./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark04_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f9341-6169-4352-8f40-19b64d2003bd/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f9341-6169-4352-8f40-19b64d2003bd/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f9341-6169-4352-8f40-19b64d2003bd/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f9341-6169-4352-8f40-19b64d2003bd/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark04_conjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f9341-6169-4352-8f40-19b64d2003bd/bin/utaipan-WLngWcDbfI/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f9341-6169-4352-8f40-19b64d2003bd/bin/utaipan-WLngWcDbfI --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 6e3d50e5c95506905bfc503f1fcedc0356db6a24 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:30:04,112 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:30:04,115 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:30:04,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:30:04,165 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:30:04,170 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:30:04,173 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:30:04,177 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:30:04,180 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:30:04,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:30:04,190 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:30:04,192 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:30:04,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:30:04,196 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:30:04,198 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:30:04,201 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:30:04,203 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:30:04,208 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:30:04,211 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:30:04,216 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:30:04,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:30:04,221 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:30:04,223 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:30:04,224 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:30:04,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:30:04,228 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:30:04,229 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:30:04,230 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:30:04,231 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:30:04,232 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:30:04,232 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:30:04,234 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:30:04,235 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:30:04,236 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:30:04,237 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:30:04,238 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:30:04,238 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:30:04,239 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:30:04,239 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:30:04,240 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:30:04,241 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:30:04,243 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f9341-6169-4352-8f40-19b64d2003bd/bin/utaipan-WLngWcDbfI/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-10-11 02:30:04,274 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:30:04,275 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:30:04,275 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:30:04,276 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:30:04,276 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:30:04,276 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:30:04,277 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:30:04,277 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:30:04,277 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:30:04,277 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:30:04,278 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:30:04,278 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:30:04,278 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:30:04,278 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:30:04,279 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:30:04,279 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:30:04,280 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:30:04,280 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 02:30:04,280 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:30:04,281 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:30:04,281 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:30:04,281 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:30:04,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:30:04,282 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:30:04,282 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-11 02:30:04,282 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:30:04,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:30:04,283 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:30:04,283 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:30:04,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:30:04,283 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:30:04,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:30:04,284 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:30:04,284 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:30:04,284 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:30:04,285 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:30:04,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:30:04,285 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:30:04,286 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:30:04,286 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:30:04,286 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_bf7f9341-6169-4352-8f40-19b64d2003bd/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f9341-6169-4352-8f40-19b64d2003bd/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e3d50e5c95506905bfc503f1fcedc0356db6a24 [2021-10-11 02:30:04,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:30:04,612 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:30:04,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:30:04,618 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:30:04,618 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:30:04,619 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f9341-6169-4352-8f40-19b64d2003bd/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/loop-zilu/benchmark04_conjunctive.i [2021-10-11 02:30:04,710 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f9341-6169-4352-8f40-19b64d2003bd/bin/utaipan-WLngWcDbfI/data/578084ba7/342b7a62625442829ed7a39b3a647904/FLAG0104ede5e [2021-10-11 02:30:05,174 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:30:05,174 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f9341-6169-4352-8f40-19b64d2003bd/sv-benchmarks/c/loop-zilu/benchmark04_conjunctive.i [2021-10-11 02:30:05,186 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f9341-6169-4352-8f40-19b64d2003bd/bin/utaipan-WLngWcDbfI/data/578084ba7/342b7a62625442829ed7a39b3a647904/FLAG0104ede5e [2021-10-11 02:30:05,211 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f9341-6169-4352-8f40-19b64d2003bd/bin/utaipan-WLngWcDbfI/data/578084ba7/342b7a62625442829ed7a39b3a647904 [2021-10-11 02:30:05,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:30:05,217 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:30:05,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:30:05,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:30:05,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:30:05,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:30:05" (1/1) ... [2021-10-11 02:30:05,235 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bf35cb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:05, skipping insertion in model container [2021-10-11 02:30:05,235 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:30:05" (1/1) ... [2021-10-11 02:30:05,243 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:30:05,258 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:30:05,428 WARN L226 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_bf7f9341-6169-4352-8f40-19b64d2003bd/sv-benchmarks/c/loop-zilu/benchmark04_conjunctive.i[873,886] [2021-10-11 02:30:05,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:30:05,447 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:30:05,458 WARN L226 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_bf7f9341-6169-4352-8f40-19b64d2003bd/sv-benchmarks/c/loop-zilu/benchmark04_conjunctive.i[873,886] [2021-10-11 02:30:05,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:30:05,475 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:30:05,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:05 WrapperNode [2021-10-11 02:30:05,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:30:05,477 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:30:05,477 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:30:05,477 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:30:05,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:05" (1/1) ... [2021-10-11 02:30:05,490 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:05" (1/1) ... [2021-10-11 02:30:05,508 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:30:05,508 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:30:05,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:30:05,509 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:30:05,517 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:05" (1/1) ... [2021-10-11 02:30:05,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:05" (1/1) ... [2021-10-11 02:30:05,518 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:05" (1/1) ... [2021-10-11 02:30:05,519 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:05" (1/1) ... [2021-10-11 02:30:05,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:05" (1/1) ... [2021-10-11 02:30:05,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:05" (1/1) ... [2021-10-11 02:30:05,527 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:05" (1/1) ... [2021-10-11 02:30:05,528 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:30:05,529 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:30:05,530 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:30:05,530 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:30:05,531 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:05" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f9341-6169-4352-8f40-19b64d2003bd/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:30:05,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:30:05,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:30:05,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:30:05,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:30:06,015 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:30:06,016 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-11 02:30:06,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:30:06 BoogieIcfgContainer [2021-10-11 02:30:06,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:30:06,032 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:30:06,032 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:30:06,036 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:30:06,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:30:05" (1/3) ... [2021-10-11 02:30:06,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40acc27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:30:06, skipping insertion in model container [2021-10-11 02:30:06,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:05" (2/3) ... [2021-10-11 02:30:06,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40acc27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:30:06, skipping insertion in model container [2021-10-11 02:30:06,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:30:06" (3/3) ... [2021-10-11 02:30:06,055 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark04_conjunctive.i [2021-10-11 02:30:06,070 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:30:06,083 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2021-10-11 02:30:06,108 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-11 02:30:06,145 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:30:06,145 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:30:06,145 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:30:06,145 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:30:06,146 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:30:06,146 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:30:06,146 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:30:06,146 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:30:06,162 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2021-10-11 02:30:06,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-11 02:30:06,167 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:30:06,167 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-11 02:30:06,168 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:30:06,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:30:06,173 INFO L82 PathProgramCache]: Analyzing trace with hash 71343, now seen corresponding path program 1 times [2021-10-11 02:30:06,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:30:06,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591326543] [2021-10-11 02:30:06,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:30:06,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:30:06,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:30:06,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591326543] [2021-10-11 02:30:06,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:30:06,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:30:06,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433482785] [2021-10-11 02:30:06,356 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:30:06,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:30:06,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:30:06,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:30:06,373 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 3 states. [2021-10-11 02:30:06,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:30:06,407 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2021-10-11 02:30:06,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:30:06,409 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2021-10-11 02:30:06,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:30:06,419 INFO L225 Difference]: With dead ends: 21 [2021-10-11 02:30:06,420 INFO L226 Difference]: Without dead ends: 14 [2021-10-11 02:30:06,423 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:30:06,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-10-11 02:30:06,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-10-11 02:30:06,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-11 02:30:06,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-10-11 02:30:06,458 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 3 [2021-10-11 02:30:06,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:30:06,459 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-10-11 02:30:06,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:30:06,459 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-10-11 02:30:06,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-11 02:30:06,460 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:30:06,460 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-11 02:30:06,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:30:06,461 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:30:06,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:30:06,462 INFO L82 PathProgramCache]: Analyzing trace with hash 2211678, now seen corresponding path program 1 times [2021-10-11 02:30:06,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:30:06,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552968040] [2021-10-11 02:30:06,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:30:06,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:30:06,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:30:06,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552968040] [2021-10-11 02:30:06,502 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:30:06,502 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:30:06,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377686800] [2021-10-11 02:30:06,504 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:30:06,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:30:06,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:30:06,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:30:06,506 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 3 states. [2021-10-11 02:30:06,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:30:06,520 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2021-10-11 02:30:06,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:30:06,521 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2021-10-11 02:30:06,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:30:06,522 INFO L225 Difference]: With dead ends: 14 [2021-10-11 02:30:06,522 INFO L226 Difference]: Without dead ends: 13 [2021-10-11 02:30:06,523 INFO L677 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 [2021-10-11 02:30:06,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-11 02:30:06,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-11 02:30:06,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-11 02:30:06,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-10-11 02:30:06,528 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 4 [2021-10-11 02:30:06,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:30:06,528 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-10-11 02:30:06,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:30:06,529 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-10-11 02:30:06,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 02:30:06,529 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:30:06,530 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 02:30:06,530 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:30:06,530 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:30:06,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:30:06,531 INFO L82 PathProgramCache]: Analyzing trace with hash 2125424160, now seen corresponding path program 1 times [2021-10-11 02:30:06,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:30:06,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273482503] [2021-10-11 02:30:06,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:30:06,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:30:06,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:30:06,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273482503] [2021-10-11 02:30:06,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:30:06,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:30:06,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860124715] [2021-10-11 02:30:06,579 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:30:06,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:30:06,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:30:06,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:30:06,582 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 4 states. [2021-10-11 02:30:06,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:30:06,622 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2021-10-11 02:30:06,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:30:06,623 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2021-10-11 02:30:06,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:30:06,624 INFO L225 Difference]: With dead ends: 20 [2021-10-11 02:30:06,624 INFO L226 Difference]: Without dead ends: 19 [2021-10-11 02:30:06,625 INFO L677 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 [2021-10-11 02:30:06,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-10-11 02:30:06,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2021-10-11 02:30:06,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-10-11 02:30:06,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2021-10-11 02:30:06,631 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 6 [2021-10-11 02:30:06,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:30:06,632 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2021-10-11 02:30:06,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:30:06,632 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2021-10-11 02:30:06,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:30:06,633 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:30:06,633 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:30:06,633 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 02:30:06,634 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:30:06,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:30:06,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1463639574, now seen corresponding path program 1 times [2021-10-11 02:30:06,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:30:06,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33629662] [2021-10-11 02:30:06,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:30:06,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:30:06,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:30:06,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33629662] [2021-10-11 02:30:06,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:30:06,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:30:06,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860253109] [2021-10-11 02:30:06,718 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:30:06,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:30:06,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:30:06,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:30:06,720 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 4 states. [2021-10-11 02:30:06,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:30:06,745 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2021-10-11 02:30:06,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:30:06,746 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-10-11 02:30:06,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:30:06,747 INFO L225 Difference]: With dead ends: 17 [2021-10-11 02:30:06,747 INFO L226 Difference]: Without dead ends: 16 [2021-10-11 02:30:06,748 INFO L677 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 [2021-10-11 02:30:06,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-11 02:30:06,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-11 02:30:06,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-10-11 02:30:06,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-10-11 02:30:06,753 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2021-10-11 02:30:06,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:30:06,753 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-10-11 02:30:06,753 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:30:06,753 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-10-11 02:30:06,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:30:06,754 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:30:06,754 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:30:06,754 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 02:30:06,755 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:30:06,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:30:06,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1871813406, now seen corresponding path program 1 times [2021-10-11 02:30:06,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:30:06,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149213972] [2021-10-11 02:30:06,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:30:06,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:30:06,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:30:06,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149213972] [2021-10-11 02:30:06,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:30:06,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:30:06,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620384687] [2021-10-11 02:30:06,798 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:30:06,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:30:06,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:30:06,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:30:06,800 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 4 states. [2021-10-11 02:30:06,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:30:06,824 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2021-10-11 02:30:06,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:30:06,825 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2021-10-11 02:30:06,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:30:06,826 INFO L225 Difference]: With dead ends: 16 [2021-10-11 02:30:06,826 INFO L226 Difference]: Without dead ends: 15 [2021-10-11 02:30:06,827 INFO L677 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 [2021-10-11 02:30:06,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-10-11 02:30:06,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-10-11 02:30:06,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-11 02:30:06,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-10-11 02:30:06,831 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2021-10-11 02:30:06,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:30:06,831 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-10-11 02:30:06,832 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:30:06,832 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-10-11 02:30:06,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 02:30:06,832 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:30:06,833 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:30:06,833 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 02:30:06,833 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:30:06,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:30:06,834 INFO L82 PathProgramCache]: Analyzing trace with hash 2103326616, now seen corresponding path program 1 times [2021-10-11 02:30:06,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:30:06,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959412412] [2021-10-11 02:30:06,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:30:06,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:30:06,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:30:06,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959412412] [2021-10-11 02:30:06,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:30:06,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:30:06,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281591896] [2021-10-11 02:30:06,909 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:30:06,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:30:06,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:30:06,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:30:06,910 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 4 states. [2021-10-11 02:30:06,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:30:06,950 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2021-10-11 02:30:06,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:30:06,951 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2021-10-11 02:30:06,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:30:06,952 INFO L225 Difference]: With dead ends: 19 [2021-10-11 02:30:06,952 INFO L226 Difference]: Without dead ends: 18 [2021-10-11 02:30:06,953 INFO L677 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 [2021-10-11 02:30:06,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-10-11 02:30:06,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-10-11 02:30:06,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-10-11 02:30:06,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2021-10-11 02:30:06,958 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 9 [2021-10-11 02:30:06,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:30:06,959 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2021-10-11 02:30:06,959 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:30:06,959 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2021-10-11 02:30:06,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 02:30:06,960 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:30:06,960 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:30:06,961 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 02:30:06,961 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:30:06,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:30:06,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1378031940, now seen corresponding path program 1 times [2021-10-11 02:30:06,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:30:06,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157813972] [2021-10-11 02:30:06,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:30:07,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:30:07,060 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:30:07,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157813972] [2021-10-11 02:30:07,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [106980178] [2021-10-11 02:30:07,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f9341-6169-4352-8f40-19b64d2003bd/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:30:07,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:30:07,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:30:07,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:30:07,183 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:30:07,183 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:30:07,272 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:30:07,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2054598695] [2021-10-11 02:30:07,297 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-10-11 02:30:07,297 INFO L166 IcfgInterpreter]: Building call graph [2021-10-11 02:30:07,303 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-11 02:30:07,310 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-11 02:30:07,311 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-11 02:30:07,954 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-11 02:30:08,131 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-10-11 02:30:08,257 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2021-10-11 02:30:08,430 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 29 [2021-10-11 02:30:08,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2021-10-11 02:30:08,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5, 5] total 13 [2021-10-11 02:30:08,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296424209] [2021-10-11 02:30:08,652 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:30:08,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:30:08,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:30:08,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-10-11 02:30:08,657 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 6 states. [2021-10-11 02:30:08,876 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2021-10-11 02:30:09,100 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2021-10-11 02:30:09,310 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2021-10-11 02:30:09,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:30:09,336 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2021-10-11 02:30:09,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:30:09,336 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2021-10-11 02:30:09,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:30:09,339 INFO L225 Difference]: With dead ends: 18 [2021-10-11 02:30:09,339 INFO L226 Difference]: Without dead ends: 17 [2021-10-11 02:30:09,341 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 7 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2021-10-11 02:30:09,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-11 02:30:09,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-10-11 02:30:09,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-10-11 02:30:09,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2021-10-11 02:30:09,347 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 13 [2021-10-11 02:30:09,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:30:09,348 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2021-10-11 02:30:09,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:30:09,348 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2021-10-11 02:30:09,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 02:30:09,350 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:30:09,351 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2021-10-11 02:30:09,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-10-11 02:30:09,571 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:30:09,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:30:09,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1652055684, now seen corresponding path program 1 times [2021-10-11 02:30:09,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:30:09,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190068313] [2021-10-11 02:30:09,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:30:09,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:30:09,637 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:30:09,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190068313] [2021-10-11 02:30:09,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093881560] [2021-10-11 02:30:09,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f9341-6169-4352-8f40-19b64d2003bd/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:30:09,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:30:09,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-11 02:30:09,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:30:09,840 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:30:09,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:30:10,038 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:30:10,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1037061678] [2021-10-11 02:30:10,044 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-10-11 02:30:10,045 INFO L166 IcfgInterpreter]: Building call graph [2021-10-11 02:30:10,046 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-11 02:30:10,046 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-11 02:30:10,046 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-11 02:30:10,379 WARN L197 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-10-11 02:30:10,523 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-11 02:30:10,787 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-10-11 02:30:11,393 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:30:11,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-11 02:30:11,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 15 [2021-10-11 02:30:11,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922532781] [2021-10-11 02:30:11,394 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-10-11 02:30:11,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:30:11,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-11 02:30:11,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2021-10-11 02:30:11,396 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 16 states. [2021-10-11 02:30:11,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:30:11,751 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2021-10-11 02:30:11,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-11 02:30:11,752 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 16 [2021-10-11 02:30:11,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:30:11,753 INFO L225 Difference]: With dead ends: 46 [2021-10-11 02:30:11,753 INFO L226 Difference]: Without dead ends: 45 [2021-10-11 02:30:11,754 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 24 SyntacticMatches, 8 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=179, Invalid=751, Unknown=0, NotChecked=0, Total=930 [2021-10-11 02:30:11,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-10-11 02:30:11,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-10-11 02:30:11,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2021-10-11 02:30:11,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2021-10-11 02:30:11,762 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 16 [2021-10-11 02:30:11,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:30:11,763 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2021-10-11 02:30:11,763 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-10-11 02:30:11,763 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2021-10-11 02:30:11,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-11 02:30:11,765 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:30:11,765 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 1, 1, 1] [2021-10-11 02:30:11,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:30:11,979 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:30:11,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:30:11,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1816146556, now seen corresponding path program 2 times [2021-10-11 02:30:11,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:30:11,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804309981] [2021-10-11 02:30:11,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:30:12,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:30:12,181 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2021-10-11 02:30:12,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804309981] [2021-10-11 02:30:12,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982801859] [2021-10-11 02:30:12,182 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f9341-6169-4352-8f40-19b64d2003bd/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:30:12,266 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-10-11 02:30:12,266 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-11 02:30:12,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-11 02:30:12,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:30:12,504 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:30:12,504 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:30:12,860 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:30:12,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1468831024] [2021-10-11 02:30:12,865 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-10-11 02:30:12,865 INFO L166 IcfgInterpreter]: Building call graph [2021-10-11 02:30:12,865 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-11 02:30:12,866 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-11 02:30:12,866 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-11 02:30:13,142 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-11 02:30:13,379 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-10-11 02:30:14,434 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:30:14,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-11 02:30:14,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 13, 13] total 28 [2021-10-11 02:30:14,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691729743] [2021-10-11 02:30:14,435 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-10-11 02:30:14,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:30:14,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-10-11 02:30:14,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=921, Unknown=0, NotChecked=0, Total=1122 [2021-10-11 02:30:14,437 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand 29 states. [2021-10-11 02:30:14,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:30:14,543 INFO L93 Difference]: Finished difference Result 45 states and 45 transitions. [2021-10-11 02:30:14,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:30:14,544 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 44 [2021-10-11 02:30:14,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:30:14,544 INFO L225 Difference]: With dead ends: 45 [2021-10-11 02:30:14,544 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:30:14,546 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 92 SyntacticMatches, 25 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1135 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=279, Invalid=1127, Unknown=0, NotChecked=0, Total=1406 [2021-10-11 02:30:14,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:30:14,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:30:14,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:30:14,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:30:14,546 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2021-10-11 02:30:14,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:30:14,547 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:30:14,547 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2021-10-11 02:30:14,547 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:30:14,547 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:30:14,775 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:30:14,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:30:14,951 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2021-10-11 02:30:14,953 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-10-11 02:30:14,953 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:30:14,953 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-10-11 02:30:14,954 INFO L258 CegarLoopResult]: At program point L29(lines 19 30) the Hoare annotation is: (<= ULTIMATE.start_main_~n~0 2147483647) [2021-10-11 02:30:14,954 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2021-10-11 02:30:14,954 INFO L262 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2021-10-11 02:30:14,954 INFO L262 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed. [2021-10-11 02:30:14,954 INFO L262 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2021-10-11 02:30:14,955 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-10-11 02:30:14,955 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-10-11 02:30:14,955 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:30:14,955 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2021-10-11 02:30:14,955 INFO L262 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2021-10-11 02:30:14,956 INFO L262 CegarLoopResult]: For program point L26-1(line 26) no Hoare annotation was computed. [2021-10-11 02:30:14,956 INFO L262 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2021-10-11 02:30:14,956 INFO L262 CegarLoopResult]: For program point L24-2(lines 24 27) no Hoare annotation was computed. [2021-10-11 02:30:14,957 INFO L258 CegarLoopResult]: At program point L24-4(lines 24 27) the Hoare annotation is: (let ((.cse0 (select |#memory_int| |#t~string0.base|))) (and (= |#t~string1.offset| 0) (= (select |#length| |#t~string1.base|) 26) (<= 0 ULTIMATE.start_main_~j~0) (= |#NULL.base| 0) (= (select .cse0 |#t~string0.offset|) 48) (<= ULTIMATE.start_main_~n~0 (+ ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~j~0)) (<= ULTIMATE.start_main_~n~0 2147483647) (= (select .cse0 (+ |#t~string0.offset| 1)) 0) (= (select |#valid| 0) 0) (= 2 (select |#length| |#t~string0.base|)) (<= 1 ULTIMATE.start_main_~n~0) (< |#StackHeapBarrier| |#t~string0.base|) (= (select |#valid| |#t~string0.base|) 1) (< 0 |#StackHeapBarrier|) (< |#StackHeapBarrier| |#t~string1.base|) (= |#NULL.offset| 0) (<= ULTIMATE.start_main_~k~0 2147483647) (<= 0 ULTIMATE.start_main_~k~0) (= (select |#valid| |#t~string1.base|) 1) (<= ULTIMATE.start_main_~j~0 2147483647) (= |#t~string0.offset| 0))) [2021-10-11 02:30:14,957 INFO L262 CegarLoopResult]: For program point L24-5(lines 24 27) no Hoare annotation was computed. [2021-10-11 02:30:14,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:30:14 BoogieIcfgContainer [2021-10-11 02:30:14,982 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:30:14,983 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:30:14,983 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:30:14,983 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:30:14,984 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:30:06" (3/4) ... [2021-10-11 02:30:14,987 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:30:14,996 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-11 02:30:14,996 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 02:30:14,996 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:30:14,997 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:30:15,039 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7f9341-6169-4352-8f40-19b64d2003bd/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:30:15,039 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:30:15,040 INFO L168 Benchmark]: Toolchain (without parser) took 9823.29 ms. Allocated memory was 102.8 MB in the beginning and 180.4 MB in the end (delta: 77.6 MB). Free memory was 69.7 MB in the beginning and 62.9 MB in the end (delta: 6.8 MB). Peak memory consumption was 84.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:30:15,041 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 102.8 MB. Free memory is still 56.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:30:15,041 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.70 ms. Allocated memory is still 102.8 MB. Free memory was 69.5 MB in the beginning and 78.8 MB in the end (delta: -9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:30:15,042 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.97 ms. Allocated memory is still 102.8 MB. Free memory was 78.8 MB in the beginning and 77.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:30:15,042 INFO L168 Benchmark]: Boogie Preprocessor took 20.25 ms. Allocated memory is still 102.8 MB. Free memory was 77.3 MB in the beginning and 76.6 MB in the end (delta: 690.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:30:15,043 INFO L168 Benchmark]: RCFGBuilder took 501.09 ms. Allocated memory is still 102.8 MB. Free memory was 76.3 MB in the beginning and 61.2 MB in the end (delta: 15.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:30:15,043 INFO L168 Benchmark]: TraceAbstraction took 8949.95 ms. Allocated memory was 102.8 MB in the beginning and 180.4 MB in the end (delta: 77.6 MB). Free memory was 60.9 MB in the beginning and 65.0 MB in the end (delta: -4.1 MB). Peak memory consumption was 74.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:30:15,044 INFO L168 Benchmark]: Witness Printer took 56.87 ms. Allocated memory is still 180.4 MB. Free memory was 65.0 MB in the beginning and 62.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:30:15,047 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 102.8 MB. Free memory is still 56.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 254.70 ms. Allocated memory is still 102.8 MB. Free memory was 69.5 MB in the beginning and 78.8 MB in the end (delta: -9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.97 ms. Allocated memory is still 102.8 MB. Free memory was 78.8 MB in the beginning and 77.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.25 ms. Allocated memory is still 102.8 MB. Free memory was 77.3 MB in the beginning and 76.6 MB in the end (delta: 690.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 501.09 ms. Allocated memory is still 102.8 MB. Free memory was 76.3 MB in the beginning and 61.2 MB in the end (delta: 15.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8949.95 ms. Allocated memory was 102.8 MB in the beginning and 180.4 MB in the end (delta: 77.6 MB). Free memory was 60.9 MB in the beginning and 65.0 MB in the end (delta: -4.1 MB). Peak memory consumption was 74.9 MB. Max. memory is 16.1 GB. * Witness Printer took 56.87 ms. Allocated memory is still 180.4 MB. Free memory was 65.0 MB in the beginning and 62.9 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: - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: 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: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: n <= 2147483647 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: ((((((((((((((((((("benchmark04_conjunctive.c" == 0 && unknown-#length-unknown["benchmark04_conjunctive.c"] == 26) && 0 <= j) && #NULL == 0) && unknown-#memory_int-unknown["0"]["0"] == 48) && n <= k + j) && n <= 2147483647) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && \valid[0] == 0) && 2 == unknown-#length-unknown["0"]) && 1 <= n) && unknown-#StackHeapBarrier-unknown < "0") && \valid["0"] == 1) && 0 < unknown-#StackHeapBarrier-unknown) && unknown-#StackHeapBarrier-unknown < "benchmark04_conjunctive.c") && #NULL == 0) && k <= 2147483647) && 0 <= k) && \valid["benchmark04_conjunctive.c"] == 1) && j <= 2147483647) && "0" == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.6s, OverallIterations: 9, TraceHistogramMax: 6, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 59 SDtfs, 115 SDslu, 61 SDs, 0 SdLazy, 217 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 277 GetRequests, 143 SyntacticMatches, 40 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1443 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 89 HoareAnnotationTreeSize, 2 FomulaSimplifications, 319 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 103 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 183 NumberOfCodeBlocks, 183 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 241 ConstructedInterpolants, 0 QuantifiedInterpolants, 32217 SizeOfPredicates, 19 NumberOfNonLiveVariables, 242 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 15 InterpolantComputations, 6 PerfectInterpolantSequences, 85/348 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME[ms]: 658, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 8, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 44, TOOLS_POST_TIME[ms]: 277, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME[ms]: 0, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 44, TOOLS_QUANTIFIERELIM_TIME[ms]: 258, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 176, FLUID_QUERY_TIME[ms]: 5, FLUID_QUERIES: 66, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME[ms]: 0, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 4, DOMAIN_WIDEN_TIME[ms]: 293, DOMAIN_ISSUBSETEQ_APPLICATIONS: 5, DOMAIN_ISSUBSETEQ_TIME[ms]: 18, DOMAIN_ISBOTTOM_APPLICATIONS: 8, DOMAIN_ISBOTTOM_TIME[ms]: 13, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 410, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 409, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 5, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 0, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 2, PATH_EXPR_TIME[ms]: 3, REGEX_TO_DAG_TIME[ms]: 4, DAG_COMPRESSION_TIME[ms]: 9, DAG_COMPRESSION_PROCESSED_NODES: 74, DAG_COMPRESSION_RETAINED_NODES: 32, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...