./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/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_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/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_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/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 a871e941a14cf19147765419aa3746af2f9add859ed1f61f31f704f97208fdb0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:42:06,092 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:42:06,094 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:42:06,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:42:06,149 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:42:06,151 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:42:06,153 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:42:06,155 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:42:06,158 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:42:06,160 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:42:06,161 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:42:06,163 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:42:06,163 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:42:06,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:42:06,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:42:06,168 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:42:06,170 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:42:06,171 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:42:06,173 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:42:06,176 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:42:06,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:42:06,180 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:42:06,182 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:42:06,183 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:42:06,187 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:42:06,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:42:06,188 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:42:06,189 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:42:06,190 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:42:06,191 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:42:06,192 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:42:06,193 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:42:06,193 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:42:06,194 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:42:06,196 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:42:06,196 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:42:06,197 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:42:06,198 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:42:06,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:42:06,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:42:06,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:42:06,203 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 03:42:06,249 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:42:06,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:42:06,251 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:42:06,251 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:42:06,252 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:42:06,252 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:42:06,252 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 03:42:06,252 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:42:06,253 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:42:06,253 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 03:42:06,254 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 03:42:06,254 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:42:06,254 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 03:42:06,255 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 03:42:06,255 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 03:42:06,256 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:42:06,256 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 03:42:06,256 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:42:06,257 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:42:06,257 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:42:06,257 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:42:06,257 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:42:06,257 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:42:06,258 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:42:06,258 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:42:06,258 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:42:06,258 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:42:06,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:42:06,259 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:42:06,260 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:42:06,261 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:42:06,261 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 03:42:06,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 03:42:06,262 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:42:06,262 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:42:06,262 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:42:06,262 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_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a871e941a14cf19147765419aa3746af2f9add859ed1f61f31f704f97208fdb0 [2021-11-03 03:42:06,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:42:06,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:42:06,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:42:06,550 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:42:06,551 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:42:06,552 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i [2021-11-03 03:42:06,638 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/data/27a7b5ab9/cdb739f06a4148aeb076c49b0246dde5/FLAG5a85c9c9c [2021-11-03 03:42:07,576 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:42:07,578 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i [2021-11-03 03:42:07,624 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/data/27a7b5ab9/cdb739f06a4148aeb076c49b0246dde5/FLAG5a85c9c9c [2021-11-03 03:42:08,041 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/data/27a7b5ab9/cdb739f06a4148aeb076c49b0246dde5 [2021-11-03 03:42:08,044 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:42:08,046 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:42:08,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:42:08,049 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:42:08,052 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:42:08,053 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:42:08" (1/1) ... [2021-11-03 03:42:08,054 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69341ec1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:42:08, skipping insertion in model container [2021-11-03 03:42:08,055 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:42:08" (1/1) ... [2021-11-03 03:42:08,062 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:42:08,199 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:42:08,534 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_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4495,4508] [2021-11-03 03:42:08,543 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_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4555,4568] [2021-11-03 03:42:08,573 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:42:08,581 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:42:09,781 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:09,782 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:09,786 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:09,787 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:09,790 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:09,804 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:09,805 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:09,807 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:09,808 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:09,809 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:09,811 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:09,811 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:09,812 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:10,294 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:42:10,295 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:42:10,297 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:42:10,298 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:42:10,299 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:42:10,300 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:42:10,301 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:42:10,301 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:42:10,302 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:42:10,303 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:42:10,501 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:42:10,523 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 03:42:10,543 INFO L168 Benchmark]: Toolchain (without parser) took 2482.63 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 64.2 MB in the beginning and 59.9 MB in the end (delta: 4.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2021-11-03 03:42:10,544 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 104.9 MB. Free memory is still 58.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:42:10,545 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2478.64 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 64.2 MB in the beginning and 59.9 MB in the end (delta: 4.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2021-11-03 03:42:10,547 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 104.9 MB. Free memory is still 58.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2478.64 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 64.2 MB in the beginning and 59.9 MB in the end (delta: 4.3 MB). Peak memory consumption was 27.3 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_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/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_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/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_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/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 a871e941a14cf19147765419aa3746af2f9add859ed1f61f31f704f97208fdb0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:42:12,837 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:42:12,840 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:42:12,892 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:42:12,892 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:42:12,897 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:42:12,899 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:42:12,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:42:12,907 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:42:12,915 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:42:12,916 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:42:12,918 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:42:12,919 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:42:12,921 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:42:12,923 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:42:12,928 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:42:12,929 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:42:12,930 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:42:12,933 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:42:12,941 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:42:12,943 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:42:12,945 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:42:12,948 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:42:12,950 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:42:12,958 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:42:12,959 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:42:12,959 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:42:12,961 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:42:12,962 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:42:12,963 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:42:12,964 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:42:12,965 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:42:12,967 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:42:12,968 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:42:12,969 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:42:12,970 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:42:12,971 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:42:12,971 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:42:12,971 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:42:12,973 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:42:12,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:42:12,975 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 03:42:13,016 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:42:13,017 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:42:13,018 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:42:13,018 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:42:13,019 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:42:13,019 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:42:13,019 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:42:13,020 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:42:13,020 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:42:13,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:42:13,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:42:13,023 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:42:13,023 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:42:13,023 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:42:13,023 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:42:13,024 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 03:42:13,024 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 03:42:13,024 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:42:13,024 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:42:13,025 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:42:13,025 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:42:13,025 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 03:42:13,025 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:42:13,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:42:13,026 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:42:13,026 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:42:13,026 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:42:13,027 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 03:42:13,027 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 03:42:13,027 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:42:13,027 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:42:13,028 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:42:13,028 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_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a871e941a14cf19147765419aa3746af2f9add859ed1f61f31f704f97208fdb0 [2021-11-03 03:42:13,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:42:13,468 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:42:13,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:42:13,472 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:42:13,473 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:42:13,474 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i [2021-11-03 03:42:13,543 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/data/a75182e39/514ee38f15d24ab899a1798c716be001/FLAGd957a68fb [2021-11-03 03:42:14,557 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:42:14,559 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i [2021-11-03 03:42:14,615 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/data/a75182e39/514ee38f15d24ab899a1798c716be001/FLAGd957a68fb [2021-11-03 03:42:14,941 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/data/a75182e39/514ee38f15d24ab899a1798c716be001 [2021-11-03 03:42:14,944 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:42:14,947 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:42:14,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:42:14,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:42:14,955 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:42:14,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:42:14" (1/1) ... [2021-11-03 03:42:14,957 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@731798d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:42:14, skipping insertion in model container [2021-11-03 03:42:14,958 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:42:14" (1/1) ... [2021-11-03 03:42:14,966 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:42:15,125 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:42:15,505 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_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4495,4508] [2021-11-03 03:42:15,512 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_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4555,4568] [2021-11-03 03:42:15,540 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:42:15,547 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:42:16,677 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:16,678 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:16,678 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:16,679 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:16,680 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:16,697 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:16,698 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:16,700 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:16,700 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:16,702 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:16,704 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:16,704 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:16,705 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:17,404 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:42:17,411 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:42:17,414 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:42:17,415 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:42:17,417 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:42:17,418 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:42:17,419 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:42:17,432 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:42:17,433 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:42:17,434 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:42:17,704 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:42:18,148 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,150 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,174 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,175 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,182 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,183 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,205 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,206 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,206 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,210 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,211 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,211 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,212 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:42:18,348 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 03:42:18,414 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:42:18,419 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_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4495,4508] [2021-11-03 03:42:18,420 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_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4555,4568] [2021-11-03 03:42:18,422 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:42:18,423 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:42:18,476 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,480 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,480 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,481 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,481 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,491 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,491 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,492 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,493 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,493 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,494 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,494 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,495 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,531 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:42:18,532 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:42:18,533 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:42:18,533 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:42:18,534 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:42:18,535 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:42:18,535 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:42:18,536 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:42:18,537 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:42:18,537 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:42:18,566 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:42:18,711 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,712 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,719 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,720 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,723 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,724 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,737 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,738 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,760 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,760 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,761 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,761 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,762 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,787 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:42:18,831 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 03:42:18,857 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_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4495,4508] [2021-11-03 03:42:18,858 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_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/sv-benchmarks/c/aws-c-common/aws_hash_table_create_harness.i[4555,4568] [2021-11-03 03:42:18,860 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 03:42:18,861 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 03:42:18,901 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,902 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,902 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,903 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,904 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,912 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,913 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,914 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,915 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,916 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,916 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,917 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,918 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:18,955 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 03:42:18,956 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 03:42:18,958 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 03:42:18,959 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 03:42:18,959 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 03:42:18,960 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 03:42:18,960 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 03:42:18,961 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 03:42:18,962 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 03:42:18,963 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 03:42:19,006 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 03:42:19,092 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:19,093 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:19,137 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:19,138 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:19,140 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:19,141 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:19,148 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:19,149 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:19,149 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:19,151 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:19,151 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:19,152 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:19,152 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 03:42:19,179 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:42:19,610 INFO L208 MainTranslator]: Completed translation [2021-11-03 03:42:19,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:42:19 WrapperNode [2021-11-03 03:42:19,610 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:42:19,612 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 03:42:19,612 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 03:42:19,612 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 03:42:19,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:42:19" (1/1) ... [2021-11-03 03:42:19,755 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:42:19" (1/1) ... [2021-11-03 03:42:19,905 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 03:42:19,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 03:42:19,907 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 03:42:19,907 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 03:42:19,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:42:19" (1/1) ... [2021-11-03 03:42:19,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:42:19" (1/1) ... [2021-11-03 03:42:19,953 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:42:19" (1/1) ... [2021-11-03 03:42:19,954 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:42:19" (1/1) ... [2021-11-03 03:42:20,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:42:19" (1/1) ... [2021-11-03 03:42:20,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:42:19" (1/1) ... [2021-11-03 03:42:20,084 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:42:19" (1/1) ... [2021-11-03 03:42:20,103 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 03:42:20,104 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 03:42:20,104 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 03:42:20,104 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 03:42:20,105 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:42:19" (1/1) ... [2021-11-03 03:42:20,111 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:42:20,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:42:20,133 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 03:42:20,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 03:42:20,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-03 03:42:20,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 03:42:20,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 03:42:20,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 03:42:20,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 03:42:20,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 03:42:20,190 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-03 03:42:20,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 03:42:20,191 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-03 03:42:20,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 03:42:20,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-03 03:42:20,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 03:42:20,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 03:42:20,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 03:42:20,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 03:42:20,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 03:42:20,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 03:42:20,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-03 03:42:20,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 03:42:20,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 03:42:20,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 03:42:20,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2021-11-03 03:42:52,938 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##262: assume !true; [2021-11-03 03:42:52,938 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##287: assume !true; [2021-11-03 03:42:52,938 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##236: assume !true; [2021-11-03 03:42:52,938 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##313: assume !true; [2021-11-03 03:42:52,939 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##96: assume !true; [2021-11-03 03:42:52,939 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !true; [2021-11-03 03:42:52,939 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##142: assume !true; [2021-11-03 03:42:52,954 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 03:42:52,955 INFO L299 CfgBuilder]: Removed 368 assume(true) statements. [2021-11-03 03:42:52,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:42:52 BoogieIcfgContainer [2021-11-03 03:42:52,959 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 03:42:52,961 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 03:42:52,961 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 03:42:52,964 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 03:42:52,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:42:14" (1/3) ... [2021-11-03 03:42:52,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e94bc98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:42:52, skipping insertion in model container [2021-11-03 03:42:52,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:42:19" (2/3) ... [2021-11-03 03:42:52,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e94bc98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:42:52, skipping insertion in model container [2021-11-03 03:42:52,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:42:52" (3/3) ... [2021-11-03 03:42:52,968 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_table_create_harness.i [2021-11-03 03:42:52,974 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 03:42:52,974 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2021-11-03 03:42:53,029 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 03:42:53,034 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 03:42:53,035 INFO L340 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2021-11-03 03:42:53,062 INFO L276 IsEmpty]: Start isEmpty. Operand has 386 states, 368 states have (on average 1.4375) internal successors, (529), 385 states have internal predecessors, (529), 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 03:42:53,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-03 03:42:53,069 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:42:53,069 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] [2021-11-03 03:42:53,070 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-03 03:42:53,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:42:53,076 INFO L85 PathProgramCache]: Analyzing trace with hash -714573874, now seen corresponding path program 1 times [2021-11-03 03:42:53,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:42:53,135 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [532417041] [2021-11-03 03:42:53,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:42:53,136 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:42:53,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:42:53,139 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:42:53,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 03:42:57,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:42:57,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 1647 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 03:42:57,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:42:57,920 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 03:42:57,920 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:42:58,184 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 03:42:58,185 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:42:58,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [532417041] [2021-11-03 03:42:58,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [532417041] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:42:58,187 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:42:58,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 03:42:58,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997299772] [2021-11-03 03:42:58,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 03:42:58,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:42:58,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 03:42:58,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:42:58,212 INFO L87 Difference]: Start difference. First operand has 386 states, 368 states have (on average 1.4375) internal successors, (529), 385 states have internal predecessors, (529), 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 23.5) internal successors, (47), 2 states have internal predecessors, (47), 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 03:42:58,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:42:58,310 INFO L93 Difference]: Finished difference Result 766 states and 1051 transitions. [2021-11-03 03:42:58,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 03:42:58,311 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 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 47 [2021-11-03 03:42:58,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:42:58,331 INFO L225 Difference]: With dead ends: 766 [2021-11-03 03:42:58,331 INFO L226 Difference]: Without dead ends: 377 [2021-11-03 03:42:58,342 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 92 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 03:42:58,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2021-11-03 03:42:58,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2021-11-03 03:42:58,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 360 states have (on average 1.2805555555555554) internal successors, (461), 376 states have internal predecessors, (461), 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 03:42:58,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 461 transitions. [2021-11-03 03:42:58,419 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 461 transitions. Word has length 47 [2021-11-03 03:42:58,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:42:58,419 INFO L470 AbstractCegarLoop]: Abstraction has 377 states and 461 transitions. [2021-11-03 03:42:58,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 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 03:42:58,420 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 461 transitions. [2021-11-03 03:42:58,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-03 03:42:58,422 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:42:58,422 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] [2021-11-03 03:42:58,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 03:42:58,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:42:58,646 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-03 03:42:58,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:42:58,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1373789074, now seen corresponding path program 1 times [2021-11-03 03:42:58,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:42:58,655 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1451136023] [2021-11-03 03:42:58,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:42:58,656 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:42:58,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:42:58,657 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:42:58,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 03:43:03,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:43:03,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 1647 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 03:43:03,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:43:03,550 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 03:43:03,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:43:03,793 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 03:43:03,793 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:43:03,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1451136023] [2021-11-03 03:43:03,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1451136023] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:43:03,794 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:43:03,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 03:43:03,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804416814] [2021-11-03 03:43:03,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 03:43:03,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:43:03,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 03:43:03,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:43:03,799 INFO L87 Difference]: Start difference. First operand 377 states and 461 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 03:43:12,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:43:12,786 INFO L93 Difference]: Finished difference Result 1081 states and 1324 transitions. [2021-11-03 03:43:12,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 03:43:12,787 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 47 [2021-11-03 03:43:12,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:43:12,802 INFO L225 Difference]: With dead ends: 1081 [2021-11-03 03:43:12,803 INFO L226 Difference]: Without dead ends: 726 [2021-11-03 03:43:12,804 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 03:43:12,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2021-11-03 03:43:12,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 383. [2021-11-03 03:43:12,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 366 states have (on average 1.2759562841530054) internal successors, (467), 382 states have internal predecessors, (467), 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 03:43:12,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 467 transitions. [2021-11-03 03:43:12,836 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 467 transitions. Word has length 47 [2021-11-03 03:43:12,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:43:12,836 INFO L470 AbstractCegarLoop]: Abstraction has 383 states and 467 transitions. [2021-11-03 03:43:12,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 03:43:12,837 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 467 transitions. [2021-11-03 03:43:12,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-03 03:43:12,839 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:43:12,839 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] [2021-11-03 03:43:12,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 03:43:13,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:43:13,064 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-03 03:43:13,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:43:13,065 INFO L85 PathProgramCache]: Analyzing trace with hash 882870646, now seen corresponding path program 1 times [2021-11-03 03:43:13,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:43:13,072 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [16339379] [2021-11-03 03:43:13,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:43:13,073 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:43:13,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:43:13,075 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:43:13,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 03:43:17,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:43:17,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 1650 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 03:43:17,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:43:17,578 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 03:43:17,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:43:17,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:43:17,890 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:43:17,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [16339379] [2021-11-03 03:43:17,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [16339379] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:43:17,891 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:43:17,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-03 03:43:17,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517164421] [2021-11-03 03:43:17,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 03:43:17,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:43:17,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 03:43:17,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:43:17,893 INFO L87 Difference]: Start difference. First operand 383 states and 467 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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 03:43:18,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:43:18,357 INFO L93 Difference]: Finished difference Result 903 states and 1101 transitions. [2021-11-03 03:43:18,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 03:43:18,358 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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 49 [2021-11-03 03:43:18,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:43:18,362 INFO L225 Difference]: With dead ends: 903 [2021-11-03 03:43:18,362 INFO L226 Difference]: Without dead ends: 545 [2021-11-03 03:43:18,363 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 93 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 03:43:18,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2021-11-03 03:43:18,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 380. [2021-11-03 03:43:18,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 363 states have (on average 1.2727272727272727) internal successors, (462), 379 states have internal predecessors, (462), 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 03:43:18,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 462 transitions. [2021-11-03 03:43:18,381 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 462 transitions. Word has length 49 [2021-11-03 03:43:18,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:43:18,381 INFO L470 AbstractCegarLoop]: Abstraction has 380 states and 462 transitions. [2021-11-03 03:43:18,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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 03:43:18,382 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 462 transitions. [2021-11-03 03:43:18,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-03 03:43:18,384 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:43:18,384 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] [2021-11-03 03:43:18,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 03:43:18,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:43:18,601 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-03 03:43:18,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:43:18,602 INFO L85 PathProgramCache]: Analyzing trace with hash -293053821, now seen corresponding path program 1 times [2021-11-03 03:43:18,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:43:18,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [46011072] [2021-11-03 03:43:18,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:43:18,605 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:43:18,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:43:18,606 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:43:18,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 03:43:22,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:43:22,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 1683 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-03 03:43:22,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:43:23,595 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 03:43:23,964 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 03:43:23,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:43:24,171 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 03:43:24,736 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 03:43:24,736 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:43:24,736 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [46011072] [2021-11-03 03:43:24,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [46011072] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:43:24,737 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:43:24,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-11-03 03:43:24,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905580904] [2021-11-03 03:43:24,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 03:43:24,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:43:24,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 03:43:24,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-03 03:43:24,739 INFO L87 Difference]: Start difference. First operand 380 states and 462 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 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 03:43:59,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:43:59,939 INFO L93 Difference]: Finished difference Result 731 states and 892 transitions. [2021-11-03 03:43:59,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 03:43:59,959 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 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 52 [2021-11-03 03:43:59,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:43:59,962 INFO L225 Difference]: With dead ends: 731 [2021-11-03 03:43:59,962 INFO L226 Difference]: Without dead ends: 386 [2021-11-03 03:43:59,963 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2021-11-03 03:43:59,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2021-11-03 03:43:59,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 382. [2021-11-03 03:43:59,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 365 states have (on average 1.2712328767123289) internal successors, (464), 381 states have internal predecessors, (464), 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 03:43:59,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 464 transitions. [2021-11-03 03:43:59,977 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 464 transitions. Word has length 52 [2021-11-03 03:43:59,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:43:59,978 INFO L470 AbstractCegarLoop]: Abstraction has 382 states and 464 transitions. [2021-11-03 03:43:59,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 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 03:43:59,978 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 464 transitions. [2021-11-03 03:43:59,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-03 03:43:59,980 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:43:59,980 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] [2021-11-03 03:44:00,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 03:44:00,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:44:00,202 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-03 03:44:00,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:44:00,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1630174213, now seen corresponding path program 1 times [2021-11-03 03:44:00,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:44:00,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1120986866] [2021-11-03 03:44:00,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:44:00,207 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:44:00,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:44:00,208 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:44:00,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 03:44:04,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:44:04,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 1680 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 03:44:04,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:44:05,040 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 03:44:05,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:44:05,479 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 03:44:05,479 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:44:05,480 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1120986866] [2021-11-03 03:44:05,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1120986866] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:44:05,480 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:44:05,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 03:44:05,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529749054] [2021-11-03 03:44:05,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:44:05,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:44:05,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:44:05,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:44:05,482 INFO L87 Difference]: Start difference. First operand 382 states and 464 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 03:44:07,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:44:07,850 INFO L93 Difference]: Finished difference Result 730 states and 890 transitions. [2021-11-03 03:44:07,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 03:44:07,854 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 52 [2021-11-03 03:44:07,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:44:07,857 INFO L225 Difference]: With dead ends: 730 [2021-11-03 03:44:07,857 INFO L226 Difference]: Without dead ends: 380 [2021-11-03 03:44:07,858 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 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 03:44:07,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2021-11-03 03:44:07,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 380. [2021-11-03 03:44:07,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 363 states have (on average 1.2672176308539944) internal successors, (460), 379 states have internal predecessors, (460), 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 03:44:07,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 460 transitions. [2021-11-03 03:44:07,871 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 460 transitions. Word has length 52 [2021-11-03 03:44:07,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:44:07,871 INFO L470 AbstractCegarLoop]: Abstraction has 380 states and 460 transitions. [2021-11-03 03:44:07,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 03:44:07,872 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 460 transitions. [2021-11-03 03:44:07,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-03 03:44:07,873 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:44:07,873 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] [2021-11-03 03:44:07,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-03 03:44:08,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:44:08,086 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-03 03:44:08,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:44:08,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1198784354, now seen corresponding path program 1 times [2021-11-03 03:44:08,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:44:08,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1504901675] [2021-11-03 03:44:08,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:44:08,090 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:44:08,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:44:08,094 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:44:08,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 03:44:12,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:44:12,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 1694 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-03 03:44:12,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:44:13,074 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 03:44:13,225 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 03:44:13,426 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 03:44:13,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:44:13,650 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 03:44:14,164 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 03:44:14,164 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:44:14,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1504901675] [2021-11-03 03:44:14,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1504901675] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:44:14,164 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:44:14,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-03 03:44:14,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690380460] [2021-11-03 03:44:14,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 03:44:14,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:44:14,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 03:44:14,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-03 03:44:14,166 INFO L87 Difference]: Start difference. First operand 380 states and 460 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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 03:44:51,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:44:51,239 INFO L93 Difference]: Finished difference Result 726 states and 883 transitions. [2021-11-03 03:44:51,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 03:44:51,251 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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 54 [2021-11-03 03:44:51,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:44:51,254 INFO L225 Difference]: With dead ends: 726 [2021-11-03 03:44:51,254 INFO L226 Difference]: Without dead ends: 380 [2021-11-03 03:44:51,255 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-03 03:44:51,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2021-11-03 03:44:51,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 380. [2021-11-03 03:44:51,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 363 states have (on average 1.2644628099173554) internal successors, (459), 379 states have internal predecessors, (459), 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 03:44:51,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 459 transitions. [2021-11-03 03:44:51,267 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 459 transitions. Word has length 54 [2021-11-03 03:44:51,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:44:51,267 INFO L470 AbstractCegarLoop]: Abstraction has 380 states and 459 transitions. [2021-11-03 03:44:51,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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 03:44:51,268 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 459 transitions. [2021-11-03 03:44:51,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-03 03:44:51,269 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:44:51,269 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] [2021-11-03 03:44:51,318 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-03 03:44:51,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:44:51,482 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-03 03:44:51,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:44:51,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1371165291, now seen corresponding path program 1 times [2021-11-03 03:44:51,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:44:51,486 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [49880810] [2021-11-03 03:44:51,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:44:51,486 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:44:51,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:44:51,487 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:44:51,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 03:44:55,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:44:56,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 1707 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 03:44:56,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:44:56,206 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 03:44:56,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:44:56,321 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 03:44:56,321 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:44:56,322 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [49880810] [2021-11-03 03:44:56,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [49880810] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:44:56,322 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:44:56,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 03:44:56,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299081970] [2021-11-03 03:44:56,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:44:56,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:44:56,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:44:56,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:44:56,323 INFO L87 Difference]: Start difference. First operand 380 states and 459 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 03:45:02,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:45:02,057 INFO L93 Difference]: Finished difference Result 910 states and 1106 transitions. [2021-11-03 03:45:02,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 03:45:02,058 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 55 [2021-11-03 03:45:02,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:45:02,061 INFO L225 Difference]: With dead ends: 910 [2021-11-03 03:45:02,062 INFO L226 Difference]: Without dead ends: 576 [2021-11-03 03:45:02,063 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 106 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 03:45:02,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2021-11-03 03:45:02,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 380. [2021-11-03 03:45:02,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 363 states have (on average 1.2506887052341598) internal successors, (454), 379 states have internal predecessors, (454), 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 03:45:02,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 454 transitions. [2021-11-03 03:45:02,077 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 454 transitions. Word has length 55 [2021-11-03 03:45:02,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:45:02,077 INFO L470 AbstractCegarLoop]: Abstraction has 380 states and 454 transitions. [2021-11-03 03:45:02,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 03:45:02,077 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 454 transitions. [2021-11-03 03:45:02,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-03 03:45:02,078 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:45:02,078 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] [2021-11-03 03:45:02,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 03:45:02,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:45:02,302 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-03 03:45:02,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:45:02,303 INFO L85 PathProgramCache]: Analyzing trace with hash 2008987970, now seen corresponding path program 1 times [2021-11-03 03:45:02,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:45:02,307 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [526578689] [2021-11-03 03:45:02,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:45:02,307 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:45:02,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:45:02,308 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:45:02,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 03:45:06,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:45:06,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 1720 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-03 03:45:06,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:45:07,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:45:07,131 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:45:07,272 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 03:45:07,272 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:45:07,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [526578689] [2021-11-03 03:45:07,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [526578689] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:45:07,272 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:45:07,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 03:45:07,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77118682] [2021-11-03 03:45:07,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:45:07,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:45:07,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:45:07,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:45:07,274 INFO L87 Difference]: Start difference. First operand 380 states and 454 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 03:45:07,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:45:07,570 INFO L93 Difference]: Finished difference Result 577 states and 714 transitions. [2021-11-03 03:45:07,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 03:45:07,570 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 56 [2021-11-03 03:45:07,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:45:07,574 INFO L225 Difference]: With dead ends: 577 [2021-11-03 03:45:07,574 INFO L226 Difference]: Without dead ends: 571 [2021-11-03 03:45:07,575 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 108 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 03:45:07,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2021-11-03 03:45:07,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 374. [2021-11-03 03:45:07,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 360 states have (on average 1.2444444444444445) internal successors, (448), 373 states have internal predecessors, (448), 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 03:45:07,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 448 transitions. [2021-11-03 03:45:07,591 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 448 transitions. Word has length 56 [2021-11-03 03:45:07,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:45:07,591 INFO L470 AbstractCegarLoop]: Abstraction has 374 states and 448 transitions. [2021-11-03 03:45:07,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 03:45:07,592 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 448 transitions. [2021-11-03 03:45:07,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-03 03:45:07,592 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:45:07,593 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] [2021-11-03 03:45:07,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 03:45:07,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:45:07,801 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-03 03:45:07,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:45:07,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1039905759, now seen corresponding path program 1 times [2021-11-03 03:45:07,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:45:07,807 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1408836908] [2021-11-03 03:45:07,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:45:07,807 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:45:07,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:45:07,808 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:45:07,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 03:45:12,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:45:12,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 1733 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 03:45:12,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:45:12,547 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 03:45:12,547 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:45:12,733 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 03:45:12,734 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:45:12,734 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1408836908] [2021-11-03 03:45:12,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1408836908] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:45:12,734 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:45:12,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-03 03:45:12,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013668351] [2021-11-03 03:45:12,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 03:45:12,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:45:12,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 03:45:12,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 03:45:12,735 INFO L87 Difference]: Start difference. First operand 374 states and 448 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 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 03:45:13,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:45:13,540 INFO L93 Difference]: Finished difference Result 1536 states and 1918 transitions. [2021-11-03 03:45:13,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 03:45:13,541 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 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 63 [2021-11-03 03:45:13,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:45:13,550 INFO L225 Difference]: With dead ends: 1536 [2021-11-03 03:45:13,550 INFO L226 Difference]: Without dead ends: 1534 [2021-11-03 03:45:13,551 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-11-03 03:45:13,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1534 states. [2021-11-03 03:45:13,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1534 to 372. [2021-11-03 03:45:13,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 359 states have (on average 1.2423398328690807) internal successors, (446), 371 states have internal predecessors, (446), 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 03:45:13,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 446 transitions. [2021-11-03 03:45:13,573 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 446 transitions. Word has length 63 [2021-11-03 03:45:13,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:45:13,573 INFO L470 AbstractCegarLoop]: Abstraction has 372 states and 446 transitions. [2021-11-03 03:45:13,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 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 03:45:13,574 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 446 transitions. [2021-11-03 03:45:13,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-03 03:45:13,575 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:45:13,575 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] [2021-11-03 03:45:13,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-03 03:45:13,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:45:13,795 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-03 03:45:13,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:45:13,795 INFO L85 PathProgramCache]: Analyzing trace with hash 82048191, now seen corresponding path program 1 times [2021-11-03 03:45:13,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:45:13,798 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [830103593] [2021-11-03 03:45:13,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:45:13,799 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:45:13,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:45:13,800 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:45:13,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 03:45:18,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:45:18,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 1830 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 03:45:18,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:45:18,802 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 03:45:18,802 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:45:19,043 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 03:45:19,043 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:45:19,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [830103593] [2021-11-03 03:45:19,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [830103593] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:45:19,044 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:45:19,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 03:45:19,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984019870] [2021-11-03 03:45:19,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 03:45:19,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:45:19,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 03:45:19,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:45:19,045 INFO L87 Difference]: Start difference. First operand 372 states and 446 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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 03:45:19,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:45:19,375 INFO L93 Difference]: Finished difference Result 996 states and 1207 transitions. [2021-11-03 03:45:19,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 03:45:19,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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 70 [2021-11-03 03:45:19,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:45:19,383 INFO L225 Difference]: With dead ends: 996 [2021-11-03 03:45:19,383 INFO L226 Difference]: Without dead ends: 693 [2021-11-03 03:45:19,384 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 03:45:19,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2021-11-03 03:45:19,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 390. [2021-11-03 03:45:19,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 377 states have (on average 1.2360742705570291) internal successors, (466), 389 states have internal predecessors, (466), 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 03:45:19,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 466 transitions. [2021-11-03 03:45:19,405 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 466 transitions. Word has length 70 [2021-11-03 03:45:19,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:45:19,405 INFO L470 AbstractCegarLoop]: Abstraction has 390 states and 466 transitions. [2021-11-03 03:45:19,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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 03:45:19,406 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 466 transitions. [2021-11-03 03:45:19,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-03 03:45:19,407 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:45:19,407 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] [2021-11-03 03:45:19,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-03 03:45:19,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:45:19,622 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-03 03:45:19,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:45:19,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1197815487, now seen corresponding path program 1 times [2021-11-03 03:45:19,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:45:19,625 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [941099613] [2021-11-03 03:45:19,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:45:19,625 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:45:19,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:45:19,626 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:45:19,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-03 03:45:24,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:45:24,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 1827 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-03 03:45:24,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:45:25,129 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 03:45:25,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:45:25,815 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 03:45:25,815 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:45:25,815 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [941099613] [2021-11-03 03:45:25,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [941099613] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:45:25,815 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:45:25,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2021-11-03 03:45:25,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247866802] [2021-11-03 03:45:25,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 03:45:25,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:45:25,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 03:45:25,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-03 03:45:25,817 INFO L87 Difference]: Start difference. First operand 390 states and 466 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 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 03:45:28,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:45:28,691 INFO L93 Difference]: Finished difference Result 1173 states and 1423 transitions. [2021-11-03 03:45:28,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 03:45:28,693 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 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 70 [2021-11-03 03:45:28,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:45:28,698 INFO L225 Difference]: With dead ends: 1173 [2021-11-03 03:45:28,698 INFO L226 Difference]: Without dead ends: 882 [2021-11-03 03:45:28,699 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2021-11-03 03:45:28,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2021-11-03 03:45:28,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 404. [2021-11-03 03:45:28,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 391 states have (on average 1.237851662404092) internal successors, (484), 403 states have internal predecessors, (484), 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 03:45:28,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 484 transitions. [2021-11-03 03:45:28,731 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 484 transitions. Word has length 70 [2021-11-03 03:45:28,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:45:28,731 INFO L470 AbstractCegarLoop]: Abstraction has 404 states and 484 transitions. [2021-11-03 03:45:28,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 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 03:45:28,732 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 484 transitions. [2021-11-03 03:45:28,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-03 03:45:28,733 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:45:28,733 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] [2021-11-03 03:45:28,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-03 03:45:28,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:45:28,954 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-03 03:45:28,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:45:28,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1578763667, now seen corresponding path program 1 times [2021-11-03 03:45:28,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:45:28,957 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [32920405] [2021-11-03 03:45:28,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:45:28,958 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:45:28,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:45:28,958 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:45:28,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-03 03:45:33,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:45:33,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 1815 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-03 03:45:33,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:45:34,259 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 03:45:34,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:45:34,617 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 03:45:34,618 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:45:34,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [32920405] [2021-11-03 03:45:34,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [32920405] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:45:34,618 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:45:34,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-11-03 03:45:34,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188204326] [2021-11-03 03:45:34,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 03:45:34,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:45:34,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 03:45:34,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 03:45:34,620 INFO L87 Difference]: Start difference. First operand 404 states and 484 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 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 03:45:55,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:45:55,817 INFO L93 Difference]: Finished difference Result 1118 states and 1344 transitions. [2021-11-03 03:45:55,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 03:45:55,837 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 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 71 [2021-11-03 03:45:55,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:45:55,841 INFO L225 Difference]: With dead ends: 1118 [2021-11-03 03:45:55,841 INFO L226 Difference]: Without dead ends: 852 [2021-11-03 03:45:55,842 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-03 03:45:55,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2021-11-03 03:45:55,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 404. [2021-11-03 03:45:55,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 391 states have (on average 1.2327365728900255) internal successors, (482), 403 states have internal predecessors, (482), 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 03:45:55,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 482 transitions. [2021-11-03 03:45:55,879 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 482 transitions. Word has length 71 [2021-11-03 03:45:55,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:45:55,880 INFO L470 AbstractCegarLoop]: Abstraction has 404 states and 482 transitions. [2021-11-03 03:45:55,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 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 03:45:55,880 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 482 transitions. [2021-11-03 03:45:55,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-03 03:45:55,881 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:45:55,881 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] [2021-11-03 03:45:55,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-03 03:45:56,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:45:56,094 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-03 03:45:56,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:45:56,094 INFO L85 PathProgramCache]: Analyzing trace with hash 2010135366, now seen corresponding path program 1 times [2021-11-03 03:45:56,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:45:56,097 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1511565527] [2021-11-03 03:45:56,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:45:56,098 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:45:56,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:45:56,098 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:45:56,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-03 03:46:00,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:46:00,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 1781 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 03:46:00,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:46:01,075 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 03:46:01,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:46:01,316 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 03:46:01,316 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:46:01,316 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1511565527] [2021-11-03 03:46:01,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1511565527] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:46:01,316 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:46:01,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-03 03:46:01,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025861138] [2021-11-03 03:46:01,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 03:46:01,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:46:01,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 03:46:01,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 03:46:01,318 INFO L87 Difference]: Start difference. First operand 404 states and 482 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 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 03:46:01,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:46:01,651 INFO L93 Difference]: Finished difference Result 862 states and 1025 transitions. [2021-11-03 03:46:01,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 03:46:01,652 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 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 72 [2021-11-03 03:46:01,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:46:01,656 INFO L225 Difference]: With dead ends: 862 [2021-11-03 03:46:01,656 INFO L226 Difference]: Without dead ends: 815 [2021-11-03 03:46:01,657 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-03 03:46:01,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2021-11-03 03:46:01,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 406. [2021-11-03 03:46:01,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 393 states have (on average 1.2315521628498727) internal successors, (484), 405 states have internal predecessors, (484), 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 03:46:01,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 484 transitions. [2021-11-03 03:46:01,698 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 484 transitions. Word has length 72 [2021-11-03 03:46:01,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:46:01,698 INFO L470 AbstractCegarLoop]: Abstraction has 406 states and 484 transitions. [2021-11-03 03:46:01,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 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 03:46:01,698 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 484 transitions. [2021-11-03 03:46:01,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-03 03:46:01,699 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:46:01,700 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] [2021-11-03 03:46:01,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-03 03:46:01,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:46:01,926 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2021-11-03 03:46:01,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:46:01,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1698818310, now seen corresponding path program 1 times [2021-11-03 03:46:01,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:46:01,931 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1928852171] [2021-11-03 03:46:01,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:46:01,932 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:46:01,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:46:01,933 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:46:01,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f3f540c-969f-4a8c-8d8c-5f1283fa30cb/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-03 03:46:08,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:46:08,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 1828 conjuncts, 73 conjunts are in the unsatisfiable core [2021-11-03 03:46:08,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:47:15,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:47:15,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:47:15,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:47:15,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 102 [2021-11-03 03:47:15,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:47:15,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:47:15,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:47:15,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 70 [2021-11-03 03:47:21,460 INFO L354 Elim1Store]: treesize reduction 9360, result has 0.0 percent of original size [2021-11-03 03:47:21,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 40 select indices, 40 select index equivalence classes, 0 disjoint index pairs (out of 780 index pairs), introduced 40 new quantified variables, introduced 780 case distinctions, treesize of input 955 treesize of output 283 [2021-11-03 03:47:22,962 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 03:47:22,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:49:36,681 WARN L207 SmtUtils]: Spent 46.50 s on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2021-11-03 03:49:36,683 INFO L354 Elim1Store]: treesize reduction 76, result has 59.6 percent of original size [2021-11-03 03:49:36,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 1815 treesize of output 1894 [2021-11-03 03:50:20,329 WARN L207 SmtUtils]: Spent 43.62 s on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2021-11-03 03:50:20,330 INFO L354 Elim1Store]: treesize reduction 76, result has 59.6 percent of original size [2021-11-03 03:50:20,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 1894 treesize of output 1973