./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG --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 5db0d3c47797ff0a215821e8d5fa38ab9190be93d125d3ffd24136b371560f6c ................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG --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 5db0d3c47797ff0a215821e8d5fa38ab9190be93d125d3ffd24136b371560f6c ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:44:44,166 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:44:44,171 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:44:44,208 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:44:44,208 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:44:44,210 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:44:44,211 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:44:44,214 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:44:44,216 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:44:44,217 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:44:44,218 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:44:44,220 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:44:44,220 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:44:44,222 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:44:44,224 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:44:44,225 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:44:44,227 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:44:44,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:44:44,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:44:44,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:44:44,236 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:44:44,238 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:44:44,239 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:44:44,245 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:44:44,249 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:44:44,249 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:44:44,250 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:44:44,251 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:44:44,252 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:44:44,253 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:44:44,253 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:44:44,254 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:44:44,255 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:44:44,256 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:44:44,257 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:44:44,258 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:44:44,259 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:44:44,259 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:44:44,259 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:44:44,261 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:44:44,261 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:44:44,264 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-10-29 04:44:44,316 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:44:44,317 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:44:44,318 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:44:44,318 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:44:44,318 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:44:44,318 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:44:44,319 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 04:44:44,319 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:44:44,319 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:44:44,320 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 04:44:44,320 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 04:44:44,320 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:44:44,320 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 04:44:44,321 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 04:44:44,321 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 04:44:44,322 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:44:44,322 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:44:44,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:44:44,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:44:44,323 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:44:44,323 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:44:44,323 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:44:44,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:44:44,323 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:44:44,324 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:44:44,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:44:44,324 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:44:44,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:44:44,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:44:44,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:44:44,325 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:44:44,325 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 04:44:44,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:44:44,326 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:44:44,326 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:44:44,326 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:44:44,326 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_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5db0d3c47797ff0a215821e8d5fa38ab9190be93d125d3ffd24136b371560f6c [2021-10-29 04:44:44,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:44:44,592 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:44:44,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:44:44,596 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:44:44,597 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:44:44,598 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2021-10-29 04:44:44,677 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/data/72b29b1c0/6de818648974460f8b5af8e773a50c70/FLAG6798ad23c [2021-10-29 04:44:45,378 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:44:45,379 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2021-10-29 04:44:45,426 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/data/72b29b1c0/6de818648974460f8b5af8e773a50c70/FLAG6798ad23c [2021-10-29 04:44:45,537 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/data/72b29b1c0/6de818648974460f8b5af8e773a50c70 [2021-10-29 04:44:45,541 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:44:45,543 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:44:45,545 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:44:45,546 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:44:45,549 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:44:45,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:44:45" (1/1) ... [2021-10-29 04:44:45,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e7f34fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:45, skipping insertion in model container [2021-10-29 04:44:45,553 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:44:45" (1/1) ... [2021-10-29 04:44:45,561 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:44:45,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:44:45,972 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2021-10-29 04:44:45,979 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_374b6631-580e-472a-8aea-65f0c2d74b52/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2021-10-29 04:44:45,998 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-10-29 04:44:46,003 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-10-29 04:44:46,761 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:46,762 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:46,763 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:46,764 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:46,767 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:46,803 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:46,808 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:46,810 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:46,811 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:46,813 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:46,815 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:46,816 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:46,816 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:46,996 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-10-29 04:44:46,997 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-10-29 04:44:46,998 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-10-29 04:44:47,000 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-10-29 04:44:47,002 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-10-29 04:44:47,002 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-10-29 04:44:47,006 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-10-29 04:44:47,008 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-10-29 04:44:47,010 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-10-29 04:44:47,011 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-10-29 04:44:47,096 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:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1038) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:946) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1353) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:249) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.translateInitializer(CHandler.java:2915) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:2775) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2085) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1103) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:211) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1052) 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:1436) 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:3224) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2305) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:580) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-29 04:44:47,108 INFO L168 Benchmark]: Toolchain (without parser) took 1563.45 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 53.7 MB in the beginning and 65.2 MB in the end (delta: -11.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:44:47,110 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 92.3 MB. Free memory was 49.6 MB in the beginning and 49.5 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:44:47,112 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1560.24 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 53.4 MB in the beginning and 65.2 MB in the end (delta: -11.7 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. [2021-10-29 04:44:47,116 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 92.3 MB. Free memory was 49.6 MB in the beginning and 49.5 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1560.24 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 53.4 MB in the beginning and 65.2 MB in the end (delta: -11.7 MB). Peak memory consumption was 11.3 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:193) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:44:49,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:44:49,424 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:44:49,484 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:44:49,485 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:44:49,490 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:44:49,493 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:44:49,503 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:44:49,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:44:49,514 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:44:49,515 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:44:49,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:44:49,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:44:49,518 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:44:49,519 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:44:49,521 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:44:49,522 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:44:49,523 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:44:49,525 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:44:49,532 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:44:49,534 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:44:49,536 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:44:49,540 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:44:49,543 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:44:49,554 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:44:49,556 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:44:49,556 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:44:49,559 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:44:49,560 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:44:49,561 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:44:49,561 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:44:49,562 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:44:49,564 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:44:49,565 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:44:49,567 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:44:49,567 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:44:49,580 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:44:49,580 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:44:49,580 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:44:49,581 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:44:49,582 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:44:49,584 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-10-29 04:44:49,631 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:44:49,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:44:49,633 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:44:49,633 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:44:49,633 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:44:49,633 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:44:49,634 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:44:49,634 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:44:49,635 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:44:49,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:44:49,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:44:49,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:44:49,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:44:49,639 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:44:49,639 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:44:49,639 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 04:44:49,640 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 04:44:49,640 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:44:49,640 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:44:49,641 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:44:49,641 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:44:49,641 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 04:44:49,641 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:44:49,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:44:49,642 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:44:49,642 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:44:49,643 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:44:49,643 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 04:44:49,643 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 04:44:49,643 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:44:49,644 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:44:49,644 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:44:49,644 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_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5db0d3c47797ff0a215821e8d5fa38ab9190be93d125d3ffd24136b371560f6c [2021-10-29 04:44:49,994 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:44:50,019 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:44:50,022 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:44:50,023 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:44:50,024 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:44:50,025 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2021-10-29 04:44:50,094 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/data/c2dda47cf/a1bd13e4490743bbbe09d48c98c77d48/FLAG8a8890749 [2021-10-29 04:44:50,918 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:44:50,919 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i [2021-10-29 04:44:50,960 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/data/c2dda47cf/a1bd13e4490743bbbe09d48c98c77d48/FLAG8a8890749 [2021-10-29 04:44:51,012 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/data/c2dda47cf/a1bd13e4490743bbbe09d48c98c77d48 [2021-10-29 04:44:51,019 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:44:51,021 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:44:51,023 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:44:51,023 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:44:51,027 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:44:51,028 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:44:51" (1/1) ... [2021-10-29 04:44:51,029 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2585c56a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:51, skipping insertion in model container [2021-10-29 04:44:51,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:44:51" (1/1) ... [2021-10-29 04:44:51,053 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:44:51,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:44:51,549 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_374b6631-580e-472a-8aea-65f0c2d74b52/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2021-10-29 04:44:51,556 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_374b6631-580e-472a-8aea-65f0c2d74b52/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2021-10-29 04:44:51,577 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-10-29 04:44:51,583 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-10-29 04:44:52,260 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:52,261 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:52,262 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:52,263 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:52,264 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:52,294 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:52,295 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:52,297 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:52,298 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:52,301 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:52,302 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:52,303 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:52,304 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:52,535 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-10-29 04:44:52,538 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-10-29 04:44:52,541 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-10-29 04:44:52,543 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-10-29 04:44:52,546 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-10-29 04:44:52,548 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-10-29 04:44:52,550 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-10-29 04:44:52,551 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-10-29 04:44:52,554 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-10-29 04:44:52,558 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-10-29 04:44:52,681 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:44:52,707 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-29 04:44:52,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:44:52,755 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_374b6631-580e-472a-8aea-65f0c2d74b52/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2021-10-29 04:44:52,755 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_374b6631-580e-472a-8aea-65f0c2d74b52/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2021-10-29 04:44:52,757 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-10-29 04:44:52,760 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-10-29 04:44:52,851 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:52,852 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:52,852 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:52,853 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:52,854 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:52,874 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:52,874 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:52,875 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:52,876 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:52,877 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:52,878 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:52,879 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:52,879 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:52,923 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-10-29 04:44:52,924 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-10-29 04:44:52,925 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-10-29 04:44:52,926 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-10-29 04:44:52,927 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-10-29 04:44:52,928 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-10-29 04:44:52,929 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-10-29 04:44:52,929 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-10-29 04:44:52,930 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-10-29 04:44:52,931 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-10-29 04:44:52,982 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:44:52,992 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:44:53,017 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_374b6631-580e-472a-8aea-65f0c2d74b52/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4491,4504] [2021-10-29 04:44:53,018 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_374b6631-580e-472a-8aea-65f0c2d74b52/sv-benchmarks/c/aws-c-common/memset_override_0_harness.i[4551,4564] [2021-10-29 04:44:53,019 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-10-29 04:44:53,020 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-10-29 04:44:53,082 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:53,083 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:53,083 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:53,084 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:53,084 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:53,092 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:53,093 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:53,094 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:53,095 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:53,096 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:53,097 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:53,097 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:53,097 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-29 04:44:53,117 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-10-29 04:44:53,118 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-10-29 04:44:53,119 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-10-29 04:44:53,120 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-10-29 04:44:53,121 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-10-29 04:44:53,121 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-10-29 04:44:53,122 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-10-29 04:44:53,122 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-10-29 04:44:53,123 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-10-29 04:44:53,123 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-10-29 04:44:53,143 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:44:53,434 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:44:53,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:53 WrapperNode [2021-10-29 04:44:53,434 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:44:53,436 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:44:53,436 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:44:53,436 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:44:53,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:53" (1/1) ... [2021-10-29 04:44:53,552 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:53" (1/1) ... [2021-10-29 04:44:53,620 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:44:53,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:44:53,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:44:53,622 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:44:53,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:53" (1/1) ... [2021-10-29 04:44:53,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:53" (1/1) ... [2021-10-29 04:44:53,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:53" (1/1) ... [2021-10-29 04:44:53,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:53" (1/1) ... [2021-10-29 04:44:53,680 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:53" (1/1) ... [2021-10-29 04:44:53,697 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:53" (1/1) ... [2021-10-29 04:44:53,702 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:53" (1/1) ... [2021-10-29 04:44:53,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:44:53,720 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:44:53,720 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:44:53,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:44:53,721 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:53" (1/1) ... [2021-10-29 04:44:53,728 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:44:53,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:44:53,750 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:44:53,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:44:53,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 04:44:53,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 04:44:53,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:44:53,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:44:53,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-10-29 04:44:53,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:44:53,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-10-29 04:44:53,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-10-29 04:44:54,476 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:44:54,476 INFO L299 CfgBuilder]: Removed 44 assume(true) statements. [2021-10-29 04:44:54,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:44:54 BoogieIcfgContainer [2021-10-29 04:44:54,479 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:44:54,481 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:44:54,481 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:44:54,485 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:44:54,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:44:51" (1/3) ... [2021-10-29 04:44:54,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a12fba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:44:54, skipping insertion in model container [2021-10-29 04:44:54,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:53" (2/3) ... [2021-10-29 04:44:54,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a12fba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:44:54, skipping insertion in model container [2021-10-29 04:44:54,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:44:54" (3/3) ... [2021-10-29 04:44:54,488 INFO L111 eAbstractionObserver]: Analyzing ICFG memset_override_0_harness.i [2021-10-29 04:44:54,494 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:44:54,495 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-10-29 04:44:54,547 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:44:54,554 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 [2021-10-29 04:44:54,554 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-29 04:44:54,569 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 47 states have (on average 1.5106382978723405) internal successors, (71), 52 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:44:54,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-29 04:44:54,574 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:44:54,574 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:44:54,575 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-29 04:44:54,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:44:54,585 INFO L85 PathProgramCache]: Analyzing trace with hash -2009978325, now seen corresponding path program 1 times [2021-10-29 04:44:54,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:44:54,601 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [132124147] [2021-10-29 04:44:54,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:44:54,604 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:44:54,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:44:54,616 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:44:54,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 04:44:54,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:44:54,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-29 04:44:54,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:44:54,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:44:54,920 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:44:55,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:44:55,004 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:44:55,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [132124147] [2021-10-29 04:44:55,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [132124147] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:44:55,005 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:44:55,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 04:44:55,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492734040] [2021-10-29 04:44:55,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 04:44:55,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:44:55,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 04:44:55,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 04:44:55,035 INFO L87 Difference]: Start difference. First operand has 53 states, 47 states have (on average 1.5106382978723405) internal successors, (71), 52 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2021-10-29 04:44:55,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:44:55,066 INFO L93 Difference]: Finished difference Result 103 states and 138 transitions. [2021-10-29 04:44:55,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 04:44:55,067 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 16 [2021-10-29 04:44:55,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:44:55,077 INFO L225 Difference]: With dead ends: 103 [2021-10-29 04:44:55,077 INFO L226 Difference]: Without dead ends: 47 [2021-10-29 04:44:55,082 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 04:44:55,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-29 04:44:55,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-10-29 04:44:55,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 42 states have (on average 1.1904761904761905) internal successors, (50), 46 states have internal predecessors, (50), 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) [2021-10-29 04:44:55,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 50 transitions. [2021-10-29 04:44:55,117 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 50 transitions. Word has length 16 [2021-10-29 04:44:55,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:44:55,118 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 50 transitions. [2021-10-29 04:44:55,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2021-10-29 04:44:55,118 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 50 transitions. [2021-10-29 04:44:55,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-29 04:44:55,119 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:44:55,119 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:44:55,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 04:44:55,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:44:55,338 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-29 04:44:55,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:44:55,339 INFO L85 PathProgramCache]: Analyzing trace with hash 329723105, now seen corresponding path program 1 times [2021-10-29 04:44:55,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:44:55,341 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1837320610] [2021-10-29 04:44:55,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:44:55,341 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:44:55,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:44:55,343 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:44:55,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 04:44:55,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:44:55,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-29 04:44:55,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:44:55,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:44:55,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:44:55,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:44:55,839 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:44:55,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1837320610] [2021-10-29 04:44:55,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1837320610] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:44:55,840 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:44:55,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-10-29 04:44:55,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991855987] [2021-10-29 04:44:55,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 04:44:55,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:44:55,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 04:44:55,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 04:44:55,846 INFO L87 Difference]: Start difference. First operand 47 states and 50 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:44:56,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:44:56,046 INFO L93 Difference]: Finished difference Result 47 states and 50 transitions. [2021-10-29 04:44:56,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 04:44:56,047 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-29 04:44:56,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:44:56,048 INFO L225 Difference]: With dead ends: 47 [2021-10-29 04:44:56,048 INFO L226 Difference]: Without dead ends: 45 [2021-10-29 04:44:56,049 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-10-29 04:44:56,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-10-29 04:44:56,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-10-29 04:44:56,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 41 states have (on average 1.170731707317073) internal successors, (48), 44 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:44:56,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2021-10-29 04:44:56,055 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 16 [2021-10-29 04:44:56,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:44:56,056 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2021-10-29 04:44:56,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:44:56,056 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2021-10-29 04:44:56,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-29 04:44:56,057 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:44:56,057 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:44:56,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 04:44:56,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:44:56,272 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-29 04:44:56,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:44:56,273 INFO L85 PathProgramCache]: Analyzing trace with hash -963549789, now seen corresponding path program 1 times [2021-10-29 04:44:56,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:44:56,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [771483468] [2021-10-29 04:44:56,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:44:56,274 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:44:56,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:44:56,275 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:44:56,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 04:44:56,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:44:56,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-29 04:44:56,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:44:56,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:44:56,717 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:44:56,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:44:56,930 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:44:56,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [771483468] [2021-10-29 04:44:56,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [771483468] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:44:56,931 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:44:56,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2021-10-29 04:44:56,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647134016] [2021-10-29 04:44:56,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-29 04:44:56,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:44:56,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-29 04:44:56,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-29 04:44:56,934 INFO L87 Difference]: Start difference. First operand 45 states and 48 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 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) [2021-10-29 04:44:57,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:44:57,239 INFO L93 Difference]: Finished difference Result 45 states and 48 transitions. [2021-10-29 04:44:57,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 04:44:57,240 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-29 04:44:57,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:44:57,241 INFO L225 Difference]: With dead ends: 45 [2021-10-29 04:44:57,241 INFO L226 Difference]: Without dead ends: 43 [2021-10-29 04:44:57,242 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-10-29 04:44:57,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-10-29 04:44:57,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-10-29 04:44:57,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 40 states have (on average 1.15) internal successors, (46), 42 states have internal predecessors, (46), 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) [2021-10-29 04:44:57,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2021-10-29 04:44:57,249 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 18 [2021-10-29 04:44:57,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:44:57,249 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2021-10-29 04:44:57,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 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) [2021-10-29 04:44:57,250 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2021-10-29 04:44:57,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-29 04:44:57,251 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:44:57,251 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] [2021-10-29 04:44:57,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-29 04:44:57,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:44:57,468 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-29 04:44:57,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:44:57,469 INFO L85 PathProgramCache]: Analyzing trace with hash -59070895, now seen corresponding path program 1 times [2021-10-29 04:44:57,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:44:57,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1180782980] [2021-10-29 04:44:57,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:44:57,470 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:44:57,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:44:57,471 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:44:57,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-29 04:44:57,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:44:57,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-29 04:44:57,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:44:57,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:44:57,967 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:44:58,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:44:58,179 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:44:58,179 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1180782980] [2021-10-29 04:44:58,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1180782980] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:44:58,180 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:44:58,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-10-29 04:44:58,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801180770] [2021-10-29 04:44:58,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 04:44:58,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:44:58,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 04:44:58,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-29 04:44:58,182 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2021-10-29 04:44:58,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:44:58,283 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2021-10-29 04:44:58,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 04:44:58,284 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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 23 [2021-10-29 04:44:58,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:44:58,285 INFO L225 Difference]: With dead ends: 48 [2021-10-29 04:44:58,285 INFO L226 Difference]: Without dead ends: 46 [2021-10-29 04:44:58,285 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-29 04:44:58,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-10-29 04:44:58,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 41. [2021-10-29 04:44:58,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 39 states have (on average 1.1282051282051282) internal successors, (44), 40 states have internal predecessors, (44), 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) [2021-10-29 04:44:58,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2021-10-29 04:44:58,291 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 23 [2021-10-29 04:44:58,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:44:58,292 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2021-10-29 04:44:58,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2021-10-29 04:44:58,292 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2021-10-29 04:44:58,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-29 04:44:58,293 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:44:58,293 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] [2021-10-29 04:44:58,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-29 04:44:58,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:44:58,494 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-29 04:44:58,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:44:58,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1945883960, now seen corresponding path program 1 times [2021-10-29 04:44:58,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:44:58,495 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1341183748] [2021-10-29 04:44:58,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:44:58,495 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:44:58,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:44:58,497 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:44:58,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-29 04:44:58,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:44:58,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-29 04:44:58,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:44:59,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:44:59,094 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:44:59,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:44:59,284 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:44:59,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1341183748] [2021-10-29 04:44:59,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1341183748] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:44:59,284 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:44:59,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 5] imperfect sequences [] total 11 [2021-10-29 04:44:59,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541513981] [2021-10-29 04:44:59,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-29 04:44:59,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:44:59,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-29 04:44:59,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-10-29 04:44:59,287 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 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) [2021-10-29 04:44:59,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:44:59,831 INFO L93 Difference]: Finished difference Result 78 states and 81 transitions. [2021-10-29 04:44:59,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-29 04:44:59,832 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 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 28 [2021-10-29 04:44:59,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:44:59,833 INFO L225 Difference]: With dead ends: 78 [2021-10-29 04:44:59,834 INFO L226 Difference]: Without dead ends: 63 [2021-10-29 04:44:59,834 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2021-10-29 04:44:59,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-10-29 04:44:59,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 55. [2021-10-29 04:44:59,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 53 states have (on average 1.1132075471698113) internal successors, (59), 54 states have internal predecessors, (59), 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) [2021-10-29 04:44:59,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2021-10-29 04:44:59,844 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 28 [2021-10-29 04:44:59,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:44:59,844 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2021-10-29 04:44:59,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 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) [2021-10-29 04:44:59,845 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2021-10-29 04:44:59,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-29 04:44:59,846 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:44:59,846 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] [2021-10-29 04:44:59,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-29 04:45:00,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:45:00,072 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-29 04:45:00,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:45:00,072 INFO L85 PathProgramCache]: Analyzing trace with hash -20878187, now seen corresponding path program 1 times [2021-10-29 04:45:00,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:45:00,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [101547150] [2021-10-29 04:45:00,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:45:00,073 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:45:00,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:45:00,074 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:45:00,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-29 04:45:00,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:45:00,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 04:45:00,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:45:00,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:45:00,654 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:45:00,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:45:00,757 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:45:00,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [101547150] [2021-10-29 04:45:00,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [101547150] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:45:00,762 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:45:00,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 3] imperfect sequences [] total 9 [2021-10-29 04:45:00,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015185266] [2021-10-29 04:45:00,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-29 04:45:00,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:45:00,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-29 04:45:00,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-29 04:45:00,766 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 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) [2021-10-29 04:45:01,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:45:01,089 INFO L93 Difference]: Finished difference Result 87 states and 94 transitions. [2021-10-29 04:45:01,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-29 04:45:01,090 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 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 29 [2021-10-29 04:45:01,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:45:01,091 INFO L225 Difference]: With dead ends: 87 [2021-10-29 04:45:01,091 INFO L226 Difference]: Without dead ends: 58 [2021-10-29 04:45:01,091 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2021-10-29 04:45:01,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-10-29 04:45:01,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2021-10-29 04:45:01,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 56 states have (on average 1.1071428571428572) internal successors, (62), 57 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:45:01,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2021-10-29 04:45:01,101 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 29 [2021-10-29 04:45:01,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:45:01,101 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2021-10-29 04:45:01,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 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) [2021-10-29 04:45:01,102 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2021-10-29 04:45:01,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-29 04:45:01,103 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:45:01,103 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] [2021-10-29 04:45:01,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-29 04:45:01,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:45:01,323 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-29 04:45:01,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:45:01,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1012014150, now seen corresponding path program 1 times [2021-10-29 04:45:01,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:45:01,324 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1562387775] [2021-10-29 04:45:01,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:45:01,324 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:45:01,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:45:01,325 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:45:01,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-29 04:45:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:45:01,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-29 04:45:01,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:45:01,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:45:01,846 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:45:01,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:45:01,995 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:45:01,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1562387775] [2021-10-29 04:45:01,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1562387775] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:45:01,995 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:45:01,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 5] imperfect sequences [] total 11 [2021-10-29 04:45:01,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901363377] [2021-10-29 04:45:01,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-29 04:45:01,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:45:01,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-29 04:45:01,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-10-29 04:45:01,996 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 states have internal predecessors, (39), 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) [2021-10-29 04:45:02,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:45:02,446 INFO L93 Difference]: Finished difference Result 66 states and 69 transitions. [2021-10-29 04:45:02,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-29 04:45:02,447 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 states have internal predecessors, (39), 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 30 [2021-10-29 04:45:02,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:45:02,448 INFO L225 Difference]: With dead ends: 66 [2021-10-29 04:45:02,448 INFO L226 Difference]: Without dead ends: 44 [2021-10-29 04:45:02,448 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2021-10-29 04:45:02,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-10-29 04:45:02,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-10-29 04:45:02,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 42 states have (on average 1.0952380952380953) internal successors, (46), 43 states have internal predecessors, (46), 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) [2021-10-29 04:45:02,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 46 transitions. [2021-10-29 04:45:02,454 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 46 transitions. Word has length 30 [2021-10-29 04:45:02,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:45:02,455 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 46 transitions. [2021-10-29 04:45:02,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 states have internal predecessors, (39), 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) [2021-10-29 04:45:02,455 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2021-10-29 04:45:02,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-29 04:45:02,456 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:45:02,456 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:45:02,470 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-10-29 04:45:02,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:45:02,663 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-29 04:45:02,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:45:02,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1443290351, now seen corresponding path program 1 times [2021-10-29 04:45:02,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:45:02,664 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [520316825] [2021-10-29 04:45:02,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:45:02,664 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:45:02,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:45:02,665 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:45:02,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-29 04:45:02,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:45:02,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-29 04:45:02,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:45:03,511 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:45:03,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:45:04,035 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:45:04,035 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:45:04,035 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [520316825] [2021-10-29 04:45:04,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [520316825] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 04:45:04,036 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [429072566] [2021-10-29 04:45:04,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:45:04,036 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-29 04:45:04,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/cvc4 [2021-10-29 04:45:04,049 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-29 04:45:04,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-10-29 04:45:04,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:45:04,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 04:45:04,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:45:05,106 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:45:05,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:45:05,698 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:45:05,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [429072566] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 04:45:05,699 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840020709] [2021-10-29 04:45:05,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:45:05,699 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:45:05,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:45:05,700 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 04:45:05,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-29 04:45:06,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:45:06,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-29 04:45:06,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:45:06,828 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:45:06,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:45:08,600 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:45:08,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [840020709] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 04:45:08,600 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-29 04:45:08,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 9, 9, 10, 12] total 44 [2021-10-29 04:45:08,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220732300] [2021-10-29 04:45:08,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2021-10-29 04:45:08,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:45:08,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-10-29 04:45:08,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=262, Invalid=1630, Unknown=0, NotChecked=0, Total=1892 [2021-10-29 04:45:08,603 INFO L87 Difference]: Start difference. First operand 44 states and 46 transitions. Second operand has 44 states, 44 states have (on average 2.2954545454545454) internal successors, (101), 44 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:45:12,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:45:12,977 INFO L93 Difference]: Finished difference Result 82 states and 90 transitions. [2021-10-29 04:45:12,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-29 04:45:12,978 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 2.2954545454545454) internal successors, (101), 44 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-29 04:45:12,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:45:12,979 INFO L225 Difference]: With dead ends: 82 [2021-10-29 04:45:12,979 INFO L226 Difference]: Without dead ends: 53 [2021-10-29 04:45:12,981 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 899 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=629, Invalid=2793, Unknown=0, NotChecked=0, Total=3422 [2021-10-29 04:45:12,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-10-29 04:45:12,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-10-29 04:45:12,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 51 states have (on average 1.0784313725490196) internal successors, (55), 52 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) [2021-10-29 04:45:12,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 55 transitions. [2021-10-29 04:45:12,990 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 55 transitions. Word has length 33 [2021-10-29 04:45:12,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:45:12,991 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 55 transitions. [2021-10-29 04:45:12,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 2.2954545454545454) internal successors, (101), 44 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:45:12,991 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2021-10-29 04:45:12,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-10-29 04:45:12,992 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:45:12,993 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:45:13,008 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-10-29 04:45:13,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-10-29 04:45:13,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-29 04:45:13,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:45:13,609 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-29 04:45:13,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:45:13,609 INFO L85 PathProgramCache]: Analyzing trace with hash -968074037, now seen corresponding path program 1 times [2021-10-29 04:45:13,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:45:13,610 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [130161188] [2021-10-29 04:45:13,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:45:13,610 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:45:13,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:45:13,611 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:45:13,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-29 04:45:13,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:45:13,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-29 04:45:13,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:45:14,918 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 04:45:14,918 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:45:16,000 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 04:45:16,001 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:45:16,001 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [130161188] [2021-10-29 04:45:16,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [130161188] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 04:45:16,002 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [264840910] [2021-10-29 04:45:16,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:45:16,002 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-29 04:45:16,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/cvc4 [2021-10-29 04:45:16,002 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-29 04:45:16,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-10-29 04:45:16,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:45:16,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-29 04:45:16,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:45:17,774 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 1 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:45:17,774 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:45:20,393 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 1 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:45:20,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [264840910] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 04:45:20,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054137390] [2021-10-29 04:45:20,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:45:20,394 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:45:20,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:45:20,395 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 04:45:20,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-29 04:45:20,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:45:20,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-29 04:45:20,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:45:22,027 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 04:45:22,027 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:45:26,992 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:45:26,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2054137390] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 04:45:26,992 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-29 04:45:26,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 14, 14, 14, 17] total 71 [2021-10-29 04:45:26,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867756480] [2021-10-29 04:45:26,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2021-10-29 04:45:26,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:45:26,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2021-10-29 04:45:26,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=693, Invalid=4277, Unknown=0, NotChecked=0, Total=4970 [2021-10-29 04:45:26,997 INFO L87 Difference]: Start difference. First operand 53 states and 55 transitions. Second operand has 71 states, 71 states have (on average 2.2535211267605635) internal successors, (160), 71 states have internal predecessors, (160), 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) [2021-10-29 04:45:42,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:45:42,483 INFO L93 Difference]: Finished difference Result 131 states and 144 transitions. [2021-10-29 04:45:42,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-29 04:45:42,484 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 71 states have (on average 2.2535211267605635) internal successors, (160), 71 states have internal predecessors, (160), 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 43 [2021-10-29 04:45:42,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:45:42,486 INFO L225 Difference]: With dead ends: 131 [2021-10-29 04:45:42,486 INFO L226 Difference]: Without dead ends: 101 [2021-10-29 04:45:42,489 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 182 SyntacticMatches, 1 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2380 ImplicationChecksByTransitivity, 20.6s TimeCoverageRelationStatistics Valid=1347, Invalid=7773, Unknown=0, NotChecked=0, Total=9120 [2021-10-29 04:45:42,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-10-29 04:45:42,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 79. [2021-10-29 04:45:42,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 77 states have (on average 1.12987012987013) internal successors, (87), 78 states have internal predecessors, (87), 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) [2021-10-29 04:45:42,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 87 transitions. [2021-10-29 04:45:42,502 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 87 transitions. Word has length 43 [2021-10-29 04:45:42,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:45:42,502 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 87 transitions. [2021-10-29 04:45:42,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 71 states have (on average 2.2535211267605635) internal successors, (160), 71 states have internal predecessors, (160), 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) [2021-10-29 04:45:42,503 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 87 transitions. [2021-10-29 04:45:42,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-29 04:45:42,504 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:45:42,505 INFO L513 BasicCegarLoop]: trace histogram [8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:45:42,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-29 04:45:42,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2021-10-29 04:45:42,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-29 04:45:43,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:45:43,124 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-29 04:45:43,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:45:43,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1995109817, now seen corresponding path program 2 times [2021-10-29 04:45:43,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:45:43,132 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [20393931] [2021-10-29 04:45:43,132 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-29 04:45:43,132 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:45:43,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:45:43,133 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:45:43,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-29 04:45:43,953 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-29 04:45:43,953 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2021-10-29 04:45:43,954 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:45:44,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:45:44,460 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-29 04:45:44,460 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 04:45:44,461 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:45:44,463 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:45:44,463 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:45:44,463 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:45:44,464 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:45:44,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-29 04:45:44,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:45:44,680 INFO L731 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:45:44,682 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 04:45:44,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:45:44 BoogieIcfgContainer [2021-10-29 04:45:44,798 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 04:45:44,798 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:45:44,799 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:45:44,799 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:45:44,799 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:44:54" (3/4) ... [2021-10-29 04:45:44,802 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 04:45:44,882 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 04:45:44,882 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:45:44,884 INFO L168 Benchmark]: Toolchain (without parser) took 53861.82 ms. Allocated memory was 52.4 MB in the beginning and 159.4 MB in the end (delta: 107.0 MB). Free memory was 24.6 MB in the beginning and 73.1 MB in the end (delta: -48.6 MB). Peak memory consumption was 58.0 MB. Max. memory is 16.1 GB. [2021-10-29 04:45:44,884 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 52.4 MB. Free memory was 34.1 MB in the beginning and 34.0 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:45:44,885 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2411.44 ms. Allocated memory was 52.4 MB in the beginning and 81.8 MB in the end (delta: 29.4 MB). Free memory was 24.4 MB in the beginning and 40.8 MB in the end (delta: -16.5 MB). Peak memory consumption was 31.7 MB. Max. memory is 16.1 GB. [2021-10-29 04:45:44,885 INFO L168 Benchmark]: Boogie Procedure Inliner took 184.37 ms. Allocated memory is still 81.8 MB. Free memory was 40.8 MB in the beginning and 35.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:45:44,886 INFO L168 Benchmark]: Boogie Preprocessor took 99.03 ms. Allocated memory is still 81.8 MB. Free memory was 35.8 MB in the beginning and 32.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:45:44,886 INFO L168 Benchmark]: RCFGBuilder took 758.86 ms. Allocated memory was 81.8 MB in the beginning and 127.9 MB in the end (delta: 46.1 MB). Free memory was 32.4 MB in the beginning and 79.8 MB in the end (delta: -47.4 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. [2021-10-29 04:45:44,887 INFO L168 Benchmark]: TraceAbstraction took 50316.68 ms. Allocated memory was 127.9 MB in the beginning and 159.4 MB in the end (delta: 31.5 MB). Free memory was 79.1 MB in the beginning and 79.4 MB in the end (delta: -303.2 kB). Peak memory consumption was 30.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:45:44,887 INFO L168 Benchmark]: Witness Printer took 83.91 ms. Allocated memory is still 159.4 MB. Free memory was 79.4 MB in the beginning and 73.1 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-29 04:45:44,890 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 52.4 MB. Free memory was 34.1 MB in the beginning and 34.0 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2411.44 ms. Allocated memory was 52.4 MB in the beginning and 81.8 MB in the end (delta: 29.4 MB). Free memory was 24.4 MB in the beginning and 40.8 MB in the end (delta: -16.5 MB). Peak memory consumption was 31.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 184.37 ms. Allocated memory is still 81.8 MB. Free memory was 40.8 MB in the beginning and 35.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 99.03 ms. Allocated memory is still 81.8 MB. Free memory was 35.8 MB in the beginning and 32.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 758.86 ms. Allocated memory was 81.8 MB in the beginning and 127.9 MB in the end (delta: 46.1 MB). Free memory was 32.4 MB in the beginning and 79.8 MB in the end (delta: -47.4 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 50316.68 ms. Allocated memory was 127.9 MB in the beginning and 159.4 MB in the end (delta: 31.5 MB). Free memory was 79.1 MB in the beginning and 79.4 MB in the end (delta: -303.2 kB). Peak memory consumption was 30.5 MB. Max. memory is 16.1 GB. * Witness Printer took 83.91 ms. Allocated memory is still 159.4 MB. Free memory was 79.4 MB in the beginning and 73.1 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 223]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L5906] short d1[160]; [L5907] short d2[160]; [L5908] int c = __VERIFIER_nondet_int(); [L211] COND FALSE !(!cond) [L5911] unsigned size = __VERIFIER_nondet_uint(); [L211] COND FALSE !(!cond) [L211] COND FALSE !(!cond) [L211] COND FALSE !(!cond) [L5871] COND TRUE n > 0 [L5872] char *sp = (char *)s; [L5873] unsigned long i = 0; [L5873] COND TRUE i < n [L5874] sp[i] = c [L5873] i++ [L5873] COND TRUE i < n [L5874] sp[i] = c [L5873] i++ [L5873] COND TRUE i < n [L5874] sp[i] = c [L5873] i++ [L5873] COND TRUE i < n [L5874] sp[i] = c [L5873] i++ [L5873] COND TRUE i < n [L5874] sp[i] = c [L5873] i++ [L5873] COND TRUE i < n [L5874] sp[i] = c [L5873] i++ [L5873] COND TRUE i < n [L5874] sp[i] = c [L5873] i++ [L5873] COND TRUE i < n [L5874] sp[i] = c [L5873] i++ [L5873] COND FALSE !(i < n) [L5876] return s; [L211] COND FALSE !(!cond) [L223] COND FALSE !(!cond) [L5884] size_t num_uint64s = n >> 3; [L5885] size_t rem = n & 0x7; [L223] COND FALSE !(!cond) [L5888] uint64_t *d = (uint64_t *)dst; [L5890] size_t i = 0; [L5890] COND TRUE i < num_uint64s [L5891] d[i] = 0 [L5890] ++i [L5890] COND FALSE !(i < num_uint64s) [L5894] return dst; [L223] COND FALSE !(!cond) [L5655-L5658] COND TRUE len > 0 && a != ((void *)0) && b != ((void *)0) [L266] return __VERIFIER_nondet_ulong(); [L5660] size_t i = nondet_uint64_t(); [L211] COND FALSE !(!cond) [L5664] a[i] [L5664] b[i] [L223] COND TRUE !cond [L223] reach_error() - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 53 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 50.1s, OverallIterations: 10, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 21.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 352 SDtfs, 1796 SDslu, 1917 SDs, 0 SdLazy, 1606 SolverSat, 302 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 817 GetRequests, 597 SyntacticMatches, 2 SemanticMatches, 218 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3344 ImplicationChecksByTransitivity, 28.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred in iteration=9, InterpolantAutomatonStates: 109, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 35 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 19.9s InterpolantComputationTime, 435 NumberOfCodeBlocks, 435 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 750 ConstructedInterpolants, 51 QuantifiedInterpolants, 4228 SizeOfPredicates, 98 NumberOfNonLiveVariables, 1511 ConjunctsInSsa, 160 ConjunctsInUnsatCore, 26 InterpolantComputations, 14 PerfectInterpolantSequences, 5/246 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-29 04:45:44,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_374b6631-580e-472a-8aea-65f0c2d74b52/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...