ends: 547 [2021-11-03 05:03:15,809 INFO L226 Difference]: Without dead ends: 374 [2021-11-03 05:03:15,811 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:03:15,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2021-11-03 05:03:15,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 201. [2021-11-03 05:03:15,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 195 states have (on average 1.3487179487179488) internal successors, (263), 200 states have internal predecessors, (263), 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 05:03:15,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 263 transitions. [2021-11-03 05:03:15,827 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 263 transitions. Word has length 65 [2021-11-03 05:03:15,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:03:15,827 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 263 transitions. [2021-11-03 05:03:15,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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 05:03:15,828 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 263 transitions. [2021-11-03 05:03:15,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-03 05:03:15,829 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:03:15,829 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:03:15,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:03:16,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:03:16,051 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:03:16,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:03:16,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1921794729, now seen corresponding path program 1 times [2021-11-03 05:03:16,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:03:16,055 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [539932262] [2021-11-03 05:03:16,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:03:16,055 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:03:16,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:03:16,057 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:03:16,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:03:19,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:03:20,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 1688 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:03:20,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:03:20,353 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 05:03:20,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:03:20,667 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 05:03:20,668 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:03:20,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [539932262] [2021-11-03 05:03:20,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [539932262] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:03:20,668 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:03:20,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-03 05:03:20,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406649670] [2021-11-03 05:03:20,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:03:20,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:03:20,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:03:20,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:03:20,670 INFO L87 Difference]: Start difference. First operand 201 states and 263 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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 05:03:20,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:03:20,980 INFO L93 Difference]: Finished difference Result 379 states and 499 transitions. [2021-11-03 05:03:20,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:03:20,981 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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 69 [2021-11-03 05:03:20,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:03:20,984 INFO L225 Difference]: With dead ends: 379 [2021-11-03 05:03:20,985 INFO L226 Difference]: Without dead ends: 201 [2021-11-03 05:03:20,987 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-03 05:03:20,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-11-03 05:03:20,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 195. [2021-11-03 05:03:20,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 189 states have (on average 1.3386243386243386) internal successors, (253), 194 states have internal predecessors, (253), 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 05:03:20,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 253 transitions. [2021-11-03 05:03:20,997 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 253 transitions. Word has length 69 [2021-11-03 05:03:20,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:03:20,997 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 253 transitions. [2021-11-03 05:03:20,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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 05:03:20,997 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 253 transitions. [2021-11-03 05:03:20,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-03 05:03:20,999 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:03:20,999 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:03:21,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:03:21,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:03:21,215 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:03:21,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:03:21,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1564681509, now seen corresponding path program 1 times [2021-11-03 05:03:21,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:03:21,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1592949560] [2021-11-03 05:03:21,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:03:21,218 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:03:21,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:03:21,219 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:03:21,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:03:25,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:03:25,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 1754 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-03 05:03:25,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:03:26,217 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 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-03 05:03:26,585 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 05:03:26,585 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:03:26,835 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 30 treesize of output 26 [2021-11-03 05:03:27,247 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 05:03:27,248 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:03:27,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1592949560] [2021-11-03 05:03:27,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1592949560] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:03:27,248 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:03:27,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-11-03 05:03:27,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470405829] [2021-11-03 05:03:27,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 05:03:27,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:03:27,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 05:03:27,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-03 05:03:27,250 INFO L87 Difference]: Start difference. First operand 195 states and 253 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 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 05:03:38,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:03:38,272 INFO L93 Difference]: Finished difference Result 399 states and 520 transitions. [2021-11-03 05:03:38,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 05:03:38,275 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 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 75 [2021-11-03 05:03:38,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:03:38,277 INFO L225 Difference]: With dead ends: 399 [2021-11-03 05:03:38,277 INFO L226 Difference]: Without dead ends: 239 [2021-11-03 05:03:38,277 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-11-03 05:03:38,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2021-11-03 05:03:38,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 216. [2021-11-03 05:03:38,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 210 states have (on average 1.319047619047619) internal successors, (277), 215 states have internal predecessors, (277), 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 05:03:38,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 277 transitions. [2021-11-03 05:03:38,293 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 277 transitions. Word has length 75 [2021-11-03 05:03:38,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:03:38,293 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 277 transitions. [2021-11-03 05:03:38,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 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 05:03:38,294 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 277 transitions. [2021-11-03 05:03:38,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-03 05:03:38,295 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:03:38,296 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:03:38,344 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-03 05:03:38,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:03:38,510 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:03:38,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:03:38,511 INFO L85 PathProgramCache]: Analyzing trace with hash -2045761767, now seen corresponding path program 1 times [2021-11-03 05:03:38,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:03:38,513 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1904256342] [2021-11-03 05:03:38,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:03:38,514 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:03:38,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:03:38,518 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:03:38,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 05:03:42,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:03:42,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 1751 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:03:42,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:03:43,091 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 05:03:43,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:03:43,470 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 05:03:43,470 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:03:43,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1904256342] [2021-11-03 05:03:43,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1904256342] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:03:43,471 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:03:43,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 05:03:43,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718029952] [2021-11-03 05:03:43,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:03:43,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:03:43,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:03:43,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:03:43,472 INFO L87 Difference]: Start difference. First operand 216 states and 277 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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 05:03:43,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:03:43,732 INFO L93 Difference]: Finished difference Result 398 states and 516 transitions. [2021-11-03 05:03:43,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:03:43,735 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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 75 [2021-11-03 05:03:43,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:03:43,737 INFO L225 Difference]: With dead ends: 398 [2021-11-03 05:03:43,737 INFO L226 Difference]: Without dead ends: 214 [2021-11-03 05:03:43,737 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 146 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 05:03:43,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-11-03 05:03:43,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2021-11-03 05:03:43,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 208 states have (on average 1.2980769230769231) internal successors, (270), 213 states have internal predecessors, (270), 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 05:03:43,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 270 transitions. [2021-11-03 05:03:43,751 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 270 transitions. Word has length 75 [2021-11-03 05:03:43,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:03:43,752 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 270 transitions. [2021-11-03 05:03:43,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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 05:03:43,752 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 270 transitions. [2021-11-03 05:03:43,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-03 05:03:43,760 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:03:43,760 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:03:43,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 05:03:43,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:03:43,966 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:03:43,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:03:43,967 INFO L85 PathProgramCache]: Analyzing trace with hash -601323936, now seen corresponding path program 1 times [2021-11-03 05:03:43,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:03:43,969 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1649100365] [2021-11-03 05:03:43,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:03:43,970 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:03:43,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:03:43,970 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:03:43,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 05:03:48,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:03:48,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 1765 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-03 05:03:48,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:03:48,743 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 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-03 05:03:48,842 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 16 treesize of output 8 [2021-11-03 05:03:49,031 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 05:03:49,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:03:49,254 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 30 treesize of output 26 [2021-11-03 05:03:49,657 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 05:03:49,657 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:03:49,657 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1649100365] [2021-11-03 05:03:49,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1649100365] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:03:49,657 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:03:49,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-03 05:03:49,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940618347] [2021-11-03 05:03:49,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 05:03:49,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:03:49,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 05:03:49,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:03:49,659 INFO L87 Difference]: Start difference. First operand 214 states and 270 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 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 05:03:59,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:03:59,409 INFO L93 Difference]: Finished difference Result 519 states and 671 transitions. [2021-11-03 05:03:59,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 05:03:59,412 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 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 77 [2021-11-03 05:03:59,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:03:59,414 INFO L225 Difference]: With dead ends: 519 [2021-11-03 05:03:59,414 INFO L226 Difference]: Without dead ends: 339 [2021-11-03 05:03:59,414 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-03 05:03:59,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2021-11-03 05:03:59,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 215. [2021-11-03 05:03:59,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 209 states have (on average 1.291866028708134) internal successors, (270), 214 states have internal predecessors, (270), 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 05:03:59,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 270 transitions. [2021-11-03 05:03:59,426 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 270 transitions. Word has length 77 [2021-11-03 05:03:59,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:03:59,426 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 270 transitions. [2021-11-03 05:03:59,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 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 05:03:59,427 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 270 transitions. [2021-11-03 05:03:59,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-03 05:03:59,428 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:03:59,428 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:03:59,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 05:03:59,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:03:59,639 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:03:59,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:03:59,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1211223159, now seen corresponding path program 1 times [2021-11-03 05:03:59,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:03:59,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [837457074] [2021-11-03 05:03:59,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:03:59,642 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:03:59,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:03:59,643 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:03:59,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 05:04:03,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:04:04,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 1778 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 05:04:04,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:04:04,428 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 05:04:04,429 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:04:04,599 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 05:04:04,599 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:04:04,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [837457074] [2021-11-03 05:04:04,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [837457074] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:04:04,600 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:04:04,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 05:04:04,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864611725] [2021-11-03 05:04:04,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:04:04,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:04:04,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:04:04,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:04:04,602 INFO L87 Difference]: Start difference. First operand 215 states and 270 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 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 05:04:05,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:04:05,014 INFO L93 Difference]: Finished difference Result 421 states and 549 transitions. [2021-11-03 05:04:05,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:04:05,015 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 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 78 [2021-11-03 05:04:05,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:04:05,018 INFO L225 Difference]: With dead ends: 421 [2021-11-03 05:04:05,018 INFO L226 Difference]: Without dead ends: 291 [2021-11-03 05:04:05,018 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 05:04:05,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2021-11-03 05:04:05,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 215. [2021-11-03 05:04:05,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 209 states have (on average 1.2822966507177034) internal successors, (268), 214 states have internal predecessors, (268), 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 05:04:05,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 268 transitions. [2021-11-03 05:04:05,033 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 268 transitions. Word has length 78 [2021-11-03 05:04:05,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:04:05,034 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 268 transitions. [2021-11-03 05:04:05,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 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 05:04:05,035 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 268 transitions. [2021-11-03 05:04:05,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-03 05:04:05,035 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:04:05,036 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:04:05,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 05:04:05,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:04:05,247 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:04:05,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:04:05,247 INFO L85 PathProgramCache]: Analyzing trace with hash -443995649, now seen corresponding path program 1 times [2021-11-03 05:04:05,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:04:05,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1912431023] [2021-11-03 05:04:05,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:04:05,250 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:04:05,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:04:05,250 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:04:05,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 05:04:09,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:04:09,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 1800 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 05:04:09,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:04:10,189 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 32 treesize of output 24 [2021-11-03 05:04:10,195 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 21 treesize of output 13 [2021-11-03 05:04:10,365 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 05:04:10,365 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:04:10,731 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 05:04:10,731 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:04:10,732 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1912431023] [2021-11-03 05:04:10,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1912431023] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:04:10,732 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:04:10,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-03 05:04:10,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047397615] [2021-11-03 05:04:10,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 05:04:10,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:04:10,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 05:04:10,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:04:10,734 INFO L87 Difference]: Start difference. First operand 215 states and 268 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 05:04:26,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:04:26,035 INFO L93 Difference]: Finished difference Result 374 states and 479 transitions. [2021-11-03 05:04:26,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 05:04:26,038 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 82 [2021-11-03 05:04:26,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:04:26,040 INFO L225 Difference]: With dead ends: 374 [2021-11-03 05:04:26,040 INFO L226 Difference]: Without dead ends: 246 [2021-11-03 05:04:26,040 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-11-03 05:04:26,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2021-11-03 05:04:26,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 195. [2021-11-03 05:04:26,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 189 states have (on average 1.2698412698412698) internal successors, (240), 194 states have internal predecessors, (240), 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 05:04:26,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 240 transitions. [2021-11-03 05:04:26,053 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 240 transitions. Word has length 82 [2021-11-03 05:04:26,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:04:26,054 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 240 transitions. [2021-11-03 05:04:26,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 05:04:26,054 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 240 transitions. [2021-11-03 05:04:26,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-03 05:04:26,055 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:04:26,055 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:04:26,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-03 05:04:26,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:04:26,263 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:04:26,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:04:26,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1981477469, now seen corresponding path program 1 times [2021-11-03 05:04:26,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:04:26,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1588166919] [2021-11-03 05:04:26,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:04:26,268 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:04:26,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:04:26,269 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:04:26,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 05:04:30,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:04:30,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 1826 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:04:30,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:04:31,214 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 05:04:31,214 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:04:31,408 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 05:04:31,408 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:04:31,408 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1588166919] [2021-11-03 05:04:31,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1588166919] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:04:31,408 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:04:31,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:04:31,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634226905] [2021-11-03 05:04:31,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:04:31,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:04:31,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:04:31,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:04:31,409 INFO L87 Difference]: Start difference. First operand 195 states and 240 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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 05:04:31,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:04:31,458 INFO L93 Difference]: Finished difference Result 318 states and 404 transitions. [2021-11-03 05:04:31,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:04:31,459 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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 84 [2021-11-03 05:04:31,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:04:31,461 INFO L225 Difference]: With dead ends: 318 [2021-11-03 05:04:31,461 INFO L226 Difference]: Without dead ends: 197 [2021-11-03 05:04:31,461 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:04:31,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-11-03 05:04:31,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2021-11-03 05:04:31,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 191 states have (on average 1.2670157068062826) internal successors, (242), 196 states have internal predecessors, (242), 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 05:04:31,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 242 transitions. [2021-11-03 05:04:31,475 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 242 transitions. Word has length 84 [2021-11-03 05:04:31,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:04:31,475 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 242 transitions. [2021-11-03 05:04:31,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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 05:04:31,476 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 242 transitions. [2021-11-03 05:04:31,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-03 05:04:31,476 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:04:31,477 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:04:31,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-03 05:04:31,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:04:31,699 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:04:31,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:04:31,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1445575357, now seen corresponding path program 1 times [2021-11-03 05:04:31,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:04:31,702 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1180810767] [2021-11-03 05:04:31,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:04:31,702 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:04:31,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:04:31,703 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:04:31,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 05:04:36,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:04:36,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 1836 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:04:36,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:04:36,777 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:04:36,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:04:37,222 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:04:37,222 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:04:37,222 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1180810767] [2021-11-03 05:04:37,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1180810767] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:04:37,222 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1717449184] [2021-11-03 05:04:37,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:04:37,223 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 05:04:37,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 05:04:37,230 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 05:04:37,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-11-03 05:04:39,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:04:39,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 1836 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 05:04:39,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:04:39,702 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 05:04:39,702 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:04:39,945 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 05:04:39,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1717449184] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:04:39,946 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-03 05:04:39,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [5, 5] total 11 [2021-11-03 05:04:39,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272678202] [2021-11-03 05:04:39,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:04:39,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:04:39,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:04:39,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-11-03 05:04:39,947 INFO L87 Difference]: Start difference. First operand 197 states and 242 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 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 05:04:43,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:04:43,312 INFO L93 Difference]: Finished difference Result 280 states and 350 transitions. [2021-11-03 05:04:43,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 05:04:43,316 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 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 86 [2021-11-03 05:04:43,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:04:43,317 INFO L225 Difference]: With dead ends: 280 [2021-11-03 05:04:43,317 INFO L226 Difference]: Without dead ends: 198 [2021-11-03 05:04:43,317 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-11-03 05:04:43,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-11-03 05:04:43,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 197. [2021-11-03 05:04:43,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 191 states have (on average 1.256544502617801) internal successors, (240), 196 states have internal predecessors, (240), 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 05:04:43,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 240 transitions. [2021-11-03 05:04:43,332 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 240 transitions. Word has length 86 [2021-11-03 05:04:43,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:04:43,332 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 240 transitions. [2021-11-03 05:04:43,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 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 05:04:43,332 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 240 transitions. [2021-11-03 05:04:43,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-03 05:04:43,333 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:04:43,333 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:04:43,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-03 05:04:43,549 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2021-11-03 05:04:43,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt [2021-11-03 05:04:43,743 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:04:43,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:04:43,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1862922237, now seen corresponding path program 1 times [2021-11-03 05:04:43,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:04:43,746 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [450261336] [2021-11-03 05:04:43,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:04:43,746 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:04:43,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:04:43,747 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:04:43,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-03 05:04:48,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:04:48,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 1839 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:04:48,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:04:48,969 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:04:48,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:04:49,423 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:04:49,424 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:04:49,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [450261336] [2021-11-03 05:04:49,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [450261336] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:04:49,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1380542490] [2021-11-03 05:04:49,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:04:49,424 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 05:04:49,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 05:04:49,425 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 05:04:49,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-11-03 05:04:54,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:04:54,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 1839 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:04:54,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:04:54,573 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:04:54,573 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:04:54,776 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:04:54,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1380542490] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:04:54,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624745401] [2021-11-03 05:04:54,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:04:54,777 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:04:54,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:04:54,779 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 05:04:54,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-03 05:04:56,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:04:57,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 1839 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:04:57,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:04:57,317 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:04:57,317 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:04:57,561 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:04:57,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624745401] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:04:57,561 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-03 05:04:57,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 8 [2021-11-03 05:04:57,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422392426] [2021-11-03 05:04:57,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 05:04:57,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:04:57,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 05:04:57,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 05:04:57,563 INFO L87 Difference]: Start difference. First operand 197 states and 240 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 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 05:04:57,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:04:57,931 INFO L93 Difference]: Finished difference Result 322 states and 406 transitions. [2021-11-03 05:04:57,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 05:04:57,932 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 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 87 [2021-11-03 05:04:57,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:04:57,934 INFO L225 Difference]: With dead ends: 322 [2021-11-03 05:04:57,934 INFO L226 Difference]: Without dead ends: 201 [2021-11-03 05:04:57,935 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 510 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-11-03 05:04:57,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-11-03 05:04:57,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2021-11-03 05:04:57,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 195 states have (on average 1.2512820512820513) internal successors, (244), 200 states have internal predecessors, (244), 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 05:04:57,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 244 transitions. [2021-11-03 05:04:57,949 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 244 transitions. Word has length 87 [2021-11-03 05:04:57,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:04:57,949 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 244 transitions. [2021-11-03 05:04:57,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 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 05:04:57,950 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 244 transitions. [2021-11-03 05:04:57,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-03 05:04:57,951 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:04:57,951 INFO L513 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:04:57,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2021-11-03 05:04:58,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-11-03 05:04:58,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-03 05:04:58,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:04:58,563 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:04:58,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:04:58,563 INFO L85 PathProgramCache]: Analyzing trace with hash 756105021, now seen corresponding path program 2 times [2021-11-03 05:04:58,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:04:58,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [644373416] [2021-11-03 05:04:58,566 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 05:04:58,566 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:04:58,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:04:58,567 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:04:58,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8e522a-9515-4202-97ae-0ed3f051e187/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-03 05:06:45,484 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-03 05:06:45,484 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 05:06:46,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 1829 conjuncts, 62 conjunts are in the unsatisfiable core [2021-11-03 05:06:46,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:06:48,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:48,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:48,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:48,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:48,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:48,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:48,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:48,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:48,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:48,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:48,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:48,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:48,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:48,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:48,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:48,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:48,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:48,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:48,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:48,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:48,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:48,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:48,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:48,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:48,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:48,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:48,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:48,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:48,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 109 [2021-11-03 05:06:50,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,394 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:06:50,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,435 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:06:50,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,442 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:06:50,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,467 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:06:50,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,489 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:06:50,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,512 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:06:50,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:06:50,520 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:06:50,904 INFO L354 Elim1Store]: treesize reduction 232, result has 27.7 percent of original size [2021-11-03 05:06:50,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 48 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 533 treesize of output 357 [2021-11-03 05:06:52,470 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 05:06:52,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 507 treesize of output 411 [2021-11-03 05:06:52,916 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-03 05:06:52,916 INFO L328 TraceCheckSpWp]: Computing backward predicates...