./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be0700ef-46cb-45aa-8213-8a1637befc60/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be0700ef-46cb-45aa-8213-8a1637befc60/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be0700ef-46cb-45aa-8213-8a1637befc60/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be0700ef-46cb-45aa-8213-8a1637befc60/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be0700ef-46cb-45aa-8213-8a1637befc60/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be0700ef-46cb-45aa-8213-8a1637befc60/bin/utaipan-UUZaoUuFF8 --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 a425935058ca162f2ae5199ba6a1c3df525b690e27394effb254039bf608ee75 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:18:43,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:18:43,171 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:18:43,222 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:18:43,223 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:18:43,224 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:18:43,227 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:18:43,233 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:18:43,236 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:18:43,241 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:18:43,242 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:18:43,244 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:18:43,244 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:18:43,247 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:18:43,252 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:18:43,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:18:43,261 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:18:43,262 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:18:43,264 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:18:43,278 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:18:43,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:18:43,281 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:18:43,284 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:18:43,286 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:18:43,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:18:43,295 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:18:43,296 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:18:43,298 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:18:43,298 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:18:43,300 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:18:43,301 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:18:43,302 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:18:43,304 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:18:43,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:18:43,306 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:18:43,307 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:18:43,307 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:18:43,308 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:18:43,308 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:18:43,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:18:43,309 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:18:43,310 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be0700ef-46cb-45aa-8213-8a1637befc60/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 01:18:43,368 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:18:43,369 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:18:43,370 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:18:43,371 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:18:43,371 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:18:43,371 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:18:43,371 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:18:43,371 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:18:43,372 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:18:43,372 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:18:43,379 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:18:43,379 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:18:43,380 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:18:43,380 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:18:43,380 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:18:43,381 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:18:43,381 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:18:43,381 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:18:43,381 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:18:43,382 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:18:43,382 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:18:43,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:18:43,382 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:18:43,382 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:18:43,382 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:18:43,383 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:18:43,383 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:18:43,383 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:18:43,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:18:43,385 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:18:43,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:18:43,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:18:43,386 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:18:43,386 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:18:43,386 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:18:43,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:18:43,386 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:18:43,387 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:18:43,387 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:18:43,387 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_be0700ef-46cb-45aa-8213-8a1637befc60/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be0700ef-46cb-45aa-8213-8a1637befc60/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a425935058ca162f2ae5199ba6a1c3df525b690e27394effb254039bf608ee75 [2021-11-07 01:18:43,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:18:43,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:18:43,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:18:43,766 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:18:43,767 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:18:43,768 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be0700ef-46cb-45aa-8213-8a1637befc60/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i [2021-11-07 01:18:43,840 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be0700ef-46cb-45aa-8213-8a1637befc60/bin/utaipan-UUZaoUuFF8/data/4c6ab1877/14905b6c726f4818a715080b533f7dd4/FLAGc2a2dd3c2 [2021-11-07 01:18:44,377 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:18:44,378 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be0700ef-46cb-45aa-8213-8a1637befc60/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i [2021-11-07 01:18:44,386 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be0700ef-46cb-45aa-8213-8a1637befc60/bin/utaipan-UUZaoUuFF8/data/4c6ab1877/14905b6c726f4818a715080b533f7dd4/FLAGc2a2dd3c2 [2021-11-07 01:18:44,708 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be0700ef-46cb-45aa-8213-8a1637befc60/bin/utaipan-UUZaoUuFF8/data/4c6ab1877/14905b6c726f4818a715080b533f7dd4 [2021-11-07 01:18:44,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:18:44,713 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:18:44,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:18:44,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:18:44,740 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:18:44,741 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:18:44" (1/1) ... [2021-11-07 01:18:44,745 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3adfc5d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:44, skipping insertion in model container [2021-11-07 01:18:44,745 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:18:44" (1/1) ... [2021-11-07 01:18:44,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:18:44,777 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:18:45,022 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be0700ef-46cb-45aa-8213-8a1637befc60/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i[919,932] [2021-11-07 01:18:45,042 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:18:45,052 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:18:45,073 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be0700ef-46cb-45aa-8213-8a1637befc60/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i[919,932] [2021-11-07 01:18:45,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:18:45,099 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:18:45,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:45 WrapperNode [2021-11-07 01:18:45,099 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:18:45,101 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:18:45,101 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:18:45,101 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:18:45,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:45" (1/1) ... [2021-11-07 01:18:45,119 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:45" (1/1) ... [2021-11-07 01:18:45,147 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:18:45,148 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:18:45,148 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:18:45,148 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:18:45,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:45" (1/1) ... [2021-11-07 01:18:45,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:45" (1/1) ... [2021-11-07 01:18:45,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:45" (1/1) ... [2021-11-07 01:18:45,162 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:45" (1/1) ... [2021-11-07 01:18:45,170 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:45" (1/1) ... [2021-11-07 01:18:45,175 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:45" (1/1) ... [2021-11-07 01:18:45,177 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:45" (1/1) ... [2021-11-07 01:18:45,180 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:18:45,181 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:18:45,181 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:18:45,181 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:18:45,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:45" (1/1) ... [2021-11-07 01:18:45,192 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:18:45,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be0700ef-46cb-45aa-8213-8a1637befc60/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:18:45,248 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be0700ef-46cb-45aa-8213-8a1637befc60/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:18:45,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be0700ef-46cb-45aa-8213-8a1637befc60/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:18:45,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 01:18:45,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:18:45,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:18:45,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:18:45,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 01:18:45,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:18:45,899 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:18:45,900 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-11-07 01:18:45,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:18:45 BoogieIcfgContainer [2021-11-07 01:18:45,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:18:45,906 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:18:45,906 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:18:45,910 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:18:45,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:18:44" (1/3) ... [2021-11-07 01:18:45,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38b705c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:18:45, skipping insertion in model container [2021-11-07 01:18:45,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:18:45" (2/3) ... [2021-11-07 01:18:45,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38b705c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:18:45, skipping insertion in model container [2021-11-07 01:18:45,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:18:45" (3/3) ... [2021-11-07 01:18:45,930 INFO L111 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_4.i [2021-11-07 01:18:45,937 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:18:45,937 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-07 01:18:46,011 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:18:46,022 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 [2021-11-07 01:18:46,025 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-07 01:18:46,047 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:18:46,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-07 01:18:46,064 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:18:46,065 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-07 01:18:46,066 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:18:46,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:18:46,081 INFO L85 PathProgramCache]: Analyzing trace with hash 3539268, now seen corresponding path program 1 times [2021-11-07 01:18:46,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:18:46,098 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521303349] [2021-11-07 01:18:46,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:18:46,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:18:46,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:18:46,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:18:46,461 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:18:46,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521303349] [2021-11-07 01:18:46,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521303349] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:18:46,464 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:18:46,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 01:18:46,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017300253] [2021-11-07 01:18:46,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:18:46,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:18:46,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:18:46,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:18:46,494 INFO L87 Difference]: Start difference. First operand has 14 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-11-07 01:18:46,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:18:46,591 INFO L93 Difference]: Finished difference Result 38 states and 50 transitions. [2021-11-07 01:18:46,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:18:46,594 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2021-11-07 01:18:46,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:18:46,604 INFO L225 Difference]: With dead ends: 38 [2021-11-07 01:18:46,605 INFO L226 Difference]: Without dead ends: 21 [2021-11-07 01:18:46,608 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:18:46,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-07 01:18:46,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 14. [2021-11-07 01:18:46,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 1.3333333333333333) 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) [2021-11-07 01:18:46,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2021-11-07 01:18:46,651 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 4 [2021-11-07 01:18:46,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:18:46,651 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2021-11-07 01:18:46,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-11-07 01:18:46,652 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-11-07 01:18:46,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-07 01:18:46,653 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:18:46,653 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-07 01:18:46,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 01:18:46,654 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:18:46,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:18:46,656 INFO L85 PathProgramCache]: Analyzing trace with hash -831200400, now seen corresponding path program 1 times [2021-11-07 01:18:46,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:18:46,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880715963] [2021-11-07 01:18:46,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:18:46,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:18:46,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:18:46,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:18:46,715 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:18:46,715 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880715963] [2021-11-07 01:18:46,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880715963] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 01:18:46,716 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:18:46,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 01:18:46,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48771060] [2021-11-07 01:18:46,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:18:46,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:18:46,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:18:46,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:18:46,720 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-11-07 01:18:46,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:18:46,731 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2021-11-07 01:18:46,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:18:46,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2021-11-07 01:18:46,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:18:46,733 INFO L225 Difference]: With dead ends: 21 [2021-11-07 01:18:46,733 INFO L226 Difference]: Without dead ends: 15 [2021-11-07 01:18:46,734 INFO L786 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 [2021-11-07 01:18:46,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-11-07 01:18:46,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2021-11-07 01:18:46,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 1.25) internal successors, (15), 13 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) [2021-11-07 01:18:46,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2021-11-07 01:18:46,740 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 6 [2021-11-07 01:18:46,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:18:46,740 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2021-11-07 01:18:46,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-11-07 01:18:46,741 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2021-11-07 01:18:46,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-07 01:18:46,742 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:18:46,742 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2021-11-07 01:18:46,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 01:18:46,743 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:18:46,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:18:46,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1929390626, now seen corresponding path program 1 times [2021-11-07 01:18:46,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:18:46,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544598777] [2021-11-07 01:18:46,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:18:46,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:18:46,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:18:47,058 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:18:47,059 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:18:47,059 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544598777] [2021-11-07 01:18:47,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544598777] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 01:18:47,060 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197982612] [2021-11-07 01:18:47,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:18:47,061 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:18:47,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be0700ef-46cb-45aa-8213-8a1637befc60/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:18:47,067 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be0700ef-46cb-45aa-8213-8a1637befc60/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:18:47,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be0700ef-46cb-45aa-8213-8a1637befc60/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 01:18:47,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:18:47,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-07 01:18:47,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:18:47,942 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:18:47,943 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:18:48,237 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:18:48,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1197982612] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:18:48,238 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [425566662] [2021-11-07 01:18:48,270 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2021-11-07 01:18:48,271 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:18:48,280 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:18:48,288 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:18:48,289 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:18:48,335 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:48,338 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:48,340 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:48,340 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 01:18:48,342 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:18:48,343 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:48,345 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:18:48,348 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 154 [2021-11-07 01:18:48,386 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_24|], 21=[|v_#valid_35|]} [2021-11-07 01:18:48,402 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:18:48,402 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:48,403 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:48,410 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:48,412 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:18:48,413 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:48,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:48,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:48,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:48,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 01:18:48,443 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:48,444 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:18:48,446 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:48,447 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:18:48,447 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:48,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:48,515 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:48,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:48,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:48,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:48,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:48,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:48,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:48,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:48,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:48,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:18:48,554 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 31 treesize of output 30 [2021-11-07 01:18:48,556 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:48,561 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:18:48,563 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:48,564 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:18:48,565 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:18:48,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:48,597 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:48,599 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:48,604 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-11-07 01:18:48,608 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:18:48,608 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:280, output treesize:114 [2021-11-07 01:18:48,643 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:18:48,672 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 789 [2021-11-07 01:18:48,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:48,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:48,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:48,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:48,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:48,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:48,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:48,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:48,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:48,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:48,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:48,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:48,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:48,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:48,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:48,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:48,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:48,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:48,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:48,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:18:49,013 INFO L180 QuantifierPusher]: treesize reduction 30, result has 93.3 percent of original size [2021-11-07 01:18:49,032 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 446 [2021-11-07 01:18:49,050 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 01:18:49,567 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:18:49,567 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 01:18:49,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 12 [2021-11-07 01:18:49,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126719017] [2021-11-07 01:18:49,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 01:18:49,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:18:49,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 01:18:49,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2021-11-07 01:18:49,570 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 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) [2021-11-07 01:18:49,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:18:49,891 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2021-11-07 01:18:49,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 01:18:49,892 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 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 7 [2021-11-07 01:18:49,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:18:49,893 INFO L225 Difference]: With dead ends: 30 [2021-11-07 01:18:49,893 INFO L226 Difference]: Without dead ends: 28 [2021-11-07 01:18:49,894 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2021-11-07 01:18:49,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-11-07 01:18:49,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 11. [2021-11-07 01:18:49,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 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) [2021-11-07 01:18:49,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2021-11-07 01:18:49,899 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 7 [2021-11-07 01:18:49,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:18:49,899 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-11-07 01:18:49,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 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) [2021-11-07 01:18:49,900 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2021-11-07 01:18:49,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-07 01:18:49,900 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:18:49,901 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:18:49,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be0700ef-46cb-45aa-8213-8a1637befc60/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:18:50,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be0700ef-46cb-45aa-8213-8a1637befc60/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:18:50,102 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:18:50,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:18:50,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1344010634, now seen corresponding path program 1 times [2021-11-07 01:18:50,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:18:50,103 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24109408] [2021-11-07 01:18:50,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:18:50,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:18:50,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:18:50,762 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:18:50,763 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:18:50,763 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24109408] [2021-11-07 01:18:50,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24109408] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 01:18:50,763 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1617354604] [2021-11-07 01:18:50,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:18:50,764 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:18:50,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be0700ef-46cb-45aa-8213-8a1637befc60/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:18:50,765 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be0700ef-46cb-45aa-8213-8a1637befc60/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:18:50,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be0700ef-46cb-45aa-8213-8a1637befc60/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 01:18:51,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:18:51,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-07 01:18:51,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:18:53,913 INFO L354 Elim1Store]: treesize reduction 344, result has 2.0 percent of original size [2021-11-07 01:18:53,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 249 treesize of output 185 [2021-11-07 01:18:54,295 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:18:54,295 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:19:00,632 INFO L354 Elim1Store]: treesize reduction 599, result has 7.1 percent of original size [2021-11-07 01:19:00,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 1800 treesize of output 943 [2021-11-07 01:19:02,659 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:19:02,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1617354604] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:19:02,660 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2021-11-07 01:19:02,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [5] total 13 [2021-11-07 01:19:02,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592276165] [2021-11-07 01:19:02,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:19:02,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:19:02,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:19:02,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-11-07 01:19:02,668 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand has 10 states, 10 states have (on average 1.6) internal successors, (16), 10 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) [2021-11-07 01:19:03,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:19:03,302 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2021-11-07 01:19:03,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 01:19:03,304 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.6) internal successors, (16), 10 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 9 [2021-11-07 01:19:03,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:19:03,304 INFO L225 Difference]: With dead ends: 17 [2021-11-07 01:19:03,305 INFO L226 Difference]: Without dead ends: 0 [2021-11-07 01:19:03,305 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2021-11-07 01:19:03,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-07 01:19:03,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-07 01:19:03,305 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) [2021-11-07 01:19:03,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 01:19:03,306 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2021-11-07 01:19:03,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:19:03,306 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 01:19:03,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.6) internal successors, (16), 10 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) [2021-11-07 01:19:03,306 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-07 01:19:03,306 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-07 01:19:03,308 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:19:03,308 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:19:03,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be0700ef-46cb-45aa-8213-8a1637befc60/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:19:03,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be0700ef-46cb-45aa-8213-8a1637befc60/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-11-07 01:19:03,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-07 01:19:03,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:19:03,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:19:03,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:19:03,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:19:03,774 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 26) no Hoare annotation was computed. [2021-11-07 01:19:03,774 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-07 01:19:03,774 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 26) no Hoare annotation was computed. [2021-11-07 01:19:03,774 INFO L857 garLoopResultBuilder]: For program point L53(lines 53 59) no Hoare annotation was computed. [2021-11-07 01:19:03,774 INFO L853 garLoopResultBuilder]: At program point L45-1(lines 20 51) the Hoare annotation is: (let ((.cse2 (* 4294967296 (div ULTIMATE.start_main_~index2~0 4294967296)))) (or (let ((.cse0 (+ ULTIMATE.start_main_~index2~0 1))) (and (<= (+ ULTIMATE.start_main_~index1~0 (* 4294967296 (div .cse0 4294967296))) (+ ULTIMATE.start_main_~index2~0 (* 4294967296 (div (+ (- 1) ULTIMATE.start_main_~index1~0) 4294967296)) 1)) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (let ((.cse1 (select |#memory_int| |ULTIMATE.start_main_~#array~0.base|))) (= (mod (select .cse1 (+ (* (mod (+ ULTIMATE.start_main_~index1~0 4294967295) 4294967296) 4) |ULTIMATE.start_main_~#array~0.offset|)) 4294967296) (mod (select .cse1 (+ (* (mod .cse0 4294967296) 4) |ULTIMATE.start_main_~#array~0.offset|)) 4294967296))) (<= ULTIMATE.start_main_~index2~0 (+ 99998 .cse2)))) (and (<= ULTIMATE.start_main_~index1~0 (+ 99999 (* 4294967296 (div ULTIMATE.start_main_~index1~0 4294967296)))) (<= ULTIMATE.start_main_~index2~0 (+ 99999 .cse2)) (= ULTIMATE.start_main_~loop_entered~0 0)))) [2021-11-07 01:19:03,774 INFO L857 garLoopResultBuilder]: For program point L45-2(lines 34 61) no Hoare annotation was computed. [2021-11-07 01:19:03,775 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-07 01:19:03,775 INFO L857 garLoopResultBuilder]: For program point L25(lines 25 27) no Hoare annotation was computed. [2021-11-07 01:19:03,775 INFO L853 garLoopResultBuilder]: At program point L25-2(lines 23 29) the Hoare annotation is: (and (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= ULTIMATE.start_main_~index2~0 (+ 99999 (* 4294967296 (div ULTIMATE.start_main_~index2~0 4294967296)))) (< (mod ULTIMATE.start_main_~index1~0 4294967296) (mod ULTIMATE.start_main_~index2~0 4294967296))) [2021-11-07 01:19:03,775 INFO L857 garLoopResultBuilder]: For program point L25-3(lines 25 27) no Hoare annotation was computed. [2021-11-07 01:19:03,775 INFO L853 garLoopResultBuilder]: At program point L25-5(lines 23 29) the Hoare annotation is: (let ((.cse2 (+ ULTIMATE.start_main_~index2~0 1))) (let ((.cse0 (* 4294967296 (div .cse2 4294967296)))) (and (<= (+ ULTIMATE.start_main_~index1~0 .cse0) (+ ULTIMATE.start_main_~index2~0 (* 4294967296 (div (+ (- 1) ULTIMATE.start_main_~index1~0) 4294967296)) 1)) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (let ((.cse1 (select |#memory_int| |ULTIMATE.start_main_~#array~0.base|))) (= (mod (select .cse1 (+ (* (mod (+ ULTIMATE.start_main_~index1~0 4294967295) 4294967296) 4) |ULTIMATE.start_main_~#array~0.offset|)) 4294967296) (mod (select .cse1 (+ (* (mod .cse2 4294967296) 4) |ULTIMATE.start_main_~#array~0.offset|)) 4294967296))) (<= ULTIMATE.start_main_~index2~0 (+ 99998 .cse0))))) [2021-11-07 01:19:03,775 INFO L853 garLoopResultBuilder]: At program point L54-2(lines 54 58) the Hoare annotation is: (let ((.cse0 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond))) (or (let ((.cse1 (* 4294967296 (div ULTIMATE.start_main_~index2~0 4294967296)))) (and .cse0 (<= ULTIMATE.start_main_~index2~0 (+ 99999 .cse1)) (<= (+ ULTIMATE.start_main_~index1~0 .cse1 1) (+ ULTIMATE.start_main_~index2~0 (* 4294967296 (div ULTIMATE.start_main_~index1~0 4294967296)))))) (let ((.cse4 (+ ULTIMATE.start_main_~index2~0 1))) (let ((.cse2 (* 4294967296 (div .cse4 4294967296)))) (and (<= (+ ULTIMATE.start_main_~index1~0 .cse2) (+ ULTIMATE.start_main_~index2~0 (* 4294967296 (div (+ (- 1) ULTIMATE.start_main_~index1~0) 4294967296)) 1)) .cse0 (let ((.cse3 (select |#memory_int| |ULTIMATE.start_main_~#array~0.base|))) (= (mod (select .cse3 (+ (* (mod (+ ULTIMATE.start_main_~index1~0 4294967295) 4294967296) 4) |ULTIMATE.start_main_~#array~0.offset|)) 4294967296) (mod (select .cse3 (+ (* (mod .cse4 4294967296) 4) |ULTIMATE.start_main_~#array~0.offset|)) 4294967296))) (<= ULTIMATE.start_main_~index2~0 (+ 99998 .cse2))))))) [2021-11-07 01:19:03,775 INFO L857 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2021-11-07 01:19:03,775 INFO L857 garLoopResultBuilder]: For program point L26-1(line 26) no Hoare annotation was computed. [2021-11-07 01:19:03,777 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-07 01:19:03,779 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 01:19:03,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:19:03 BoogieIcfgContainer [2021-11-07 01:19:03,799 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 01:19:03,799 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 01:19:03,800 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 01:19:03,800 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 01:19:03,800 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:18:45" (3/4) ... [2021-11-07 01:19:03,804 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-07 01:19:03,813 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-11-07 01:19:03,814 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-07 01:19:03,814 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-07 01:19:03,814 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 01:19:03,857 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be0700ef-46cb-45aa-8213-8a1637befc60/bin/utaipan-UUZaoUuFF8/witness.graphml [2021-11-07 01:19:03,858 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 01:19:03,859 INFO L168 Benchmark]: Toolchain (without parser) took 19145.42 ms. Allocated memory was 127.9 MB in the beginning and 169.9 MB in the end (delta: 41.9 MB). Free memory was 85.3 MB in the beginning and 48.1 MB in the end (delta: 37.2 MB). Peak memory consumption was 78.9 MB. Max. memory is 16.1 GB. [2021-11-07 01:19:03,859 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 127.9 MB. Free memory is still 102.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:19:03,860 INFO L168 Benchmark]: CACSL2BoogieTranslator took 374.95 ms. Allocated memory is still 127.9 MB. Free memory was 85.1 MB in the beginning and 100.6 MB in the end (delta: -15.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:19:03,860 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.39 ms. Allocated memory is still 127.9 MB. Free memory was 100.6 MB in the beginning and 99.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:19:03,860 INFO L168 Benchmark]: Boogie Preprocessor took 32.16 ms. Allocated memory is still 127.9 MB. Free memory was 99.1 MB in the beginning and 98.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:19:03,861 INFO L168 Benchmark]: RCFGBuilder took 722.66 ms. Allocated memory is still 127.9 MB. Free memory was 98.0 MB in the beginning and 82.7 MB in the end (delta: 15.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-11-07 01:19:03,861 INFO L168 Benchmark]: TraceAbstraction took 17893.35 ms. Allocated memory was 127.9 MB in the beginning and 169.9 MB in the end (delta: 41.9 MB). Free memory was 81.7 MB in the beginning and 51.2 MB in the end (delta: 30.5 MB). Peak memory consumption was 75.0 MB. Max. memory is 16.1 GB. [2021-11-07 01:19:03,862 INFO L168 Benchmark]: Witness Printer took 58.30 ms. Allocated memory is still 169.9 MB. Free memory was 51.2 MB in the beginning and 48.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:19:03,864 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 127.9 MB. Free memory is still 102.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 374.95 ms. Allocated memory is still 127.9 MB. Free memory was 85.1 MB in the beginning and 100.6 MB in the end (delta: -15.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.39 ms. Allocated memory is still 127.9 MB. Free memory was 100.6 MB in the beginning and 99.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.16 ms. Allocated memory is still 127.9 MB. Free memory was 99.1 MB in the beginning and 98.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 722.66 ms. Allocated memory is still 127.9 MB. Free memory was 98.0 MB in the beginning and 82.7 MB in the end (delta: 15.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 17893.35 ms. Allocated memory was 127.9 MB in the beginning and 169.9 MB in the end (delta: 41.9 MB). Free memory was 81.7 MB in the beginning and 51.2 MB in the end (delta: 30.5 MB). Peak memory consumption was 75.0 MB. Max. memory is 16.1 GB. * Witness Printer took 58.30 ms. Allocated memory is still 169.9 MB. Free memory was 51.2 MB in the beginning and 48.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 26]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 26]: 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, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 17.7s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 39 SDtfs, 66 SDslu, 53 SDs, 0 SdLazy, 104 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 19 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 25 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 11 NumberOfFragments, 269 HoareAnnotationTreeSize, 4 FomulaSimplifications, 630 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 321 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 13.7s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 2968 SizeOfPredicates, 25 NumberOfNonLiveVariables, 134 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 5/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (1 == cond && index2 <= 99999 + 4294967296 * (index2 / 4294967296)) && index1 % 4294967296 < index2 % 4294967296 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: ((1 <= cond && index2 <= 99999 + 4294967296 * (index2 / 4294967296)) && index1 + 4294967296 * (index2 / 4294967296) + 1 <= index2 + 4294967296 * (index1 / 4294967296)) || (((index1 + 4294967296 * ((index2 + 1) / 4294967296) <= index2 + 4294967296 * ((-1 + index1) / 4294967296) + 1 && 1 <= cond) && unknown-#memory_int-unknown[array][(index1 + 4294967295) % 4294967296 * 4 + array] % 4294967296 == unknown-#memory_int-unknown[array][(index2 + 1) % 4294967296 * 4 + array] % 4294967296) && index2 <= 99998 + 4294967296 * ((index2 + 1) / 4294967296)) - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: ((index1 + 4294967296 * ((index2 + 1) / 4294967296) <= index2 + 4294967296 * ((-1 + index1) / 4294967296) + 1 && 1 <= cond) && unknown-#memory_int-unknown[array][(index1 + 4294967295) % 4294967296 * 4 + array] % 4294967296 == unknown-#memory_int-unknown[array][(index2 + 1) % 4294967296 * 4 + array] % 4294967296) && index2 <= 99998 + 4294967296 * ((index2 + 1) / 4294967296) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (((index1 + 4294967296 * ((index2 + 1) / 4294967296) <= index2 + 4294967296 * ((-1 + index1) / 4294967296) + 1 && 1 <= cond) && unknown-#memory_int-unknown[array][(index1 + 4294967295) % 4294967296 * 4 + array] % 4294967296 == unknown-#memory_int-unknown[array][(index2 + 1) % 4294967296 * 4 + array] % 4294967296) && index2 <= 99998 + 4294967296 * (index2 / 4294967296)) || ((index1 <= 99999 + 4294967296 * (index1 / 4294967296) && index2 <= 99999 + 4294967296 * (index2 / 4294967296)) && loop_entered == 0) RESULT: Ultimate proved your program to be correct! [2021-11-07 01:19:03,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be0700ef-46cb-45aa-8213-8a1637befc60/bin/utaipan-UUZaoUuFF8/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