./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-industry-pattern/mod3_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0e089904-a47b-4e56-9dec-a69a1f6127de/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0e089904-a47b-4e56-9dec-a69a1f6127de/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0e089904-a47b-4e56-9dec-a69a1f6127de/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0e089904-a47b-4e56-9dec-a69a1f6127de/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/mod3_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0e089904-a47b-4e56-9dec-a69a1f6127de/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0e089904-a47b-4e56-9dec-a69a1f6127de/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 950698bc17a751834ff482c414f89d89b98af415 ........................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 19:41:12,165 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 19:41:12,166 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 19:41:12,172 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 19:41:12,172 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 19:41:12,173 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 19:41:12,173 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 19:41:12,174 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 19:41:12,175 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 19:41:12,175 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 19:41:12,175 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 19:41:12,176 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 19:41:12,176 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 19:41:12,177 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 19:41:12,177 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 19:41:12,177 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 19:41:12,178 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 19:41:12,179 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 19:41:12,179 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 19:41:12,180 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 19:41:12,181 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 19:41:12,181 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 19:41:12,182 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 19:41:12,182 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 19:41:12,182 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 19:41:12,183 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 19:41:12,183 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 19:41:12,184 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 19:41:12,184 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 19:41:12,185 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 19:41:12,185 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 19:41:12,185 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 19:41:12,185 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 19:41:12,185 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 19:41:12,186 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 19:41:12,186 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 19:41:12,186 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0e089904-a47b-4e56-9dec-a69a1f6127de/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 19:41:12,193 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 19:41:12,194 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 19:41:12,194 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 19:41:12,194 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 19:41:12,194 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 19:41:12,194 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 19:41:12,194 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 19:41:12,195 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 19:41:12,195 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 19:41:12,195 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 19:41:12,195 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 19:41:12,195 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 19:41:12,195 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 19:41:12,195 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 19:41:12,195 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 19:41:12,195 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 19:41:12,195 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 19:41:12,196 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 19:41:12,196 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 19:41:12,196 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 19:41:12,196 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 19:41:12,196 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 19:41:12,196 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 19:41:12,196 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 19:41:12,196 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 19:41:12,196 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 19:41:12,196 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 19:41:12,196 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 19:41:12,196 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:41:12,197 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 19:41:12,197 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 19:41:12,197 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 19:41:12,197 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 19:41:12,197 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 19:41:12,197 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 19:41:12,197 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 19:41:12,197 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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/working_dir_0e089904-a47b-4e56-9dec-a69a1f6127de/bin-2019/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(__VERIFIER_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 -> 950698bc17a751834ff482c414f89d89b98af415 [2018-12-09 19:41:12,214 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 19:41:12,224 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 19:41:12,226 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 19:41:12,227 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 19:41:12,228 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 19:41:12,228 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0e089904-a47b-4e56-9dec-a69a1f6127de/bin-2019/utaipan/../../sv-benchmarks/c/loop-industry-pattern/mod3_true-unreach-call.c [2018-12-09 19:41:12,265 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0e089904-a47b-4e56-9dec-a69a1f6127de/bin-2019/utaipan/data/0da5c2251/c0b7c8ac35f14b7fbd532068d2bee526/FLAG1834107c6 [2018-12-09 19:41:12,719 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 19:41:12,719 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0e089904-a47b-4e56-9dec-a69a1f6127de/sv-benchmarks/c/loop-industry-pattern/mod3_true-unreach-call.c [2018-12-09 19:41:12,722 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0e089904-a47b-4e56-9dec-a69a1f6127de/bin-2019/utaipan/data/0da5c2251/c0b7c8ac35f14b7fbd532068d2bee526/FLAG1834107c6 [2018-12-09 19:41:13,098 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0e089904-a47b-4e56-9dec-a69a1f6127de/bin-2019/utaipan/data/0da5c2251/c0b7c8ac35f14b7fbd532068d2bee526 [2018-12-09 19:41:13,100 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 19:41:13,101 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 19:41:13,101 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 19:41:13,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 19:41:13,104 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 19:41:13,104 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:41:13" (1/1) ... [2018-12-09 19:41:13,106 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@706fcb08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:41:13, skipping insertion in model container [2018-12-09 19:41:13,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:41:13" (1/1) ... [2018-12-09 19:41:13,111 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 19:41:13,120 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 19:41:13,202 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:41:13,204 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 19:41:13,213 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:41:13,221 INFO L195 MainTranslator]: Completed translation [2018-12-09 19:41:13,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:41:13 WrapperNode [2018-12-09 19:41:13,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 19:41:13,222 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 19:41:13,222 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 19:41:13,222 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 19:41:13,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:41:13" (1/1) ... [2018-12-09 19:41:13,229 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:41:13" (1/1) ... [2018-12-09 19:41:13,233 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 19:41:13,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 19:41:13,233 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 19:41:13,233 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 19:41:13,238 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:41:13" (1/1) ... [2018-12-09 19:41:13,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:41:13" (1/1) ... [2018-12-09 19:41:13,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:41:13" (1/1) ... [2018-12-09 19:41:13,239 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:41:13" (1/1) ... [2018-12-09 19:41:13,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:41:13" (1/1) ... [2018-12-09 19:41:13,243 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:41:13" (1/1) ... [2018-12-09 19:41:13,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:41:13" (1/1) ... [2018-12-09 19:41:13,245 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 19:41:13,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 19:41:13,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 19:41:13,245 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 19:41:13,245 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:41:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0e089904-a47b-4e56-9dec-a69a1f6127de/bin-2019/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 [2018-12-09 19:41:13,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 19:41:13,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 19:41:13,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 19:41:13,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 19:41:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 19:41:13,309 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 19:41:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-09 19:41:13,309 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-09 19:41:13,400 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 19:41:13,400 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-09 19:41:13,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:41:13 BoogieIcfgContainer [2018-12-09 19:41:13,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 19:41:13,401 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 19:41:13,401 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 19:41:13,403 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 19:41:13,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:41:13" (1/3) ... [2018-12-09 19:41:13,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5333a9cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:41:13, skipping insertion in model container [2018-12-09 19:41:13,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:41:13" (2/3) ... [2018-12-09 19:41:13,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5333a9cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:41:13, skipping insertion in model container [2018-12-09 19:41:13,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:41:13" (3/3) ... [2018-12-09 19:41:13,405 INFO L112 eAbstractionObserver]: Analyzing ICFG mod3_true-unreach-call.c [2018-12-09 19:41:13,411 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 19:41:13,415 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 19:41:13,424 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 19:41:13,441 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 19:41:13,441 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 19:41:13,441 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 19:41:13,441 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 19:41:13,441 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 19:41:13,441 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 19:41:13,441 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 19:41:13,442 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 19:41:13,451 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-12-09 19:41:13,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-09 19:41:13,454 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:41:13,454 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:41:13,455 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:41:13,458 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:41:13,459 INFO L82 PathProgramCache]: Analyzing trace with hash 271538127, now seen corresponding path program 1 times [2018-12-09 19:41:13,460 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:41:13,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:41:13,487 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:41:13,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:41:13,487 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:41:13,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:41:13,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:41:13,518 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:41:13,518 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 19:41:13,518 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:41:13,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 19:41:13,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 19:41:13,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 19:41:13,529 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2018-12-09 19:41:13,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:41:13,541 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2018-12-09 19:41:13,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 19:41:13,542 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-12-09 19:41:13,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:41:13,547 INFO L225 Difference]: With dead ends: 36 [2018-12-09 19:41:13,548 INFO L226 Difference]: Without dead ends: 16 [2018-12-09 19:41:13,549 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 19:41:13,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-12-09 19:41:13,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-12-09 19:41:13,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-12-09 19:41:13,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2018-12-09 19:41:13,570 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 11 [2018-12-09 19:41:13,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:41:13,570 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2018-12-09 19:41:13,570 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 19:41:13,570 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2018-12-09 19:41:13,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-09 19:41:13,571 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:41:13,571 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:41:13,571 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:41:13,571 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:41:13,571 INFO L82 PathProgramCache]: Analyzing trace with hash 183026044, now seen corresponding path program 1 times [2018-12-09 19:41:13,572 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:41:13,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:41:13,572 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:41:13,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:41:13,572 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:41:13,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:41:13,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:41:13,626 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:41:13,626 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 19:41:13,626 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:41:13,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 19:41:13,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 19:41:13,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:41:13,627 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 3 states. [2018-12-09 19:41:13,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:41:13,641 INFO L93 Difference]: Finished difference Result 27 states and 33 transitions. [2018-12-09 19:41:13,641 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 19:41:13,641 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-12-09 19:41:13,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:41:13,642 INFO L225 Difference]: With dead ends: 27 [2018-12-09 19:41:13,642 INFO L226 Difference]: Without dead ends: 21 [2018-12-09 19:41:13,643 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:41:13,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-12-09 19:41:13,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 18. [2018-12-09 19:41:13,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-12-09 19:41:13,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2018-12-09 19:41:13,645 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 12 [2018-12-09 19:41:13,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:41:13,645 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2018-12-09 19:41:13,646 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 19:41:13,646 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2018-12-09 19:41:13,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 19:41:13,646 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:41:13,646 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:41:13,646 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:41:13,647 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:41:13,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1587594336, now seen corresponding path program 1 times [2018-12-09 19:41:13,647 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:41:13,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:41:13,647 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:41:13,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:41:13,648 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:41:13,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:41:13,747 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:41:13,747 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:41:13,747 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 19:41:13,747 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:41:13,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 19:41:13,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 19:41:13,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 19:41:13,748 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand 5 states. [2018-12-09 19:41:14,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:41:14,339 INFO L93 Difference]: Finished difference Result 32 states and 42 transitions. [2018-12-09 19:41:14,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 19:41:14,340 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-12-09 19:41:14,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:41:14,340 INFO L225 Difference]: With dead ends: 32 [2018-12-09 19:41:14,340 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 19:41:14,341 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-09 19:41:14,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 19:41:14,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 19:41:14,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 19:41:14,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 19:41:14,341 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-12-09 19:41:14,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:41:14,342 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 19:41:14,342 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 19:41:14,342 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 19:41:14,342 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 19:41:14,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 19:41:14,366 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-09 19:41:14,366 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 19:41:14,366 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 19:41:14,366 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 19:41:14,366 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 19:41:14,366 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 19:41:14,366 INFO L444 ceAbstractionStarter]: At program point L31(line 31) the Hoare annotation is: (<= main_~x~0 (let ((.cse0 (div main_~x~0 4294967296))) (+ (* 4294967296 .cse0) (* 3 (div (+ main_~x~0 (* (- 4294967296) .cse0)) 3))))) [2018-12-09 19:41:14,366 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 12 33) no Hoare annotation was computed. [2018-12-09 19:41:14,367 INFO L448 ceAbstractionStarter]: For program point L23(lines 23 26) no Hoare annotation was computed. [2018-12-09 19:41:14,367 INFO L444 ceAbstractionStarter]: At program point L23-2(lines 16 29) the Hoare annotation is: (or (<= main_~x~0 (let ((.cse0 (div main_~x~0 4294967296))) (+ (* 4294967296 .cse0) (* 3 (div (+ main_~x~0 (* (- 4294967296) .cse0)) 3))))) (and (<= (div main_~y~0 4294967296) 0) (<= 1 main_~y~0))) [2018-12-09 19:41:14,367 INFO L448 ceAbstractionStarter]: For program point L17(lines 17 28) no Hoare annotation was computed. [2018-12-09 19:41:14,367 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 12 33) no Hoare annotation was computed. [2018-12-09 19:41:14,367 INFO L448 ceAbstractionStarter]: For program point L30(lines 30 31) no Hoare annotation was computed. [2018-12-09 19:41:14,367 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 12 33) the Hoare annotation is: true [2018-12-09 19:41:14,367 INFO L448 ceAbstractionStarter]: For program point L20(lines 20 27) no Hoare annotation was computed. [2018-12-09 19:41:14,367 INFO L448 ceAbstractionStarter]: For program point L16-1(lines 16 29) no Hoare annotation was computed. [2018-12-09 19:41:14,367 INFO L448 ceAbstractionStarter]: For program point L16-3(lines 12 33) no Hoare annotation was computed. [2018-12-09 19:41:14,368 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2018-12-09 19:41:14,368 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 6 10) the Hoare annotation is: true [2018-12-09 19:41:14,368 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 6 10) no Hoare annotation was computed. [2018-12-09 19:41:14,368 INFO L448 ceAbstractionStarter]: For program point L8(line 8) no Hoare annotation was computed. [2018-12-09 19:41:14,368 INFO L448 ceAbstractionStarter]: For program point L7(lines 7 8) no Hoare annotation was computed. [2018-12-09 19:41:14,368 INFO L448 ceAbstractionStarter]: For program point L7-2(lines 6 10) no Hoare annotation was computed. [2018-12-09 19:41:14,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:41:14 BoogieIcfgContainer [2018-12-09 19:41:14,376 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 19:41:14,376 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 19:41:14,376 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 19:41:14,376 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 19:41:14,377 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:41:13" (3/4) ... [2018-12-09 19:41:14,379 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 19:41:14,383 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 19:41:14,383 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 19:41:14,383 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-12-09 19:41:14,385 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-12-09 19:41:14,385 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-09 19:41:14,386 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 19:41:14,411 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0e089904-a47b-4e56-9dec-a69a1f6127de/bin-2019/utaipan/witness.graphml [2018-12-09 19:41:14,411 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 19:41:14,412 INFO L168 Benchmark]: Toolchain (without parser) took 1311.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 949.7 MB in the beginning and 1.0 GB in the end (delta: -76.2 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2018-12-09 19:41:14,413 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:41:14,413 INFO L168 Benchmark]: CACSL2BoogieTranslator took 120.29 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:41:14,413 INFO L168 Benchmark]: Boogie Procedure Inliner took 10.83 ms. Allocated memory is still 1.0 GB. Free memory is still 939.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:41:14,414 INFO L168 Benchmark]: Boogie Preprocessor took 11.73 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 936.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:41:14,414 INFO L168 Benchmark]: RCFGBuilder took 155.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -144.4 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-12-09 19:41:14,414 INFO L168 Benchmark]: TraceAbstraction took 975.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 52.1 MB). Peak memory consumption was 52.1 MB. Max. memory is 11.5 GB. [2018-12-09 19:41:14,415 INFO L168 Benchmark]: Witness Printer took 35.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:41:14,416 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 120.29 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 10.83 ms. Allocated memory is still 1.0 GB. Free memory is still 939.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.73 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 936.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 155.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -144.4 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 975.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 52.1 MB). Peak memory consumption was 52.1 MB. Max. memory is 11.5 GB. * Witness Printer took 35.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: x <= 4294967296 * (x / 4294967296) + 3 * ((x + -4294967296 * (x / 4294967296)) / 3) || (y / 4294967296 <= 0 && 1 <= y) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 1 error locations. SAFE Result, 0.9s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 64 SDtfs, 7 SDslu, 55 SDs, 0 SdLazy, 24 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 10 PreInvPairs, 13 NumberOfFragments, 53 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 1745 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...