./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loop-floats-scientific-comp/loop2_false-unreach-call.c.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_28e5f8d5-be21-4156-9914-c849ed16eb4c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_28e5f8d5-be21-4156-9914-c849ed16eb4c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_28e5f8d5-be21-4156-9914-c849ed16eb4c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_28e5f8d5-be21-4156-9914-c849ed16eb4c/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-floats-scientific-comp/loop2_false-unreach-call.c.i -s /tmp/vcloud-vcloud-master/worker/working_dir_28e5f8d5-be21-4156-9914-c849ed16eb4c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_28e5f8d5-be21-4156-9914-c849ed16eb4c/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 ac1c2f023046690eb69a7c8f4224e12d57f24d83 ................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_28e5f8d5-be21-4156-9914-c849ed16eb4c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_28e5f8d5-be21-4156-9914-c849ed16eb4c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_28e5f8d5-be21-4156-9914-c849ed16eb4c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_28e5f8d5-be21-4156-9914-c849ed16eb4c/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-floats-scientific-comp/loop2_false-unreach-call.c.i -s /tmp/vcloud-vcloud-master/worker/working_dir_28e5f8d5-be21-4156-9914-c849ed16eb4c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_28e5f8d5-be21-4156-9914-c849ed16eb4c/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 ac1c2f023046690eb69a7c8f4224e12d57f24d83 ..................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 17:10:47,321 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:10:47,322 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:10:47,330 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:10:47,331 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:10:47,331 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:10:47,332 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:10:47,333 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:10:47,334 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:10:47,335 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:10:47,335 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:10:47,335 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:10:47,336 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:10:47,337 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:10:47,337 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:10:47,338 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:10:47,338 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:10:47,340 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:10:47,341 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:10:47,342 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:10:47,343 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:10:47,344 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:10:47,345 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:10:47,345 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:10:47,346 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:10:47,346 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:10:47,347 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:10:47,347 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:10:47,348 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:10:47,349 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:10:47,349 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:10:47,349 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:10:47,350 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:10:47,350 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:10:47,350 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:10:47,351 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:10:47,351 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_28e5f8d5-be21-4156-9914-c849ed16eb4c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 17:10:47,361 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:10:47,361 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:10:47,362 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 17:10:47,362 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 17:10:47,362 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 17:10:47,362 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 17:10:47,363 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 17:10:47,363 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 17:10:47,363 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 17:10:47,363 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 17:10:47,363 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 17:10:47,363 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 17:10:47,363 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 17:10:47,364 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:10:47,364 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 17:10:47,364 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 17:10:47,364 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 17:10:47,364 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:10:47,365 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 17:10:47,365 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 17:10:47,365 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 17:10:47,365 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 17:10:47,365 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:10:47,365 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:10:47,365 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 17:10:47,366 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:10:47,366 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 17:10:47,366 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 17:10:47,366 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 17:10:47,366 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 17:10:47,366 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:10:47,367 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 17:10:47,367 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 17:10:47,367 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 17:10:47,367 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 17:10:47,367 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 17:10:47,367 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 17:10:47,367 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_28e5f8d5-be21-4156-9914-c849ed16eb4c/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 -> ac1c2f023046690eb69a7c8f4224e12d57f24d83 [2018-11-18 17:10:47,390 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:10:47,398 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:10:47,400 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:10:47,401 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:10:47,401 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:10:47,401 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_28e5f8d5-be21-4156-9914-c849ed16eb4c/bin-2019/utaipan/../../sv-benchmarks/c/loop-floats-scientific-comp/loop2_false-unreach-call.c.i [2018-11-18 17:10:47,433 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_28e5f8d5-be21-4156-9914-c849ed16eb4c/bin-2019/utaipan/data/fbff4c9c3/616e27a47a2945db8e67ab91e29c1e52/FLAG29fe2e92b [2018-11-18 17:10:47,817 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:10:47,817 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_28e5f8d5-be21-4156-9914-c849ed16eb4c/sv-benchmarks/c/loop-floats-scientific-comp/loop2_false-unreach-call.c.i [2018-11-18 17:10:47,821 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_28e5f8d5-be21-4156-9914-c849ed16eb4c/bin-2019/utaipan/data/fbff4c9c3/616e27a47a2945db8e67ab91e29c1e52/FLAG29fe2e92b [2018-11-18 17:10:47,830 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_28e5f8d5-be21-4156-9914-c849ed16eb4c/bin-2019/utaipan/data/fbff4c9c3/616e27a47a2945db8e67ab91e29c1e52 [2018-11-18 17:10:47,832 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:10:47,832 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 17:10:47,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:10:47,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:10:47,836 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:10:47,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:10:47" (1/1) ... [2018-11-18 17:10:47,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@411459c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:10:47, skipping insertion in model container [2018-11-18 17:10:47,838 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:10:47" (1/1) ... [2018-11-18 17:10:47,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:10:47,855 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:10:47,960 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:10:47,962 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:10:47,972 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:10:47,980 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:10:47,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:10:47 WrapperNode [2018-11-18 17:10:47,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:10:47,981 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 17:10:47,981 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 17:10:47,981 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 17:10:47,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:10:47" (1/1) ... [2018-11-18 17:10:47,989 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:10:47" (1/1) ... [2018-11-18 17:10:47,993 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 17:10:47,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:10:47,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:10:47,994 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:10:47,999 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:10:47" (1/1) ... [2018-11-18 17:10:47,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:10:47" (1/1) ... [2018-11-18 17:10:47,999 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:10:47" (1/1) ... [2018-11-18 17:10:48,000 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:10:47" (1/1) ... [2018-11-18 17:10:48,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:10:47" (1/1) ... [2018-11-18 17:10:48,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:10:47" (1/1) ... [2018-11-18 17:10:48,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:10:47" (1/1) ... [2018-11-18 17:10:48,009 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:10:48,009 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:10:48,009 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:10:48,009 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:10:48,010 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:10:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_28e5f8d5-be21-4156-9914-c849ed16eb4c/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 [2018-11-18 17:10:48,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 17:10:48,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 17:10:48,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:10:48,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:10:48,083 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 17:10:48,084 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 17:10:48,084 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 17:10:48,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 17:10:48,195 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:10:48,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:10:48 BoogieIcfgContainer [2018-11-18 17:10:48,195 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:10:48,196 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 17:10:48,196 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 17:10:48,198 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 17:10:48,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 05:10:47" (1/3) ... [2018-11-18 17:10:48,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@602cddec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:10:48, skipping insertion in model container [2018-11-18 17:10:48,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:10:47" (2/3) ... [2018-11-18 17:10:48,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@602cddec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:10:48, skipping insertion in model container [2018-11-18 17:10:48,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:10:48" (3/3) ... [2018-11-18 17:10:48,201 INFO L112 eAbstractionObserver]: Analyzing ICFG loop2_false-unreach-call.c.i [2018-11-18 17:10:48,208 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 17:10:48,213 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 17:10:48,227 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 17:10:48,252 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 17:10:48,252 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 17:10:48,252 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 17:10:48,253 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 17:10:48,253 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 17:10:48,253 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 17:10:48,253 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 17:10:48,253 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 17:10:48,263 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-11-18 17:10:48,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 17:10:48,267 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:10:48,267 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:10:48,268 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:10:48,272 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:10:48,272 INFO L82 PathProgramCache]: Analyzing trace with hash 857481337, now seen corresponding path program 1 times [2018-11-18 17:10:48,273 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:10:48,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:10:48,310 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:10:48,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:10:48,310 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:10:48,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:10:48,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:10:48,351 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:10:48,351 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 17:10:48,351 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:10:48,355 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 17:10:48,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 17:10:48,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 17:10:48,368 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2018-11-18 17:10:48,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:10:48,380 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2018-11-18 17:10:48,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 17:10:48,380 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-11-18 17:10:48,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:10:48,385 INFO L225 Difference]: With dead ends: 35 [2018-11-18 17:10:48,385 INFO L226 Difference]: Without dead ends: 16 [2018-11-18 17:10:48,387 INFO L604 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 [2018-11-18 17:10:48,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-18 17:10:48,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-18 17:10:48,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-18 17:10:48,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2018-11-18 17:10:48,409 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 11 [2018-11-18 17:10:48,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:10:48,409 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2018-11-18 17:10:48,409 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 17:10:48,409 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2018-11-18 17:10:48,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 17:10:48,410 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:10:48,410 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:10:48,410 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:10:48,410 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:10:48,410 INFO L82 PathProgramCache]: Analyzing trace with hash 1154070091, now seen corresponding path program 1 times [2018-11-18 17:10:48,411 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:10:48,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:10:48,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:10:48,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:10:48,412 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:10:48,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:10:48,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:10:48,481 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:10:48,481 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 17:10:48,481 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:10:48,482 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 17:10:48,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 17:10:48,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 17:10:48,483 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 3 states. [2018-11-18 17:10:48,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:10:48,508 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2018-11-18 17:10:48,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 17:10:48,508 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-11-18 17:10:48,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:10:48,509 INFO L225 Difference]: With dead ends: 30 [2018-11-18 17:10:48,509 INFO L226 Difference]: Without dead ends: 20 [2018-11-18 17:10:48,510 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 17:10:48,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-18 17:10:48,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2018-11-18 17:10:48,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-18 17:10:48,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2018-11-18 17:10:48,513 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 15 [2018-11-18 17:10:48,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:10:48,513 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2018-11-18 17:10:48,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 17:10:48,513 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2018-11-18 17:10:48,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 17:10:48,514 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:10:48,514 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:10:48,514 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:10:48,514 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:10:48,514 INFO L82 PathProgramCache]: Analyzing trace with hash -1365889843, now seen corresponding path program 1 times [2018-11-18 17:10:48,515 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:10:48,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:10:48,515 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:10:48,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:10:48,516 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:10:48,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:10:48,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:10:48,544 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 17:10:48,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 05:10:48 BoogieIcfgContainer [2018-11-18 17:10:48,562 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 17:10:48,563 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 17:10:48,563 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 17:10:48,563 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 17:10:48,563 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:10:48" (3/4) ... [2018-11-18 17:10:48,565 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 17:10:48,566 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 17:10:48,566 INFO L168 Benchmark]: Toolchain (without parser) took 734.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -128.9 MB). Peak memory consumption was 11.1 MB. Max. memory is 11.5 GB. [2018-11-18 17:10:48,567 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:10:48,568 INFO L168 Benchmark]: CACSL2BoogieTranslator took 147.72 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:10:48,568 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.14 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:10:48,568 INFO L168 Benchmark]: Boogie Preprocessor took 15.43 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:10:48,569 INFO L168 Benchmark]: RCFGBuilder took 186.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -179.9 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-18 17:10:48,569 INFO L168 Benchmark]: TraceAbstraction took 366.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2018-11-18 17:10:48,569 INFO L168 Benchmark]: Witness Printer took 3.04 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:10:48,572 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 147.72 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 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 12.14 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.43 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 186.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -179.9 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 366.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * Witness Printer took 3.04 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 7]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 17, overapproximation of someBinaryArithmeticFLOAToperation at line 30. Possible FailurePath: [L9] float pi = 3.14159 ; VAL [\old(pi)=2, pi=314159/100000] [L15] float x = __VERIFIER_nondet_float() ; [L16] float octant = pi/3 ; [L18] float oddExp = x ; [L19] float evenExp = 1.0 ; [L20] float term = x ; [L21] unsigned int count = 2 ; [L22] int multFactor = 0 ; [L23] int temp ; VAL [count=2, evenExp=1, multFactor=0, oddExp=3, pi=314159/100000, term=3, x=3] [L25] COND TRUE 1 [L27] term = term * (x/count) VAL [count=2, evenExp=1, multFactor=0, oddExp=3, pi=314159/100000, x=3] [L28] COND FALSE, EXPR !((count>>1 % 2 == 0) ? 1 : -1) VAL [(count>>1 % 2 == 0) ? 1 : -1=-1, count=2, evenExp=1, multFactor=0, oddExp=3, pi=314159/100000, x=3] [L28] multFactor = (count>>1 % 2 == 0) ? 1 : -1 [L30] evenExp = evenExp + multFactor*term [L32] count++ [L34] term = term * (x/count) [L36] oddExp = oddExp + multFactor*term [L38] count++ [L40] temp = __VERIFIER_nondet_int() [L41] COND TRUE temp == 0 VAL [count=4, multFactor=-1, pi=314159/100000, temp=0, x=3] [L44] CALL __VERIFIER_assert( oddExp >= evenExp ) VAL [\old(cond)=0, pi=314159/100000] [L7] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, pi=314159/100000] [L7] __VERIFIER_error() VAL [\old(cond)=0, cond=0, pi=314159/100000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 39 SDtfs, 1 SDslu, 13 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 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, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 716 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5842f4b [2018-11-18 17:10:49,966 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:10:49,967 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:10:49,974 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:10:49,975 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:10:49,975 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:10:49,976 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:10:49,977 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:10:49,978 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:10:49,979 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:10:49,979 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:10:49,980 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:10:49,980 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:10:49,981 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:10:49,982 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:10:49,983 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:10:49,983 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:10:49,984 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:10:49,986 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:10:49,987 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:10:49,988 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:10:49,989 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:10:49,991 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:10:49,991 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:10:49,991 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:10:49,992 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:10:49,992 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:10:49,993 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:10:49,993 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:10:49,994 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:10:49,995 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:10:49,995 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:10:49,995 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:10:49,996 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:10:49,996 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:10:49,997 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:10:49,997 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_28e5f8d5-be21-4156-9914-c849ed16eb4c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 17:10:50,007 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:10:50,007 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:10:50,008 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 17:10:50,008 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 17:10:50,008 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 17:10:50,008 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 17:10:50,008 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 17:10:50,009 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 17:10:50,009 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 17:10:50,009 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 17:10:50,009 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:10:50,009 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 17:10:50,009 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 17:10:50,010 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:10:50,010 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 17:10:50,010 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 17:10:50,010 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 17:10:50,010 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 17:10:50,010 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 17:10:50,010 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 17:10:50,011 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:10:50,011 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:10:50,011 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 17:10:50,011 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:10:50,011 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 17:10:50,011 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 17:10:50,011 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 17:10:50,012 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 17:10:50,012 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:10:50,012 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 17:10:50,012 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 17:10:50,012 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 17:10:50,012 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 17:10:50,012 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 17:10:50,012 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 17:10:50,013 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_28e5f8d5-be21-4156-9914-c849ed16eb4c/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 -> ac1c2f023046690eb69a7c8f4224e12d57f24d83 [2018-11-18 17:10:50,039 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:10:50,046 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:10:50,048 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:10:50,049 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:10:50,049 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:10:50,050 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_28e5f8d5-be21-4156-9914-c849ed16eb4c/bin-2019/utaipan/../../sv-benchmarks/c/loop-floats-scientific-comp/loop2_false-unreach-call.c.i [2018-11-18 17:10:50,083 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_28e5f8d5-be21-4156-9914-c849ed16eb4c/bin-2019/utaipan/data/1f827d523/6140c09c09614e39a248c5b9c6267b50/FLAG88894265d [2018-11-18 17:10:50,467 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:10:50,467 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_28e5f8d5-be21-4156-9914-c849ed16eb4c/sv-benchmarks/c/loop-floats-scientific-comp/loop2_false-unreach-call.c.i [2018-11-18 17:10:50,470 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_28e5f8d5-be21-4156-9914-c849ed16eb4c/bin-2019/utaipan/data/1f827d523/6140c09c09614e39a248c5b9c6267b50/FLAG88894265d [2018-11-18 17:10:50,478 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_28e5f8d5-be21-4156-9914-c849ed16eb4c/bin-2019/utaipan/data/1f827d523/6140c09c09614e39a248c5b9c6267b50 [2018-11-18 17:10:50,480 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:10:50,481 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 17:10:50,482 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:10:50,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:10:50,485 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:10:50,485 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:10:50" (1/1) ... [2018-11-18 17:10:50,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@119b503f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:10:50, skipping insertion in model container [2018-11-18 17:10:50,487 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:10:50" (1/1) ... [2018-11-18 17:10:50,495 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:10:50,514 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:10:50,637 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:10:50,640 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:10:50,654 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:10:50,666 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:10:50,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:10:50 WrapperNode [2018-11-18 17:10:50,666 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:10:50,667 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 17:10:50,667 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 17:10:50,667 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 17:10:50,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:10:50" (1/1) ... [2018-11-18 17:10:50,676 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:10:50" (1/1) ... [2018-11-18 17:10:50,682 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 17:10:50,682 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:10:50,683 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:10:50,683 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:10:50,690 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:10:50" (1/1) ... [2018-11-18 17:10:50,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:10:50" (1/1) ... [2018-11-18 17:10:50,691 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:10:50" (1/1) ... [2018-11-18 17:10:50,691 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:10:50" (1/1) ... [2018-11-18 17:10:50,695 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:10:50" (1/1) ... [2018-11-18 17:10:50,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:10:50" (1/1) ... [2018-11-18 17:10:50,699 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:10:50" (1/1) ... [2018-11-18 17:10:50,701 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:10:50,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:10:50,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:10:50,701 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:10:50,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:10:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_28e5f8d5-be21-4156-9914-c849ed16eb4c/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 [2018-11-18 17:10:50,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 17:10:50,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 17:10:50,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:10:50,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:10:50,771 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 17:10:50,771 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 17:10:50,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 17:10:50,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 17:10:55,443 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:10:55,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:10:55 BoogieIcfgContainer [2018-11-18 17:10:55,444 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:10:55,444 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 17:10:55,444 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 17:10:55,446 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 17:10:55,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 05:10:50" (1/3) ... [2018-11-18 17:10:55,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73985f5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:10:55, skipping insertion in model container [2018-11-18 17:10:55,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:10:50" (2/3) ... [2018-11-18 17:10:55,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73985f5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:10:55, skipping insertion in model container [2018-11-18 17:10:55,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:10:55" (3/3) ... [2018-11-18 17:10:55,448 INFO L112 eAbstractionObserver]: Analyzing ICFG loop2_false-unreach-call.c.i [2018-11-18 17:10:55,454 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 17:10:55,458 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 17:10:55,467 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 17:10:55,484 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 17:10:55,484 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 17:10:55,484 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 17:10:55,485 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 17:10:55,485 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 17:10:55,485 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 17:10:55,485 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 17:10:55,485 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 17:10:55,485 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 17:10:55,494 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-11-18 17:10:55,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 17:10:55,497 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:10:55,498 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:10:55,499 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:10:55,502 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:10:55,502 INFO L82 PathProgramCache]: Analyzing trace with hash 857481337, now seen corresponding path program 1 times [2018-11-18 17:10:55,505 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 17:10:55,505 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_28e5f8d5-be21-4156-9914-c849ed16eb4c/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-18 17:10:55,509 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:10:55,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:10:55,571 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:10:55,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:10:55,581 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 17:10:55,590 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:10:55,590 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 17:10:55,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 17:10:55,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 17:10:55,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 17:10:55,603 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2018-11-18 17:10:55,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:10:55,615 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2018-11-18 17:10:55,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 17:10:55,616 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-11-18 17:10:55,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:10:55,622 INFO L225 Difference]: With dead ends: 35 [2018-11-18 17:10:55,623 INFO L226 Difference]: Without dead ends: 16 [2018-11-18 17:10:55,625 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 17:10:55,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-18 17:10:55,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-18 17:10:55,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-18 17:10:55,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2018-11-18 17:10:55,647 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 11 [2018-11-18 17:10:55,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:10:55,648 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2018-11-18 17:10:55,648 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 17:10:55,648 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2018-11-18 17:10:55,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 17:10:55,648 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:10:55,649 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:10:55,649 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:10:55,649 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:10:55,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1154070091, now seen corresponding path program 1 times [2018-11-18 17:10:55,650 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 17:10:55,650 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_28e5f8d5-be21-4156-9914-c849ed16eb4c/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-18 17:10:55,661 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:10:56,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:10:56,310 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:10:56,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:10:56,324 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 17:10:56,336 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:10:56,336 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 17:10:56,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 17:10:56,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 17:10:56,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 17:10:56,338 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 3 states. [2018-11-18 17:11:00,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:11:00,257 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2018-11-18 17:11:00,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 17:11:00,257 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-11-18 17:11:00,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:11:00,258 INFO L225 Difference]: With dead ends: 30 [2018-11-18 17:11:00,258 INFO L226 Difference]: Without dead ends: 20 [2018-11-18 17:11:00,259 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 17:11:00,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-18 17:11:00,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2018-11-18 17:11:00,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-18 17:11:00,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2018-11-18 17:11:00,262 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 15 [2018-11-18 17:11:00,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:11:00,262 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2018-11-18 17:11:00,262 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 17:11:00,262 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2018-11-18 17:11:00,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 17:11:00,263 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:11:00,263 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:11:00,263 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:11:00,263 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:11:00,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1365889843, now seen corresponding path program 1 times [2018-11-18 17:11:00,263 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 17:11:00,263 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_28e5f8d5-be21-4156-9914-c849ed16eb4c/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-18 17:11:00,266 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:11:00,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:11:01,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:11:01,620 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 17:11:01,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 05:11:01 BoogieIcfgContainer [2018-11-18 17:11:01,643 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 17:11:01,643 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 17:11:01,643 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 17:11:01,643 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 17:11:01,643 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:10:55" (3/4) ... [2018-11-18 17:11:01,645 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 17:11:01,673 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_28e5f8d5-be21-4156-9914-c849ed16eb4c/bin-2019/utaipan/witness.graphml [2018-11-18 17:11:01,674 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 17:11:01,674 INFO L168 Benchmark]: Toolchain (without parser) took 11193.79 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 949.7 MB in the beginning and 1.0 GB in the end (delta: -85.0 MB). Peak memory consumption was 34.6 MB. Max. memory is 11.5 GB. [2018-11-18 17:11:01,675 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:11:01,675 INFO L168 Benchmark]: CACSL2BoogieTranslator took 185.04 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. [2018-11-18 17:11:01,676 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.37 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:11:01,676 INFO L168 Benchmark]: Boogie Preprocessor took 18.39 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:11:01,676 INFO L168 Benchmark]: RCFGBuilder took 4742.76 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -155.0 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2018-11-18 17:11:01,676 INFO L168 Benchmark]: TraceAbstraction took 6198.38 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: 47.1 MB). Peak memory consumption was 47.1 MB. Max. memory is 11.5 GB. [2018-11-18 17:11:01,676 INFO L168 Benchmark]: Witness Printer took 30.77 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-18 17:11:01,678 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 185.04 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 15.37 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.39 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 4742.76 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -155.0 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6198.38 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: 47.1 MB). Peak memory consumption was 47.1 MB. Max. memory is 11.5 GB. * Witness Printer took 30.77 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 7]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L9] float pi = 3.14159 ; VAL [\old(pi)=0.000000000000000000000000000000000000000000002802596928649634, pi=3.141590118408203] [L15] float x = __VERIFIER_nondet_float() ; [L16] float octant = pi/3 ; [L18] float oddExp = x ; [L19] float evenExp = 1.0 ; [L20] float term = x ; [L21] unsigned int count = 2 ; [L22] int multFactor = 0 ; [L23] int temp ; VAL [count=2, evenExp=1.0, multFactor=0, octant=1.0471967458724976, oddExp=0.000000000000000000000000000000000000000000001401298464324817, pi=3.141590118408203, term=0.000000000000000000000000000000000000000000001401298464324817, x=0.000000000000000000000000000000000000000000001401298464324817] [L25] COND TRUE 1 [L27] term = term * (x/count) VAL [count=2, evenExp=1.0, multFactor=0, octant=1.0471967458724976, oddExp=0.000000000000000000000000000000000000000000001401298464324817, pi=3.141590118408203, term=0.0, x=0.000000000000000000000000000000000000000000001401298464324817] [L28] COND FALSE, EXPR !((count>>1 % 2 == 0) ? 1 : -1) VAL [(count>>1 % 2 == 0) ? 1 : -1=-1, count=2, evenExp=1.0, multFactor=0, octant=1.0471967458724976, oddExp=0.000000000000000000000000000000000000000000001401298464324817, pi=3.141590118408203, term=0.0, x=0.000000000000000000000000000000000000000000001401298464324817] [L28] multFactor = (count>>1 % 2 == 0) ? 1 : -1 [L30] evenExp = evenExp + multFactor*term [L32] count++ [L34] term = term * (x/count) [L36] oddExp = oddExp + multFactor*term [L38] count++ [L40] temp = __VERIFIER_nondet_int() [L41] COND TRUE temp == 0 VAL [count=4, evenExp=1.0, multFactor=4294967295, octant=1.0471967458724976, oddExp=0.000000000000000000000000000000000000000000001401298464324817, pi=3.141590118408203, temp=0, term=0.0, x=0.000000000000000000000000000000000000000000001401298464324817] [L44] CALL __VERIFIER_assert( oddExp >= evenExp ) VAL [\old(cond)=0, pi=3.141590118408203] [L7] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, pi=3.141590118408203] [L7] __VERIFIER_error() VAL [\old(cond)=0, cond=0, pi=3.141590118408203] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 1 error locations. UNSAFE Result, 6.1s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 3.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 38 SDtfs, 1 SDslu, 12 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 3.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 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, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 464 SizeOfPredicates, 1 NumberOfNonLiveVariables, 62 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...