./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark19_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf302084-9256-459a-aa26-ad09f34d0f66/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf302084-9256-459a-aa26-ad09f34d0f66/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf302084-9256-459a-aa26-ad09f34d0f66/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf302084-9256-459a-aa26-ad09f34d0f66/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark19_conjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf302084-9256-459a-aa26-ad09f34d0f66/bin/utaipan-SDwSMHVbGG/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf302084-9256-459a-aa26-ad09f34d0f66/bin/utaipan-SDwSMHVbGG --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2dd3364bf5e5337e36d5137f60eb9fb66edcf0c750f78ddc701b6a530fbd02a5 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:44:31,924 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:44:31,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:44:32,009 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:44:32,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:44:32,016 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:44:32,019 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:44:32,024 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:44:32,027 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:44:32,034 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:44:32,036 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:44:32,038 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:44:32,039 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:44:32,042 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:44:32,045 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:44:32,051 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:44:32,054 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:44:32,055 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:44:32,058 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:44:32,069 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:44:32,072 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:44:32,073 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:44:32,078 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:44:32,079 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:44:32,091 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:44:32,092 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:44:32,092 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:44:32,095 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:44:32,096 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:44:32,098 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:44:32,098 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:44:32,100 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:44:32,102 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:44:32,104 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:44:32,106 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:44:32,106 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:44:32,107 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:44:32,108 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:44:32,108 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:44:32,110 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:44:32,111 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:44:32,112 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf302084-9256-459a-aa26-ad09f34d0f66/bin/utaipan-SDwSMHVbGG/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-10-29 04:44:32,170 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:44:32,170 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:44:32,172 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:44:32,173 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:44:32,173 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:44:32,173 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:44:32,174 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 04:44:32,174 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:44:32,182 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:44:32,182 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 04:44:32,184 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 04:44:32,184 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:44:32,185 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 04:44:32,185 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 04:44:32,185 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 04:44:32,187 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:44:32,187 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:44:32,188 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 04:44:32,188 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:44:32,188 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:44:32,188 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:44:32,189 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:44:32,189 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:44:32,189 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:44:32,190 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-29 04:44:32,190 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:44:32,190 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:44:32,191 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:44:32,191 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:44:32,193 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:44:32,193 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:44:32,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:44:32,194 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:44:32,195 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:44:32,195 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:44:32,195 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 04:44:32,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:44:32,196 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:44:32,196 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:44:32,196 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:44:32,197 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_bf302084-9256-459a-aa26-ad09f34d0f66/bin/utaipan-SDwSMHVbGG/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf302084-9256-459a-aa26-ad09f34d0f66/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2dd3364bf5e5337e36d5137f60eb9fb66edcf0c750f78ddc701b6a530fbd02a5 [2021-10-29 04:44:32,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:44:32,650 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:44:32,653 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:44:32,654 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:44:32,655 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:44:32,656 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf302084-9256-459a-aa26-ad09f34d0f66/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/loop-zilu/benchmark19_conjunctive.i [2021-10-29 04:44:32,732 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf302084-9256-459a-aa26-ad09f34d0f66/bin/utaipan-SDwSMHVbGG/data/1f4fb2074/2f5cb644cbe04a5da2903c5aeff72f06/FLAG297c9e1f8 [2021-10-29 04:44:33,280 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:44:33,280 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf302084-9256-459a-aa26-ad09f34d0f66/sv-benchmarks/c/loop-zilu/benchmark19_conjunctive.i [2021-10-29 04:44:33,295 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf302084-9256-459a-aa26-ad09f34d0f66/bin/utaipan-SDwSMHVbGG/data/1f4fb2074/2f5cb644cbe04a5da2903c5aeff72f06/FLAG297c9e1f8 [2021-10-29 04:44:33,611 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf302084-9256-459a-aa26-ad09f34d0f66/bin/utaipan-SDwSMHVbGG/data/1f4fb2074/2f5cb644cbe04a5da2903c5aeff72f06 [2021-10-29 04:44:33,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:44:33,617 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:44:33,622 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:44:33,623 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:44:33,627 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:44:33,628 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:44:33" (1/1) ... [2021-10-29 04:44:33,631 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@425385e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:33, skipping insertion in model container [2021-10-29 04:44:33,631 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:44:33" (1/1) ... [2021-10-29 04:44:33,640 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:44:33,660 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:44:33,906 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_bf302084-9256-459a-aa26-ad09f34d0f66/sv-benchmarks/c/loop-zilu/benchmark19_conjunctive.i[873,886] [2021-10-29 04:44:33,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:44:33,927 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:44:33,943 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_bf302084-9256-459a-aa26-ad09f34d0f66/sv-benchmarks/c/loop-zilu/benchmark19_conjunctive.i[873,886] [2021-10-29 04:44:33,947 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:44:33,963 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:44:33,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:33 WrapperNode [2021-10-29 04:44:33,964 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:44:33,966 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:44:33,966 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:44:33,966 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:44:33,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:33" (1/1) ... [2021-10-29 04:44:33,984 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:33" (1/1) ... [2021-10-29 04:44:34,007 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:44:34,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:44:34,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:44:34,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:44:34,019 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:33" (1/1) ... [2021-10-29 04:44:34,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:33" (1/1) ... [2021-10-29 04:44:34,022 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:33" (1/1) ... [2021-10-29 04:44:34,022 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:33" (1/1) ... [2021-10-29 04:44:34,026 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:33" (1/1) ... [2021-10-29 04:44:34,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:33" (1/1) ... [2021-10-29 04:44:34,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:33" (1/1) ... [2021-10-29 04:44:34,034 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:44:34,036 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:44:34,036 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:44:34,036 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:44:34,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:33" (1/1) ... [2021-10-29 04:44:34,047 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:44:34,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf302084-9256-459a-aa26-ad09f34d0f66/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:44:34,079 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf302084-9256-459a-aa26-ad09f34d0f66/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:44:34,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf302084-9256-459a-aa26-ad09f34d0f66/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:44:34,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 04:44:34,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:44:34,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:44:34,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:44:34,481 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:44:34,482 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-29 04:44:34,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:44:34 BoogieIcfgContainer [2021-10-29 04:44:34,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:44:34,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:44:34,487 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:44:34,496 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:44:34,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:44:33" (1/3) ... [2021-10-29 04:44:34,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30095e5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:44:34, skipping insertion in model container [2021-10-29 04:44:34,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:44:33" (2/3) ... [2021-10-29 04:44:34,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30095e5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:44:34, skipping insertion in model container [2021-10-29 04:44:34,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:44:34" (3/3) ... [2021-10-29 04:44:34,502 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark19_conjunctive.i [2021-10-29 04:44:34,513 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:44:34,513 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-29 04:44:34,586 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:44:34,597 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 04:44:34,598 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-29 04:44:34,619 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 8 states have (on average 1.75) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:44:34,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 04:44:34,626 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:44:34,626 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-29 04:44:34,627 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-29 04:44:34,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:44:34,635 INFO L85 PathProgramCache]: Analyzing trace with hash 2092610, now seen corresponding path program 1 times [2021-10-29 04:44:34,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:44:34,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156959609] [2021-10-29 04:44:34,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:44:34,657 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:44:34,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:44:34,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:44:34,959 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:44:34,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156959609] [2021-10-29 04:44:34,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156959609] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:44:34,971 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:44:34,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 04:44:34,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855253599] [2021-10-29 04:44:34,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:44:34,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:44:35,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:44:35,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:44:35,046 INFO L87 Difference]: Start difference. First operand has 13 states, 8 states have (on average 1.75) internal successors, (14), 12 states have internal predecessors, (14), 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, 3 states have (on average 1.3333333333333333) 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) [2021-10-29 04:44:35,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:44:35,149 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2021-10-29 04:44:35,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 04:44:35,152 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) 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 [2021-10-29 04:44:35,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:44:35,162 INFO L225 Difference]: With dead ends: 13 [2021-10-29 04:44:35,163 INFO L226 Difference]: Without dead ends: 10 [2021-10-29 04:44:35,167 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 04:44:35,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-10-29 04:44:35,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-10-29 04:44:35,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 9 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) [2021-10-29 04:44:35,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-10-29 04:44:35,205 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 4 [2021-10-29 04:44:35,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:44:35,206 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-10-29 04:44:35,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) 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) [2021-10-29 04:44:35,206 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-10-29 04:44:35,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 04:44:35,207 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:44:35,207 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-29 04:44:35,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 04:44:35,212 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-29 04:44:35,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:44:35,216 INFO L85 PathProgramCache]: Analyzing trace with hash 64870960, now seen corresponding path program 1 times [2021-10-29 04:44:35,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:44:35,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419352439] [2021-10-29 04:44:35,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:44:35,218 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:44:35,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:44:35,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:44:35,306 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:44:35,307 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419352439] [2021-10-29 04:44:35,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419352439] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:44:35,308 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:44:35,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 04:44:35,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019463300] [2021-10-29 04:44:35,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:44:35,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:44:35,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:44:35,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:44:35,317 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:44:35,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:44:35,331 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2021-10-29 04:44:35,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:44:35,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2021-10-29 04:44:35,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:44:35,333 INFO L225 Difference]: With dead ends: 10 [2021-10-29 04:44:35,334 INFO L226 Difference]: Without dead ends: 9 [2021-10-29 04:44:35,335 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 [2021-10-29 04:44:35,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-10-29 04:44:35,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-10-29 04:44:35,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 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) [2021-10-29 04:44:35,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-10-29 04:44:35,340 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2021-10-29 04:44:35,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:44:35,341 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-10-29 04:44:35,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:44:35,342 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-10-29 04:44:35,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 04:44:35,343 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:44:35,343 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-29 04:44:35,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 04:44:35,344 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-29 04:44:35,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:44:35,358 INFO L85 PathProgramCache]: Analyzing trace with hash 2010999812, now seen corresponding path program 1 times [2021-10-29 04:44:35,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:44:35,359 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032430257] [2021-10-29 04:44:35,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:44:35,362 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:44:35,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:44:35,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:44:35,429 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:44:35,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032430257] [2021-10-29 04:44:35,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032430257] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:44:35,430 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:44:35,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 04:44:35,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775560833] [2021-10-29 04:44:35,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:44:35,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:44:35,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:44:35,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:44:35,434 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2021-10-29 04:44:35,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:44:35,458 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2021-10-29 04:44:35,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 04:44:35,459 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 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 [2021-10-29 04:44:35,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:44:35,460 INFO L225 Difference]: With dead ends: 9 [2021-10-29 04:44:35,460 INFO L226 Difference]: Without dead ends: 8 [2021-10-29 04:44:35,461 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 04:44:35,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-10-29 04:44:35,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-10-29 04:44:35,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 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) [2021-10-29 04:44:35,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2021-10-29 04:44:35,469 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2021-10-29 04:44:35,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:44:35,469 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2021-10-29 04:44:35,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2021-10-29 04:44:35,471 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2021-10-29 04:44:35,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 04:44:35,472 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:44:35,472 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:44:35,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-29 04:44:35,473 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-29 04:44:35,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:44:35,474 INFO L85 PathProgramCache]: Analyzing trace with hash -2083515214, now seen corresponding path program 1 times [2021-10-29 04:44:35,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:44:35,475 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918005942] [2021-10-29 04:44:35,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:44:35,476 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:44:35,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:44:35,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:44:35,568 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:44:35,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918005942] [2021-10-29 04:44:35,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918005942] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:44:35,574 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:44:35,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 04:44:35,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262263499] [2021-10-29 04:44:35,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:44:35,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:44:35,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:44:35,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:44:35,577 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:44:35,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:44:35,616 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2021-10-29 04:44:35,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 04:44:35,619 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 [2021-10-29 04:44:35,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:44:35,621 INFO L225 Difference]: With dead ends: 14 [2021-10-29 04:44:35,622 INFO L226 Difference]: Without dead ends: 13 [2021-10-29 04:44:35,623 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 [2021-10-29 04:44:35,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-29 04:44:35,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-29 04:44:35,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:44:35,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-10-29 04:44:35,631 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2021-10-29 04:44:35,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:44:35,632 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-10-29 04:44:35,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:44:35,634 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-10-29 04:44:35,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 04:44:35,636 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:44:35,636 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1] [2021-10-29 04:44:35,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-29 04:44:35,637 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-29 04:44:35,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:44:35,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1317414976, now seen corresponding path program 1 times [2021-10-29 04:44:35,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:44:35,641 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568308140] [2021-10-29 04:44:35,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:44:35,642 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:44:35,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:44:35,761 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:44:35,761 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:44:35,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568308140] [2021-10-29 04:44:35,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568308140] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 04:44:35,762 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85305551] [2021-10-29 04:44:35,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:44:35,762 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:44:35,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf302084-9256-459a-aa26-ad09f34d0f66/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:44:35,764 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf302084-9256-459a-aa26-ad09f34d0f66/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 04:44:35,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf302084-9256-459a-aa26-ad09f34d0f66/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-29 04:44:35,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:44:35,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-29 04:44:35,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:44:35,991 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 04:44:35,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:44:36,261 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:44:36,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85305551] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 04:44:36,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1441774548] [2021-10-29 04:44:36,287 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-10-29 04:44:36,287 INFO L166 IcfgInterpreter]: Building call graph [2021-10-29 04:44:36,292 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-29 04:44:36,298 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-29 04:44:36,299 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-29 04:44:36,335 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:44:36,340 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:44:36,342 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:44:36,342 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-10-29 04:44:36,346 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:44:36,348 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:44:36,348 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-10-29 04:44:36,352 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-10-29 04:44:36,379 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_8|], 10=[|v_#valid_9|]} [2021-10-29 04:44:36,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:44:36,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-10-29 04:44:36,404 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:44:36,405 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-10-29 04:44:36,406 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:44:36,406 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-10-29 04:44:36,407 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-29 04:44:36,409 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:44:36,426 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:44:36,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:44:36,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:44:36,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:44:36,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-29 04:44:36,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-29 04:44:36,447 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:44:36,450 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 04:44:36,451 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:44:36,451 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-29 04:44:36,452 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-29 04:44:36,452 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:44:36,464 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:44:36,466 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:44:36,469 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-10-29 04:44:36,470 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-29 04:44:36,470 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:110, output treesize:95 [2021-10-29 04:44:36,488 INFO L180 QuantifierPusher]: treesize reduction 10, result has 92.1 percent of original size [2021-10-29 04:44:36,494 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-10-29 04:44:36,499 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:44:36,506 INFO L185 QuantifierPusher]: treesize reduction 5, result has 95.4 percent of original size 103 [2021-10-29 04:44:36,511 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:44:36,541 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:44:36,612 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:44:36,726 INFO L180 QuantifierPusher]: treesize reduction 25, result has 91.4 percent of original size [2021-10-29 04:44:36,786 INFO L185 QuantifierPusher]: treesize reduction 8, result has 96.9 percent of original size 251 [2021-10-29 04:44:36,810 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.1 percent of original size [2021-10-29 04:44:36,829 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 255 [2021-10-29 04:44:36,843 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:44:36,912 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:44:36,915 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:44:36,917 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:44:36,920 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:44:36,921 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:44:36,958 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:44:36,970 INFO L180 QuantifierPusher]: treesize reduction 29, result has 65.5 percent of original size [2021-10-29 04:44:36,976 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-10-29 04:44:36,981 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:44:36,984 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-10-29 04:44:36,989 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:44:36,999 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:44:37,014 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:44:37,055 INFO L180 QuantifierPusher]: treesize reduction 10, result has 92.3 percent of original size [2021-10-29 04:44:37,069 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-29 04:44:37,074 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:44:37,081 INFO L185 QuantifierPusher]: treesize reduction 3, result has 94.8 percent of original size 55 [2021-10-29 04:44:37,094 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.2 percent of original size 106 [2021-10-29 04:44:37,105 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.6 percent of original size [2021-10-29 04:44:37,114 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 110 [2021-10-29 04:44:37,119 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:44:37,146 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:44:37,148 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:44:37,152 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:44:37,153 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:44:37,154 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:44:37,160 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:44:37,169 INFO L180 QuantifierPusher]: treesize reduction 29, result has 64.2 percent of original size [2021-10-29 04:44:37,173 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-10-29 04:44:37,175 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:44:37,180 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-10-29 04:44:37,188 INFO L180 QuantifierPusher]: treesize reduction 29, result has 64.2 percent of original size [2021-10-29 04:44:37,192 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-10-29 04:44:37,196 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:44:37,199 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-10-29 04:44:37,204 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:44:37,212 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:44:37,221 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:44:37,229 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:44:37,251 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:44:37,260 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:44:37,270 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:44:37,279 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:44:37,317 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-29 04:44:38,560 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 04:44:38,560 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-29 04:44:38,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 7] total 14 [2021-10-29 04:44:38,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710604553] [2021-10-29 04:44:38,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-29 04:44:38,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:44:38,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-29 04:44:38,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2021-10-29 04:44:38,563 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 15 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) [2021-10-29 04:44:38,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:44:38,670 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2021-10-29 04:44:38,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 04:44:38,671 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 15 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) Word has length 12 [2021-10-29 04:44:38,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:44:38,671 INFO L225 Difference]: With dead ends: 13 [2021-10-29 04:44:38,672 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 04:44:38,672 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 17 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=107, Invalid=493, Unknown=0, NotChecked=0, Total=600 [2021-10-29 04:44:38,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 04:44:38,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 04:44:38,673 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) [2021-10-29 04:44:38,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 04:44:38,673 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2021-10-29 04:44:38,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:44:38,673 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 04:44:38,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 15 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) [2021-10-29 04:44:38,674 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 04:44:38,674 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 04:44:38,676 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:44:38,676 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:44:38,677 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:44:38,677 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:44:38,705 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf302084-9256-459a-aa26-ad09f34d0f66/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-29 04:44:38,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf302084-9256-459a-aa26-ad09f34d0f66/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:44:38,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-29 04:44:38,892 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:44:38,903 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:44:38,928 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-10-29 04:44:38,929 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-29 04:44:38,929 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-10-29 04:44:38,930 INFO L857 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2021-10-29 04:44:38,930 INFO L857 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2021-10-29 04:44:38,930 INFO L857 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2021-10-29 04:44:38,930 INFO L857 garLoopResultBuilder]: For program point L25-2(line 25) no Hoare annotation was computed. [2021-10-29 04:44:38,930 INFO L857 garLoopResultBuilder]: For program point L25-3(line 25) no Hoare annotation was computed. [2021-10-29 04:44:38,930 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-10-29 04:44:38,931 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-10-29 04:44:38,931 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-29 04:44:38,931 INFO L853 garLoopResultBuilder]: At program point L28(lines 19 29) the Hoare annotation is: (<= ULTIMATE.start_main_~j~0 2147483647) [2021-10-29 04:44:38,932 INFO L853 garLoopResultBuilder]: At program point L24-2(lines 24 26) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~k~0) (<= ULTIMATE.start_main_~k~0 2147483647) (<= ULTIMATE.start_main_~j~0 ULTIMATE.start_main_~k~0)) [2021-10-29 04:44:38,935 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-10-29 04:44:38,936 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 04:44:38,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:44:38 BoogieIcfgContainer [2021-10-29 04:44:38,949 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 04:44:38,949 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:44:38,949 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:44:38,950 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:44:38,950 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:44:34" (3/4) ... [2021-10-29 04:44:38,954 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 04:44:38,963 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-10-29 04:44:38,964 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-29 04:44:38,964 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 04:44:38,964 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 04:44:39,002 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf302084-9256-459a-aa26-ad09f34d0f66/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 04:44:39,002 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:44:39,003 INFO L168 Benchmark]: Toolchain (without parser) took 5385.40 ms. Allocated memory was 90.2 MB in the beginning and 132.1 MB in the end (delta: 41.9 MB). Free memory was 53.8 MB in the beginning and 90.2 MB in the end (delta: -36.4 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:44:39,004 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 90.2 MB. Free memory is still 70.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:44:39,004 INFO L168 Benchmark]: CACSL2BoogieTranslator took 342.94 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 53.7 MB in the beginning and 85.1 MB in the end (delta: -31.4 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2021-10-29 04:44:39,005 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.04 ms. Allocated memory is still 109.1 MB. Free memory was 85.1 MB in the beginning and 83.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:44:39,005 INFO L168 Benchmark]: Boogie Preprocessor took 26.30 ms. Allocated memory is still 109.1 MB. Free memory was 83.6 MB in the beginning and 82.8 MB in the end (delta: 794.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:44:39,006 INFO L168 Benchmark]: RCFGBuilder took 449.21 ms. Allocated memory is still 109.1 MB. Free memory was 82.8 MB in the beginning and 71.3 MB in the end (delta: 11.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:44:39,006 INFO L168 Benchmark]: TraceAbstraction took 4462.00 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 71.0 MB in the beginning and 92.3 MB in the end (delta: -21.2 MB). Peak memory consumption was 3.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:44:39,007 INFO L168 Benchmark]: Witness Printer took 52.64 ms. Allocated memory is still 132.1 MB. Free memory was 92.3 MB in the beginning and 90.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:44:39,010 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 90.2 MB. Free memory is still 70.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 342.94 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 53.7 MB in the beginning and 85.1 MB in the end (delta: -31.4 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.04 ms. Allocated memory is still 109.1 MB. Free memory was 85.1 MB in the beginning and 83.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.30 ms. Allocated memory is still 109.1 MB. Free memory was 83.6 MB in the beginning and 82.8 MB in the end (delta: 794.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 449.21 ms. Allocated memory is still 109.1 MB. Free memory was 82.8 MB in the beginning and 71.3 MB in the end (delta: 11.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4462.00 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 71.0 MB in the beginning and 92.3 MB in the end (delta: -21.2 MB). Peak memory consumption was 3.1 MB. Max. memory is 16.1 GB. * Witness Printer took 52.64 ms. Allocated memory is still 132.1 MB. Free memory was 92.3 MB in the beginning and 90.2 MB in the end (delta: 2.1 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: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 29 SDslu, 21 SDs, 0 SdLazy, 67 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 19 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 21, 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 13 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 17 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 189 SizeOfPredicates, 8 NumberOfNonLiveVariables, 62 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 1/15 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 4 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (0 <= k && k <= 2147483647) && j <= k - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: j <= 2147483647 RESULT: Ultimate proved your program to be correct! [2021-10-29 04:44:39,065 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf302084-9256-459a-aa26-ad09f34d0f66/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...