./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/mcmillan2006.i --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_b9025164-fb26-486e-ada4-961c455a1a1d/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b9025164-fb26-486e-ada4-961c455a1a1d/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b9025164-fb26-486e-ada4-961c455a1a1d/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b9025164-fb26-486e-ada4-961c455a1a1d/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-lit/mcmillan2006.i -s /tmp/vcloud-vcloud-master/worker/run_dir_b9025164-fb26-486e-ada4-961c455a1a1d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b9025164-fb26-486e-ada4-961c455a1a1d/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 0e5db84b9f9b462c8c6fbeb8b453779946c1329e ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 11:12:52,202 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 11:12:52,204 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 11:12:52,240 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 11:12:52,241 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 11:12:52,242 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 11:12:52,244 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 11:12:52,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 11:12:52,248 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 11:12:52,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 11:12:52,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 11:12:52,251 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 11:12:52,252 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 11:12:52,253 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 11:12:52,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 11:12:52,255 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 11:12:52,256 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 11:12:52,257 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 11:12:52,259 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 11:12:52,261 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 11:12:52,263 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 11:12:52,264 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 11:12:52,265 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 11:12:52,266 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 11:12:52,269 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 11:12:52,270 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 11:12:52,270 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 11:12:52,271 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 11:12:52,271 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 11:12:52,272 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 11:12:52,273 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 11:12:52,274 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 11:12:52,274 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 11:12:52,275 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 11:12:52,276 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 11:12:52,276 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 11:12:52,277 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 11:12:52,277 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 11:12:52,277 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 11:12:52,278 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 11:12:52,278 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 11:12:52,279 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b9025164-fb26-486e-ada4-961c455a1a1d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 11:12:52,300 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 11:12:52,300 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 11:12:52,301 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 11:12:52,301 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 11:12:52,301 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 11:12:52,301 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 11:12:52,301 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 11:12:52,301 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 11:12:52,302 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 11:12:52,302 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 11:12:52,302 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 11:12:52,302 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 11:12:52,302 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 11:12:52,303 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 11:12:52,303 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 11:12:52,303 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 11:12:52,303 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 11:12:52,303 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 11:12:52,304 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 11:12:52,304 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 11:12:52,304 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 11:12:52,304 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 11:12:52,304 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 11:12:52,304 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 11:12:52,304 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 11:12:52,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 11:12:52,304 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 11:12:52,304 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 11:12:52,305 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 11:12:52,305 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 11:12:52,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 11:12:52,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 11:12:52,305 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 11:12:52,305 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 11:12:52,305 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 11:12:52,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 11:12:52,306 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 11:12:52,306 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 11:12:52,306 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 11:12:52,306 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_b9025164-fb26-486e-ada4-961c455a1a1d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b9025164-fb26-486e-ada4-961c455a1a1d/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e5db84b9f9b462c8c6fbeb8b453779946c1329e [2020-12-09 11:12:52,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 11:12:52,494 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 11:12:52,496 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 11:12:52,497 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 11:12:52,497 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 11:12:52,498 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b9025164-fb26-486e-ada4-961c455a1a1d/bin/utaipan/../../sv-benchmarks/c/loop-lit/mcmillan2006.i [2020-12-09 11:12:52,540 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b9025164-fb26-486e-ada4-961c455a1a1d/bin/utaipan/data/a36af1505/4d90169577a64c2b8f0eb75a6f6a23b9/FLAG588134856 [2020-12-09 11:12:52,912 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 11:12:52,912 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b9025164-fb26-486e-ada4-961c455a1a1d/sv-benchmarks/c/loop-lit/mcmillan2006.i [2020-12-09 11:12:52,917 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b9025164-fb26-486e-ada4-961c455a1a1d/bin/utaipan/data/a36af1505/4d90169577a64c2b8f0eb75a6f6a23b9/FLAG588134856 [2020-12-09 11:12:52,926 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b9025164-fb26-486e-ada4-961c455a1a1d/bin/utaipan/data/a36af1505/4d90169577a64c2b8f0eb75a6f6a23b9 [2020-12-09 11:12:52,928 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 11:12:52,929 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 11:12:52,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 11:12:52,930 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 11:12:52,933 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 11:12:52,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:12:52" (1/1) ... [2020-12-09 11:12:52,935 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30911941 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:52, skipping insertion in model container [2020-12-09 11:12:52,935 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:12:52" (1/1) ... [2020-12-09 11:12:52,940 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 11:12:52,950 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 11:12:53,061 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_b9025164-fb26-486e-ada4-961c455a1a1d/sv-benchmarks/c/loop-lit/mcmillan2006.i[1009,1022] [2020-12-09 11:12:53,072 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 11:12:53,081 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 11:12:53,093 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_b9025164-fb26-486e-ada4-961c455a1a1d/sv-benchmarks/c/loop-lit/mcmillan2006.i[1009,1022] [2020-12-09 11:12:53,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 11:12:53,112 INFO L208 MainTranslator]: Completed translation [2020-12-09 11:12:53,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:53 WrapperNode [2020-12-09 11:12:53,112 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 11:12:53,114 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 11:12:53,114 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 11:12:53,114 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 11:12:53,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:53" (1/1) ... [2020-12-09 11:12:53,125 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:53" (1/1) ... [2020-12-09 11:12:53,137 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 11:12:53,137 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 11:12:53,137 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 11:12:53,138 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 11:12:53,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:53" (1/1) ... [2020-12-09 11:12:53,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:53" (1/1) ... [2020-12-09 11:12:53,145 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:53" (1/1) ... [2020-12-09 11:12:53,145 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:53" (1/1) ... [2020-12-09 11:12:53,148 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:53" (1/1) ... [2020-12-09 11:12:53,151 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:53" (1/1) ... [2020-12-09 11:12:53,152 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:53" (1/1) ... [2020-12-09 11:12:53,153 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 11:12:53,154 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 11:12:53,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 11:12:53,154 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 11:12:53,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b9025164-fb26-486e-ada4-961c455a1a1d/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 11:12:53,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 11:12:53,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 11:12:53,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-09 11:12:53,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-09 11:12:53,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 11:12:53,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 11:12:53,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-09 11:12:53,387 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 11:12:53,388 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-09 11:12:53,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:12:53 BoogieIcfgContainer [2020-12-09 11:12:53,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 11:12:53,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 11:12:53,391 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 11:12:53,393 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 11:12:53,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 11:12:52" (1/3) ... [2020-12-09 11:12:53,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f496d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 11:12:53, skipping insertion in model container [2020-12-09 11:12:53,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:53" (2/3) ... [2020-12-09 11:12:53,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f496d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 11:12:53, skipping insertion in model container [2020-12-09 11:12:53,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:12:53" (3/3) ... [2020-12-09 11:12:53,395 INFO L111 eAbstractionObserver]: Analyzing ICFG mcmillan2006.i [2020-12-09 11:12:53,405 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 11:12:53,408 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 11:12:53,415 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 11:12:53,433 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 11:12:53,433 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 11:12:53,433 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 11:12:53,433 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 11:12:53,433 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 11:12:53,433 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 11:12:53,433 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 11:12:53,433 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 11:12:53,442 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-12-09 11:12:53,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 11:12:53,445 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:12:53,446 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 11:12:53,446 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:12:53,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:12:53,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1967874018, now seen corresponding path program 1 times [2020-12-09 11:12:53,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 11:12:53,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186680554] [2020-12-09 11:12:53,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 11:12:53,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:12:53,597 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 11:12:53,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186680554] [2020-12-09 11:12:53,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 11:12:53,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 11:12:53,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634074109] [2020-12-09 11:12:53,602 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 11:12:53,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 11:12:53,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 11:12:53,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 11:12:53,616 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 4 states. [2020-12-09 11:12:53,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 11:12:53,661 INFO L93 Difference]: Finished difference Result 21 states and 26 transitions. [2020-12-09 11:12:53,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 11:12:53,662 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-12-09 11:12:53,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 11:12:53,668 INFO L225 Difference]: With dead ends: 21 [2020-12-09 11:12:53,668 INFO L226 Difference]: Without dead ends: 9 [2020-12-09 11:12:53,670 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 11:12:53,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-12-09 11:12:53,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-12-09 11:12:53,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-12-09 11:12:53,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2020-12-09 11:12:53,701 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 6 [2020-12-09 11:12:53,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 11:12:53,701 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2020-12-09 11:12:53,701 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 11:12:53,701 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2020-12-09 11:12:53,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-09 11:12:53,701 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:12:53,701 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-09 11:12:53,702 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 11:12:53,702 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:12:53,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:12:53,703 INFO L82 PathProgramCache]: Analyzing trace with hash -877474843, now seen corresponding path program 1 times [2020-12-09 11:12:53,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 11:12:53,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725150814] [2020-12-09 11:12:53,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 11:12:53,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:12:53,819 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 11:12:53,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725150814] [2020-12-09 11:12:53,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104109932] [2020-12-09 11:12:53,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b9025164-fb26-486e-ada4-961c455a1a1d/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 11:12:53,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:12:53,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-09 11:12:53,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:12:53,900 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-09 11:12:53,901 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-09 11:12:53,903 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 11:12:53,903 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 11:12:53,904 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2020-12-09 11:12:53,941 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 11:12:53,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 11:12:53,959 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 11:12:53,981 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2020-12-09 11:12:53,986 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2020-12-09 11:12:53,989 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 11:12:53,991 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 11:12:53,991 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 11:12:53,993 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 11:12:53,993 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-09 11:12:53,993 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:14, output treesize:5 [2020-12-09 11:12:53,999 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 11:12:53,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [324574030] [2020-12-09 11:12:54,016 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2020-12-09 11:12:54,016 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 11:12:54,019 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 11:12:54,023 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 11:12:54,024 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 11:12:54,485 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 11:12:54,910 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 11:12:54,911 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-12-09 11:12:54,911 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2020-12-09 11:12:54,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093147445] [2020-12-09 11:12:54,912 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-09 11:12:54,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 11:12:54,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-09 11:12:54,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2020-12-09 11:12:54,914 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand 11 states. [2020-12-09 11:12:54,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 11:12:54,981 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2020-12-09 11:12:54,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-09 11:12:54,981 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 7 [2020-12-09 11:12:54,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 11:12:54,982 INFO L225 Difference]: With dead ends: 15 [2020-12-09 11:12:54,982 INFO L226 Difference]: Without dead ends: 13 [2020-12-09 11:12:54,983 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2020-12-09 11:12:54,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-12-09 11:12:54,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2020-12-09 11:12:54,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-12-09 11:12:54,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2020-12-09 11:12:54,985 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 7 [2020-12-09 11:12:54,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 11:12:54,985 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2020-12-09 11:12:54,985 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-09 11:12:54,985 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2020-12-09 11:12:54,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 11:12:54,985 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:12:54,985 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 11:12:55,186 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-09 11:12:55,187 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:12:55,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:12:55,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1676901619, now seen corresponding path program 1 times [2020-12-09 11:12:55,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 11:12:55,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441991288] [2020-12-09 11:12:55,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 11:12:55,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:12:55,254 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 11:12:55,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441991288] [2020-12-09 11:12:55,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465448285] [2020-12-09 11:12:55,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b9025164-fb26-486e-ada4-961c455a1a1d/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 11:12:55,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:12:55,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 11:12:55,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:12:55,309 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 11:12:55,310 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 11:12:55,332 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 11:12:55,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1964018990] [2020-12-09 11:12:55,336 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2020-12-09 11:12:55,336 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 11:12:55,336 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 11:12:55,336 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 11:12:55,336 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 11:12:55,667 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 11:12:56,112 WARN L197 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2020-12-09 11:12:56,280 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 11:12:56,280 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-12-09 11:12:56,280 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2020-12-09 11:12:56,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550542818] [2020-12-09 11:12:56,280 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-09 11:12:56,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 11:12:56,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-09 11:12:56,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2020-12-09 11:12:56,281 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand 10 states. [2020-12-09 11:12:56,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 11:12:56,319 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2020-12-09 11:12:56,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 11:12:56,319 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 10 [2020-12-09 11:12:56,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 11:12:56,320 INFO L225 Difference]: With dead ends: 21 [2020-12-09 11:12:56,320 INFO L226 Difference]: Without dead ends: 12 [2020-12-09 11:12:56,320 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2020-12-09 11:12:56,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-12-09 11:12:56,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-12-09 11:12:56,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-12-09 11:12:56,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2020-12-09 11:12:56,323 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 10 [2020-12-09 11:12:56,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 11:12:56,323 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2020-12-09 11:12:56,323 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-09 11:12:56,323 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2020-12-09 11:12:56,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-09 11:12:56,324 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:12:56,324 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 11:12:56,525 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 11:12:56,526 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:12:56,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:12:56,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1762561196, now seen corresponding path program 2 times [2020-12-09 11:12:56,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 11:12:56,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655242725] [2020-12-09 11:12:56,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 11:12:56,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:12:56,594 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 11:12:56,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655242725] [2020-12-09 11:12:56,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238705668] [2020-12-09 11:12:56,595 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b9025164-fb26-486e-ada4-961c455a1a1d/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 11:12:56,622 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-12-09 11:12:56,622 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-09 11:12:56,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 21 conjunts are in the unsatisfiable core [2020-12-09 11:12:56,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:12:56,808 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 11:12:56,808 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 11:12:56,934 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 11:12:56,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [100003727] [2020-12-09 11:12:56,936 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2020-12-09 11:12:56,936 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 11:12:56,936 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 11:12:56,936 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 11:12:56,936 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 11:12:57,165 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 11:12:57,615 WARN L197 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2020-12-09 11:12:57,796 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 11:12:57,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-12-09 11:12:57,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 19 [2020-12-09 11:12:57,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888338558] [2020-12-09 11:12:57,797 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-12-09 11:12:57,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 11:12:57,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-12-09 11:12:57,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=522, Unknown=0, NotChecked=0, Total=600 [2020-12-09 11:12:57,798 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand 19 states. [2020-12-09 11:12:58,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 11:12:58,292 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2020-12-09 11:12:58,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-09 11:12:58,292 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 11 [2020-12-09 11:12:58,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 11:12:58,292 INFO L225 Difference]: With dead ends: 22 [2020-12-09 11:12:58,292 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 11:12:58,293 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=225, Invalid=1181, Unknown=0, NotChecked=0, Total=1406 [2020-12-09 11:12:58,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 11:12:58,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 11:12:58,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 11:12:58,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 11:12:58,294 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-12-09 11:12:58,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 11:12:58,294 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 11:12:58,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-12-09 11:12:58,294 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 11:12:58,294 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 11:12:58,495 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2020-12-09 11:12:58,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 11:12:58,698 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 43 [2020-12-09 11:12:58,976 WARN L197 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 55 [2020-12-09 11:12:58,978 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 11:12:58,978 INFO L258 CegarLoopResult]: At program point L31-3(line 31) the Hoare annotation is: (let ((.cse8 (+ ULTIMATE.start_main_~x~0.offset (* ULTIMATE.start_main_~i~1 4))) (.cse9 (select |#memory_int| ULTIMATE.start_main_~x~0.base))) (let ((.cse3 (= (select .cse9 (+ ULTIMATE.start_main_~x~0.offset 4)) 0)) (.cse1 (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) (.cse2 (= ULTIMATE.start_main_~x~0.offset 0)) (.cse4 (= (select .cse9 0) 0)) (.cse0 (forall ((v_ULTIMATE.start_main_~i~1_25 Int)) (or (< v_ULTIMATE.start_main_~i~1_25 1) (= (select (select |#memory_int| ULTIMATE.start_main_~x~0.base) (+ ULTIMATE.start_main_~x~0.offset (* v_ULTIMATE.start_main_~i~1_25 4))) 0) (<= ULTIMATE.start_main_~i~0 v_ULTIMATE.start_main_~i~1_25)))) (.cse7 (= ULTIMATE.start_main_~i~1 0)) (.cse5 (forall ((v_ULTIMATE.start_main_~i~1_25 Int)) (or (< v_ULTIMATE.start_main_~i~1_25 (+ ULTIMATE.start_main_~i~1 1)) (= (select (select |#memory_int| ULTIMATE.start_main_~x~0.base) (+ ULTIMATE.start_main_~x~0.offset (* v_ULTIMATE.start_main_~i~1_25 4))) 0) (<= ULTIMATE.start_main_~n~0 v_ULTIMATE.start_main_~i~1_25)))) (.cse6 (= 0 (select .cse9 .cse8)))) (or (and .cse0 .cse1 .cse2 (<= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~i~1) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse3 .cse5 .cse4 .cse6) (and .cse1 .cse2 (<= 1 ULTIMATE.start_main_~i~1) (<= ULTIMATE.start_main_~n~0 1) (<= ULTIMATE.start_main_~i~0 1) .cse4) (and (= ULTIMATE.start_main_~i~0 0) .cse7 (<= ULTIMATE.start_main_~n~0 0)) (and .cse0 (= .cse8 0) .cse7 .cse5 .cse6)))) [2020-12-09 11:12:58,978 INFO L262 CegarLoopResult]: For program point L19(lines 19 21) no Hoare annotation was computed. [2020-12-09 11:12:58,978 INFO L258 CegarLoopResult]: At program point L19-2(lines 18 23) the Hoare annotation is: (let ((.cse3 (select |#memory_int| ULTIMATE.start_main_~x~0.base))) (let ((.cse0 (forall ((v_ULTIMATE.start_main_~i~1_25 Int)) (or (< v_ULTIMATE.start_main_~i~1_25 1) (= (select (select |#memory_int| ULTIMATE.start_main_~x~0.base) (+ ULTIMATE.start_main_~x~0.offset (* v_ULTIMATE.start_main_~i~1_25 4))) 0) (<= ULTIMATE.start_main_~i~0 v_ULTIMATE.start_main_~i~1_25)))) (.cse1 (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) (.cse2 (= ULTIMATE.start_main_~x~0.offset 0)) (.cse4 (forall ((v_ULTIMATE.start_main_~i~1_25 Int)) (or (< v_ULTIMATE.start_main_~i~1_25 (+ ULTIMATE.start_main_~i~1 1)) (= (select (select |#memory_int| ULTIMATE.start_main_~x~0.base) (+ ULTIMATE.start_main_~x~0.offset (* v_ULTIMATE.start_main_~i~1_25 4))) 0) (<= ULTIMATE.start_main_~n~0 v_ULTIMATE.start_main_~i~1_25)))) (.cse5 (= (select .cse3 0) 0))) (or (and .cse0 .cse1 .cse2 (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (select .cse3 (+ ULTIMATE.start_main_~x~0.offset 4)) 0) .cse4 .cse5 (= 0 (select .cse3 (+ ULTIMATE.start_main_~x~0.offset (* ULTIMATE.start_main_~i~1 4))))) (and .cse0 .cse1 .cse2 (= ULTIMATE.start_main_~i~1 0) .cse4 .cse5)))) [2020-12-09 11:12:58,978 INFO L265 CegarLoopResult]: At program point L32(lines 26 33) the Hoare annotation is: true [2020-12-09 11:12:58,978 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 11:12:58,978 INFO L262 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-12-09 11:12:58,978 INFO L258 CegarLoopResult]: At program point L30-3(line 30) the Hoare annotation is: (let ((.cse1 (select |#memory_int| ULTIMATE.start_main_~x~0.base))) (let ((.cse0 (= ULTIMATE.start_main_~x~0.offset 0)) (.cse2 (= (select .cse1 0) 0))) (or (and (forall ((v_ULTIMATE.start_main_~i~1_25 Int)) (or (< v_ULTIMATE.start_main_~i~1_25 1) (= (select (select |#memory_int| ULTIMATE.start_main_~x~0.base) (+ ULTIMATE.start_main_~x~0.offset (* v_ULTIMATE.start_main_~i~1_25 4))) 0) (<= ULTIMATE.start_main_~i~0 v_ULTIMATE.start_main_~i~1_25))) .cse0 (= (select .cse1 (+ ULTIMATE.start_main_~x~0.offset 4)) 0) .cse2) (and (= ULTIMATE.start_main_~i~0 0) (= (+ ULTIMATE.start_main_~x~0.offset (* ULTIMATE.start_main_~i~0 4)) 0)) (and .cse0 (<= ULTIMATE.start_main_~i~0 1) (<= 1 ULTIMATE.start_main_~i~0) .cse2)))) [2020-12-09 11:12:58,979 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2020-12-09 11:12:58,979 INFO L262 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-12-09 11:12:58,984 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,985 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,985 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,989 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,989 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,989 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,991 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,991 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,991 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,991 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,991 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,992 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,992 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,992 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,992 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,992 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,992 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,992 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,993 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,993 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,993 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,993 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,994 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,994 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,994 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,994 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,994 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,994 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,994 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,994 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,995 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,995 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,995 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,996 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,996 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,996 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,996 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,996 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,996 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,996 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,996 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,996 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,997 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,997 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,997 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,998 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,998 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,998 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,998 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,998 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,998 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,999 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,999 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,999 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,999 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,999 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,999 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,999 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,999 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:58,999 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 11:12:59 BoogieIcfgContainer [2020-12-09 11:12:59,002 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 11:12:59,002 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 11:12:59,002 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 11:12:59,002 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 11:12:59,002 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:12:53" (3/4) ... [2020-12-09 11:12:59,004 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 11:12:59,010 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-12-09 11:12:59,010 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-09 11:12:59,010 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 11:12:59,010 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 11:12:59,034 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b9025164-fb26-486e-ada4-961c455a1a1d/bin/utaipan/witness.graphml [2020-12-09 11:12:59,034 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 11:12:59,035 INFO L168 Benchmark]: Toolchain (without parser) took 6105.78 ms. Allocated memory was 102.8 MB in the beginning and 182.5 MB in the end (delta: 79.7 MB). Free memory was 66.2 MB in the beginning and 127.7 MB in the end (delta: -61.5 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. [2020-12-09 11:12:59,035 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 102.8 MB. Free memory is still 82.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 11:12:59,036 INFO L168 Benchmark]: CACSL2BoogieTranslator took 182.62 ms. Allocated memory is still 102.8 MB. Free memory was 66.0 MB in the beginning and 78.9 MB in the end (delta: -13.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 11:12:59,036 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.17 ms. Allocated memory is still 102.8 MB. Free memory was 78.9 MB in the beginning and 77.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 11:12:59,036 INFO L168 Benchmark]: Boogie Preprocessor took 15.90 ms. Allocated memory is still 102.8 MB. Free memory was 77.6 MB in the beginning and 76.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 11:12:59,036 INFO L168 Benchmark]: RCFGBuilder took 235.67 ms. Allocated memory is still 102.8 MB. Free memory was 76.5 MB in the beginning and 60.5 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-12-09 11:12:59,037 INFO L168 Benchmark]: TraceAbstraction took 5611.17 ms. Allocated memory was 102.8 MB in the beginning and 182.5 MB in the end (delta: 79.7 MB). Free memory was 60.1 MB in the beginning and 130.8 MB in the end (delta: -70.8 MB). Peak memory consumption was 85.2 MB. Max. memory is 16.1 GB. [2020-12-09 11:12:59,037 INFO L168 Benchmark]: Witness Printer took 32.52 ms. Allocated memory is still 182.5 MB. Free memory was 130.8 MB in the beginning and 127.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 11:12:59,039 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 102.8 MB. Free memory is still 82.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 182.62 ms. Allocated memory is still 102.8 MB. Free memory was 66.0 MB in the beginning and 78.9 MB in the end (delta: -13.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 23.17 ms. Allocated memory is still 102.8 MB. Free memory was 78.9 MB in the beginning and 77.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 15.90 ms. Allocated memory is still 102.8 MB. Free memory was 77.6 MB in the beginning and 76.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 235.67 ms. Allocated memory is still 102.8 MB. Free memory was 76.5 MB in the beginning and 60.5 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5611.17 ms. Allocated memory was 102.8 MB in the beginning and 182.5 MB in the end (delta: 79.7 MB). Free memory was 60.1 MB in the beginning and 130.8 MB in the end (delta: -70.8 MB). Peak memory consumption was 85.2 MB. Max. memory is 16.1 GB. * Witness Printer took 32.52 ms. Allocated memory is still 182.5 MB. Free memory was 130.8 MB in the beginning and 127.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 20]: 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 1 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 30]: Loop Invariant [2020-12-09 11:12:59,043 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,043 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,043 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,044 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,044 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,044 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] Derived loop invariant: (((((forall v_ULTIMATE.start_main_~i~1_25 : int :: (v_ULTIMATE.start_main_~i~1_25 < 1 || unknown-#memory_int-unknown[x][x + v_ULTIMATE.start_main_~i~1_25 * 4] == 0) || i <= v_ULTIMATE.start_main_~i~1_25) && x == 0) && unknown-#memory_int-unknown[x][x + 4] == 0) && unknown-#memory_int-unknown[x][0] == 0) || (i == 0 && x + i * 4 == 0)) || (((x == 0 && i <= 1) && 1 <= i) && unknown-#memory_int-unknown[x][0] == 0) - InvariantResult [Line: 18]: Loop Invariant [2020-12-09 11:12:59,044 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,045 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,045 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,045 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,045 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,045 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,045 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,045 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,045 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,045 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,045 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,045 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,046 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,046 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,046 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,046 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,046 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,047 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,047 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,047 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,047 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,047 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,047 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,047 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] Derived loop invariant: ((((((((forall v_ULTIMATE.start_main_~i~1_25 : int :: (v_ULTIMATE.start_main_~i~1_25 < 1 || unknown-#memory_int-unknown[x][x + v_ULTIMATE.start_main_~i~1_25 * 4] == 0) || i <= v_ULTIMATE.start_main_~i~1_25) && !(0 == cond)) && x == 0) && 1 == cond) && unknown-#memory_int-unknown[x][x + 4] == 0) && (forall v_ULTIMATE.start_main_~i~1_25 : int :: (v_ULTIMATE.start_main_~i~1_25 < i + 1 || unknown-#memory_int-unknown[x][x + v_ULTIMATE.start_main_~i~1_25 * 4] == 0) || n <= v_ULTIMATE.start_main_~i~1_25)) && unknown-#memory_int-unknown[x][0] == 0) && 0 == unknown-#memory_int-unknown[x][x + i * 4]) || ((((((forall v_ULTIMATE.start_main_~i~1_25 : int :: (v_ULTIMATE.start_main_~i~1_25 < 1 || unknown-#memory_int-unknown[x][x + v_ULTIMATE.start_main_~i~1_25 * 4] == 0) || i <= v_ULTIMATE.start_main_~i~1_25) && !(0 == cond)) && x == 0) && i == 0) && (forall v_ULTIMATE.start_main_~i~1_25 : int :: (v_ULTIMATE.start_main_~i~1_25 < i + 1 || unknown-#memory_int-unknown[x][x + v_ULTIMATE.start_main_~i~1_25 * 4] == 0) || n <= v_ULTIMATE.start_main_~i~1_25)) && unknown-#memory_int-unknown[x][0] == 0) - InvariantResult [Line: 31]: Loop Invariant [2020-12-09 11:12:59,048 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,048 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,048 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,048 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,048 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,048 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,048 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,048 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,048 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,049 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,049 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,049 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,049 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,049 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,049 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,050 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,050 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,050 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,050 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,050 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,050 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,051 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,051 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,051 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,051 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,051 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,051 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,051 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,051 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] [2020-12-09 11:12:59,051 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~1_25,QUANTIFIED] Derived loop invariant: ((((((((((forall v_ULTIMATE.start_main_~i~1_25 : int :: (v_ULTIMATE.start_main_~i~1_25 < 1 || unknown-#memory_int-unknown[x][x + v_ULTIMATE.start_main_~i~1_25 * 4] == 0) || i <= v_ULTIMATE.start_main_~i~1_25) && !(0 == cond)) && x == 0) && n <= i) && 1 == cond) && unknown-#memory_int-unknown[x][x + 4] == 0) && unknown-#memory_int-unknown[x][0] == 0) || (((((((forall v_ULTIMATE.start_main_~i~1_25 : int :: (v_ULTIMATE.start_main_~i~1_25 < 1 || unknown-#memory_int-unknown[x][x + v_ULTIMATE.start_main_~i~1_25 * 4] == 0) || i <= v_ULTIMATE.start_main_~i~1_25) && !(0 == cond)) && x == 0) && unknown-#memory_int-unknown[x][x + 4] == 0) && (forall v_ULTIMATE.start_main_~i~1_25 : int :: (v_ULTIMATE.start_main_~i~1_25 < i + 1 || unknown-#memory_int-unknown[x][x + v_ULTIMATE.start_main_~i~1_25 * 4] == 0) || n <= v_ULTIMATE.start_main_~i~1_25)) && unknown-#memory_int-unknown[x][0] == 0) && 0 == unknown-#memory_int-unknown[x][x + i * 4])) || (((((!(0 == cond) && x == 0) && 1 <= i) && n <= 1) && i <= 1) && unknown-#memory_int-unknown[x][0] == 0)) || ((i == 0 && i == 0) && n <= 0)) || (((((forall v_ULTIMATE.start_main_~i~1_25 : int :: (v_ULTIMATE.start_main_~i~1_25 < 1 || unknown-#memory_int-unknown[x][x + v_ULTIMATE.start_main_~i~1_25 * 4] == 0) || i <= v_ULTIMATE.start_main_~i~1_25) && x + i * 4 == 0) && i == 0) && (forall v_ULTIMATE.start_main_~i~1_25 : int :: (v_ULTIMATE.start_main_~i~1_25 < i + 1 || unknown-#memory_int-unknown[x][x + v_ULTIMATE.start_main_~i~1_25 * 4] == 0) || n <= v_ULTIMATE.start_main_~i~1_25)) && 0 == unknown-#memory_int-unknown[x][x + i * 4]) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.0s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 22 SDtfs, 53 SDslu, 52 SDs, 0 SdLazy, 208 SolverSat, 64 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 47 SyntacticMatches, 2 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 23 NumberOfFragments, 427 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 783 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 80 ConstructedInterpolants, 9 QuantifiedInterpolants, 5070 SizeOfPredicates, 28 NumberOfNonLiveVariables, 204 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 6/27 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...