/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0832_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/double_req_bl_0832_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 880ea7a6e3bf15e1c28bd78f5267ea1e88339658 --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/double_req_bl_0832_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 880ea7a6e3bf15e1c28bd78f5267ea1e88339658 --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 17:54:41,935 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 17:54:41,937 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 17:54:41,950 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 17:54:41,950 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 17:54:41,952 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 17:54:41,953 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 17:54:41,955 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 17:54:41,957 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 17:54:41,958 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 17:54:41,959 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 17:54:41,959 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 17:54:41,961 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 17:54:41,962 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 17:54:41,963 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 17:54:41,964 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 17:54:41,965 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 17:54:41,967 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 17:54:41,969 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 17:54:41,971 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 17:54:41,973 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 17:54:41,974 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 17:54:41,977 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 17:54:41,977 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 17:54:41,978 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 17:54:41,979 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 17:54:41,980 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 17:54:41,981 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 17:54:41,982 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 17:54:41,984 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 17:54:41,984 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 17:54:41,985 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 17:54:41,985 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 17:54:41,986 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 17:54:41,987 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 17:54:41,988 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 17:54:41,988 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 17:54:42,011 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 17:54:42,011 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 17:54:42,012 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 17:54:42,012 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 17:54:42,014 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 17:54:42,015 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 17:54:42,015 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 17:54:42,015 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 17:54:42,016 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 17:54:42,016 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 17:54:42,016 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 17:54:42,017 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 17:54:42,017 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 17:54:42,017 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 17:54:42,017 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 17:54:42,018 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 17:54:42,018 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 17:54:42,019 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 17:54:42,019 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 17:54:42,019 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 17:54:42,019 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 17:54:42,021 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 17:54:42,021 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 17:54:42,022 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 17:54:42,022 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 17:54:42,022 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 17:54:42,023 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 17:54:42,023 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 17:54:42,023 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 17:54:42,023 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 -> 880ea7a6e3bf15e1c28bd78f5267ea1e88339658 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 17:54:42,084 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 17:54:42,101 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 17:54:42,108 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 17:54:42,110 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 17:54:42,111 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 17:54:42,112 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0832_true-unreach-call.c [2018-09-21 17:54:42,475 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c0fa71d5/82203a224751451e897aa77eb34899ef/FLAG8d63fdb6a [2018-09-21 17:54:42,699 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 17:54:42,699 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0832_true-unreach-call.c [2018-09-21 17:54:42,708 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c0fa71d5/82203a224751451e897aa77eb34899ef/FLAG8d63fdb6a [2018-09-21 17:54:42,724 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c0fa71d5/82203a224751451e897aa77eb34899ef [2018-09-21 17:54:42,728 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 17:54:42,730 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 17:54:42,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 17:54:42,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 17:54:42,739 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 17:54:42,740 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:54:42" (1/1) ... [2018-09-21 17:54:42,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f022dd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:42, skipping insertion in model container [2018-09-21 17:54:42,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:54:42" (1/1) ... [2018-09-21 17:54:42,754 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 17:54:43,013 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 17:54:43,035 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 17:54:43,075 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 17:54:43,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:43 WrapperNode [2018-09-21 17:54:43,106 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 17:54:43,106 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 17:54:43,107 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 17:54:43,107 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 17:54:43,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:43" (1/1) ... [2018-09-21 17:54:43,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:43" (1/1) ... [2018-09-21 17:54:43,154 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:43" (1/1) ... [2018-09-21 17:54:43,155 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:43" (1/1) ... [2018-09-21 17:54:43,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:43" (1/1) ... [2018-09-21 17:54:43,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:43" (1/1) ... [2018-09-21 17:54:43,195 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:43" (1/1) ... [2018-09-21 17:54:43,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 17:54:43,199 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 17:54:43,199 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 17:54:43,199 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 17:54:43,200 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:43" (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 17:54:43,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 17:54:43,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 17:54:43,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_exp [2018-09-21 17:54:43,364 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 17:54:43,365 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 17:54:43,365 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-21 17:54:43,366 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_exp [2018-09-21 17:54:43,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 17:54:43,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 17:54:43,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 17:54:43,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 17:54:43,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 17:54:43,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 17:54:43,367 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 17:54:43,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 17:54:43,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 17:54:43,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 17:54:43,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 17:54:44,262 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 17:54:44,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:54:44 BoogieIcfgContainer [2018-09-21 17:54:44,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 17:54:44,263 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 17:54:44,264 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 17:54:44,267 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 17:54:44,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 05:54:42" (1/3) ... [2018-09-21 17:54:44,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14e2b316 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 05:54:44, skipping insertion in model container [2018-09-21 17:54:44,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:43" (2/3) ... [2018-09-21 17:54:44,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14e2b316 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 05:54:44, skipping insertion in model container [2018-09-21 17:54:44,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:54:44" (3/3) ... [2018-09-21 17:54:44,271 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0832_true-unreach-call.c [2018-09-21 17:54:44,281 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 17:54:44,290 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 17:54:44,331 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 17:54:44,332 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 17:54:44,332 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 17:54:44,332 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 17:54:44,333 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 17:54:44,333 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 17:54:44,333 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 17:54:44,333 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 17:54:44,333 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 17:54:44,352 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states. [2018-09-21 17:54:44,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-21 17:54:44,364 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:54:44,365 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 17:54:44,367 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:54:44,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1409530107, now seen corresponding path program 1 times [2018-09-21 17:54:44,375 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 17:54:44,376 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 17:54:44,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 17:54:44,430 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:54:44,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 17:54:44,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:54:44,548 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 17:54:44,551 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:54:44,551 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 17:54:44,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 17:54:44,568 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 17:54:44,569 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 17:54:44,571 INFO L87 Difference]: Start difference. First operand 102 states. Second operand 2 states. [2018-09-21 17:54:44,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:54:44,595 INFO L93 Difference]: Finished difference Result 102 states and 114 transitions. [2018-09-21 17:54:44,596 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 17:54:44,597 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-09-21 17:54:44,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:54:44,611 INFO L225 Difference]: With dead ends: 102 [2018-09-21 17:54:44,611 INFO L226 Difference]: Without dead ends: 97 [2018-09-21 17:54:44,613 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 17:54:44,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2018-09-21 17:54:44,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2018-09-21 17:54:44,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-09-21 17:54:44,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 108 transitions. [2018-09-21 17:54:44,659 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 108 transitions. Word has length 19 [2018-09-21 17:54:44,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:54:44,659 INFO L480 AbstractCegarLoop]: Abstraction has 97 states and 108 transitions. [2018-09-21 17:54:44,659 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 17:54:44,659 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 108 transitions. [2018-09-21 17:54:44,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-21 17:54:44,661 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:54:44,661 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] [2018-09-21 17:54:44,661 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:54:44,662 INFO L82 PathProgramCache]: Analyzing trace with hash 887963003, now seen corresponding path program 1 times [2018-09-21 17:54:44,662 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 17:54:44,662 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 17:54:44,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 17:54:44,663 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:54:44,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 17:54:44,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 17:54:44,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 17:54:44,824 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 17:54:44,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 05:54:44 BoogieIcfgContainer [2018-09-21 17:54:44,886 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 17:54:44,887 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 17:54:44,887 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 17:54:44,888 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 17:54:44,889 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:54:44" (3/4) ... [2018-09-21 17:54:44,893 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 17:54:44,893 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 17:54:44,894 INFO L168 Benchmark]: Toolchain (without parser) took 2165.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 951.8 MB in the beginning and 1.1 GB in the end (delta: -113.1 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2018-09-21 17:54:44,897 INFO L168 Benchmark]: CDTParser took 0.22 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 17:54:44,898 INFO L168 Benchmark]: CACSL2BoogieTranslator took 374.20 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 17:54:44,900 INFO L168 Benchmark]: Boogie Preprocessor took 92.11 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 17:54:44,901 INFO L168 Benchmark]: RCFGBuilder took 1063.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -156.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2018-09-21 17:54:44,903 INFO L168 Benchmark]: TraceAbstraction took 623.27 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: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. [2018-09-21 17:54:44,905 INFO L168 Benchmark]: Witness Printer took 6.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 17:54:44,911 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 374.20 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 92.11 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 1063.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -156.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 623.27 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: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. * Witness Printer took 6.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 145]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 21, overapproximation of bitwiseAnd at line 54, overapproximation of someBinaryArithmeticDOUBLEoperation at line 71, overapproximation of someBinaryDOUBLEComparisonOperation at line 144. Possible FailurePath: [L17-L42] static const double one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+300, twom1000_exp = 9.33263618503218878990e-302, o_threshold_exp = 7.09782712893383973096e+02, u_threshold_exp = -7.45133219101941108420e+02, ln2HI_exp[2] = { 6.93147180369123816490e-01, -6.93147180369123816490e-01, }, ln2LO_exp[2] = { 1.90821492927058770002e-10, -1.90821492927058770002e-10, }, invln2_exp = 1.44269504088896338700e+00, P1_exp = 1.66666666666666019037e-01, P2_exp = -2.77777777770155933842e-03, P3_exp = 6.61375632143793436117e-05, P4_exp = -1.65339022054652515390e-06, P5_exp = 4.13813679705723846039e-08; [L17-L42] static const double one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+300, twom1000_exp = 9.33263618503218878990e-302, o_threshold_exp = 7.09782712893383973096e+02, u_threshold_exp = -7.45133219101941108420e+02, ln2HI_exp[2] = { 6.93147180369123816490e-01, -6.93147180369123816490e-01, }, ln2LO_exp[2] = { 1.90821492927058770002e-10, -1.90821492927058770002e-10, }, invln2_exp = 1.44269504088896338700e+00, P1_exp = 1.66666666666666019037e-01, P2_exp = -2.77777777770155933842e-03, P3_exp = 6.61375632143793436117e-05, P4_exp = -1.65339022054652515390e-06, P5_exp = 4.13813679705723846039e-08; [L17-L42] static const double one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+300, twom1000_exp = 9.33263618503218878990e-302, o_threshold_exp = 7.09782712893383973096e+02, u_threshold_exp = -7.45133219101941108420e+02, ln2HI_exp[2] = { 6.93147180369123816490e-01, -6.93147180369123816490e-01, }, ln2LO_exp[2] = { 1.90821492927058770002e-10, -1.90821492927058770002e-10, }, invln2_exp = 1.44269504088896338700e+00, P1_exp = 1.66666666666666019037e-01, P2_exp = -2.77777777770155933842e-03, P3_exp = 6.61375632143793436117e-05, P4_exp = -1.65339022054652515390e-06, P5_exp = 4.13813679705723846039e-08; [L17-L42] static const double one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+300, twom1000_exp = 9.33263618503218878990e-302, o_threshold_exp = 7.09782712893383973096e+02, u_threshold_exp = -7.45133219101941108420e+02, ln2HI_exp[2] = { 6.93147180369123816490e-01, -6.93147180369123816490e-01, }, ln2LO_exp[2] = { 1.90821492927058770002e-10, -1.90821492927058770002e-10, }, invln2_exp = 1.44269504088896338700e+00, P1_exp = 1.66666666666666019037e-01, P2_exp = -2.77777777770155933842e-03, P3_exp = 6.61375632143793436117e-05, P4_exp = -1.65339022054652515390e-06, P5_exp = 4.13813679705723846039e-08; [L17-L42] static const double one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+300, twom1000_exp = 9.33263618503218878990e-302, o_threshold_exp = 7.09782712893383973096e+02, u_threshold_exp = -7.45133219101941108420e+02, ln2HI_exp[2] = { 6.93147180369123816490e-01, -6.93147180369123816490e-01, }, ln2LO_exp[2] = { 1.90821492927058770002e-10, -1.90821492927058770002e-10, }, invln2_exp = 1.44269504088896338700e+00, P1_exp = 1.66666666666666019037e-01, P2_exp = -2.77777777770155933842e-03, P3_exp = 6.61375632143793436117e-05, P4_exp = -1.65339022054652515390e-06, P5_exp = 4.13813679705723846039e-08; [L17-L42] static const double one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+300, twom1000_exp = 9.33263618503218878990e-302, o_threshold_exp = 7.09782712893383973096e+02, u_threshold_exp = -7.45133219101941108420e+02, ln2HI_exp[2] = { 6.93147180369123816490e-01, -6.93147180369123816490e-01, }, ln2LO_exp[2] = { 1.90821492927058770002e-10, -1.90821492927058770002e-10, }, invln2_exp = 1.44269504088896338700e+00, P1_exp = 1.66666666666666019037e-01, P2_exp = -2.77777777770155933842e-03, P3_exp = 6.61375632143793436117e-05, P4_exp = -1.65339022054652515390e-06, P5_exp = 4.13813679705723846039e-08; [L17-L42] static const double one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+300, twom1000_exp = 9.33263618503218878990e-302, o_threshold_exp = 7.09782712893383973096e+02, u_threshold_exp = -7.45133219101941108420e+02, ln2HI_exp[2] = { 6.93147180369123816490e-01, -6.93147180369123816490e-01, }, ln2LO_exp[2] = { 1.90821492927058770002e-10, -1.90821492927058770002e-10, }, invln2_exp = 1.44269504088896338700e+00, P1_exp = 1.66666666666666019037e-01, P2_exp = -2.77777777770155933842e-03, P3_exp = 6.61375632143793436117e-05, P4_exp = -1.65339022054652515390e-06, P5_exp = 4.13813679705723846039e-08; [L17-L42] static const double one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+300, twom1000_exp = 9.33263618503218878990e-302, o_threshold_exp = 7.09782712893383973096e+02, u_threshold_exp = -7.45133219101941108420e+02, ln2HI_exp[2] = { 6.93147180369123816490e-01, -6.93147180369123816490e-01, }, ln2LO_exp[2] = { 1.90821492927058770002e-10, -1.90821492927058770002e-10, }, invln2_exp = 1.44269504088896338700e+00, P1_exp = 1.66666666666666019037e-01, P2_exp = -2.77777777770155933842e-03, P3_exp = 6.61375632143793436117e-05, P4_exp = -1.65339022054652515390e-06, P5_exp = 4.13813679705723846039e-08; [L17-L42] static const double one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+300, twom1000_exp = 9.33263618503218878990e-302, o_threshold_exp = 7.09782712893383973096e+02, u_threshold_exp = -7.45133219101941108420e+02, ln2HI_exp[2] = { 6.93147180369123816490e-01, -6.93147180369123816490e-01, }, ln2LO_exp[2] = { 1.90821492927058770002e-10, -1.90821492927058770002e-10, }, invln2_exp = 1.44269504088896338700e+00, P1_exp = 1.66666666666666019037e-01, P2_exp = -2.77777777770155933842e-03, P3_exp = 6.61375632143793436117e-05, P4_exp = -1.65339022054652515390e-06, P5_exp = 4.13813679705723846039e-08; VAL [\old(huge_exp)=10, \old(invln2_exp)=11, \old(o_threshold_exp)=19, \old(one_exp)=29, \old(P1_exp)=14, \old(P2_exp)=17, \old(P3_exp)=23, \old(P4_exp)=26, \old(P5_exp)=24, \old(twom1000_exp)=18, \old(u_threshold_exp)=21, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L137] double x = __VERIFIER_nondet_double(); [L139] COND TRUE x == 0.0 || x == -0.0 VAL [huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=12] [L141] CALL, EXPR __ieee754_exp(x) VAL [\old(x)=12, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L45] double y, hi, lo, c, t; [L46] __int32_t k = 0, xsb; [L46] __int32_t k = 0, xsb; [L47] __uint32_t hx; VAL [\old(x)=12, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, k=0, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=12] [L50] FCALL ieee_double_shape_type gh_u; VAL [\old(x)=12, gh_u={27:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, k=0, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=12] [L51] FCALL gh_u.value = (x) VAL [\old(x)=12, gh_u={27:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, k=0, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=12] [L52] EXPR, FCALL gh_u.parts.msw VAL [\old(x)=12, gh_u={27:0}, gh_u.parts.msw=22, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, k=0, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=12] [L52] (hx) = gh_u.parts.msw VAL [\old(x)=12, gh_u={27:0}, gh_u.parts.msw=22, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=22, invln2_exp=1442695040888963387/1000000000000000000, k=0, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=12] [L52] FCALL (hx) = gh_u.parts.msw VAL [(hx) = gh_u.parts.msw=25, \old(x)=12, gh_u={27:0}, gh_u.parts.msw=22, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=22, invln2_exp=1442695040888963387/1000000000000000000, k=0, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=12] [L53] COND FALSE !(0) VAL [\old(x)=12, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=22, invln2_exp=1442695040888963387/1000000000000000000, k=0, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=12] [L54] xsb = (hx >> 31) & 1 [L55] hx &= 0x7fffffff VAL [\old(x)=12, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, k=0, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=12, xsb=-1] [L57] COND TRUE hx >= 0x40862E42 VAL [\old(x)=12, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=1082535490, invln2_exp=1442695040888963387/1000000000000000000, k=0, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=12, xsb=-1] [L58] COND FALSE !(hx >= 0x7ff00000) VAL [\old(x)=12, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=1082535490, invln2_exp=1442695040888963387/1000000000000000000, k=0, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=12, xsb=-1] [L70] COND TRUE x > o_threshold_exp [L71] RET return huge_exp * huge_exp; VAL [\old(x)=12, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=1082535490, invln2_exp=1442695040888963387/1000000000000000000, k=0, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=12, xsb=-1] [L141] EXPR __ieee754_exp(x) VAL [__ieee754_exp(x)=13, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=12] [L141] double res = __ieee754_exp(x); [L144] COND TRUE res != 1.0 VAL [huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, res=13, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=12] [L145] __VERIFIER_error() VAL [huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, res=13, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=12] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 102 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 114 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 324 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5eb3fea [2018-09-21 17:54:47,369 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 17:54:47,371 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 17:54:47,386 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 17:54:47,386 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 17:54:47,388 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 17:54:47,389 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 17:54:47,391 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 17:54:47,392 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 17:54:47,393 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 17:54:47,394 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 17:54:47,394 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 17:54:47,395 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 17:54:47,396 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 17:54:47,397 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 17:54:47,398 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 17:54:47,399 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 17:54:47,401 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 17:54:47,403 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 17:54:47,405 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 17:54:47,406 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 17:54:47,408 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 17:54:47,410 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 17:54:47,411 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 17:54:47,411 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 17:54:47,412 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 17:54:47,414 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 17:54:47,418 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 17:54:47,419 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 17:54:47,420 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 17:54:47,423 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 17:54:47,424 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 17:54:47,424 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 17:54:47,424 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 17:54:47,425 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 17:54:47,429 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 17:54:47,429 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 17:54:47,446 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 17:54:47,447 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 17:54:47,447 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 17:54:47,448 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 17:54:47,448 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 17:54:47,448 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 17:54:47,449 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 17:54:47,449 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 17:54:47,449 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 17:54:47,449 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 17:54:47,450 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 17:54:47,451 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 17:54:47,451 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 17:54:47,451 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 17:54:47,451 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 17:54:47,451 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 17:54:47,451 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 17:54:47,452 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 17:54:47,452 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 17:54:47,452 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 17:54:47,452 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 17:54:47,454 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 17:54:47,454 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 17:54:47,454 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 17:54:47,454 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 17:54:47,454 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 17:54:47,455 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 17:54:47,455 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 17:54:47,455 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 17:54:47,455 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 17:54:47,456 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 17:54:47,456 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 -> 880ea7a6e3bf15e1c28bd78f5267ea1e88339658 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 17:54:47,534 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 17:54:47,555 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 17:54:47,562 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 17:54:47,563 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 17:54:47,564 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 17:54:47,565 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0832_true-unreach-call.c [2018-09-21 17:54:47,926 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33da8107c/a6a342fa78384b679f17c55649207da9/FLAG780bdad00 [2018-09-21 17:54:48,101 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 17:54:48,102 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0832_true-unreach-call.c [2018-09-21 17:54:48,110 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33da8107c/a6a342fa78384b679f17c55649207da9/FLAG780bdad00 [2018-09-21 17:54:48,126 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33da8107c/a6a342fa78384b679f17c55649207da9 [2018-09-21 17:54:48,130 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 17:54:48,133 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 17:54:48,135 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 17:54:48,135 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 17:54:48,142 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 17:54:48,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:54:48" (1/1) ... [2018-09-21 17:54:48,146 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3394b855 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:48, skipping insertion in model container [2018-09-21 17:54:48,146 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:54:48" (1/1) ... [2018-09-21 17:54:48,159 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 17:54:48,436 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 17:54:48,462 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 17:54:48,532 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 17:54:48,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:48 WrapperNode [2018-09-21 17:54:48,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 17:54:48,623 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 17:54:48,623 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 17:54:48,623 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 17:54:48,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:48" (1/1) ... [2018-09-21 17:54:48,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:48" (1/1) ... [2018-09-21 17:54:48,679 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:48" (1/1) ... [2018-09-21 17:54:48,679 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:48" (1/1) ... [2018-09-21 17:54:48,705 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:48" (1/1) ... [2018-09-21 17:54:48,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:48" (1/1) ... [2018-09-21 17:54:48,727 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:48" (1/1) ... [2018-09-21 17:54:48,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 17:54:48,739 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 17:54:48,739 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 17:54:48,739 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 17:54:48,740 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:48" (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 17:54:48,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 17:54:48,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 17:54:48,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_exp [2018-09-21 17:54:48,923 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 17:54:48,923 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 17:54:48,923 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-21 17:54:48,923 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_exp [2018-09-21 17:54:48,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 17:54:48,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-21 17:54:48,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 17:54:48,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 17:54:48,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 17:54:48,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-21 17:54:48,925 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 17:54:48,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 17:54:48,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 17:54:48,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-21 17:54:48,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 17:54:49,212 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:54:49,258 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:54:49,368 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:54:49,397 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:55:01,204 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:55:01,216 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:55:01,250 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:55:01,392 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:55:01,413 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:55:01,452 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:55:04,308 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 17:55:04,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:55:04 BoogieIcfgContainer [2018-09-21 17:55:04,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 17:55:04,310 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 17:55:04,310 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 17:55:04,313 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 17:55:04,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 05:54:48" (1/3) ... [2018-09-21 17:55:04,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40c32cd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 05:55:04, skipping insertion in model container [2018-09-21 17:55:04,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:48" (2/3) ... [2018-09-21 17:55:04,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40c32cd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 05:55:04, skipping insertion in model container [2018-09-21 17:55:04,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:55:04" (3/3) ... [2018-09-21 17:55:04,317 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0832_true-unreach-call.c [2018-09-21 17:55:04,327 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 17:55:04,336 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 17:55:04,382 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 17:55:04,383 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 17:55:04,383 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 17:55:04,383 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 17:55:04,383 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 17:55:04,384 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 17:55:04,384 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 17:55:04,384 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 17:55:04,384 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 17:55:04,403 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states. [2018-09-21 17:55:04,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-21 17:55:04,415 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:55:04,417 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 17:55:04,420 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:55:04,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1409530107, now seen corresponding path program 1 times [2018-09-21 17:55:04,429 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:55:04,430 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) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-21 17:55:04,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:55:04,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:55:04,788 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:55:04,808 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 17:55:04,808 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:55:04,825 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:55:04,825 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 17:55:04,829 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 17:55:04,842 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 17:55:04,843 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 17:55:04,846 INFO L87 Difference]: Start difference. First operand 102 states. Second operand 2 states. [2018-09-21 17:55:04,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:55:04,869 INFO L93 Difference]: Finished difference Result 102 states and 114 transitions. [2018-09-21 17:55:04,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 17:55:04,871 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-09-21 17:55:04,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:55:04,885 INFO L225 Difference]: With dead ends: 102 [2018-09-21 17:55:04,885 INFO L226 Difference]: Without dead ends: 97 [2018-09-21 17:55:04,887 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 17:55:04,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2018-09-21 17:55:04,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2018-09-21 17:55:04,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-09-21 17:55:04,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 108 transitions. [2018-09-21 17:55:04,938 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 108 transitions. Word has length 19 [2018-09-21 17:55:04,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:55:04,939 INFO L480 AbstractCegarLoop]: Abstraction has 97 states and 108 transitions. [2018-09-21 17:55:04,939 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 17:55:04,939 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 108 transitions. [2018-09-21 17:55:04,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-21 17:55:04,941 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:55:04,941 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] [2018-09-21 17:55:04,942 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:55:04,942 INFO L82 PathProgramCache]: Analyzing trace with hash 887963003, now seen corresponding path program 1 times [2018-09-21 17:55:04,943 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:55:04,945 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 17:55:04,957 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:55:05,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:55:05,312 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:55:05,451 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 14 treesize of output 11 [2018-09-21 17:55:05,458 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 11 treesize of output 10 [2018-09-21 17:55:05,459 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:55:05,469 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:55:05,558 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 17:55:05,559 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 17:55:05,672 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 20 treesize of output 16 [2018-09-21 17:55:05,691 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 16 treesize of output 4 [2018-09-21 17:55:05,691 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:55:05,715 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:55:05,729 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 17:55:05,730 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 17:55:06,384 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 17:55:06,384 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:55:06,402 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:55:06,402 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 17:55:06,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 17:55:06,407 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 17:55:06,407 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 17:55:06,409 INFO L87 Difference]: Start difference. First operand 97 states and 108 transitions. Second operand 9 states. [2018-09-21 17:55:26,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:55:26,795 INFO L93 Difference]: Finished difference Result 106 states and 116 transitions. [2018-09-21 17:55:26,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-21 17:55:26,796 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2018-09-21 17:55:26,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:55:26,800 INFO L225 Difference]: With dead ends: 106 [2018-09-21 17:55:26,800 INFO L226 Difference]: Without dead ends: 91 [2018-09-21 17:55:26,801 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2018-09-21 17:55:26,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2018-09-21 17:55:26,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 86. [2018-09-21 17:55:26,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-09-21 17:55:26,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 92 transitions. [2018-09-21 17:55:26,814 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 92 transitions. Word has length 28 [2018-09-21 17:55:26,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:55:26,814 INFO L480 AbstractCegarLoop]: Abstraction has 86 states and 92 transitions. [2018-09-21 17:55:26,814 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 17:55:26,815 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 92 transitions. [2018-09-21 17:55:26,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-09-21 17:55:26,816 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:55:26,816 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] [2018-09-21 17:55:26,816 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:55:26,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1939365783, now seen corresponding path program 1 times [2018-09-21 17:55:26,817 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:55:26,817 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 17:55:26,822 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:55:27,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:55:27,056 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:55:30,131 WARN L178 SmtUtils]: Spent 1.35 s on a formula simplification that was a NOOP. DAG size: 10 [2018-09-21 17:55:30,971 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-09-21 17:55:32,150 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-09-21 17:55:32,201 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 17:55:32,201 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:55:32,218 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:55:32,218 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-21 17:55:32,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-21 17:55:32,219 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-21 17:55:32,220 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-09-21 17:55:32,220 INFO L87 Difference]: Start difference. First operand 86 states and 92 transitions. Second operand 8 states. [2018-09-21 17:55:49,825 WARN L178 SmtUtils]: Spent 1.24 s on a formula simplification that was a NOOP. DAG size: 12 [2018-09-21 17:56:02,654 WARN L178 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-21 17:56:04,882 WARN L178 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-21 17:56:05,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:56:05,022 INFO L93 Difference]: Finished difference Result 93 states and 98 transitions. [2018-09-21 17:56:05,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-21 17:56:05,024 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 29 [2018-09-21 17:56:05,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:56:05,026 INFO L225 Difference]: With dead ends: 93 [2018-09-21 17:56:05,026 INFO L226 Difference]: Without dead ends: 89 [2018-09-21 17:56:05,027 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-09-21 17:56:05,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-09-21 17:56:05,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 86. [2018-09-21 17:56:05,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-09-21 17:56:05,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2018-09-21 17:56:05,037 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 29 [2018-09-21 17:56:05,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:56:05,037 INFO L480 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2018-09-21 17:56:05,037 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-21 17:56:05,038 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2018-09-21 17:56:05,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-21 17:56:05,039 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:56:05,039 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] [2018-09-21 17:56:05,039 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:56:05,040 INFO L82 PathProgramCache]: Analyzing trace with hash -712495516, now seen corresponding path program 1 times [2018-09-21 17:56:05,040 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:56:05,041 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 17:56:05,049 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:56:08,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:56:08,355 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:56:08,450 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 14 treesize of output 11 [2018-09-21 17:56:08,464 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 11 treesize of output 10 [2018-09-21 17:56:08,464 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:56:08,471 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:56:08,497 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 17:56:08,498 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 17:56:08,568 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 20 treesize of output 16 [2018-09-21 17:56:08,574 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 16 treesize of output 4 [2018-09-21 17:56:08,575 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:56:08,580 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:56:08,595 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 17:56:08,595 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 17:56:08,825 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 17:56:08,826 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:56:08,883 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:56:08,883 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 17:56:08,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 17:56:08,884 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 17:56:08,884 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 17:56:08,885 INFO L87 Difference]: Start difference. First operand 86 states and 91 transitions. Second operand 9 states. [2018-09-21 17:56:31,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:56:31,512 INFO L93 Difference]: Finished difference Result 140 states and 146 transitions. [2018-09-21 17:56:31,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-21 17:56:31,515 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2018-09-21 17:56:31,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:56:31,517 INFO L225 Difference]: With dead ends: 140 [2018-09-21 17:56:31,517 INFO L226 Difference]: Without dead ends: 87 [2018-09-21 17:56:31,517 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2018-09-21 17:56:31,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-09-21 17:56:31,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2018-09-21 17:56:31,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-09-21 17:56:31,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 88 transitions. [2018-09-21 17:56:31,528 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 88 transitions. Word has length 30 [2018-09-21 17:56:31,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:56:31,528 INFO L480 AbstractCegarLoop]: Abstraction has 85 states and 88 transitions. [2018-09-21 17:56:31,528 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 17:56:31,528 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 88 transitions. [2018-09-21 17:56:31,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-21 17:56:31,530 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:56:31,530 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] [2018-09-21 17:56:31,531 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:56:31,531 INFO L82 PathProgramCache]: Analyzing trace with hash -2114321293, now seen corresponding path program 1 times [2018-09-21 17:56:31,531 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:56:31,531 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 17:56:31,538 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:56:34,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:56:35,052 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:56:35,222 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 14 [2018-09-21 17:56:38,684 WARN L178 SmtUtils]: Spent 1.38 s on a formula simplification that was a NOOP. DAG size: 14 [2018-09-21 17:56:38,738 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 17:56:38,738 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:56:38,793 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:56:38,794 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-21 17:56:38,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-21 17:56:38,794 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-21 17:56:38,795 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-21 17:56:38,795 INFO L87 Difference]: Start difference. First operand 85 states and 88 transitions. Second operand 6 states. [2018-09-21 17:56:50,512 WARN L178 SmtUtils]: Spent 1.67 s on a formula simplification that was a NOOP. DAG size: 16 [2018-09-21 17:57:00,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:57:00,943 INFO L93 Difference]: Finished difference Result 89 states and 92 transitions. [2018-09-21 17:57:00,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-21 17:57:00,946 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2018-09-21 17:57:00,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:57:00,947 INFO L225 Difference]: With dead ends: 89 [2018-09-21 17:57:00,951 INFO L226 Difference]: Without dead ends: 87 [2018-09-21 17:57:00,952 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-09-21 17:57:00,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-09-21 17:57:00,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2018-09-21 17:57:00,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-09-21 17:57:00,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 90 transitions. [2018-09-21 17:57:00,960 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 90 transitions. Word has length 31 [2018-09-21 17:57:00,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:57:00,960 INFO L480 AbstractCegarLoop]: Abstraction has 87 states and 90 transitions. [2018-09-21 17:57:00,961 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-21 17:57:00,961 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 90 transitions. [2018-09-21 17:57:00,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-21 17:57:00,962 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:57:00,963 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] [2018-09-21 17:57:00,963 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:57:00,964 INFO L82 PathProgramCache]: Analyzing trace with hash 916155774, now seen corresponding path program 1 times [2018-09-21 17:57:00,964 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:57:00,964 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-09-21 17:57:00,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:57:05,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:57:05,414 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:57:05,505 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 14 treesize of output 11 [2018-09-21 17:57:05,513 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 11 treesize of output 10 [2018-09-21 17:57:05,514 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:57:05,521 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:57:05,538 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 17:57:05,539 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 17:57:05,606 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 20 treesize of output 16 [2018-09-21 17:57:05,615 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 16 treesize of output 4 [2018-09-21 17:57:05,616 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:57:05,622 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:57:05,639 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 17:57:05,640 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 17:57:05,924 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 17:57:05,924 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:57:05,993 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:57:05,993 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 17:57:05,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 17:57:05,994 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 17:57:05,994 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 17:57:05,995 INFO L87 Difference]: Start difference. First operand 87 states and 90 transitions. Second operand 9 states. [2018-09-21 17:57:27,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:57:27,386 INFO L93 Difference]: Finished difference Result 136 states and 139 transitions. [2018-09-21 17:57:27,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-21 17:57:27,388 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2018-09-21 17:57:27,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:57:27,389 INFO L225 Difference]: With dead ends: 136 [2018-09-21 17:57:27,389 INFO L226 Difference]: Without dead ends: 79 [2018-09-21 17:57:27,391 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2018-09-21 17:57:27,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-09-21 17:57:27,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2018-09-21 17:57:27,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-09-21 17:57:27,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 79 transitions. [2018-09-21 17:57:27,398 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 79 transitions. Word has length 31 [2018-09-21 17:57:27,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:57:27,398 INFO L480 AbstractCegarLoop]: Abstraction has 79 states and 79 transitions. [2018-09-21 17:57:27,399 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 17:57:27,399 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 79 transitions. [2018-09-21 17:57:27,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-09-21 17:57:27,400 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:57:27,400 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, 1] [2018-09-21 17:57:27,406 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:57:27,407 INFO L82 PathProgramCache]: Analyzing trace with hash 745135799, now seen corresponding path program 1 times [2018-09-21 17:57:27,407 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:57:27,407 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-09-21 17:57:27,416 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-09-21 17:57:30,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:57:31,158 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:57:31,215 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 17:57:31,215 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:57:31,292 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:57:31,292 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-21 17:57:31,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-21 17:57:31,293 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-21 17:57:31,293 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-21 17:57:31,295 INFO L87 Difference]: Start difference. First operand 79 states and 79 transitions. Second operand 3 states. [2018-09-21 17:57:31,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:57:31,296 INFO L93 Difference]: Finished difference Result 26 states and 25 transitions. [2018-09-21 17:57:31,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-21 17:57:31,296 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2018-09-21 17:57:31,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:57:31,297 INFO L225 Difference]: With dead ends: 26 [2018-09-21 17:57:31,297 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 17:57:31,297 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-21 17:57:31,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 17:57:31,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 17:57:31,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 17:57:31,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 17:57:31,298 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 55 [2018-09-21 17:57:31,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:57:31,298 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 17:57:31,298 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-21 17:57:31,298 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 17:57:31,299 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 17:57:31,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 05:57:31 BoogieIcfgContainer [2018-09-21 17:57:31,306 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 17:57:31,307 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 17:57:31,307 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 17:57:31,307 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 17:57:31,309 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:55:04" (3/4) ... [2018-09-21 17:57:31,314 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 17:57:31,322 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 17:57:31,322 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_exp [2018-09-21 17:57:31,323 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 17:57:31,337 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2018-09-21 17:57:31,337 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-09-21 17:57:31,337 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-09-21 17:57:31,420 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 17:57:31,421 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 17:57:31,422 INFO L168 Benchmark]: Toolchain (without parser) took 163291.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 215.0 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -194.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2018-09-21 17:57:31,423 INFO L168 Benchmark]: CDTParser took 0.22 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 17:57:31,424 INFO L168 Benchmark]: CACSL2BoogieTranslator took 487.29 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 935.8 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2018-09-21 17:57:31,424 INFO L168 Benchmark]: Boogie Preprocessor took 115.65 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 17:57:31,424 INFO L168 Benchmark]: RCFGBuilder took 15570.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -150.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2018-09-21 17:57:31,426 INFO L168 Benchmark]: TraceAbstraction took 146996.18 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 73.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -77.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 17:57:31,427 INFO L168 Benchmark]: Witness Printer took 114.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. [2018-09-21 17:57:31,429 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 487.29 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 935.8 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 115.65 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 15570.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -150.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 146996.18 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 73.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -77.3 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 114.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 145]: 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 4 procedures, 102 locations, 1 error locations. SAFE Result, 146.9s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 119.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 571 SDtfs, 346 SDslu, 2117 SDs, 0 SdLazy, 518 SolverSat, 22 SolverUnsat, 27 SolverUnknown, 0 SolverNotchecked, 98.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 242 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 20.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred 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, 7 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 14.3s SatisfiabilityAnalysisTime, 12.4s InterpolantComputationTime, 223 NumberOfCodeBlocks, 223 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 216 ConstructedInterpolants, 46 QuantifiedInterpolants, 45254 SizeOfPredicates, 29 NumberOfNonLiveVariables, 762 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...