./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_938f753c-affa-4e88-8b24-0317c7989a84/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_938f753c-affa-4e88-8b24-0317c7989a84/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_938f753c-affa-4e88-8b24-0317c7989a84/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_938f753c-affa-4e88-8b24-0317c7989a84/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_938f753c-affa-4e88-8b24-0317c7989a84/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_938f753c-affa-4e88-8b24-0317c7989a84/bin/utaipan-EQgc7hIp5V --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 32bit --witnessprinter.graph.data.programhash fe9b6b14bb3e253c1adf093226729b0222b0c43a1d6f2b7ff02fe6a17dc9f4e0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:06:28,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:06:28,509 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:06:28,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:06:28,566 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:06:28,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:06:28,574 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:06:28,581 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:06:28,583 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:06:28,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:06:28,593 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:06:28,595 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:06:28,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:06:28,598 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:06:28,601 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:06:28,607 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:06:28,609 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:06:28,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:06:28,612 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:06:28,622 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:06:28,625 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:06:28,627 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:06:28,630 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:06:28,631 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:06:28,635 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:06:28,636 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:06:28,636 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:06:28,638 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:06:28,639 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:06:28,640 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:06:28,641 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:06:28,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:06:28,644 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:06:28,646 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:06:28,647 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:06:28,648 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:06:28,648 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:06:28,649 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:06:28,649 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:06:28,650 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:06:28,651 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:06:28,652 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_938f753c-affa-4e88-8b24-0317c7989a84/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 03:06:28,703 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:06:28,705 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:06:28,706 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:06:28,706 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:06:28,713 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:06:28,714 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:06:28,714 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:06:28,714 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:06:28,714 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:06:28,715 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:06:28,716 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:06:28,716 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:06:28,716 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:06:28,716 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:06:28,717 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:06:28,717 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:06:28,717 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:06:28,718 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:06:28,719 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:06:28,719 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 03:06:28,719 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:06:28,720 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 03:06:28,720 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:06:28,720 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:06:28,720 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:06:28,721 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:06:28,722 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 03:06:28,723 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:06:28,723 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:06:28,723 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:06:28,724 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:06:28,724 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:06:28,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:06:28,724 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:06:28,725 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:06:28,725 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:06:28,725 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:06:28,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:06:28,726 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:06:28,726 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:06:28,726 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:06:28,726 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_938f753c-affa-4e88-8b24-0317c7989a84/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_938f753c-affa-4e88-8b24-0317c7989a84/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe9b6b14bb3e253c1adf093226729b0222b0c43a1d6f2b7ff02fe6a17dc9f4e0 [2021-11-23 03:06:28,969 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:06:28,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:06:28,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:06:28,993 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:06:28,994 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:06:28,995 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_938f753c-affa-4e88-8b24-0317c7989a84/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c [2021-11-23 03:06:29,069 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_938f753c-affa-4e88-8b24-0317c7989a84/bin/utaipan-EQgc7hIp5V/data/d999a5016/bdb3fbb123734771aa91f4758325540d/FLAG361c4e039 [2021-11-23 03:06:29,532 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:06:29,533 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_938f753c-affa-4e88-8b24-0317c7989a84/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c [2021-11-23 03:06:29,552 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_938f753c-affa-4e88-8b24-0317c7989a84/bin/utaipan-EQgc7hIp5V/data/d999a5016/bdb3fbb123734771aa91f4758325540d/FLAG361c4e039 [2021-11-23 03:06:29,939 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_938f753c-affa-4e88-8b24-0317c7989a84/bin/utaipan-EQgc7hIp5V/data/d999a5016/bdb3fbb123734771aa91f4758325540d [2021-11-23 03:06:29,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:06:29,943 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:06:29,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:06:29,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:06:29,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:06:29,951 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:06:29" (1/1) ... [2021-11-23 03:06:29,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a98bb7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:29, skipping insertion in model container [2021-11-23 03:06:29,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:06:29" (1/1) ... [2021-11-23 03:06:29,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:06:29,982 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:06:30,189 WARN L230 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_938f753c-affa-4e88-8b24-0317c7989a84/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c[1126,1139] [2021-11-23 03:06:30,213 WARN L230 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_938f753c-affa-4e88-8b24-0317c7989a84/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c[1880,1893] [2021-11-23 03:06:30,218 WARN L230 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_938f753c-affa-4e88-8b24-0317c7989a84/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c[2415,2428] [2021-11-23 03:06:30,222 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:06:30,230 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:06:30,258 WARN L230 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_938f753c-affa-4e88-8b24-0317c7989a84/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c[1126,1139] [2021-11-23 03:06:30,268 WARN L230 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_938f753c-affa-4e88-8b24-0317c7989a84/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c[1880,1893] [2021-11-23 03:06:30,281 WARN L230 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_938f753c-affa-4e88-8b24-0317c7989a84/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c[2415,2428] [2021-11-23 03:06:30,284 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:06:30,305 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:06:30,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:30 WrapperNode [2021-11-23 03:06:30,305 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:06:30,307 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:06:30,307 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:06:30,308 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:06:30,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:30" (1/1) ... [2021-11-23 03:06:30,336 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:30" (1/1) ... [2021-11-23 03:06:30,359 INFO L137 Inliner]: procedures = 15, calls = 20, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 124 [2021-11-23 03:06:30,360 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:06:30,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:06:30,361 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:06:30,361 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:06:30,370 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:30" (1/1) ... [2021-11-23 03:06:30,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:30" (1/1) ... [2021-11-23 03:06:30,372 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:30" (1/1) ... [2021-11-23 03:06:30,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:30" (1/1) ... [2021-11-23 03:06:30,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:30" (1/1) ... [2021-11-23 03:06:30,381 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:30" (1/1) ... [2021-11-23 03:06:30,382 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:30" (1/1) ... [2021-11-23 03:06:30,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:06:30,386 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:06:30,386 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:06:30,386 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:06:30,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:30" (1/1) ... [2021-11-23 03:06:30,395 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:06:30,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_938f753c-affa-4e88-8b24-0317c7989a84/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:06:30,418 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_938f753c-affa-4e88-8b24-0317c7989a84/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:06:30,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_938f753c-affa-4e88-8b24-0317c7989a84/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:06:30,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:06:30,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:06:30,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:06:30,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:06:30,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:06:30,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 03:06:30,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:06:30,516 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:06:30,518 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:06:30,708 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:06:30,720 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:06:30,720 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 03:06:30,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:06:30 BoogieIcfgContainer [2021-11-23 03:06:30,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:06:30,725 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:06:30,725 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:06:30,729 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:06:30,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:06:29" (1/3) ... [2021-11-23 03:06:30,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ec7aaa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:06:30, skipping insertion in model container [2021-11-23 03:06:30,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:06:30" (2/3) ... [2021-11-23 03:06:30,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ec7aaa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:06:30, skipping insertion in model container [2021-11-23 03:06:30,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:06:30" (3/3) ... [2021-11-23 03:06:30,733 INFO L111 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_4.i.v+nlh-reducer.c [2021-11-23 03:06:30,739 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:06:30,739 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-23 03:06:30,788 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:06:30,795 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 03:06:30,796 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-23 03:06:30,811 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 25 states have (on average 1.68) internal successors, (42), 28 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:06:30,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 03:06:30,816 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:06:30,817 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:06:30,818 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:06:30,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:06:30,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1546650789, now seen corresponding path program 1 times [2021-11-23 03:06:30,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:06:30,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127386106] [2021-11-23 03:06:30,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:06:30,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:06:31,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:06:31,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:06:31,188 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:06:31,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127386106] [2021-11-23 03:06:31,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127386106] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:06:31,191 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:06:31,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:06:31,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906287976] [2021-11-23 03:06:31,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:06:31,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:06:31,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:06:31,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:06:31,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:06:31,243 INFO L87 Difference]: Start difference. First operand has 29 states, 25 states have (on average 1.68) internal successors, (42), 28 states have internal predecessors, (42), 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 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:06:31,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:06:31,292 INFO L93 Difference]: Finished difference Result 42 states and 57 transitions. [2021-11-23 03:06:31,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:06:31,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2021-11-23 03:06:31,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:06:31,303 INFO L225 Difference]: With dead ends: 42 [2021-11-23 03:06:31,303 INFO L226 Difference]: Without dead ends: 28 [2021-11-23 03:06:31,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:06:31,309 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 17 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:06:31,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 55 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:06:31,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-11-23 03:06:31,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2021-11-23 03:06:31,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 25 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:06:31,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2021-11-23 03:06:31,344 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 8 [2021-11-23 03:06:31,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:06:31,344 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2021-11-23 03:06:31,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:06:31,345 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2021-11-23 03:06:31,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 03:06:31,346 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:06:31,346 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:06:31,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:06:31,346 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:06:31,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:06:31,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1412593997, now seen corresponding path program 1 times [2021-11-23 03:06:31,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:06:31,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588115652] [2021-11-23 03:06:31,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:06:31,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:06:31,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:06:31,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:06:31,387 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:06:31,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588115652] [2021-11-23 03:06:31,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588115652] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:06:31,387 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:06:31,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:06:31,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924700608] [2021-11-23 03:06:31,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:06:31,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:06:31,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:06:31,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:06:31,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:06:31,391 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:06:31,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:06:31,428 INFO L93 Difference]: Finished difference Result 53 states and 61 transitions. [2021-11-23 03:06:31,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:06:31,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2021-11-23 03:06:31,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:06:31,430 INFO L225 Difference]: With dead ends: 53 [2021-11-23 03:06:31,430 INFO L226 Difference]: Without dead ends: 33 [2021-11-23 03:06:31,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:06:31,432 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 16 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:06:31,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 34 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:06:31,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-11-23 03:06:31,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 26. [2021-11-23 03:06:31,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 25 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:06:31,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2021-11-23 03:06:31,440 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 9 [2021-11-23 03:06:31,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:06:31,441 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2021-11-23 03:06:31,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:06:31,441 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2021-11-23 03:06:31,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 03:06:31,442 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:06:31,442 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:06:31,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 03:06:31,443 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:06:31,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:06:31,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1344104488, now seen corresponding path program 1 times [2021-11-23 03:06:31,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:06:31,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192397148] [2021-11-23 03:06:31,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:06:31,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:06:31,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:06:31,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:06:31,490 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:06:31,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192397148] [2021-11-23 03:06:31,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192397148] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:06:31,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:06:31,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:06:31,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66211225] [2021-11-23 03:06:31,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:06:31,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:06:31,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:06:31,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:06:31,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:06:31,493 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:06:31,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:06:31,528 INFO L93 Difference]: Finished difference Result 46 states and 53 transitions. [2021-11-23 03:06:31,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:06:31,529 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2021-11-23 03:06:31,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:06:31,530 INFO L225 Difference]: With dead ends: 46 [2021-11-23 03:06:31,531 INFO L226 Difference]: Without dead ends: 44 [2021-11-23 03:06:31,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:06:31,533 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 22 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:06:31,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 76 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:06:31,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-11-23 03:06:31,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 28. [2021-11-23 03:06:31,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 25 states have (on average 1.28) internal successors, (32), 27 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:06:31,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2021-11-23 03:06:31,541 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 9 [2021-11-23 03:06:31,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:06:31,541 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2021-11-23 03:06:31,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:06:31,542 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2021-11-23 03:06:31,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 03:06:31,542 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:06:31,542 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:06:31,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 03:06:31,543 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:06:31,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:06:31,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1220471443, now seen corresponding path program 1 times [2021-11-23 03:06:31,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:06:31,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623046031] [2021-11-23 03:06:31,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:06:31,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:06:31,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:06:31,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:06:31,587 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:06:31,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623046031] [2021-11-23 03:06:31,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623046031] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:06:31,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:06:31,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:06:31,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594067398] [2021-11-23 03:06:31,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:06:31,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:06:31,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:06:31,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:06:31,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:06:31,590 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:06:31,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:06:31,646 INFO L93 Difference]: Finished difference Result 49 states and 56 transitions. [2021-11-23 03:06:31,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:06:31,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2021-11-23 03:06:31,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:06:31,650 INFO L225 Difference]: With dead ends: 49 [2021-11-23 03:06:31,650 INFO L226 Difference]: Without dead ends: 29 [2021-11-23 03:06:31,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:06:31,653 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 8 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:06:31,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 31 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:06:31,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-11-23 03:06:31,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 23. [2021-11-23 03:06:31,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 22 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) [2021-11-23 03:06:31,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2021-11-23 03:06:31,659 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 10 [2021-11-23 03:06:31,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:06:31,659 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2021-11-23 03:06:31,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:06:31,660 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2021-11-23 03:06:31,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 03:06:31,660 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:06:31,660 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:06:31,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 03:06:31,661 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:06:31,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:06:31,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1299008504, now seen corresponding path program 1 times [2021-11-23 03:06:31,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:06:31,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948955558] [2021-11-23 03:06:31,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:06:31,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:06:31,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:06:33,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:06:33,378 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:06:33,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948955558] [2021-11-23 03:06:33,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948955558] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:06:33,380 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:06:33,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 03:06:33,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076968931] [2021-11-23 03:06:33,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:06:33,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 03:06:33,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:06:33,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 03:06:33,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-23 03:06:33,382 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:06:33,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:06:33,776 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2021-11-23 03:06:33,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 03:06:33,777 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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 15 [2021-11-23 03:06:33,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:06:33,778 INFO L225 Difference]: With dead ends: 39 [2021-11-23 03:06:33,778 INFO L226 Difference]: Without dead ends: 24 [2021-11-23 03:06:33,778 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-11-23 03:06:33,780 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 37 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:06:33,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 38 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 03:06:33,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-11-23 03:06:33,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-11-23 03:06:33,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 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) [2021-11-23 03:06:33,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2021-11-23 03:06:33,786 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 15 [2021-11-23 03:06:33,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:06:33,787 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2021-11-23 03:06:33,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:06:33,787 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2021-11-23 03:06:33,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 03:06:33,788 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:06:33,788 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:06:33,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 03:06:33,789 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:06:33,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:06:33,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1999003900, now seen corresponding path program 1 times [2021-11-23 03:06:33,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:06:33,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699751979] [2021-11-23 03:06:33,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:06:33,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:06:33,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:06:33,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:06:33,835 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:06:33,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699751979] [2021-11-23 03:06:33,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699751979] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:06:33,836 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:06:33,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 03:06:33,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525553025] [2021-11-23 03:06:33,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:06:33,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 03:06:33,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:06:33,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 03:06:33,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 03:06:33,838 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) [2021-11-23 03:06:33,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:06:33,909 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2021-11-23 03:06:33,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 03:06:33,910 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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 [2021-11-23 03:06:33,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:06:33,911 INFO L225 Difference]: With dead ends: 37 [2021-11-23 03:06:33,911 INFO L226 Difference]: Without dead ends: 35 [2021-11-23 03:06:33,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-23 03:06:33,924 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 39 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:06:33,925 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 86 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:06:33,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-11-23 03:06:33,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 22. [2021-11-23 03:06:33,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 21 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:06:33,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2021-11-23 03:06:33,932 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 16 [2021-11-23 03:06:33,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:06:33,933 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2021-11-23 03:06:33,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) [2021-11-23 03:06:33,934 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2021-11-23 03:06:33,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 03:06:33,935 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:06:33,936 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:06:33,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 03:06:33,936 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:06:33,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:06:33,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1488428289, now seen corresponding path program 1 times [2021-11-23 03:06:33,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:06:33,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039140062] [2021-11-23 03:06:33,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:06:33,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:06:33,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:06:34,124 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:06:34,125 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:06:34,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039140062] [2021-11-23 03:06:34,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039140062] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:06:34,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945282468] [2021-11-23 03:06:34,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:06:34,127 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:06:34,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_938f753c-affa-4e88-8b24-0317c7989a84/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:06:34,133 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_938f753c-affa-4e88-8b24-0317c7989a84/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:06:34,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_938f753c-affa-4e88-8b24-0317c7989a84/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 03:06:34,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:06:34,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 03:06:34,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:06:34,447 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:06:34,448 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:06:34,528 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:06:34,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945282468] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:06:34,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1308811195] [2021-11-23 03:06:34,549 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2021-11-23 03:06:34,550 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:06:34,555 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:06:34,560 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:06:34,560 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:06:34,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:06:34,673 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-23 03:06:34,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2021-11-23 03:06:34,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:06:34,717 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 03:06:34,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-23 03:06:35,129 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:06:39,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1308811195] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:06:39,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-23 03:06:39,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [6, 4, 4] total 21 [2021-11-23 03:06:39,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817723075] [2021-11-23 03:06:39,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:06:39,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-23 03:06:39,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:06:39,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-23 03:06:39,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2021-11-23 03:06:39,027 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 14 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 13 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) [2021-11-23 03:06:39,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:06:39,344 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2021-11-23 03:06:39,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-23 03:06:39,346 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 13 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 17 [2021-11-23 03:06:39,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:06:39,347 INFO L225 Difference]: With dead ends: 36 [2021-11-23 03:06:39,347 INFO L226 Difference]: Without dead ends: 29 [2021-11-23 03:06:39,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2021-11-23 03:06:39,348 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 21 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:06:39,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 23 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 03:06:39,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-11-23 03:06:39,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 25. [2021-11-23 03:06:39,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 24 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) [2021-11-23 03:06:39,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2021-11-23 03:06:39,354 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 17 [2021-11-23 03:06:39,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:06:39,354 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2021-11-23 03:06:39,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 13 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) [2021-11-23 03:06:39,354 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2021-11-23 03:06:39,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 03:06:39,355 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:06:39,355 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:06:39,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_938f753c-affa-4e88-8b24-0317c7989a84/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 03:06:39,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_938f753c-affa-4e88-8b24-0317c7989a84/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:06:39,556 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:06:39,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:06:39,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1177646914, now seen corresponding path program 1 times [2021-11-23 03:06:39,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:06:39,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345611896] [2021-11-23 03:06:39,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:06:39,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:06:39,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:06:39,799 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:06:39,800 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:06:39,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345611896] [2021-11-23 03:06:39,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345611896] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:06:39,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053588778] [2021-11-23 03:06:39,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:06:39,800 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:06:39,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_938f753c-affa-4e88-8b24-0317c7989a84/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:06:39,801 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_938f753c-affa-4e88-8b24-0317c7989a84/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:06:39,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_938f753c-affa-4e88-8b24-0317c7989a84/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 03:06:39,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:06:39,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 03:06:39,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:06:39,993 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:06:39,994 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:06:40,097 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:06:40,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053588778] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:06:40,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [497197581] [2021-11-23 03:06:40,100 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2021-11-23 03:06:40,100 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:06:40,100 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:06:40,100 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:06:40,101 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:06:40,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:06:40,147 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 03:06:40,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-23 03:06:40,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:06:40,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-23 03:06:40,631 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:06:46,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [497197581] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:06:46,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-23 03:06:46,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [9, 4, 4] total 27 [2021-11-23 03:06:46,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148409920] [2021-11-23 03:06:46,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:06:46,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-23 03:06:46,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:06:46,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-23 03:06:46,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=551, Unknown=0, NotChecked=0, Total=702 [2021-11-23 03:06:46,329 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 17 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:06:47,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:06:47,444 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2021-11-23 03:06:47,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-23 03:06:47,445 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 16 states have internal predecessors, (21), 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 24 [2021-11-23 03:06:47,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:06:47,445 INFO L225 Difference]: With dead ends: 25 [2021-11-23 03:06:47,446 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 03:06:47,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 53 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=168, Invalid=588, Unknown=0, NotChecked=0, Total=756 [2021-11-23 03:06:47,447 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 17 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-23 03:06:47,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 2 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-23 03:06:47,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 03:06:47,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 03:06:47,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:06:47,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 03:06:47,449 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2021-11-23 03:06:47,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:06:47,449 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 03:06:47,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:06:47,450 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 03:06:47,450 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 03:06:47,452 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-11-23 03:06:47,453 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2021-11-23 03:06:47,453 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2021-11-23 03:06:47,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_938f753c-affa-4e88-8b24-0317c7989a84/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 03:06:47,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_938f753c-affa-4e88-8b24-0317c7989a84/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:06:47,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 03:06:54,051 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 147) no Hoare annotation was computed. [2021-11-23 03:06:54,051 INFO L858 garLoopResultBuilder]: For program point L60(lines 60 93) no Hoare annotation was computed. [2021-11-23 03:06:54,051 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 73) no Hoare annotation was computed. [2021-11-23 03:06:54,051 INFO L854 garLoopResultBuilder]: At program point L151(lines 29 152) the Hoare annotation is: false [2021-11-23 03:06:54,052 INFO L858 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-11-23 03:06:54,052 INFO L858 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-11-23 03:06:54,052 INFO L858 garLoopResultBuilder]: For program point L40(lines 40 139) no Hoare annotation was computed. [2021-11-23 03:06:54,052 INFO L861 garLoopResultBuilder]: At program point L131(lines 98 132) the Hoare annotation is: true [2021-11-23 03:06:54,052 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-23 03:06:54,052 INFO L854 garLoopResultBuilder]: At program point L156(lines 26 157) the Hoare annotation is: (or (= |ULTIMATE.start_main_~main__loop_entered~0#1| 0) (let ((.cse2 (+ |ULTIMATE.start_main_~main__index2~0#1| 1))) (let ((.cse0 (mod |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1| 4294967296)) (.cse1 (mod .cse2 4294967296)) (.cse4 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= 45 (select |#length| 2)) (< .cse0 .cse1) (= |ULTIMATE.start_main_~__tmp_1~0#1| 1) (= ~__tmp_155_0~0 |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1|) (= 2 (select |#length| 1)) (< .cse1 100000) (= ~__tmp_155_0~0 1) (= (select |#valid| 3) 1) (= |ULTIMATE.start_main_~main__loop_entered~0#1| 1) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#main__array~0#1.base|) (= ~__return_136~0 0) (= (select |#valid| 1) 1) (= (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1| 1) |ULTIMATE.start_main_~main__index1~0#1|) (= 400000 (select |#length| |ULTIMATE.start_main_~#main__array~0#1.base|)) (= .cse2 |ULTIMATE.start_main_~main____CPAchecker_TMP_2~0#1|) (let ((.cse3 (select |#memory_int| |ULTIMATE.start_main_~#main__array~0#1.base|))) (= (mod (select .cse3 (+ |ULTIMATE.start_main_~#main__array~0#1.offset| (* (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296))) 4))) 4294967296) (mod (select .cse3 (+ |ULTIMATE.start_main_~#main__array~0#1.offset| (* (ite (<= .cse1 2147483647) .cse1 (+ .cse1 (- 4294967296))) 4))) 4294967296))) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~#main__array~0#1.base|) 1) (= (select .cse4 0) 48) (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~0#1| 1) (= (select .cse4 1) 0) (<= (mod |ULTIMATE.start_main_~main__index2~0#1| 4294967296) (mod |ULTIMATE.start_main_~main__index1~0#1| 4294967296)) (= ~__return_main~0 0) (= |ULTIMATE.start_main_~#main__array~0#1.offset| 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))))) [2021-11-23 03:06:54,053 INFO L858 garLoopResultBuilder]: For program point L57(lines 57 133) no Hoare annotation was computed. [2021-11-23 03:06:54,053 INFO L858 garLoopResultBuilder]: For program point L24(lines 24 162) no Hoare annotation was computed. [2021-11-23 03:06:54,053 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 42) no Hoare annotation was computed. [2021-11-23 03:06:54,053 INFO L854 garLoopResultBuilder]: At program point L119(lines 99 128) the Hoare annotation is: (let ((.cse31 (select |#memory_int| 1)) (.cse15 (select |#memory_int| |ULTIMATE.start_main_~#main__array~0#1.base|)) (.cse17 (mod |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1| 4294967296))) (let ((.cse0 (= (select |#length| 3) 12)) (.cse1 (= 45 (select |#length| 2))) (.cse3 (= |ULTIMATE.start_main_~__tmp_1~0#1| 1)) (.cse4 (= ~__tmp_155_0~0 |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1|)) (.cse8 (= 2 (select |#length| 1))) (.cse9 (= ~__tmp_155_0~0 1)) (.cse10 (= (select |#valid| 3) 1)) (.cse11 (= |ULTIMATE.start_main_~main__loop_entered~0#1| 1)) (.cse12 (< |#StackHeapBarrier| |ULTIMATE.start_main_~#main__array~0#1.base|)) (.cse13 (= ~__return_136~0 0)) (.cse14 (= (select |#valid| 1) 1)) (.cse2 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1| 1)) (.cse16 (= 400000 (select |#length| |ULTIMATE.start_main_~#main__array~0#1.base|))) (.cse18 (mod (select .cse15 (+ |ULTIMATE.start_main_~#main__array~0#1.offset| (* (ite (<= .cse17 2147483647) .cse17 (+ .cse17 (- 4294967296))) 4))) 4294967296)) (.cse19 (= (select |#valid| 0) 0)) (.cse20 (= (select |#valid| 2) 1)) (.cse21 (= |#NULL.offset| 0)) (.cse22 (= (select |#valid| |ULTIMATE.start_main_~#main__array~0#1.base|) 1)) (.cse23 (= (select .cse31 0) 48)) (.cse24 (= (select .cse31 1) 0)) (.cse5 (mod |ULTIMATE.start_main_~main__index2~0#1| 4294967296)) (.cse25 (= ~__return_main~0 0)) (.cse26 (= |ULTIMATE.start_main_~#main__array~0#1.offset| 0)) (.cse27 (< 0 |#StackHeapBarrier|)) (.cse28 (= |#NULL.base| 0))) (or (let ((.cse6 (mod (+ 4294967295 |ULTIMATE.start_main_~main__index2~0#1|) 4294967296)) (.cse7 (mod |ULTIMATE.start_main_~main____CPAchecker_TMP_4~0#1| 4294967296))) (and (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~0#1| |ULTIMATE.start_main_~__tmp_1~0#1|) .cse0 .cse1 (= .cse2 |ULTIMATE.start_main_~main____CPAchecker_TMP_4~0#1|) (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~2#1| |ULTIMATE.start_main_~__tmp_3~0#1|) .cse3 (= |ULTIMATE.start_main_~main__index2~0#1| |ULTIMATE.start_main_~main____CPAchecker_TMP_2~0#1|) .cse4 (< .cse5 100000) (< .cse6 .cse7) (= (+ |ULTIMATE.start_main_~main__index1~0#1| 1) |ULTIMATE.start_main_~main____CPAchecker_TMP_4~0#1|) .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 (= (ite (= (mod (select .cse15 (+ (* (ite (<= .cse6 2147483647) .cse6 (+ .cse6 (- 4294967296))) 4) |ULTIMATE.start_main_~#main__array~0#1.offset|)) 4294967296) (mod (select .cse15 (+ |ULTIMATE.start_main_~#main__array~0#1.offset| (* (ite (<= .cse7 2147483647) .cse7 (+ .cse7 (- 4294967296))) 4))) 4294967296)) 1 0) |ULTIMATE.start_main_~__tmp_3~0#1|) .cse16 (< .cse17 .cse5) (= .cse18 (mod (select .cse15 (+ (* (ite (<= .cse5 2147483647) .cse5 (+ .cse5 (- 4294967296))) 4) |ULTIMATE.start_main_~#main__array~0#1.offset|)) 4294967296)) .cse19 .cse20 .cse21 (= (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_3~0#1| 1) |ULTIMATE.start_main_~main__index2~0#1|) .cse22 .cse23 .cse24 .cse25 .cse26 .cse27 .cse28)) (let ((.cse30 (+ |ULTIMATE.start_main_~main__index2~0#1| 1))) (let ((.cse29 (mod .cse30 4294967296))) (and .cse0 .cse1 (< .cse17 .cse29) .cse3 .cse4 .cse8 (< .cse29 100000) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 (= .cse2 |ULTIMATE.start_main_~main__index1~0#1|) .cse16 (= .cse30 |ULTIMATE.start_main_~main____CPAchecker_TMP_2~0#1|) (= .cse18 (mod (select .cse15 (+ |ULTIMATE.start_main_~#main__array~0#1.offset| (* (ite (<= .cse29 2147483647) .cse29 (+ .cse29 (- 4294967296))) 4))) 4294967296)) .cse19 .cse20 .cse21 .cse22 .cse23 (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~0#1| 1) .cse24 (<= .cse5 (mod |ULTIMATE.start_main_~main__index1~0#1| 4294967296)) .cse25 .cse26 .cse27 .cse28)))))) [2021-11-23 03:06:54,054 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 03:06:54,054 INFO L858 garLoopResultBuilder]: For program point L62(lines 62 88) no Hoare annotation was computed. [2021-11-23 03:06:54,054 INFO L858 garLoopResultBuilder]: For program point L29(lines 29 152) no Hoare annotation was computed. [2021-11-23 03:06:54,054 INFO L854 garLoopResultBuilder]: At program point L87(lines 62 88) the Hoare annotation is: (let ((.cse1 (+ |ULTIMATE.start_main_~main__index2~0#1| 1))) (let ((.cse0 (mod .cse1 4294967296)) (.cse2 (select |#memory_int| 1))) (and (= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| 1) (= (select |#length| 3) 12) (= 45 (select |#length| 2)) (= ~__tmp_155_0~0 |ULTIMATE.start_main_~__tmp_1~0#1|) (< (mod |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1| 4294967296) .cse0) (= |ULTIMATE.start_main_~__tmp_1~0#1| 1) (= ~__tmp_155_0~0 |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1|) (= 2 (select |#length| 1)) (< .cse0 100000) (= (select |#valid| 3) 1) (= |ULTIMATE.start_main_~main__loop_entered~0#1| 1) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#main__array~0#1.base|) (= ~__return_136~0 0) (<= (+ |ULTIMATE.start_main_~main__index1~0#1| 1 (* 4294967296 (div |ULTIMATE.start_main_~main__index2~0#1| 4294967296))) (+ (* 4294967296 (div |ULTIMATE.start_main_~main__index1~0#1| 4294967296)) |ULTIMATE.start_main_~main__index2~0#1|)) (= (select |#valid| 1) 1) (= (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1| 1) |ULTIMATE.start_main_~main__index1~0#1|) (= 400000 (select |#length| |ULTIMATE.start_main_~#main__array~0#1.base|)) (= .cse1 |ULTIMATE.start_main_~main____CPAchecker_TMP_2~0#1|) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~#main__array~0#1.base|) 1) (= (select .cse2 0) 48) (let ((.cse3 (select |#memory_int| |ULTIMATE.start_main_~#main__array~0#1.base|))) (= (mod (select .cse3 (+ |ULTIMATE.start_main_~#main__array~0#1.offset| (* (let ((.cse4 (mod (+ 4294967295 |ULTIMATE.start_main_~main__index1~0#1|) 4294967296))) (ite (<= .cse4 2147483647) .cse4 (+ (- 4294967296) .cse4))) 4))) 4294967296) (mod (select .cse3 (+ |ULTIMATE.start_main_~#main__array~0#1.offset| (* (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296))) 4))) 4294967296))) (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~0#1| 1) (= (select .cse2 1) 0) (= ~__return_main~0 0) (= |ULTIMATE.start_main_~#main__array~0#1.offset| 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0)))) [2021-11-23 03:06:54,055 INFO L858 garLoopResultBuilder]: For program point L21(lines 21 167) no Hoare annotation was computed. [2021-11-23 03:06:54,055 INFO L858 garLoopResultBuilder]: For program point L50(lines 50 138) no Hoare annotation was computed. [2021-11-23 03:06:54,055 INFO L854 garLoopResultBuilder]: At program point L79(lines 46 139) the Hoare annotation is: (let ((.cse25 (select |#memory_int| 1)) (.cse24 (= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1| 1))) (let ((.cse0 (= (select |#length| 3) 12)) (.cse1 (= 45 (select |#length| 2))) (.cse2 (= ~__tmp_155_0~0 |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1|)) (.cse3 (= 2 (select |#length| 1))) (.cse5 (= (select |#valid| 3) 1)) (.cse7 (< |#StackHeapBarrier| |ULTIMATE.start_main_~#main__array~0#1.base|)) (.cse8 (let ((.cse29 (* 4294967296 (div |ULTIMATE.start_main_~main__index2~0#1| 4294967296)))) (let ((.cse26 (<= |ULTIMATE.start_main_~main__index2~0#1| (+ 99999 .cse29))) (.cse27 (<= (+ |ULTIMATE.start_main_~main__index1~0#1| 1 .cse29) (+ (* 4294967296 (div |ULTIMATE.start_main_~main__index1~0#1| 4294967296)) |ULTIMATE.start_main_~main__index2~0#1|))) (.cse28 (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~0#1| 1))) (or (and (not (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~1#1| 0)) .cse26 .cse27 (not (= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| 0)) .cse28) (and .cse26 .cse27 .cse24 .cse28))))) (.cse9 (= ~__return_136~0 0)) (.cse10 (= (select |#valid| 1) 1)) (.cse11 (= 400000 (select |#length| |ULTIMATE.start_main_~#main__array~0#1.base|))) (.cse13 (= (select |#valid| 0) 0)) (.cse14 (= (select |#valid| 2) 1)) (.cse15 (= |#NULL.offset| 0)) (.cse16 (= (select |#valid| |ULTIMATE.start_main_~#main__array~0#1.base|) 1)) (.cse17 (= (select .cse25 0) 48)) (.cse19 (= (select .cse25 1) 0)) (.cse20 (= ~__return_main~0 0)) (.cse21 (= |ULTIMATE.start_main_~#main__array~0#1.offset| 0)) (.cse22 (< 0 |#StackHeapBarrier|)) (.cse23 (= |#NULL.base| 0))) (or (let ((.cse12 (+ |ULTIMATE.start_main_~main__index2~0#1| 1))) (let ((.cse6 (mod (+ 4294967295 |ULTIMATE.start_main_~main__index1~0#1|) 4294967296)) (.cse4 (mod .cse12 4294967296))) (and (= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| 1) .cse0 (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~1#1| |ULTIMATE.start_main_~__tmp_2~0#1|) .cse1 (= ~__tmp_155_0~0 |ULTIMATE.start_main_~__tmp_1~0#1|) (= |ULTIMATE.start_main_~__tmp_1~0#1| 1) .cse2 .cse3 (< .cse4 100000) .cse5 (= |ULTIMATE.start_main_~main__loop_entered~0#1| 1) (< .cse6 100000) .cse7 .cse8 .cse9 .cse10 (= (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1| 1) |ULTIMATE.start_main_~main__index1~0#1|) .cse11 (= .cse12 |ULTIMATE.start_main_~main____CPAchecker_TMP_2~0#1|) .cse13 .cse14 .cse15 .cse16 .cse17 (let ((.cse18 (select |#memory_int| |ULTIMATE.start_main_~#main__array~0#1.base|))) (= (mod (select .cse18 (+ |ULTIMATE.start_main_~#main__array~0#1.offset| (* (ite (<= .cse6 2147483647) .cse6 (+ (- 4294967296) .cse6)) 4))) 4294967296) (mod (select .cse18 (+ |ULTIMATE.start_main_~#main__array~0#1.offset| (* (ite (<= .cse4 2147483647) .cse4 (+ .cse4 (- 4294967296))) 4))) 4294967296))) .cse19 .cse20 .cse21 .cse22 (= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| |ULTIMATE.start_main_~__tmp_2~0#1|) .cse23))) (and (= |ULTIMATE.start_main_~main__loop_entered~0#1| 0) .cse0 .cse1 .cse2 .cse3 .cse5 .cse7 .cse8 .cse9 .cse10 .cse11 .cse24 .cse13 .cse14 .cse15 .cse16 .cse17 (= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1| |ULTIMATE.start_main_~__tmp_1~0#1|) .cse19 .cse20 .cse21 .cse22 .cse23)))) [2021-11-23 03:06:54,055 INFO L858 garLoopResultBuilder]: For program point L108(lines 108 120) no Hoare annotation was computed. [2021-11-23 03:06:54,055 INFO L858 garLoopResultBuilder]: For program point L42(line 42) no Hoare annotation was computed. [2021-11-23 03:06:54,056 INFO L858 garLoopResultBuilder]: For program point L71(lines 71 80) no Hoare annotation was computed. [2021-11-23 03:06:54,056 INFO L861 garLoopResultBuilder]: At program point L166(lines 14 168) the Hoare annotation is: true [2021-11-23 03:06:54,056 INFO L854 garLoopResultBuilder]: At program point L92(lines 60 93) the Hoare annotation is: false [2021-11-23 03:06:54,056 INFO L858 garLoopResultBuilder]: For program point L26(lines 26 157) no Hoare annotation was computed. [2021-11-23 03:06:54,056 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 110) no Hoare annotation was computed. [2021-11-23 03:06:54,057 INFO L854 garLoopResultBuilder]: At program point L146(lines 31 147) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div |ULTIMATE.start_main_~main__index2~0#1| 4294967296))) (.cse1 (select |#memory_int| 1))) (and (= |ULTIMATE.start_main_~main__loop_entered~0#1| 0) (= (select |#length| 3) 12) (= 45 (select |#length| 2)) (= ~__tmp_155_0~0 0) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#main__array~0#1.base|) (= ~__return_136~0 0) (<= |ULTIMATE.start_main_~main__index2~0#1| (+ 99999 .cse0)) (<= (+ |ULTIMATE.start_main_~main__index1~0#1| 1 .cse0) (+ (* 4294967296 (div |ULTIMATE.start_main_~main__index1~0#1| 4294967296)) |ULTIMATE.start_main_~main__index2~0#1|)) (= (select |#valid| 1) 1) (= 400000 (select |#length| |ULTIMATE.start_main_~#main__array~0#1.base|)) (= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1| 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~#main__array~0#1.base|) 1) (= (select .cse1 0) 48) (= (select .cse1 1) 0) (= ~__return_main~0 0) (= |ULTIMATE.start_main_~#main__array~0#1.offset| 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2021-11-23 03:06:54,060 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:06:54,061 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 03:06:54,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:06:54 BoogieIcfgContainer [2021-11-23 03:06:54,129 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 03:06:54,130 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 03:06:54,130 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 03:06:54,131 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 03:06:54,131 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:06:30" (3/4) ... [2021-11-23 03:06:54,134 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 03:06:54,147 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-11-23 03:06:54,148 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-23 03:06:54,148 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-23 03:06:54,148 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 03:06:54,214 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_938f753c-affa-4e88-8b24-0317c7989a84/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 03:06:54,214 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 03:06:54,215 INFO L158 Benchmark]: Toolchain (without parser) took 24272.25ms. Allocated memory was 102.8MB in the beginning and 148.9MB in the end (delta: 46.1MB). Free memory was 73.0MB in the beginning and 93.0MB in the end (delta: -20.0MB). Peak memory consumption was 27.2MB. Max. memory is 16.1GB. [2021-11-23 03:06:54,216 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 102.8MB. Free memory was 56.9MB in the beginning and 56.8MB in the end (delta: 46.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:06:54,216 INFO L158 Benchmark]: CACSL2BoogieTranslator took 360.06ms. Allocated memory is still 102.8MB. Free memory was 72.8MB in the beginning and 77.5MB in the end (delta: -4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 03:06:54,216 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.34ms. Allocated memory is still 102.8MB. Free memory was 77.5MB in the beginning and 75.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 03:06:54,218 INFO L158 Benchmark]: Boogie Preprocessor took 24.32ms. Allocated memory is still 102.8MB. Free memory was 75.8MB in the beginning and 74.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:06:54,219 INFO L158 Benchmark]: RCFGBuilder took 337.54ms. Allocated memory is still 102.8MB. Free memory was 74.4MB in the beginning and 62.9MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 03:06:54,219 INFO L158 Benchmark]: TraceAbstraction took 23404.47ms. Allocated memory was 102.8MB in the beginning and 148.9MB in the end (delta: 46.1MB). Free memory was 62.2MB in the beginning and 98.3MB in the end (delta: -36.1MB). Peak memory consumption was 72.7MB. Max. memory is 16.1GB. [2021-11-23 03:06:54,221 INFO L158 Benchmark]: Witness Printer took 84.28ms. Allocated memory is still 148.9MB. Free memory was 98.3MB in the beginning and 93.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 03:06:54,225 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 102.8MB. Free memory was 56.9MB in the beginning and 56.8MB in the end (delta: 46.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 360.06ms. Allocated memory is still 102.8MB. Free memory was 72.8MB in the beginning and 77.5MB in the end (delta: -4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.34ms. Allocated memory is still 102.8MB. Free memory was 77.5MB in the beginning and 75.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.32ms. Allocated memory is still 102.8MB. Free memory was 75.8MB in the beginning and 74.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 337.54ms. Allocated memory is still 102.8MB. Free memory was 74.4MB in the beginning and 62.9MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 23404.47ms. Allocated memory was 102.8MB in the beginning and 148.9MB in the end (delta: 46.1MB). Free memory was 62.2MB in the beginning and 98.3MB in the end (delta: -36.1MB). Peak memory consumption was 72.7MB. Max. memory is 16.1GB. * Witness Printer took 84.28ms. Allocated memory is still 148.9MB. Free memory was 98.3MB in the beginning and 93.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * 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 - PositiveResult [Line: 42]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 73]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 110]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 23.3s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.4s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 177 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 177 mSDsluCounter, 345 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 189 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 446 IncrementalHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 157 mSDtfsCounter, 446 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 174 GetRequests, 104 SyntacticMatches, 3 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 10.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 63, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 48 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 24 NumberOfFragments, 1362 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 3162 FormulaSimplificationTreeSizeReductionInter, 6.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 149 NumberOfCodeBlocks, 149 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 178 ConstructedInterpolants, 0 QuantifiedInterpolants, 3709 SizeOfPredicates, 4 NumberOfNonLiveVariables, 228 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 12/21 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: OVERALL_TIME: 1.1s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 35, DAG_INTERPRETER_EARLY_EXITS: 2, TOOLS_POST_APPLICATIONS: 47, TOOLS_POST_TIME: 0.7s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 47, TOOLS_QUANTIFIERELIM_TIME: 0.7s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 90, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 4, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 35, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 3, LOOP_SUMMARIZER_CACHE_MISSES: 3, LOOP_SUMMARIZER_OVERALL_TIME: 0.2s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.2s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 438, DAG_COMPRESSION_RETAINED_NODES: 99, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: main__loop_entered == 0 || ((((((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && 45 == unknown-#length-unknown[2]) && main____CPAchecker_TMP_1 % 4294967296 < (main__index2 + 1) % 4294967296) && __tmp_1 == 1) && __tmp_155_0 == main____CPAchecker_TMP_0) && 2 == unknown-#length-unknown[1]) && (main__index2 + 1) % 4294967296 < 100000) && __tmp_155_0 == 1) && \valid[3] == 1) && main__loop_entered == 1) && unknown-#StackHeapBarrier-unknown < main__array) && __return_136 == 0) && \valid[1] == 1) && main____CPAchecker_TMP_1 + 1 == main__index1) && 400000 == unknown-#length-unknown[main__array]) && main__index2 + 1 == main____CPAchecker_TMP_2) && unknown-#memory_int-unknown[main__array][main__array + (if main____CPAchecker_TMP_1 % 4294967296 <= 2147483647 then main____CPAchecker_TMP_1 % 4294967296 else main____CPAchecker_TMP_1 % 4294967296 + -4294967296) * 4] % 4294967296 == unknown-#memory_int-unknown[main__array][main__array + (if (main__index2 + 1) % 4294967296 <= 2147483647 then (main__index2 + 1) % 4294967296 else (main__index2 + 1) % 4294967296 + -4294967296) * 4] % 4294967296) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && \valid[main__array] == 1) && unknown-#memory_int-unknown[1][0] == 48) && __VERIFIER_assert__cond == 1) && unknown-#memory_int-unknown[1][1] == 0) && main__index2 % 4294967296 <= main__index1 % 4294967296) && __return_main == 0) && main__array == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((__VERIFIER_assert__cond == __tmp_1 && unknown-#length-unknown[3] == 12) && 45 == unknown-#length-unknown[2]) && main____CPAchecker_TMP_1 + 1 == main____CPAchecker_TMP_4) && __VERIFIER_assert__cond == __tmp_3) && __tmp_1 == 1) && main__index2 == main____CPAchecker_TMP_2) && __tmp_155_0 == main____CPAchecker_TMP_0) && main__index2 % 4294967296 < 100000) && (4294967295 + main__index2) % 4294967296 < main____CPAchecker_TMP_4 % 4294967296) && main__index1 + 1 == main____CPAchecker_TMP_4) && 2 == unknown-#length-unknown[1]) && __tmp_155_0 == 1) && \valid[3] == 1) && main__loop_entered == 1) && unknown-#StackHeapBarrier-unknown < main__array) && __return_136 == 0) && \valid[1] == 1) && (if unknown-#memory_int-unknown[main__array][(if (4294967295 + main__index2) % 4294967296 <= 2147483647 then (4294967295 + main__index2) % 4294967296 else (4294967295 + main__index2) % 4294967296 + -4294967296) * 4 + main__array] % 4294967296 == unknown-#memory_int-unknown[main__array][main__array + (if main____CPAchecker_TMP_4 % 4294967296 <= 2147483647 then main____CPAchecker_TMP_4 % 4294967296 else main____CPAchecker_TMP_4 % 4294967296 + -4294967296) * 4] % 4294967296 then 1 else 0) == __tmp_3) && 400000 == unknown-#length-unknown[main__array]) && main____CPAchecker_TMP_1 % 4294967296 < main__index2 % 4294967296) && unknown-#memory_int-unknown[main__array][main__array + (if main____CPAchecker_TMP_1 % 4294967296 <= 2147483647 then main____CPAchecker_TMP_1 % 4294967296 else main____CPAchecker_TMP_1 % 4294967296 + -4294967296) * 4] % 4294967296 == unknown-#memory_int-unknown[main__array][(if main__index2 % 4294967296 <= 2147483647 then main__index2 % 4294967296 else main__index2 % 4294967296 + -4294967296) * 4 + main__array] % 4294967296) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && main____CPAchecker_TMP_3 + 1 == main__index2) && \valid[main__array] == 1) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#memory_int-unknown[1][1] == 0) && __return_main == 0) && main__array == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || ((((((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && 45 == unknown-#length-unknown[2]) && main____CPAchecker_TMP_1 % 4294967296 < (main__index2 + 1) % 4294967296) && __tmp_1 == 1) && __tmp_155_0 == main____CPAchecker_TMP_0) && 2 == unknown-#length-unknown[1]) && (main__index2 + 1) % 4294967296 < 100000) && __tmp_155_0 == 1) && \valid[3] == 1) && main__loop_entered == 1) && unknown-#StackHeapBarrier-unknown < main__array) && __return_136 == 0) && \valid[1] == 1) && main____CPAchecker_TMP_1 + 1 == main__index1) && 400000 == unknown-#length-unknown[main__array]) && main__index2 + 1 == main____CPAchecker_TMP_2) && unknown-#memory_int-unknown[main__array][main__array + (if main____CPAchecker_TMP_1 % 4294967296 <= 2147483647 then main____CPAchecker_TMP_1 % 4294967296 else main____CPAchecker_TMP_1 % 4294967296 + -4294967296) * 4] % 4294967296 == unknown-#memory_int-unknown[main__array][main__array + (if (main__index2 + 1) % 4294967296 <= 2147483647 then (main__index2 + 1) % 4294967296 else (main__index2 + 1) % 4294967296 + -4294967296) * 4] % 4294967296) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && \valid[main__array] == 1) && unknown-#memory_int-unknown[1][0] == 48) && __VERIFIER_assert__cond == 1) && unknown-#memory_int-unknown[1][1] == 0) && main__index2 % 4294967296 <= main__index1 % 4294967296) && __return_main == 0) && main__array == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 98]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: (((((((((((((((((((((main__loop_entered == 0 && unknown-#length-unknown[3] == 12) && 45 == unknown-#length-unknown[2]) && __tmp_155_0 == 0) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && unknown-#StackHeapBarrier-unknown < main__array) && __return_136 == 0) && main__index2 <= 99999 + 4294967296 * (main__index2 / 4294967296)) && main__index1 + 1 + 4294967296 * (main__index2 / 4294967296) <= 4294967296 * (main__index1 / 4294967296) + main__index2) && \valid[1] == 1) && 400000 == unknown-#length-unknown[main__array]) && main____CPAchecker_TMP_0 == 1) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && \valid[main__array] == 1) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#memory_int-unknown[1][1] == 0) && __return_main == 0) && main__array == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0 - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((main____CPAchecker_TMP_0 == 1 && unknown-#length-unknown[3] == 12) && __VERIFIER_assert__cond == __tmp_2) && 45 == unknown-#length-unknown[2]) && __tmp_155_0 == __tmp_1) && __tmp_1 == 1) && __tmp_155_0 == main____CPAchecker_TMP_0) && 2 == unknown-#length-unknown[1]) && (main__index2 + 1) % 4294967296 < 100000) && \valid[3] == 1) && main__loop_entered == 1) && (4294967295 + main__index1) % 4294967296 < 100000) && unknown-#StackHeapBarrier-unknown < main__array) && (((((!(__VERIFIER_assert__cond == 0) && main__index2 <= 99999 + 4294967296 * (main__index2 / 4294967296)) && main__index1 + 1 + 4294967296 * (main__index2 / 4294967296) <= 4294967296 * (main__index1 / 4294967296) + main__index2) && !(main____CPAchecker_TMP_0 == 0)) && __VERIFIER_assert__cond == 1) || (((main__index2 <= 99999 + 4294967296 * (main__index2 / 4294967296) && main__index1 + 1 + 4294967296 * (main__index2 / 4294967296) <= 4294967296 * (main__index1 / 4294967296) + main__index2) && main____CPAchecker_TMP_0 == 1) && __VERIFIER_assert__cond == 1))) && __return_136 == 0) && \valid[1] == 1) && main____CPAchecker_TMP_1 + 1 == main__index1) && 400000 == unknown-#length-unknown[main__array]) && main__index2 + 1 == main____CPAchecker_TMP_2) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && \valid[main__array] == 1) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#memory_int-unknown[main__array][main__array + (if (4294967295 + main__index1) % 4294967296 <= 2147483647 then (4294967295 + main__index1) % 4294967296 else -4294967296 + (4294967295 + main__index1) % 4294967296) * 4] % 4294967296 == unknown-#memory_int-unknown[main__array][main__array + (if (main__index2 + 1) % 4294967296 <= 2147483647 then (main__index2 + 1) % 4294967296 else (main__index2 + 1) % 4294967296 + -4294967296) * 4] % 4294967296) && unknown-#memory_int-unknown[1][1] == 0) && __return_main == 0) && main__array == 0) && 0 < unknown-#StackHeapBarrier-unknown) && main____CPAchecker_TMP_0 == __tmp_2) && #NULL == 0) || ((((((((((((((((((((((main__loop_entered == 0 && unknown-#length-unknown[3] == 12) && 45 == unknown-#length-unknown[2]) && __tmp_155_0 == main____CPAchecker_TMP_0) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && unknown-#StackHeapBarrier-unknown < main__array) && (((((!(__VERIFIER_assert__cond == 0) && main__index2 <= 99999 + 4294967296 * (main__index2 / 4294967296)) && main__index1 + 1 + 4294967296 * (main__index2 / 4294967296) <= 4294967296 * (main__index1 / 4294967296) + main__index2) && !(main____CPAchecker_TMP_0 == 0)) && __VERIFIER_assert__cond == 1) || (((main__index2 <= 99999 + 4294967296 * (main__index2 / 4294967296) && main__index1 + 1 + 4294967296 * (main__index2 / 4294967296) <= 4294967296 * (main__index1 / 4294967296) + main__index2) && main____CPAchecker_TMP_0 == 1) && __VERIFIER_assert__cond == 1))) && __return_136 == 0) && \valid[1] == 1) && 400000 == unknown-#length-unknown[main__array]) && main____CPAchecker_TMP_0 == 1) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && \valid[main__array] == 1) && unknown-#memory_int-unknown[1][0] == 48) && main____CPAchecker_TMP_0 == __tmp_1) && unknown-#memory_int-unknown[1][1] == 0) && __return_main == 0) && main__array == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((main____CPAchecker_TMP_0 == 1 && unknown-#length-unknown[3] == 12) && 45 == unknown-#length-unknown[2]) && __tmp_155_0 == __tmp_1) && main____CPAchecker_TMP_1 % 4294967296 < (main__index2 + 1) % 4294967296) && __tmp_1 == 1) && __tmp_155_0 == main____CPAchecker_TMP_0) && 2 == unknown-#length-unknown[1]) && (main__index2 + 1) % 4294967296 < 100000) && \valid[3] == 1) && main__loop_entered == 1) && unknown-#StackHeapBarrier-unknown < main__array) && __return_136 == 0) && main__index1 + 1 + 4294967296 * (main__index2 / 4294967296) <= 4294967296 * (main__index1 / 4294967296) + main__index2) && \valid[1] == 1) && main____CPAchecker_TMP_1 + 1 == main__index1) && 400000 == unknown-#length-unknown[main__array]) && main__index2 + 1 == main____CPAchecker_TMP_2) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && \valid[main__array] == 1) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#memory_int-unknown[main__array][main__array + (if (4294967295 + main__index1) % 4294967296 <= 2147483647 then (4294967295 + main__index1) % 4294967296 else -4294967296 + (4294967295 + main__index1) % 4294967296) * 4] % 4294967296 == unknown-#memory_int-unknown[main__array][main__array + (if (main__index2 + 1) % 4294967296 <= 2147483647 then (main__index2 + 1) % 4294967296 else (main__index2 + 1) % 4294967296 + -4294967296) * 4] % 4294967296) && __VERIFIER_assert__cond == 1) && unknown-#memory_int-unknown[1][1] == 0) && __return_main == 0) && main__array == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-11-23 03:06:54,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_938f753c-affa-4e88-8b24-0317c7989a84/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE