/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1091_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 40ef5092 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_1091_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 84dba58cac25505e0eb3c404a47a071a268de901 ......................................................................................................................................................................................................................................................................................................... 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_1091_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 84dba58cac25505e0eb3c404a47a071a268de901 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-40ef509 [2018-09-20 15:03:14,823 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:03:14,825 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:03:14,838 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:03:14,838 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:03:14,839 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:03:14,841 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:03:14,843 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:03:14,845 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:03:14,846 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:03:14,847 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:03:14,848 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:03:14,849 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:03:14,850 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:03:14,851 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:03:14,852 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:03:14,853 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:03:14,855 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:03:14,858 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:03:14,859 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:03:14,861 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:03:14,862 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:03:14,865 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:03:14,865 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:03:14,866 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:03:14,867 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:03:14,868 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:03:14,869 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:03:14,870 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:03:14,872 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:03:14,872 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:03:14,873 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:03:14,873 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:03:14,874 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:03:14,875 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:03:14,876 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:03:14,877 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 15:03:14,893 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:03:14,893 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:03:14,895 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:03:14,895 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:03:14,896 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:03:14,896 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:03:14,896 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:03:14,897 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:03:14,897 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:03:14,897 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 15:03:14,898 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:03:14,898 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:03:14,898 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:03:14,898 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:03:14,898 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:03:14,899 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:03:14,899 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:03:14,899 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:03:14,900 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:03:14,901 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:03:14,901 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:03:14,901 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:03:14,901 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:03:14,901 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:03:14,902 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:03:14,902 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:03:14,903 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 15:03:14,903 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:03:14,903 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 15:03:14,903 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 -> 84dba58cac25505e0eb3c404a47a071a268de901 [2018-09-20 15:03:14,963 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:03:14,982 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:03:14,988 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:03:14,989 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:03:14,990 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:03:14,990 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1091_true-unreach-call.c [2018-09-20 15:03:15,356 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b9c6ac8f/7c47474f19054accb043769f387210ec/FLAG913dd6876 [2018-09-20 15:03:15,503 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:03:15,504 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1091_true-unreach-call.c [2018-09-20 15:03:15,513 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b9c6ac8f/7c47474f19054accb043769f387210ec/FLAG913dd6876 [2018-09-20 15:03:15,529 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b9c6ac8f/7c47474f19054accb043769f387210ec [2018-09-20 15:03:15,534 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:03:15,537 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:03:15,538 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:03:15,539 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:03:15,548 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:03:15,549 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:03:15" (1/1) ... [2018-09-20 15:03:15,552 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3caad4dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:15, skipping insertion in model container [2018-09-20 15:03:15,552 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:03:15" (1/1) ... [2018-09-20 15:03:15,566 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:03:15,848 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:03:15,869 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:03:15,899 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:03:15,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:15 WrapperNode [2018-09-20 15:03:15,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:03:15,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:03:15,971 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:03:15,972 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:03:15,991 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:15" (1/1) ... [2018-09-20 15:03:15,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:15" (1/1) ... [2018-09-20 15:03:16,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:15" (1/1) ... [2018-09-20 15:03:16,011 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:15" (1/1) ... [2018-09-20 15:03:16,034 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:15" (1/1) ... [2018-09-20 15:03:16,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:15" (1/1) ... [2018-09-20 15:03:16,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:15" (1/1) ... [2018-09-20 15:03:16,054 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:03:16,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:03:16,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:03:16,058 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:03:16,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:15" (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 [2018-09-20 15:03:16,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:03:16,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:03:16,249 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-20 15:03:16,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2018-09-20 15:03:16,249 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:03:16,249 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:03:16,250 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-20 15:03:16,250 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2018-09-20 15:03:16,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:03:16,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 15:03:16,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 15:03:16,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:03:16,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 15:03:16,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 15:03:16,251 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:03:16,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:03:16,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:03:16,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 15:03:16,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 15:03:17,033 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:03:17,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:03:17 BoogieIcfgContainer [2018-09-20 15:03:17,034 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:03:17,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:03:17,036 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:03:17,040 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:03:17,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:03:15" (1/3) ... [2018-09-20 15:03:17,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ccaf28b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:03:17, skipping insertion in model container [2018-09-20 15:03:17,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:15" (2/3) ... [2018-09-20 15:03:17,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ccaf28b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:03:17, skipping insertion in model container [2018-09-20 15:03:17,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:03:17" (3/3) ... [2018-09-20 15:03:17,045 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1091_true-unreach-call.c [2018-09-20 15:03:17,055 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:03:17,065 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:03:17,125 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:03:17,126 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:03:17,126 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:03:17,126 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:03:17,126 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:03:17,126 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:03:17,127 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:03:17,127 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:03:17,127 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:03:17,151 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states. [2018-09-20 15:03:17,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-20 15:03:17,160 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:03:17,161 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] [2018-09-20 15:03:17,164 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:03:17,171 INFO L82 PathProgramCache]: Analyzing trace with hash -2071539765, now seen corresponding path program 1 times [2018-09-20 15:03:17,173 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:03:17,174 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:03:17,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:03:17,239 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:03:17,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:03:17,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:03:17,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:03:17,362 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:03:17,362 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:03:17,368 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:03:17,385 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:03:17,388 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:03:17,392 INFO L87 Difference]: Start difference. First operand 69 states. Second operand 2 states. [2018-09-20 15:03:17,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:03:17,436 INFO L93 Difference]: Finished difference Result 130 states and 168 transitions. [2018-09-20 15:03:17,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:03:17,439 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-09-20 15:03:17,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:03:17,456 INFO L225 Difference]: With dead ends: 130 [2018-09-20 15:03:17,456 INFO L226 Difference]: Without dead ends: 65 [2018-09-20 15:03:17,463 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 [2018-09-20 15:03:17,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-09-20 15:03:17,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-09-20 15:03:17,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-09-20 15:03:17,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 79 transitions. [2018-09-20 15:03:17,516 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 79 transitions. Word has length 23 [2018-09-20 15:03:17,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:03:17,517 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 79 transitions. [2018-09-20 15:03:17,517 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:03:17,517 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 79 transitions. [2018-09-20 15:03:17,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-09-20 15:03:17,519 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:03:17,519 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] [2018-09-20 15:03:17,519 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:03:17,520 INFO L82 PathProgramCache]: Analyzing trace with hash 2090889123, now seen corresponding path program 1 times [2018-09-20 15:03:17,520 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:03:17,520 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:03:17,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:03:17,521 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:03:17,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:03:17,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:03:17,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:03:17,631 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 15:03:17,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:03:17 BoogieIcfgContainer [2018-09-20 15:03:17,672 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:03:17,673 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:03:17,673 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:03:17,673 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:03:17,675 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:03:17" (3/4) ... [2018-09-20 15:03:17,679 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 15:03:17,679 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:03:17,680 INFO L168 Benchmark]: Toolchain (without parser) took 2145.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 950.5 MB in the beginning and 1.1 GB in the end (delta: -122.7 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:03:17,683 INFO L168 Benchmark]: CDTParser took 0.21 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. [2018-09-20 15:03:17,683 INFO L168 Benchmark]: CACSL2BoogieTranslator took 429.95 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 938.4 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:03:17,684 INFO L168 Benchmark]: Boogie Preprocessor took 87.87 ms. Allocated memory is still 1.0 GB. Free memory was 938.4 MB in the beginning and 933.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:03:17,686 INFO L168 Benchmark]: RCFGBuilder took 976.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -168.8 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2018-09-20 15:03:17,687 INFO L168 Benchmark]: TraceAbstraction took 637.04 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: 28.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:03:17,688 INFO L168 Benchmark]: Witness Printer took 6.45 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. [2018-09-20 15:03:17,693 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 429.95 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 938.4 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 87.87 ms. Allocated memory is still 1.0 GB. Free memory was 938.4 MB in the beginning and 933.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 976.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -168.8 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 637.04 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: 28.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 11.5 GB. * Witness Printer took 6.45 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: 95]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 57, overapproximation of someBinaryArithmeticDOUBLEoperation at line 90, overapproximation of bitwiseAnd at line 58, overapproximation of someBinaryDOUBLEComparisonOperation at line 15. Possible FailurePath: [L17] static const double huge_ceil = 1.0e300; VAL [\old(huge_ceil)=6442450947, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L90] double x = 0.0 / 0.0; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L91] CALL, EXPR ceil_double(x) VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L20] __int32_t i0, i1, j0; [L21] __uint32_t i, j; VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450949] [L23] FCALL ieee_double_shape_type ew_u; VAL [\old(x)=6442450949, ew_u={6442450950:0}, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450949] [L24] FCALL ew_u.value = (x) VAL [\old(x)=6442450949, ew_u={6442450950:0}, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450949] [L25] EXPR, FCALL ew_u.parts.msw VAL [\old(x)=6442450949, ew_u={6442450950:0}, ew_u.parts.msw=3, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450949] [L25] (i0) = ew_u.parts.msw VAL [\old(x)=6442450949, ew_u={6442450950:0}, ew_u.parts.msw=3, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, x=6442450949] [L25] FCALL (i0) = ew_u.parts.msw VAL [(i0) = ew_u.parts.msw=6442450948, \old(x)=6442450949, ew_u={6442450950:0}, ew_u.parts.msw=3, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, x=6442450949] [L26] EXPR, FCALL ew_u.parts.lsw VAL [\old(x)=6442450949, ew_u={6442450950:0}, ew_u.parts.lsw=6442450944, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, x=6442450949] [L26] (i1) = ew_u.parts.lsw VAL [\old(x)=6442450949, ew_u={6442450950:0}, ew_u.parts.lsw=6442450944, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, i1=-2147483648, x=6442450949] [L26] FCALL (i1) = ew_u.parts.lsw VAL [(i1) = ew_u.parts.lsw=6442450946, \old(x)=6442450949, ew_u={6442450950:0}, ew_u.parts.lsw=6442450944, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, i1=-2147483648, x=6442450949] [L27] COND FALSE !(0) VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, i1=-2147483648, x=6442450949] [L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, i1=-2147483648, x=6442450949] [L29] COND FALSE !(j0 < 20) VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, i1=-2147483648, j0=20, x=6442450949] [L51] COND FALSE !(j0 > 51) [L57] i = ((__uint32_t)(0xffffffff)) >> (j0 - 20) VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, i1=-2147483648, j0=20, x=6442450949] [L58] COND TRUE (i1 & i) == 0 [L59] RET return x; VAL [\old(x)=6442450949, \result=6442450949, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=3, i1=-2147483648, j0=20, x=6442450949] [L91] EXPR ceil_double(x) VAL [ceil_double(x)=6442450949, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450949] [L91] double res = ceil_double(x); [L94] CALL, EXPR isnan_double(res) VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L15] RET return x != x; VAL [\old(x)=6442450949, \result=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450949] [L94] EXPR isnan_double(res) VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, isnan_double(res)=0, res=6442450949, x=6442450949] [L94] COND TRUE !isnan_double(res) [L95] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=6442450949, x=6442450949] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 69 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 83 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=69occurred 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, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 484 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 0.1.23-40ef509 [2018-09-20 15:03:20,166 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:03:20,169 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:03:20,184 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:03:20,184 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:03:20,186 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:03:20,190 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:03:20,193 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:03:20,195 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:03:20,197 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:03:20,199 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:03:20,201 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:03:20,202 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:03:20,205 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:03:20,210 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:03:20,212 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:03:20,213 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:03:20,219 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:03:20,222 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:03:20,224 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:03:20,228 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:03:20,230 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:03:20,232 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:03:20,232 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:03:20,233 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:03:20,234 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:03:20,235 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:03:20,236 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:03:20,236 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:03:20,238 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:03:20,238 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:03:20,239 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:03:20,239 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:03:20,239 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:03:20,241 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:03:20,241 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:03:20,242 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 15:03:20,257 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:03:20,257 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:03:20,258 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:03:20,258 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:03:20,259 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:03:20,259 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:03:20,259 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:03:20,260 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:03:20,260 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:03:20,260 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:03:20,261 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:03:20,261 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:03:20,261 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:03:20,261 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:03:20,261 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 15:03:20,262 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 15:03:20,262 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:03:20,262 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:03:20,262 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:03:20,263 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:03:20,264 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:03:20,264 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:03:20,264 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:03:20,264 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:03:20,264 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:03:20,265 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:03:20,265 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:03:20,265 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 15:03:20,265 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:03:20,265 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 15:03:20,266 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 15:03:20,267 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 -> 84dba58cac25505e0eb3c404a47a071a268de901 [2018-09-20 15:03:20,318 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:03:20,334 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:03:20,339 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:03:20,341 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:03:20,341 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:03:20,342 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1091_true-unreach-call.c [2018-09-20 15:03:20,684 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f769fc9d2/769874085cb8431ba730984e7b7071ac/FLAGdc2bdb544 [2018-09-20 15:03:20,851 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:03:20,852 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1091_true-unreach-call.c [2018-09-20 15:03:20,860 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f769fc9d2/769874085cb8431ba730984e7b7071ac/FLAGdc2bdb544 [2018-09-20 15:03:20,877 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f769fc9d2/769874085cb8431ba730984e7b7071ac [2018-09-20 15:03:20,881 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:03:20,884 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:03:20,888 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:03:20,889 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:03:20,897 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:03:20,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:03:20" (1/1) ... [2018-09-20 15:03:20,901 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22fde42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:20, skipping insertion in model container [2018-09-20 15:03:20,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:03:20" (1/1) ... [2018-09-20 15:03:20,914 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:03:21,213 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:03:21,235 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:03:21,285 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:03:21,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:21 WrapperNode [2018-09-20 15:03:21,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:03:21,324 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:03:21,324 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:03:21,324 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:03:21,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:21" (1/1) ... [2018-09-20 15:03:21,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:21" (1/1) ... [2018-09-20 15:03:21,356 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:21" (1/1) ... [2018-09-20 15:03:21,356 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:21" (1/1) ... [2018-09-20 15:03:21,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:21" (1/1) ... [2018-09-20 15:03:21,373 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:21" (1/1) ... [2018-09-20 15:03:21,376 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:21" (1/1) ... [2018-09-20 15:03:21,381 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:03:21,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:03:21,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:03:21,383 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:03:21,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:21" (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 [2018-09-20 15:03:21,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:03:21,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:03:21,553 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-20 15:03:21,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2018-09-20 15:03:21,553 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:03:21,553 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:03:21,553 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-20 15:03:21,554 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2018-09-20 15:03:21,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:03:21,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-20 15:03:21,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 15:03:21,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:03:21,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 15:03:21,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-20 15:03:21,555 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:03:21,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:03:21,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:03:21,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 15:03:21,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-20 15:03:21,820 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:03:21,869 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:03:21,911 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:03:23,413 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:03:23,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:03:23 BoogieIcfgContainer [2018-09-20 15:03:23,415 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:03:23,415 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:03:23,416 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:03:23,419 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:03:23,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:03:20" (1/3) ... [2018-09-20 15:03:23,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@303c39fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:03:23, skipping insertion in model container [2018-09-20 15:03:23,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:21" (2/3) ... [2018-09-20 15:03:23,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@303c39fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:03:23, skipping insertion in model container [2018-09-20 15:03:23,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:03:23" (3/3) ... [2018-09-20 15:03:23,423 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1091_true-unreach-call.c [2018-09-20 15:03:23,434 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:03:23,444 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:03:23,501 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:03:23,502 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:03:23,502 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:03:23,503 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:03:23,503 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:03:23,503 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:03:23,503 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:03:23,504 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:03:23,504 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:03:23,525 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2018-09-20 15:03:23,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-20 15:03:23,533 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:03:23,534 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] [2018-09-20 15:03:23,537 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:03:23,543 INFO L82 PathProgramCache]: Analyzing trace with hash -1545623547, now seen corresponding path program 1 times [2018-09-20 15:03:23,548 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:03:23,549 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 [2018-09-20 15:03:23,562 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:03:23,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:03:23,629 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:03:23,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:03:23,649 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:03:23,664 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:03:23,664 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:03:23,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:03:23,680 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:03:23,681 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:03:23,683 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 2 states. [2018-09-20 15:03:23,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:03:23,712 INFO L93 Difference]: Finished difference Result 128 states and 166 transitions. [2018-09-20 15:03:23,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:03:23,713 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-09-20 15:03:23,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:03:23,727 INFO L225 Difference]: With dead ends: 128 [2018-09-20 15:03:23,727 INFO L226 Difference]: Without dead ends: 64 [2018-09-20 15:03:23,731 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:03:23,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-09-20 15:03:23,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-09-20 15:03:23,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-09-20 15:03:23,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 78 transitions. [2018-09-20 15:03:23,778 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 78 transitions. Word has length 22 [2018-09-20 15:03:23,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:03:23,779 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 78 transitions. [2018-09-20 15:03:23,779 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:03:23,779 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 78 transitions. [2018-09-20 15:03:23,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-09-20 15:03:23,781 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:03:23,781 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] [2018-09-20 15:03:23,782 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:03:23,782 INFO L82 PathProgramCache]: Analyzing trace with hash -889444119, now seen corresponding path program 1 times [2018-09-20 15:03:23,783 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:03:23,783 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 [2018-09-20 15:03:23,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:03:23,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:03:23,862 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:03:24,347 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-09-20 15:03:24,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:03:24,471 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:03:24,483 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:03:24,484 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:03:24,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:03:24,486 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:03:24,486 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:03:24,487 INFO L87 Difference]: Start difference. First operand 64 states and 78 transitions. Second operand 9 states. [2018-09-20 15:03:24,814 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-09-20 15:03:27,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:03:27,452 INFO L93 Difference]: Finished difference Result 73 states and 87 transitions. [2018-09-20 15:03:27,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-20 15:03:27,453 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 35 [2018-09-20 15:03:27,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:03:27,457 INFO L225 Difference]: With dead ends: 73 [2018-09-20 15:03:27,458 INFO L226 Difference]: Without dead ends: 66 [2018-09-20 15:03:27,463 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-09-20 15:03:27,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-09-20 15:03:27,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2018-09-20 15:03:27,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-09-20 15:03:27,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 75 transitions. [2018-09-20 15:03:27,476 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 75 transitions. Word has length 35 [2018-09-20 15:03:27,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:03:27,477 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 75 transitions. [2018-09-20 15:03:27,477 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:03:27,477 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 75 transitions. [2018-09-20 15:03:27,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-09-20 15:03:27,479 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:03:27,479 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] [2018-09-20 15:03:27,479 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:03:27,480 INFO L82 PathProgramCache]: Analyzing trace with hash 487945609, now seen corresponding path program 1 times [2018-09-20 15:03:27,480 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:03:27,480 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 [2018-09-20 15:03:27,488 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:03:27,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:03:27,590 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:03:28,383 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-09-20 15:03:29,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:03:29,184 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:03:29,200 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:03:29,200 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:03:29,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:03:29,201 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:03:29,203 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:03:29,203 INFO L87 Difference]: Start difference. First operand 64 states and 75 transitions. Second operand 9 states. [2018-09-20 15:03:30,672 WARN L178 SmtUtils]: Spent 658.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-20 15:03:36,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:03:36,206 INFO L93 Difference]: Finished difference Result 71 states and 82 transitions. [2018-09-20 15:03:36,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-20 15:03:36,207 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 35 [2018-09-20 15:03:36,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:03:36,210 INFO L225 Difference]: With dead ends: 71 [2018-09-20 15:03:36,210 INFO L226 Difference]: Without dead ends: 63 [2018-09-20 15:03:36,211 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-09-20 15:03:36,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-09-20 15:03:36,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-09-20 15:03:36,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-09-20 15:03:36,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 73 transitions. [2018-09-20 15:03:36,219 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 73 transitions. Word has length 35 [2018-09-20 15:03:36,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:03:36,220 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 73 transitions. [2018-09-20 15:03:36,220 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:03:36,220 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 73 transitions. [2018-09-20 15:03:36,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-20 15:03:36,221 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:03:36,222 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] [2018-09-20 15:03:36,222 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:03:36,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1420441199, now seen corresponding path program 1 times [2018-09-20 15:03:36,223 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:03:36,223 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 [2018-09-20 15:03:36,231 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:03:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:03:36,374 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:03:36,436 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 [2018-09-20 15:03:36,448 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 [2018-09-20 15:03:36,448 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:03:36,458 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:36,480 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. [2018-09-20 15:03:36,481 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-20 15:03:36,532 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 [2018-09-20 15:03:36,546 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 [2018-09-20 15:03:36,547 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:03:36,553 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:36,563 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. [2018-09-20 15:03:36,563 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-20 15:03:37,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:03:37,014 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:03:37,029 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:03:37,030 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:03:37,030 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:03:37,030 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:03:37,031 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:03:37,031 INFO L87 Difference]: Start difference. First operand 63 states and 73 transitions. Second operand 9 states. [2018-09-20 15:03:37,615 WARN L178 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-20 15:03:41,245 WARN L178 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2018-09-20 15:03:43,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:03:43,181 INFO L93 Difference]: Finished difference Result 119 states and 128 transitions. [2018-09-20 15:03:43,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-20 15:03:43,184 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 48 [2018-09-20 15:03:43,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:03:43,186 INFO L225 Difference]: With dead ends: 119 [2018-09-20 15:03:43,187 INFO L226 Difference]: Without dead ends: 72 [2018-09-20 15:03:43,188 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2018-09-20 15:03:43,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-09-20 15:03:43,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 55. [2018-09-20 15:03:43,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-09-20 15:03:43,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2018-09-20 15:03:43,200 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 48 [2018-09-20 15:03:43,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:03:43,200 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2018-09-20 15:03:43,200 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:03:43,203 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2018-09-20 15:03:43,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-09-20 15:03:43,204 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:03:43,204 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] [2018-09-20 15:03:43,204 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:03:43,205 INFO L82 PathProgramCache]: Analyzing trace with hash 40271193, now seen corresponding path program 1 times [2018-09-20 15:03:43,205 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:03:43,208 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 [2018-09-20 15:03:43,221 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:03:43,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:03:43,381 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:03:43,427 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 [2018-09-20 15:03:43,433 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 [2018-09-20 15:03:43,433 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:03:43,440 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:43,457 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. [2018-09-20 15:03:43,458 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-20 15:03:43,493 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 [2018-09-20 15:03:43,498 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 [2018-09-20 15:03:43,498 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:03:43,502 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:43,513 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. [2018-09-20 15:03:43,514 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-20 15:03:43,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:03:43,927 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:03:43,942 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:03:43,943 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-20 15:03:43,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-20 15:03:43,943 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-20 15:03:43,944 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-09-20 15:03:43,944 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand 10 states. [2018-09-20 15:03:45,333 WARN L178 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2018-09-20 15:03:47,023 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2018-09-20 15:03:47,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:03:47,208 INFO L93 Difference]: Finished difference Result 72 states and 75 transitions. [2018-09-20 15:03:47,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-20 15:03:47,209 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 49 [2018-09-20 15:03:47,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:03:47,210 INFO L225 Difference]: With dead ends: 72 [2018-09-20 15:03:47,210 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 15:03:47,211 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2018-09-20 15:03:47,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 15:03:47,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 15:03:47,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 15:03:47,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 15:03:47,212 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2018-09-20 15:03:47,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:03:47,212 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 15:03:47,213 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-20 15:03:47,213 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 15:03:47,213 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 15:03:47,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 15:03:47,566 WARN L178 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 9 [2018-09-20 15:03:47,577 INFO L429 ceAbstractionStarter]: At program point isnan_doubleENTRY(line 15) the Hoare annotation is: true [2018-09-20 15:03:47,577 INFO L426 ceAbstractionStarter]: For program point isnan_doubleEXIT(line 15) no Hoare annotation was computed. [2018-09-20 15:03:47,577 INFO L426 ceAbstractionStarter]: For program point isnan_doubleFINAL(line 15) no Hoare annotation was computed. [2018-09-20 15:03:47,577 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:03:47,577 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:03:47,577 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:03:47,577 INFO L426 ceAbstractionStarter]: For program point L60(lines 60 72) no Hoare annotation was computed. [2018-09-20 15:03:47,577 INFO L426 ceAbstractionStarter]: For program point L52(lines 52 55) no Hoare annotation was computed. [2018-09-20 15:03:47,578 INFO L426 ceAbstractionStarter]: For program point L77(line 77) no Hoare annotation was computed. [2018-09-20 15:03:47,578 INFO L426 ceAbstractionStarter]: For program point L44(lines 44 49) no Hoare annotation was computed. [2018-09-20 15:03:47,578 INFO L426 ceAbstractionStarter]: For program point L61(lines 61 70) no Hoare annotation was computed. [2018-09-20 15:03:47,578 INFO L426 ceAbstractionStarter]: For program point L61-1(lines 61 70) no Hoare annotation was computed. [2018-09-20 15:03:47,578 INFO L426 ceAbstractionStarter]: For program point L78(line 78) no Hoare annotation was computed. [2018-09-20 15:03:47,578 INFO L426 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-09-20 15:03:47,581 INFO L426 ceAbstractionStarter]: For program point L78-1(line 78) no Hoare annotation was computed. [2018-09-20 15:03:47,581 INFO L426 ceAbstractionStarter]: For program point L78-2(line 78) no Hoare annotation was computed. [2018-09-20 15:03:47,581 INFO L426 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2018-09-20 15:03:47,582 INFO L426 ceAbstractionStarter]: For program point L78-3(line 78) no Hoare annotation was computed. [2018-09-20 15:03:47,582 INFO L426 ceAbstractionStarter]: For program point L62(lines 62 69) no Hoare annotation was computed. [2018-09-20 15:03:47,582 INFO L426 ceAbstractionStarter]: For program point L29(lines 29 73) no Hoare annotation was computed. [2018-09-20 15:03:47,582 INFO L429 ceAbstractionStarter]: At program point ceil_doubleENTRY(lines 19 81) the Hoare annotation is: true [2018-09-20 15:03:47,582 INFO L426 ceAbstractionStarter]: For program point ceil_doubleFINAL(lines 19 81) no Hoare annotation was computed. [2018-09-20 15:03:47,582 INFO L426 ceAbstractionStarter]: For program point ceil_doubleEXIT(lines 19 81) no Hoare annotation was computed. [2018-09-20 15:03:47,582 INFO L426 ceAbstractionStarter]: For program point L30(lines 30 50) no Hoare annotation was computed. [2018-09-20 15:03:47,582 INFO L426 ceAbstractionStarter]: For program point L22-1(lines 22 27) no Hoare annotation was computed. [2018-09-20 15:03:47,583 INFO L422 ceAbstractionStarter]: At program point L22-3(lines 22 27) the Hoare annotation is: (= |ceil_double_#in~x| ceil_double_~x) [2018-09-20 15:03:47,583 INFO L426 ceAbstractionStarter]: For program point L22-4(lines 22 27) no Hoare annotation was computed. [2018-09-20 15:03:47,583 INFO L426 ceAbstractionStarter]: For program point L31(lines 31 39) no Hoare annotation was computed. [2018-09-20 15:03:47,583 INFO L426 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-09-20 15:03:47,583 INFO L426 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-09-20 15:03:47,583 INFO L426 ceAbstractionStarter]: For program point L23-2(line 23) no Hoare annotation was computed. [2018-09-20 15:03:47,583 INFO L426 ceAbstractionStarter]: For program point L23-3(line 23) no Hoare annotation was computed. [2018-09-20 15:03:47,586 INFO L426 ceAbstractionStarter]: For program point L32(lines 32 38) no Hoare annotation was computed. [2018-09-20 15:03:47,587 INFO L426 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-09-20 15:03:47,587 INFO L426 ceAbstractionStarter]: For program point L74(lines 74 79) no Hoare annotation was computed. [2018-09-20 15:03:47,587 INFO L426 ceAbstractionStarter]: For program point L74-2(lines 19 81) no Hoare annotation was computed. [2018-09-20 15:03:47,587 INFO L426 ceAbstractionStarter]: For program point L74-3(lines 74 79) no Hoare annotation was computed. [2018-09-20 15:03:47,587 INFO L426 ceAbstractionStarter]: For program point L66(lines 66 67) no Hoare annotation was computed. [2018-09-20 15:03:47,587 INFO L426 ceAbstractionStarter]: For program point L66-2(lines 66 67) no Hoare annotation was computed. [2018-09-20 15:03:47,587 INFO L426 ceAbstractionStarter]: For program point L58(lines 58 59) no Hoare annotation was computed. [2018-09-20 15:03:47,587 INFO L426 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-09-20 15:03:47,587 INFO L426 ceAbstractionStarter]: For program point L25-1(line 25) no Hoare annotation was computed. [2018-09-20 15:03:47,587 INFO L426 ceAbstractionStarter]: For program point L25-2(line 25) no Hoare annotation was computed. [2018-09-20 15:03:47,588 INFO L426 ceAbstractionStarter]: For program point L75(line 75) no Hoare annotation was computed. [2018-09-20 15:03:47,588 INFO L426 ceAbstractionStarter]: For program point L42(lines 42 43) no Hoare annotation was computed. [2018-09-20 15:03:47,588 INFO L426 ceAbstractionStarter]: For program point L75-1(line 75) no Hoare annotation was computed. [2018-09-20 15:03:47,588 INFO L426 ceAbstractionStarter]: For program point L75-2(line 75) no Hoare annotation was computed. [2018-09-20 15:03:47,588 INFO L426 ceAbstractionStarter]: For program point L75-3(line 75) no Hoare annotation was computed. [2018-09-20 15:03:47,588 INFO L426 ceAbstractionStarter]: For program point L26(line 26) no Hoare annotation was computed. [2018-09-20 15:03:47,588 INFO L426 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2018-09-20 15:03:47,588 INFO L426 ceAbstractionStarter]: For program point L26-2(line 26) no Hoare annotation was computed. [2018-09-20 15:03:47,592 INFO L426 ceAbstractionStarter]: For program point L26-3(line 26) no Hoare annotation was computed. [2018-09-20 15:03:47,592 INFO L426 ceAbstractionStarter]: For program point L51(lines 51 73) no Hoare annotation was computed. [2018-09-20 15:03:47,592 INFO L426 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-09-20 15:03:47,592 INFO L426 ceAbstractionStarter]: For program point L35(lines 35 38) no Hoare annotation was computed. [2018-09-20 15:03:47,592 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:03:47,592 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-20 15:03:47,592 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:03:47,593 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:03:47,593 INFO L426 ceAbstractionStarter]: For program point L95(line 95) no Hoare annotation was computed. [2018-09-20 15:03:47,593 INFO L422 ceAbstractionStarter]: At program point L94(line 94) the Hoare annotation is: (let ((.cse0 (fp.div RNE (_ +zero 11 53) (_ +zero 11 53)))) (and (= main_~res~0 (fp.add RNE .cse0 .cse0)) (= .cse0 main_~x~0))) [2018-09-20 15:03:47,593 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 83 100) the Hoare annotation is: true [2018-09-20 15:03:47,593 INFO L426 ceAbstractionStarter]: For program point L94-1(lines 94 97) no Hoare annotation was computed. [2018-09-20 15:03:47,593 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 83 100) no Hoare annotation was computed. [2018-09-20 15:03:47,594 INFO L422 ceAbstractionStarter]: At program point L91(line 91) the Hoare annotation is: (= (fp.div RNE (_ +zero 11 53) (_ +zero 11 53)) main_~x~0) [2018-09-20 15:03:47,594 INFO L426 ceAbstractionStarter]: For program point L91-1(line 91) no Hoare annotation was computed. [2018-09-20 15:03:47,594 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 83 100) no Hoare annotation was computed. [2018-09-20 15:03:47,594 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 95) no Hoare annotation was computed. [2018-09-20 15:03:47,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:03:47 BoogieIcfgContainer [2018-09-20 15:03:47,608 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:03:47,608 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:03:47,608 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:03:47,608 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:03:47,609 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:03:23" (3/4) ... [2018-09-20 15:03:47,612 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 15:03:47,618 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_double [2018-09-20 15:03:47,619 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 15:03:47,619 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ceil_double [2018-09-20 15:03:47,619 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 15:03:47,625 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2018-09-20 15:03:47,626 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-09-20 15:03:47,626 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-20 15:03:47,652 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-09-20 15:03:47,703 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 15:03:47,703 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:03:47,705 INFO L168 Benchmark]: Toolchain (without parser) took 26822.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 195.6 MB). Free memory was 954.6 MB in the beginning and 1.2 GB in the end (delta: -219.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:03:47,706 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:03:47,707 INFO L168 Benchmark]: CACSL2BoogieTranslator took 435.24 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 943.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:03:47,707 INFO L168 Benchmark]: Boogie Preprocessor took 57.43 ms. Allocated memory is still 1.0 GB. Free memory was 943.8 MB in the beginning and 938.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:03:47,708 INFO L168 Benchmark]: RCFGBuilder took 2031.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 938.4 MB in the beginning and 1.1 GB in the end (delta: -161.7 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:03:47,709 INFO L168 Benchmark]: TraceAbstraction took 24192.12 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 62.9 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -81.7 MB). Peak memory consumption was 312.2 MB. Max. memory is 11.5 GB. [2018-09-20 15:03:47,711 INFO L168 Benchmark]: Witness Printer took 95.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.8 MB). Peak memory consumption was 7.8 MB. Max. memory is 11.5 GB. [2018-09-20 15:03:47,715 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 435.24 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 943.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 57.43 ms. Allocated memory is still 1.0 GB. Free memory was 943.8 MB in the beginning and 938.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2031.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 938.4 MB in the beginning and 1.1 GB in the end (delta: -161.7 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 24192.12 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 62.9 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -81.7 MB). Peak memory consumption was 312.2 MB. Max. memory is 11.5 GB. * Witness Printer took 95.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.8 MB). Peak memory consumption was 7.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 95]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 68 locations, 1 error locations. SAFE Result, 24.1s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 19.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 283 SDtfs, 399 SDslu, 1153 SDs, 0 SdLazy, 492 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 215 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 7.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 13 PreInvPairs, 16 NumberOfFragments, 34 HoareAnnotationTreeSize, 13 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 14 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 189 NumberOfCodeBlocks, 189 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 184 ConstructedInterpolants, 61 QuantifiedInterpolants, 76833 SizeOfPredicates, 24 NumberOfNonLiveVariables, 383 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...