./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8ed12290-39d4-4960-b63c-85b70527c1dd/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8ed12290-39d4-4960-b63c-85b70527c1dd/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8ed12290-39d4-4960-b63c-85b70527c1dd/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8ed12290-39d4-4960-b63c-85b70527c1dd/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8ed12290-39d4-4960-b63c-85b70527c1dd/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8ed12290-39d4-4960-b63c-85b70527c1dd/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9668b946af76644b8fa4631a2788ccda3020fa9d .................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 08:54:33,229 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 08:54:33,231 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 08:54:33,253 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 08:54:33,254 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 08:54:33,255 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 08:54:33,256 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 08:54:33,258 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 08:54:33,260 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 08:54:33,260 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 08:54:33,261 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 08:54:33,262 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 08:54:33,263 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 08:54:33,264 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 08:54:33,265 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 08:54:33,266 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 08:54:33,266 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 08:54:33,267 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 08:54:33,269 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 08:54:33,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 08:54:33,272 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 08:54:33,274 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 08:54:33,275 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 08:54:33,276 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 08:54:33,279 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 08:54:33,280 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 08:54:33,280 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 08:54:33,281 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 08:54:33,282 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 08:54:33,283 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 08:54:33,283 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 08:54:33,284 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 08:54:33,285 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 08:54:33,286 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 08:54:33,287 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 08:54:33,287 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 08:54:33,288 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 08:54:33,288 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 08:54:33,288 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 08:54:33,289 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 08:54:33,290 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 08:54:33,290 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8ed12290-39d4-4960-b63c-85b70527c1dd/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 08:54:33,311 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 08:54:33,311 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 08:54:33,312 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 08:54:33,312 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 08:54:33,317 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 08:54:33,317 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 08:54:33,317 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 08:54:33,317 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 08:54:33,317 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 08:54:33,317 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 08:54:33,318 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 08:54:33,318 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 08:54:33,318 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 08:54:33,318 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 08:54:33,318 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 08:54:33,319 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 08:54:33,319 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 08:54:33,319 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 08:54:33,319 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 08:54:33,319 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 08:54:33,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 08:54:33,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 08:54:33,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 08:54:33,320 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 08:54:33,320 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 08:54:33,320 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 08:54:33,320 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 08:54:33,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 08:54:33,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 08:54:33,320 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 08:54:33,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 08:54:33,321 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 08:54:33,321 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 08:54:33,321 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 08:54:33,321 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 08:54:33,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 08:54:33,321 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 08:54:33,321 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 08:54:33,321 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 08:54:33,322 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-vcloud-master/worker/run_dir_8ed12290-39d4-4960-b63c-85b70527c1dd/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8ed12290-39d4-4960-b63c-85b70527c1dd/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9668b946af76644b8fa4631a2788ccda3020fa9d [2020-12-09 08:54:33,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 08:54:33,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 08:54:33,526 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 08:54:33,527 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 08:54:33,527 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 08:54:33,528 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8ed12290-39d4-4960-b63c-85b70527c1dd/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound1.c [2020-12-09 08:54:33,573 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8ed12290-39d4-4960-b63c-85b70527c1dd/bin/utaipan/data/41036c614/38dc1d111a9c4810a59d684816569e76/FLAGf8a198ac1 [2020-12-09 08:54:33,943 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 08:54:33,943 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8ed12290-39d4-4960-b63c-85b70527c1dd/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound1.c [2020-12-09 08:54:33,948 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8ed12290-39d4-4960-b63c-85b70527c1dd/bin/utaipan/data/41036c614/38dc1d111a9c4810a59d684816569e76/FLAGf8a198ac1 [2020-12-09 08:54:33,960 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8ed12290-39d4-4960-b63c-85b70527c1dd/bin/utaipan/data/41036c614/38dc1d111a9c4810a59d684816569e76 [2020-12-09 08:54:33,963 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 08:54:33,964 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 08:54:33,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 08:54:33,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 08:54:33,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 08:54:33,968 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:54:33" (1/1) ... [2020-12-09 08:54:33,970 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ecd936d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:54:33, skipping insertion in model container [2020-12-09 08:54:33,970 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:54:33" (1/1) ... [2020-12-09 08:54:33,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 08:54:33,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 08:54:34,100 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_8ed12290-39d4-4960-b63c-85b70527c1dd/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound1.c[458,471] [2020-12-09 08:54:34,113 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 08:54:34,122 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 08:54:34,131 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_8ed12290-39d4-4960-b63c-85b70527c1dd/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound1.c[458,471] [2020-12-09 08:54:34,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 08:54:34,147 INFO L208 MainTranslator]: Completed translation [2020-12-09 08:54:34,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:54:34 WrapperNode [2020-12-09 08:54:34,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 08:54:34,149 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 08:54:34,149 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 08:54:34,149 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 08:54:34,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:54:34" (1/1) ... [2020-12-09 08:54:34,160 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:54:34" (1/1) ... [2020-12-09 08:54:34,173 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 08:54:34,174 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 08:54:34,174 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 08:54:34,174 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 08:54:34,181 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:54:34" (1/1) ... [2020-12-09 08:54:34,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:54:34" (1/1) ... [2020-12-09 08:54:34,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:54:34" (1/1) ... [2020-12-09 08:54:34,182 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:54:34" (1/1) ... [2020-12-09 08:54:34,186 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:54:34" (1/1) ... [2020-12-09 08:54:34,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:54:34" (1/1) ... [2020-12-09 08:54:34,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:54:34" (1/1) ... [2020-12-09 08:54:34,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 08:54:34,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 08:54:34,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 08:54:34,193 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 08:54:34,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:54:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ed12290-39d4-4960-b63c-85b70527c1dd/bin/utaipan/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 [2020-12-09 08:54:34,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 08:54:34,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 08:54:34,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 08:54:34,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 08:54:34,453 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 08:54:34,453 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2020-12-09 08:54:34,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:54:34 BoogieIcfgContainer [2020-12-09 08:54:34,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 08:54:34,457 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 08:54:34,457 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 08:54:34,460 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 08:54:34,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 08:54:33" (1/3) ... [2020-12-09 08:54:34,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac7ffe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:54:34, skipping insertion in model container [2020-12-09 08:54:34,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:54:34" (2/3) ... [2020-12-09 08:54:34,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac7ffe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:54:34, skipping insertion in model container [2020-12-09 08:54:34,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:54:34" (3/3) ... [2020-12-09 08:54:34,463 INFO L111 eAbstractionObserver]: Analyzing ICFG ps4-ll_valuebound1.c [2020-12-09 08:54:34,476 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 08:54:34,478 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-09 08:54:34,491 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-09 08:54:34,509 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 08:54:34,510 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 08:54:34,510 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 08:54:34,510 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 08:54:34,510 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 08:54:34,510 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 08:54:34,510 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 08:54:34,510 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 08:54:34,519 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-12-09 08:54:34,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-09 08:54:34,523 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:54:34,525 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-09 08:54:34,526 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 08:54:34,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:54:34,531 INFO L82 PathProgramCache]: Analyzing trace with hash 2967281, now seen corresponding path program 1 times [2020-12-09 08:54:34,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 08:54:34,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711666217] [2020-12-09 08:54:34,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 08:54:34,603 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-09 08:54:34,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [93010547] [2020-12-09 08:54:34,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ed12290-39d4-4960-b63c-85b70527c1dd/bin/utaipan/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 [2020-12-09 08:54:34,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:54:34,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 08:54:34,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:54:34,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 08:54:34,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 08:54:36,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 08:54:36,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711666217] [2020-12-09 08:54:36,764 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 08:54:36,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93010547] [2020-12-09 08:54:36,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-09 08:54:36,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-12-09 08:54:36,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594633444] [2020-12-09 08:54:36,768 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 08:54:36,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 08:54:36,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 08:54:36,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=18, Unknown=1, NotChecked=0, Total=30 [2020-12-09 08:54:36,779 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 6 states. [2020-12-09 08:55:42,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:55:42,199 INFO L93 Difference]: Finished difference Result 45 states and 61 transitions. [2020-12-09 08:55:42,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 08:55:42,201 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2020-12-09 08:55:42,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:55:42,207 INFO L225 Difference]: With dead ends: 45 [2020-12-09 08:55:42,208 INFO L226 Difference]: Without dead ends: 22 [2020-12-09 08:55:42,210 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=23, Invalid=30, Unknown=3, NotChecked=0, Total=56 [2020-12-09 08:55:42,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-12-09 08:55:42,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 19. [2020-12-09 08:55:42,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-12-09 08:55:42,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-12-09 08:55:42,239 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 4 [2020-12-09 08:55:42,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:55:42,239 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-12-09 08:55:42,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 08:55:42,239 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-12-09 08:55:42,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 08:55:42,240 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:55:42,240 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2020-12-09 08:55:42,441 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-12-09 08:55:42,442 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 08:55:42,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:55:42,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1677173713, now seen corresponding path program 1 times [2020-12-09 08:55:42,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 08:55:42,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847189968] [2020-12-09 08:55:42,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 08:55:42,464 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-09 08:55:42,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [985721970] [2020-12-09 08:55:42,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ed12290-39d4-4960-b63c-85b70527c1dd/bin/utaipan/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 [2020-12-09 08:55:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:55:42,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 08:55:42,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:55:42,529 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 08:55:42,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 08:55:42,551 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 08:55:42,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847189968] [2020-12-09 08:55:42,552 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 08:55:42,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985721970] [2020-12-09 08:55:42,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-09 08:55:42,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-12-09 08:55:42,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293493898] [2020-12-09 08:55:42,554 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 08:55:42,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 08:55:42,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 08:55:42,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-12-09 08:55:42,555 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 6 states. [2020-12-09 08:55:42,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:55:42,568 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2020-12-09 08:55:42,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 08:55:42,568 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-12-09 08:55:42,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:55:42,569 INFO L225 Difference]: With dead ends: 28 [2020-12-09 08:55:42,569 INFO L226 Difference]: Without dead ends: 15 [2020-12-09 08:55:42,569 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-12-09 08:55:42,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-12-09 08:55:42,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-12-09 08:55:42,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-12-09 08:55:42,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2020-12-09 08:55:42,572 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 10 [2020-12-09 08:55:42,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:55:42,572 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2020-12-09 08:55:42,572 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 08:55:42,572 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-12-09 08:55:42,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 08:55:42,573 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:55:42,573 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2020-12-09 08:55:42,773 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 08:55:42,774 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 08:55:42,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:55:42,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1677132998, now seen corresponding path program 1 times [2020-12-09 08:55:42,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 08:55:42,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324400774] [2020-12-09 08:55:42,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 08:55:42,807 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-09 08:55:42,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1785994484] [2020-12-09 08:55:42,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ed12290-39d4-4960-b63c-85b70527c1dd/bin/utaipan/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 [2020-12-09 08:55:42,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:55:42,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-09 08:55:42,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:55:42,879 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:55:42,889 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 08:55:42,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 08:55:42,936 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 08:55:42,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324400774] [2020-12-09 08:55:42,936 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 08:55:42,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785994484] [2020-12-09 08:55:42,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1013335205] [2020-12-09 08:55:42,950 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2020-12-09 08:55:42,951 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 08:55:42,954 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 08:55:42,958 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 08:55:42,958 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 08:55:43,039 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-09 08:55:43,045 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-09 08:55:43,290 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 08:55:43,781 WARN L197 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 75 [2020-12-09 08:55:44,225 WARN L197 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 77 [2020-12-09 08:55:44,756 WARN L197 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 77 [2020-12-09 08:55:44,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 08:55:44,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 10 [2020-12-09 08:55:44,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542446293] [2020-12-09 08:55:44,814 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 08:55:44,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 08:55:44,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 08:55:44,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-12-09 08:55:44,815 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 5 states. [2020-12-09 08:55:44,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:55:44,879 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2020-12-09 08:55:44,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 08:55:44,880 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-09 08:55:44,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:55:44,880 INFO L225 Difference]: With dead ends: 15 [2020-12-09 08:55:44,880 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 08:55:44,880 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-12-09 08:55:44,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 08:55:44,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 08:55:44,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 08:55:44,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 08:55:44,881 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-12-09 08:55:44,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:55:44,881 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 08:55:44,881 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 08:55:44,881 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 08:55:44,881 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 08:55:45,082 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 08:55:45,087 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 08:55:45,368 WARN L197 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2020-12-09 08:55:45,691 WARN L197 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2020-12-09 08:55:46,001 WARN L197 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 83 [2020-12-09 08:55:46,003 INFO L258 CegarLoopResult]: At program point L27-2(lines 27 36) the Hoare annotation is: (let ((.cse17 (select |#memory_int| |#t~string4.base|))) (let ((.cse0 (= (select |#valid| 0) 0)) (.cse1 (= (select |#valid| |#t~string5.base|) 1)) (.cse2 (= (select |#valid| |#t~string4.base|) 1)) (.cse3 (= 12 (select |#length| |#t~string6.base|))) (.cse4 (< |#StackHeapBarrier| |#t~string5.base|)) (.cse5 (= |#NULL.offset| 0)) (.cse6 (= 0 |#t~string4.offset|)) (.cse7 (<= ULTIMATE.start_main_~k~0 1)) (.cse8 (= 9 (select |#length| |#t~string5.base|))) (.cse9 (= 2 (select |#length| |#t~string4.base|))) (.cse10 (= (select |#valid| |#t~string6.base|) 1)) (.cse11 (= 48 (select .cse17 |#t~string4.offset|))) (.cse12 (< |#StackHeapBarrier| |#t~string6.base|)) (.cse13 (< |#StackHeapBarrier| |#t~string4.base|)) (.cse14 (= |ULTIMATE.start_assume_abort_if_not_#in~cond| ULTIMATE.start_assume_abort_if_not_~cond)) (.cse15 (< 0 |#StackHeapBarrier|)) (.cse16 (= (select .cse17 (+ |#t~string4.offset| 1)) 0))) (or (and .cse0 (= ULTIMATE.start_main_~y~0 0) .cse1 .cse2 (= ULTIMATE.start_main_~c~0 0) (= ULTIMATE.start_main_~x~0 0) (<= 0 |#t~string5.offset|) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (= |#NULL.base| 0) .cse10 .cse11 (<= |#t~string5.offset| 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 1) .cse12 .cse13 .cse14 .cse15 (<= 0 ULTIMATE.start_main_~k~0) (= |#t~string6.offset| 0) .cse16) (and .cse0 (< ULTIMATE.start_main_~c~0 (+ ULTIMATE.start_main_~k~0 1)) .cse1 .cse2 (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= |#t~string5.offset| 0) .cse3 .cse4 .cse5 .cse6 (= ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)) (= |ULTIMATE.start___VERIFIER_assert_#in~cond| 1) .cse7 (<= |#t~string6.offset| 0) (<= ULTIMATE.start_assume_abort_if_not_~cond 1) .cse8 .cse9 (<= |#NULL.base| 0) (<= 0 |#t~string6.offset|) .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 (<= 1 ULTIMATE.start_main_~c~0) (<= 0 |#NULL.base|) (= ULTIMATE.start_main_~y~0 1) (<= 1 |ULTIMATE.start_assume_abort_if_not_#in~cond|) .cse16)))) [2020-12-09 08:55:46,003 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-12-09 08:55:46,003 INFO L262 CegarLoopResult]: For program point L27-3(lines 27 36) no Hoare annotation was computed. [2020-12-09 08:55:46,003 INFO L262 CegarLoopResult]: For program point L11(lines 11 12) no Hoare annotation was computed. [2020-12-09 08:55:46,003 INFO L262 CegarLoopResult]: For program point L11-1(lines 11 12) no Hoare annotation was computed. [2020-12-09 08:55:46,004 INFO L262 CegarLoopResult]: For program point L11-2(lines 11 12) no Hoare annotation was computed. [2020-12-09 08:55:46,004 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 08:55:46,004 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-12-09 08:55:46,004 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 08:55:46,004 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-12-09 08:55:46,004 INFO L262 CegarLoopResult]: For program point L10(lines 10 13) no Hoare annotation was computed. [2020-12-09 08:55:46,004 INFO L258 CegarLoopResult]: At program point L10-2(lines 30 31) the Hoare annotation is: (and (<= |#t~string6.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond| ULTIMATE.start___VERIFIER_assert_~cond) (<= ULTIMATE.start_assume_abort_if_not_~cond 1) (<= |#NULL.base| 0) (<= 0 |#t~string6.offset|) (<= 0 |#NULL.base|) (let ((.cse17 (select |#memory_int| |#t~string4.base|))) (let ((.cse0 (= 9 (select |#length| |#t~string5.base|))) (.cse1 (= 2 (select |#length| |#t~string4.base|))) (.cse2 (= (select |#valid| 0) 0)) (.cse3 (= (select |#valid| |#t~string6.base|) 1)) (.cse4 (= 48 (select .cse17 |#t~string4.offset|))) (.cse5 (= (select |#valid| |#t~string5.base|) 1)) (.cse6 (= (select |#valid| |#t~string4.base|) 1)) (.cse7 (= |#t~string5.offset| 0)) (.cse8 (< |#StackHeapBarrier| |#t~string6.base|)) (.cse9 (< |#StackHeapBarrier| |#t~string4.base|)) (.cse10 (= 12 (select |#length| |#t~string6.base|))) (.cse11 (= |ULTIMATE.start_assume_abort_if_not_#in~cond| ULTIMATE.start_assume_abort_if_not_~cond)) (.cse12 (< 0 |#StackHeapBarrier|)) (.cse13 (< |#StackHeapBarrier| |#t~string5.base|)) (.cse14 (= |#NULL.offset| 0)) (.cse15 (= (select .cse17 (+ |#t~string4.offset| 1)) 0)) (.cse16 (= 0 |#t~string4.offset|))) (or (and .cse0 .cse1 (= ULTIMATE.start_main_~c~0 1) .cse2 .cse3 .cse4 (< ULTIMATE.start_main_~c~0 (+ ULTIMATE.start_main_~k~0 1)) .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 (= ULTIMATE.start_main_~y~0 1) .cse14 .cse15 .cse16 (= ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (and .cse0 .cse1 .cse2 (= ULTIMATE.start_main_~y~0 0) .cse3 .cse4 .cse5 .cse6 (= ULTIMATE.start_main_~c~0 0) (= ULTIMATE.start_main_~x~0 0) .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16)))) (<= 1 |ULTIMATE.start_assume_abort_if_not_#in~cond|) (<= 0 ULTIMATE.start_main_~k~0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond| 1) (<= ULTIMATE.start_main_~k~0 1)) [2020-12-09 08:55:46,004 INFO L262 CegarLoopResult]: For program point L10-3(lines 10 13) no Hoare annotation was computed. [2020-12-09 08:55:46,004 INFO L258 CegarLoopResult]: At program point L10-5(lines 9 15) the Hoare annotation is: (or (and (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~x~0 0) (= ULTIMATE.start_main_~y~0 0)) (let ((.cse0 (select |#memory_int| |#t~string4.base|))) (and (= |ULTIMATE.start___VERIFIER_assert_#in~cond| ULTIMATE.start___VERIFIER_assert_~cond) (= (select |#valid| 0) 0) (< ULTIMATE.start_main_~c~0 (+ ULTIMATE.start_main_~k~0 1)) (= (select |#valid| |#t~string5.base|) 1) (= (select |#valid| |#t~string4.base|) 1) (= |#t~string5.offset| 0) (= 12 (select |#length| |#t~string6.base|)) (< |#StackHeapBarrier| |#t~string5.base|) (= |#NULL.offset| 0) (= 0 |#t~string4.offset|) (= ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)) (= |ULTIMATE.start___VERIFIER_assert_#in~cond| 1) (<= ULTIMATE.start_main_~k~0 1) (<= |#t~string6.offset| 0) (<= ULTIMATE.start_assume_abort_if_not_~cond 1) (= 9 (select |#length| |#t~string5.base|)) (= 2 (select |#length| |#t~string4.base|)) (<= |#NULL.base| 0) (<= 0 |#t~string6.offset|) (= (select |#valid| |#t~string6.base|) 1) (= 48 (select .cse0 |#t~string4.offset|)) (< |#StackHeapBarrier| |#t~string6.base|) (< |#StackHeapBarrier| |#t~string4.base|) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| ULTIMATE.start_assume_abort_if_not_~cond) (< 0 |#StackHeapBarrier|) (<= 1 ULTIMATE.start_main_~c~0) (<= 0 |#NULL.base|) (= ULTIMATE.start_main_~y~0 1) (<= 1 |ULTIMATE.start_assume_abort_if_not_#in~cond|) (= (select .cse0 (+ |#t~string4.offset| 1)) 0)))) [2020-12-09 08:55:46,004 INFO L262 CegarLoopResult]: For program point L10-6(lines 10 13) no Hoare annotation was computed. [2020-12-09 08:55:46,005 INFO L258 CegarLoopResult]: At program point L10-8(lines 9 15) the Hoare annotation is: (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) [2020-12-09 08:55:46,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 08:55:46 BoogieIcfgContainer [2020-12-09 08:55:46,028 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 08:55:46,028 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 08:55:46,028 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 08:55:46,029 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 08:55:46,029 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:54:34" (3/4) ... [2020-12-09 08:55:46,031 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 08:55:46,037 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-09 08:55:46,037 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-09 08:55:46,037 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-09 08:55:46,037 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 08:55:46,053 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((\valid[0] == 0 && y == 0) && \valid["ps4-ll.c"] == 1) && \valid["0"] == 1) && c == 0) && x == 0) && 0 <= "ps4-ll.c") && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "ps4-ll.c") && #NULL == 0) && 0 == "0") && k <= 1) && 9 == unknown-#length-unknown["ps4-ll.c"]) && 2 == unknown-#length-unknown["0"]) && #NULL == 0) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && "ps4-ll.c" <= 0) && \old(cond) == 1) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && 0 <= k) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) || (((((((((((((((((((((((((((((\valid[0] == 0 && c < k + 1) && \valid["ps4-ll.c"] == 1) && \valid["0"] == 1) && 1 == cond) && "ps4-ll.c" == 0) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "ps4-ll.c") && #NULL == 0) && 0 == "0") && x == y * y * y) && \old(cond) == 1) && k <= 1) && "reach_error" <= 0) && cond <= 1) && 9 == unknown-#length-unknown["ps4-ll.c"]) && 2 == unknown-#length-unknown["0"]) && #NULL <= 0) && 0 <= "reach_error") && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && 1 <= c) && 0 <= #NULL) && y == 1) && 1 <= \old(cond)) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) [2020-12-09 08:55:46,053 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((("reach_error" <= 0 && \old(cond) == cond) && cond <= 1) && #NULL <= 0) && 0 <= "reach_error") && 0 <= #NULL) && (((((((((((((((((((((9 == unknown-#length-unknown["ps4-ll.c"] && 2 == unknown-#length-unknown["0"]) && c == 1) && \valid[0] == 0) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && c < k + 1) && \valid["ps4-ll.c"] == 1) && \valid["0"] == 1) && "ps4-ll.c" == 0) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && 12 == unknown-#length-unknown["reach_error"]) && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && unknown-#StackHeapBarrier-unknown < "ps4-ll.c") && y == 1) && #NULL == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && 0 == "0") && x == y * y * y) || (((((((((((((((((((9 == unknown-#length-unknown["ps4-ll.c"] && 2 == unknown-#length-unknown["0"]) && \valid[0] == 0) && y == 0) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && \valid["ps4-ll.c"] == 1) && \valid["0"] == 1) && c == 0) && x == 0) && "ps4-ll.c" == 0) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && 12 == unknown-#length-unknown["reach_error"]) && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && unknown-#StackHeapBarrier-unknown < "ps4-ll.c") && #NULL == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && 0 == "0"))) && 1 <= \old(cond)) && 0 <= k) && \old(cond) == 1) && k <= 1 [2020-12-09 08:55:46,053 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((1 == cond && x == 0) && y == 0) || (((((((((((((((((((((((((((((\old(cond) == cond && \valid[0] == 0) && c < k + 1) && \valid["ps4-ll.c"] == 1) && \valid["0"] == 1) && "ps4-ll.c" == 0) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "ps4-ll.c") && #NULL == 0) && 0 == "0") && x == y * y * y) && \old(cond) == 1) && k <= 1) && "reach_error" <= 0) && cond <= 1) && 9 == unknown-#length-unknown["ps4-ll.c"]) && 2 == unknown-#length-unknown["0"]) && #NULL <= 0) && 0 <= "reach_error") && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && 1 <= c) && 0 <= #NULL) && y == 1) && 1 <= \old(cond)) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) [2020-12-09 08:55:46,063 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8ed12290-39d4-4960-b63c-85b70527c1dd/bin/utaipan/witness.graphml [2020-12-09 08:55:46,063 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 08:55:46,064 INFO L168 Benchmark]: Toolchain (without parser) took 72099.90 ms. Allocated memory is still 94.4 MB. Free memory was 69.5 MB in the beginning and 32.2 MB in the end (delta: 37.3 MB). Peak memory consumption was 37.3 MB. Max. memory is 16.1 GB. [2020-12-09 08:55:46,064 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 71.3 MB. Free memory is still 47.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 08:55:46,065 INFO L168 Benchmark]: CACSL2BoogieTranslator took 182.76 ms. Allocated memory is still 94.4 MB. Free memory was 69.3 MB in the beginning and 69.1 MB in the end (delta: 137.1 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 08:55:46,065 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.67 ms. Allocated memory is still 94.4 MB. Free memory was 68.9 MB in the beginning and 67.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 08:55:46,065 INFO L168 Benchmark]: Boogie Preprocessor took 18.10 ms. Allocated memory is still 94.4 MB. Free memory was 67.6 MB in the beginning and 66.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 08:55:46,066 INFO L168 Benchmark]: RCFGBuilder took 262.37 ms. Allocated memory is still 94.4 MB. Free memory was 66.3 MB in the beginning and 49.8 MB in the end (delta: 16.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-09 08:55:46,066 INFO L168 Benchmark]: TraceAbstraction took 71571.14 ms. Allocated memory is still 94.4 MB. Free memory was 49.2 MB in the beginning and 34.3 MB in the end (delta: 14.8 MB). Peak memory consumption was 24.7 MB. Max. memory is 16.1 GB. [2020-12-09 08:55:46,066 INFO L168 Benchmark]: Witness Printer took 35.15 ms. Allocated memory is still 94.4 MB. Free memory was 34.3 MB in the beginning and 32.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 08:55:46,068 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 71.3 MB. Free memory is still 47.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 182.76 ms. Allocated memory is still 94.4 MB. Free memory was 69.3 MB in the beginning and 69.1 MB in the end (delta: 137.1 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 24.67 ms. Allocated memory is still 94.4 MB. Free memory was 68.9 MB in the beginning and 67.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.10 ms. Allocated memory is still 94.4 MB. Free memory was 67.6 MB in the beginning and 66.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 262.37 ms. Allocated memory is still 94.4 MB. Free memory was 66.3 MB in the beginning and 49.8 MB in the end (delta: 16.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 71571.14 ms. Allocated memory is still 94.4 MB. Free memory was 49.2 MB in the beginning and 34.3 MB in the end (delta: 14.8 MB). Peak memory consumption was 24.7 MB. Max. memory is 16.1 GB. * Witness Printer took 35.15 ms. Allocated memory is still 94.4 MB. Free memory was 34.3 MB in the beginning and 32.2 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: - PositiveResult [Line: 12]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 12]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 12]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: ((1 == cond && x == 0) && y == 0) || (((((((((((((((((((((((((((((\old(cond) == cond && \valid[0] == 0) && c < k + 1) && \valid["ps4-ll.c"] == 1) && \valid["0"] == 1) && "ps4-ll.c" == 0) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "ps4-ll.c") && #NULL == 0) && 0 == "0") && x == y * y * y) && \old(cond) == 1) && k <= 1) && "reach_error" <= 0) && cond <= 1) && 9 == unknown-#length-unknown["ps4-ll.c"]) && 2 == unknown-#length-unknown["0"]) && #NULL <= 0) && 0 <= "reach_error") && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && 1 <= c) && 0 <= #NULL) && y == 1) && 1 <= \old(cond)) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: !(0 == cond) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((((("reach_error" <= 0 && \old(cond) == cond) && cond <= 1) && #NULL <= 0) && 0 <= "reach_error") && 0 <= #NULL) && (((((((((((((((((((((9 == unknown-#length-unknown["ps4-ll.c"] && 2 == unknown-#length-unknown["0"]) && c == 1) && \valid[0] == 0) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && c < k + 1) && \valid["ps4-ll.c"] == 1) && \valid["0"] == 1) && "ps4-ll.c" == 0) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && 12 == unknown-#length-unknown["reach_error"]) && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && unknown-#StackHeapBarrier-unknown < "ps4-ll.c") && y == 1) && #NULL == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && 0 == "0") && x == y * y * y) || (((((((((((((((((((9 == unknown-#length-unknown["ps4-ll.c"] && 2 == unknown-#length-unknown["0"]) && \valid[0] == 0) && y == 0) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && \valid["ps4-ll.c"] == 1) && \valid["0"] == 1) && c == 0) && x == 0) && "ps4-ll.c" == 0) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && 12 == unknown-#length-unknown["reach_error"]) && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && unknown-#StackHeapBarrier-unknown < "ps4-ll.c") && #NULL == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && 0 == "0"))) && 1 <= \old(cond)) && 0 <= k) && \old(cond) == 1) && k <= 1 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((\valid[0] == 0 && y == 0) && \valid["ps4-ll.c"] == 1) && \valid["0"] == 1) && c == 0) && x == 0) && 0 <= "ps4-ll.c") && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "ps4-ll.c") && #NULL == 0) && 0 == "0") && k <= 1) && 9 == unknown-#length-unknown["ps4-ll.c"]) && 2 == unknown-#length-unknown["0"]) && #NULL == 0) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && "ps4-ll.c" <= 0) && \old(cond) == 1) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && 0 <= k) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) || (((((((((((((((((((((((((((((\valid[0] == 0 && c < k + 1) && \valid["ps4-ll.c"] == 1) && \valid["0"] == 1) && 1 == cond) && "ps4-ll.c" == 0) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "ps4-ll.c") && #NULL == 0) && 0 == "0") && x == y * y * y) && \old(cond) == 1) && k <= 1) && "reach_error" <= 0) && cond <= 1) && 9 == unknown-#length-unknown["ps4-ll.c"]) && 2 == unknown-#length-unknown["0"]) && #NULL <= 0) && 0 <= "reach_error") && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && 1 <= c) && 0 <= #NULL) && y == 1) && 1 <= \old(cond)) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 70.5s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 65.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 21 SDtfs, 40 SDslu, 31 SDs, 0 SdLazy, 42 SolverSat, 26 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 61.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 32 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 7.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=1, 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, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 12 NumberOfFragments, 569 HoareAnnotationTreeSize, 4 FomulaSimplifications, 6 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 576 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 2445 SizeOfPredicates, 14 NumberOfNonLiveVariables, 195 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 14/20 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]: 340, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 7, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 12, TOOLS_POST_TIME[ms]: 197, 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: 12, TOOLS_QUANTIFIERELIM_TIME[ms]: 192, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 151, FLUID_QUERY_TIME[ms]: 2, FLUID_QUERIES: 24, 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: 1, DOMAIN_WIDEN_TIME[ms]: 77, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME[ms]: 7, DOMAIN_ISBOTTOM_APPLICATIONS: 7, DOMAIN_ISBOTTOM_TIME[ms]: 30, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 111, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 111, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, 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]: 1, PATH_EXPR_TIME[ms]: 2, REGEX_TO_DAG_TIME[ms]: 2, DAG_COMPRESSION_TIME[ms]: 5, DAG_COMPRESSION_PROCESSED_NODES: 53, DAG_COMPRESSION_RETAINED_NODES: 24, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...