/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1130b_true-unreach-call.c --full-output --architecture 32bit --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5eb3fea6 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1130b_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bcbee6ed75bef52b13066d34c45df2688a1a6e18 --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false ................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1130b_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bcbee6ed75bef52b13066d34c45df2688a1a6e18 --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:39:07,209 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:39:07,212 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:39:07,229 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:39:07,229 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:39:07,231 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:39:07,232 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:39:07,234 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:39:07,235 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:39:07,236 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:39:07,237 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:39:07,237 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:39:07,238 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:39:07,239 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:39:07,240 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:39:07,241 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:39:07,242 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:39:07,244 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:39:07,246 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:39:07,247 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:39:07,248 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:39:07,249 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:39:07,252 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:39:07,252 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:39:07,252 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:39:07,253 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:39:07,254 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:39:07,255 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:39:07,256 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:39:07,257 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:39:07,258 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:39:07,258 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:39:07,258 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:39:07,259 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:39:07,260 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:39:07,261 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:39:07,261 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:39:07,290 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:39:07,291 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:39:07,292 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:39:07,292 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:39:07,293 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:39:07,294 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:39:07,295 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:39:07,295 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:39:07,295 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:39:07,295 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:39:07,296 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:39:07,296 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:39:07,296 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:39:07,297 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:39:07,297 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:39:07,298 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:39:07,298 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:39:07,298 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:39:07,298 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:39:07,298 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:39:07,299 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:39:07,299 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:39:07,299 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:39:07,299 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:39:07,299 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:39:07,299 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:39:07,300 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:39:07,300 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:39:07,300 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:39:07,300 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> Automizer 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 -> bcbee6ed75bef52b13066d34c45df2688a1a6e18 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:39:07,371 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:39:07,387 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:39:07,391 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:39:07,393 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:39:07,393 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:39:07,394 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1130b_true-unreach-call.c [2018-09-21 18:39:07,775 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b9189fb2/9dd61b880e5d47d781ec6b53bf55fca6/FLAG55c51dc84 [2018-09-21 18:39:07,969 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:39:07,970 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1130b_true-unreach-call.c [2018-09-21 18:39:07,980 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b9189fb2/9dd61b880e5d47d781ec6b53bf55fca6/FLAG55c51dc84 [2018-09-21 18:39:07,997 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b9189fb2/9dd61b880e5d47d781ec6b53bf55fca6 [2018-09-21 18:39:08,001 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:39:08,004 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:39:08,006 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:39:08,006 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:39:08,013 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:39:08,014 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:39:07" (1/1) ... [2018-09-21 18:39:08,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e222f9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:08, skipping insertion in model container [2018-09-21 18:39:08,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:39:07" (1/1) ... [2018-09-21 18:39:08,030 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:39:08,360 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:39:08,388 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:39:08,417 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:39:08,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:08 WrapperNode [2018-09-21 18:39:08,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:39:08,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:39:08,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:39:08,447 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:39:08,468 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:08" (1/1) ... [2018-09-21 18:39:08,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:08" (1/1) ... [2018-09-21 18:39:08,486 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:08" (1/1) ... [2018-09-21 18:39:08,487 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:08" (1/1) ... [2018-09-21 18:39:08,514 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:08" (1/1) ... [2018-09-21 18:39:08,530 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:08" (1/1) ... [2018-09-21 18:39:08,535 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:08" (1/1) ... [2018-09-21 18:39:08,544 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:39:08,545 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:39:08,545 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:39:08,545 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:39:08,546 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-09-21 18:39:08,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:39:08,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:39:08,708 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_float [2018-09-21 18:39:08,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-09-21 18:39:08,708 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:39:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:39:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:39:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_float [2018-09-21 18:39:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:39:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:39:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:39:08,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:39:08,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:39:08,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:39:08,710 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-09-21 18:39:08,710 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:39:08,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:39:08,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:39:08,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:39:08,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:39:09,656 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:39:09,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:39:09 BoogieIcfgContainer [2018-09-21 18:39:09,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:39:09,658 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:39:09,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:39:09,662 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:39:09,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:39:07" (1/3) ... [2018-09-21 18:39:09,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69f1e71e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:39:09, skipping insertion in model container [2018-09-21 18:39:09,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:08" (2/3) ... [2018-09-21 18:39:09,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69f1e71e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:39:09, skipping insertion in model container [2018-09-21 18:39:09,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:39:09" (3/3) ... [2018-09-21 18:39:09,667 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1130b_true-unreach-call.c [2018-09-21 18:39:09,680 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:39:09,690 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:39:09,738 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:39:09,739 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:39:09,739 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:39:09,739 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:39:09,739 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:39:09,739 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:39:09,740 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:39:09,740 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:39:09,741 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:39:09,762 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states. [2018-09-21 18:39:09,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-21 18:39:09,776 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:39:09,780 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:39:09,785 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:39:09,790 INFO L82 PathProgramCache]: Analyzing trace with hash -111589793, now seen corresponding path program 1 times [2018-09-21 18:39:09,792 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:39:09,793 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:39:09,849 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:39:09,849 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:39:09,849 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:39:09,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:39:09,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:39:09,948 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:39:09,948 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:39:09,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:39:09,969 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:39:09,972 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:39:09,975 INFO L87 Difference]: Start difference. First operand 105 states. Second operand 2 states. [2018-09-21 18:39:10,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:39:10,003 INFO L93 Difference]: Finished difference Result 105 states and 122 transitions. [2018-09-21 18:39:10,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:39:10,004 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-09-21 18:39:10,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:39:10,019 INFO L225 Difference]: With dead ends: 105 [2018-09-21 18:39:10,019 INFO L226 Difference]: Without dead ends: 100 [2018-09-21 18:39:10,021 INFO L606 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 [2018-09-21 18:39:10,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-09-21 18:39:10,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2018-09-21 18:39:10,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-09-21 18:39:10,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 116 transitions. [2018-09-21 18:39:10,069 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 116 transitions. Word has length 19 [2018-09-21 18:39:10,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:39:10,070 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 116 transitions. [2018-09-21 18:39:10,070 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:39:10,070 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 116 transitions. [2018-09-21 18:39:10,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-09-21 18:39:10,072 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:39:10,072 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:39:10,072 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:39:10,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1075096475, now seen corresponding path program 1 times [2018-09-21 18:39:10,073 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:39:10,073 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:39:10,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:39:10,074 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:39:10,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:39:10,130 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createLAEquality(EqualityProxy.java:91) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createCCEquality(EqualityProxy.java:112) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.mbtc(LinArSolve.java:2063) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.computeConflictClause(LinArSolve.java:618) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.checkConsistency(DPLLEngine.java:1027) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.solve(DPLLEngine.java:1171) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol$CheckType$1.check(SMTInterpol.java:114) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSatAssuming(SMTInterpol.java:502) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSat(SMTInterpol.java:455) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:293) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.(TraceCheck.java:214) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:183) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:430) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:375) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:313) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-09-21 18:39:10,134 INFO L168 Benchmark]: Toolchain (without parser) took 2132.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -108.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2018-09-21 18:39:10,137 INFO L168 Benchmark]: CDTParser took 0.19 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. [2018-09-21 18:39:10,137 INFO L168 Benchmark]: CACSL2BoogieTranslator took 441.13 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:39:10,138 INFO L168 Benchmark]: Boogie Preprocessor took 97.18 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:39:10,139 INFO L168 Benchmark]: RCFGBuilder took 1111.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -152.3 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:39:10,140 INFO L168 Benchmark]: TraceAbstraction took 475.21 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: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2018-09-21 18:39:10,145 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 441.13 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 97.18 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1111.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -152.3 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 475.21 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: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createLAEquality(EqualityProxy.java:91) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:39:12,637 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:39:12,640 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:39:12,653 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:39:12,653 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:39:12,655 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:39:12,656 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:39:12,658 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:39:12,659 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:39:12,660 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:39:12,661 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:39:12,662 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:39:12,663 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:39:12,664 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:39:12,665 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:39:12,666 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:39:12,667 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:39:12,669 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:39:12,671 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:39:12,673 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:39:12,674 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:39:12,675 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:39:12,678 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:39:12,678 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:39:12,678 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:39:12,679 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:39:12,680 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:39:12,682 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:39:12,682 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:39:12,684 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:39:12,684 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:39:12,685 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:39:12,685 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:39:12,685 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:39:12,687 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:39:12,688 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:39:12,688 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:39:12,709 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:39:12,709 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:39:12,710 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:39:12,711 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:39:12,712 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:39:12,712 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:39:12,712 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:39:12,712 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:39:12,712 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:39:12,713 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:39:12,713 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:39:12,713 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:39:12,713 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:39:12,713 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:39:12,715 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:39:12,715 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:39:12,715 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:39:12,715 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:39:12,715 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:39:12,716 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:39:12,716 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:39:12,716 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:39:12,717 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:39:12,717 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:39:12,717 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:39:12,717 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:39:12,717 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:39:12,718 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:39:12,718 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:39:12,718 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:39:12,718 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:39:12,718 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> Automizer 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 -> bcbee6ed75bef52b13066d34c45df2688a1a6e18 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:39:12,772 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:39:12,793 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:39:12,800 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:39:12,802 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:39:12,803 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:39:12,806 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1130b_true-unreach-call.c [2018-09-21 18:39:13,167 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/423665d8c/6b1382d8f80d41aa87fd9af1f0096d27/FLAGa6117e7f2 [2018-09-21 18:39:13,394 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:39:13,398 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1130b_true-unreach-call.c [2018-09-21 18:39:13,410 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/423665d8c/6b1382d8f80d41aa87fd9af1f0096d27/FLAGa6117e7f2 [2018-09-21 18:39:13,427 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/423665d8c/6b1382d8f80d41aa87fd9af1f0096d27 [2018-09-21 18:39:13,433 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:39:13,437 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:39:13,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:39:13,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:39:13,447 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:39:13,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:39:13" (1/1) ... [2018-09-21 18:39:13,452 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37c3ce02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:13, skipping insertion in model container [2018-09-21 18:39:13,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:39:13" (1/1) ... [2018-09-21 18:39:13,465 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:39:13,755 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:39:13,789 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:39:13,852 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:39:13,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:13 WrapperNode [2018-09-21 18:39:13,925 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:39:13,926 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:39:13,926 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:39:13,926 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:39:13,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:13" (1/1) ... [2018-09-21 18:39:13,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:13" (1/1) ... [2018-09-21 18:39:13,965 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:13" (1/1) ... [2018-09-21 18:39:13,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:13" (1/1) ... [2018-09-21 18:39:13,988 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:13" (1/1) ... [2018-09-21 18:39:13,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:13" (1/1) ... [2018-09-21 18:39:14,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:13" (1/1) ... [2018-09-21 18:39:14,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:39:14,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:39:14,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:39:14,007 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:39:14,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-09-21 18:39:14,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:39:14,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:39:14,157 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_float [2018-09-21 18:39:14,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-09-21 18:39:14,157 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:39:14,158 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:39:14,158 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:39:14,158 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_float [2018-09-21 18:39:14,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:39:14,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-21 18:39:14,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:39:14,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:39:14,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:39:14,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-21 18:39:14,160 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-09-21 18:39:14,160 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:39:14,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:39:14,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:39:14,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-21 18:39:14,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:39:14,649 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:39:14,663 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:39:14,701 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:39:14,717 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:39:15,783 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:39:15,790 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:39:15,853 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:39:15,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:39:15 BoogieIcfgContainer [2018-09-21 18:39:15,854 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:39:15,856 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:39:15,861 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:39:15,869 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:39:15,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:39:13" (1/3) ... [2018-09-21 18:39:15,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bf3118e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:39:15, skipping insertion in model container [2018-09-21 18:39:15,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:13" (2/3) ... [2018-09-21 18:39:15,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bf3118e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:39:15, skipping insertion in model container [2018-09-21 18:39:15,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:39:15" (3/3) ... [2018-09-21 18:39:15,883 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1130b_true-unreach-call.c [2018-09-21 18:39:15,896 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:39:15,906 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:39:15,955 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:39:15,955 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:39:15,955 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:39:15,956 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:39:15,956 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:39:15,956 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:39:15,956 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:39:15,956 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:39:15,956 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:39:15,975 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states. [2018-09-21 18:39:15,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-21 18:39:15,988 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:39:15,989 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:39:15,992 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:39:16,002 INFO L82 PathProgramCache]: Analyzing trace with hash -111589793, now seen corresponding path program 1 times [2018-09-21 18:39:16,008 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:39:16,009 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-09-21 18:39:16,023 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-21 18:39:16,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:39:16,327 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:39:16,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:39:16,345 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:39:16,365 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:39:16,366 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:39:16,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:39:16,387 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:39:16,388 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:39:16,391 INFO L87 Difference]: Start difference. First operand 105 states. Second operand 2 states. [2018-09-21 18:39:16,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:39:16,417 INFO L93 Difference]: Finished difference Result 105 states and 122 transitions. [2018-09-21 18:39:16,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:39:16,419 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-09-21 18:39:16,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:39:16,436 INFO L225 Difference]: With dead ends: 105 [2018-09-21 18:39:16,438 INFO L226 Difference]: Without dead ends: 100 [2018-09-21 18:39:16,441 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:39:16,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-09-21 18:39:16,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2018-09-21 18:39:16,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-09-21 18:39:16,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 116 transitions. [2018-09-21 18:39:16,497 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 116 transitions. Word has length 19 [2018-09-21 18:39:16,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:39:16,498 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 116 transitions. [2018-09-21 18:39:16,498 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:39:16,498 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 116 transitions. [2018-09-21 18:39:16,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-09-21 18:39:16,500 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:39:16,500 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:39:16,500 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:39:16,501 INFO L82 PathProgramCache]: Analyzing trace with hash 1075096475, now seen corresponding path program 1 times [2018-09-21 18:39:16,502 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:39:16,502 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-09-21 18:39:16,509 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:39:16,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:39:16,832 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:39:16,969 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:39:16,979 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:39:16,980 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:39:16,986 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:17,017 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:17,018 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:25 [2018-09-21 18:39:17,203 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:39:17,215 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:39:17,215 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:39:17,227 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:17,259 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:17,260 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:13 [2018-09-21 18:39:17,417 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:39:17,422 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:39:17,422 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:39:17,452 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:17,560 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:17,562 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:31 [2018-09-21 18:39:17,717 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:39:17,725 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:39:17,726 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:39:17,730 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:17,759 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:17,760 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:19 [2018-09-21 18:39:18,442 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 39 [2018-09-21 18:39:18,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:39:18,474 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:39:18,492 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:39:18,492 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-21 18:39:18,494 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-21 18:39:18,498 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-21 18:39:18,501 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2018-09-21 18:39:18,502 INFO L87 Difference]: Start difference. First operand 100 states and 116 transitions. Second operand 13 states. [2018-09-21 18:39:19,091 WARN L178 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-21 18:39:21,923 WARN L178 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2018-09-21 18:39:23,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:39:23,131 INFO L93 Difference]: Finished difference Result 106 states and 121 transitions. [2018-09-21 18:39:23,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-21 18:39:23,132 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 37 [2018-09-21 18:39:23,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:39:23,136 INFO L225 Difference]: With dead ends: 106 [2018-09-21 18:39:23,136 INFO L226 Difference]: Without dead ends: 104 [2018-09-21 18:39:23,138 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=104, Invalid=496, Unknown=0, NotChecked=0, Total=600 [2018-09-21 18:39:23,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-09-21 18:39:23,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 100. [2018-09-21 18:39:23,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-09-21 18:39:23,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 115 transitions. [2018-09-21 18:39:23,152 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 115 transitions. Word has length 37 [2018-09-21 18:39:23,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:39:23,152 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 115 transitions. [2018-09-21 18:39:23,152 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-21 18:39:23,152 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 115 transitions. [2018-09-21 18:39:23,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-09-21 18:39:23,155 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:39:23,155 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:39:23,155 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:39:23,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1695287177, now seen corresponding path program 1 times [2018-09-21 18:39:23,156 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:39:23,157 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-09-21 18:39:23,170 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:39:23,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:39:23,234 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:39:23,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:39:23,351 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:39:23,363 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:39:23,363 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-21 18:39:23,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-21 18:39:23,364 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-21 18:39:23,364 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-09-21 18:39:23,365 INFO L87 Difference]: Start difference. First operand 100 states and 115 transitions. Second operand 7 states. [2018-09-21 18:39:23,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:39:23,726 INFO L93 Difference]: Finished difference Result 106 states and 121 transitions. [2018-09-21 18:39:23,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-21 18:39:23,727 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2018-09-21 18:39:23,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:39:23,730 INFO L225 Difference]: With dead ends: 106 [2018-09-21 18:39:23,730 INFO L226 Difference]: Without dead ends: 106 [2018-09-21 18:39:23,731 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-09-21 18:39:23,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-09-21 18:39:23,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 104. [2018-09-21 18:39:23,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2018-09-21 18:39:23,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 119 transitions. [2018-09-21 18:39:23,743 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 119 transitions. Word has length 38 [2018-09-21 18:39:23,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:39:23,744 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 119 transitions. [2018-09-21 18:39:23,744 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-21 18:39:23,744 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 119 transitions. [2018-09-21 18:39:23,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-09-21 18:39:23,747 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:39:23,747 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:39:23,747 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:39:23,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1872180255, now seen corresponding path program 1 times [2018-09-21 18:39:23,748 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:39:23,748 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-21 18:39:23,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:39:23,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:39:23,822 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:39:23,851 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:39:23,856 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:39:23,857 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:39:23,864 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:23,876 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:23,877 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:39:23,907 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:39:23,915 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:39:23,915 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:39:23,919 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:23,925 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:23,925 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:39:24,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:39:24,295 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:39:24,305 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:39:24,306 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-21 18:39:24,306 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-21 18:39:24,306 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-21 18:39:24,306 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-09-21 18:39:24,307 INFO L87 Difference]: Start difference. First operand 104 states and 119 transitions. Second operand 10 states. [2018-09-21 18:39:25,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:39:25,989 INFO L93 Difference]: Finished difference Result 106 states and 117 transitions. [2018-09-21 18:39:25,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-21 18:39:25,990 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 39 [2018-09-21 18:39:25,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:39:25,991 INFO L225 Difference]: With dead ends: 106 [2018-09-21 18:39:25,992 INFO L226 Difference]: Without dead ends: 55 [2018-09-21 18:39:25,992 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2018-09-21 18:39:25,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-09-21 18:39:25,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2018-09-21 18:39:25,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-09-21 18:39:25,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 54 transitions. [2018-09-21 18:39:25,999 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 54 transitions. Word has length 39 [2018-09-21 18:39:25,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:39:25,999 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 54 transitions. [2018-09-21 18:39:26,000 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-21 18:39:26,000 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 54 transitions. [2018-09-21 18:39:26,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-09-21 18:39:26,002 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:39:26,002 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:39:26,002 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:39:26,003 INFO L82 PathProgramCache]: Analyzing trace with hash 225221188, now seen corresponding path program 1 times [2018-09-21 18:39:26,003 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:39:26,003 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-21 18:39:26,009 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:39:26,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:39:26,091 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:39:26,228 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:39:26,233 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:39:26,234 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:39:26,239 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:26,250 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:26,251 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:39:26,303 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:39:26,310 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:39:26,311 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:39:26,317 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:26,320 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:26,321 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:39:26,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:39:26,553 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:39:26,567 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:39:26,568 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-21 18:39:26,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-21 18:39:26,569 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-21 18:39:26,570 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2018-09-21 18:39:26,570 INFO L87 Difference]: Start difference. First operand 55 states and 54 transitions. Second operand 14 states. [2018-09-21 18:39:27,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:39:27,550 INFO L93 Difference]: Finished difference Result 53 states and 52 transitions. [2018-09-21 18:39:27,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-21 18:39:27,551 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 54 [2018-09-21 18:39:27,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:39:27,553 INFO L225 Difference]: With dead ends: 53 [2018-09-21 18:39:27,553 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:39:27,554 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=81, Invalid=471, Unknown=0, NotChecked=0, Total=552 [2018-09-21 18:39:27,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:39:27,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:39:27,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:39:27,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:39:27,555 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2018-09-21 18:39:27,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:39:27,555 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:39:27,555 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-21 18:39:27,555 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:39:27,557 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:39:27,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:39:27 BoogieIcfgContainer [2018-09-21 18:39:27,563 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:39:27,564 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:39:27,564 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:39:27,564 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:39:27,565 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:39:15" (3/4) ... [2018-09-21 18:39:27,570 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:39:27,576 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:39:27,577 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:39:27,577 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure fmod_float [2018-09-21 18:39:27,577 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-09-21 18:39:27,585 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2018-09-21 18:39:27,586 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-09-21 18:39:27,586 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-09-21 18:39:27,587 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-21 18:39:27,691 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:39:27,693 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:39:27,695 INFO L168 Benchmark]: Toolchain (without parser) took 14261.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 203.9 MB). Free memory was 951.8 MB in the beginning and 1.1 GB in the end (delta: -168.0 MB). Peak memory consumption was 35.9 MB. Max. memory is 11.5 GB. [2018-09-21 18:39:27,696 INFO L168 Benchmark]: CDTParser took 0.25 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. [2018-09-21 18:39:27,696 INFO L168 Benchmark]: CACSL2BoogieTranslator took 487.01 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:39:27,696 INFO L168 Benchmark]: Boogie Preprocessor took 79.60 ms. Allocated memory is still 1.0 GB. Free memory is still 935.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:39:27,696 INFO L168 Benchmark]: RCFGBuilder took 1848.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -157.6 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:39:27,697 INFO L168 Benchmark]: TraceAbstraction took 11707.03 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 63.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -26.5 MB). Peak memory consumption was 36.9 MB. Max. memory is 11.5 GB. [2018-09-21 18:39:27,697 INFO L168 Benchmark]: Witness Printer took 129.51 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: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. [2018-09-21 18:39:27,699 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 487.01 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 79.60 ms. Allocated memory is still 1.0 GB. Free memory is still 935.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1848.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -157.6 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 11707.03 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 63.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -26.5 MB). Peak memory consumption was 36.9 MB. Max. memory is 11.5 GB. * Witness Printer took 129.51 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: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 135]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 105 locations, 1 error locations. SAFE Result, 11.6s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 7.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 464 SDtfs, 334 SDslu, 2183 SDs, 0 SdLazy, 661 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 216 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred 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, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 187 NumberOfCodeBlocks, 187 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 182 ConstructedInterpolants, 10 QuantifiedInterpolants, 49620 SizeOfPredicates, 37 NumberOfNonLiveVariables, 428 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...