/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1130a_true-unreach-call.c --full-output --architecture 32bit --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5eb3fea6 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1130a_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 aa2086ab05aa915f1fa31296bc02fdb3a78fa087 --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false .................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1130a_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 aa2086ab05aa915f1fa31296bc02fdb3a78fa087 --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:11:47,950 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:11:47,953 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:11:47,968 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:11:47,969 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:11:47,970 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:11:47,971 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:11:47,973 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:11:47,974 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:11:47,975 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:11:47,977 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:11:47,977 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:11:47,978 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:11:47,980 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:11:47,983 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:11:47,984 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:11:47,985 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:11:47,991 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:11:47,995 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:11:47,998 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:11:48,000 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:11:48,001 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:11:48,003 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:11:48,003 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:11:48,003 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:11:48,004 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:11:48,005 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:11:48,006 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:11:48,007 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:11:48,008 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:11:48,008 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:11:48,008 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:11:48,009 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:11:48,009 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:11:48,010 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:11:48,010 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:11:48,011 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:11:48,038 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:11:48,039 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:11:48,040 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:11:48,040 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:11:48,040 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:11:48,041 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:11:48,041 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:11:48,041 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:11:48,041 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:11:48,043 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:11:48,043 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:11:48,044 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:11:48,044 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:11:48,044 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:11:48,044 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:11:48,045 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:11:48,045 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:11:48,045 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:11:48,046 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:11:48,046 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:11:48,046 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:11:48,046 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:11:48,048 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:11:48,049 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:11:48,050 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:11:48,050 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:11:48,050 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:11:48,050 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:11:48,050 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:11:48,050 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 -> aa2086ab05aa915f1fa31296bc02fdb3a78fa087 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:11:48,107 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:11:48,124 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:11:48,130 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:11:48,132 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:11:48,133 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:11:48,134 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1130a_true-unreach-call.c [2018-09-21 18:11:48,523 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71cd4d799/04ff7bbe5ad24286ba946babc69f43fe/FLAG3c6fde7fb [2018-09-21 18:11:48,669 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:11:48,670 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1130a_true-unreach-call.c [2018-09-21 18:11:48,678 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71cd4d799/04ff7bbe5ad24286ba946babc69f43fe/FLAG3c6fde7fb [2018-09-21 18:11:48,695 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71cd4d799/04ff7bbe5ad24286ba946babc69f43fe [2018-09-21 18:11:48,700 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:11:48,702 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:11:48,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:11:48,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:11:48,711 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:11:48,712 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:11:48" (1/1) ... [2018-09-21 18:11:48,715 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@658977b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:48, skipping insertion in model container [2018-09-21 18:11:48,715 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:11:48" (1/1) ... [2018-09-21 18:11:48,727 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:11:49,033 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:11:49,053 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:11:49,094 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:11:49,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:49 WrapperNode [2018-09-21 18:11:49,131 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:11:49,132 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:11:49,132 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:11:49,132 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:11:49,149 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:49" (1/1) ... [2018-09-21 18:11:49,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:49" (1/1) ... [2018-09-21 18:11:49,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:49" (1/1) ... [2018-09-21 18:11:49,166 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:49" (1/1) ... [2018-09-21 18:11:49,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:49" (1/1) ... [2018-09-21 18:11:49,190 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:49" (1/1) ... [2018-09-21 18:11:49,194 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:49" (1/1) ... [2018-09-21 18:11:49,199 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:11:49,199 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:11:49,199 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:11:49,200 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:11:49,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:11:49,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:11:49,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:11:49,363 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-21 18:11:49,363 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2018-09-21 18:11:49,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-09-21 18:11:49,363 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:11:49,363 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:11:49,364 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-21 18:11:49,364 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-21 18:11:49,364 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2018-09-21 18:11:49,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:11:49,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:11:49,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:11:49,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:11:49,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:11:49,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:11:49,365 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-09-21 18:11:49,365 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:11:49,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:11:49,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:11:49,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:11:49,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:11:50,579 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:11:50,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:11:50 BoogieIcfgContainer [2018-09-21 18:11:50,580 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:11:50,581 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:11:50,582 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:11:50,585 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:11:50,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:11:48" (1/3) ... [2018-09-21 18:11:50,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@524e9c48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:11:50, skipping insertion in model container [2018-09-21 18:11:50,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:49" (2/3) ... [2018-09-21 18:11:50,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@524e9c48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:11:50, skipping insertion in model container [2018-09-21 18:11:50,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:11:50" (3/3) ... [2018-09-21 18:11:50,589 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1130a_true-unreach-call.c [2018-09-21 18:11:50,600 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:11:50,610 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:11:50,652 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:11:50,653 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:11:50,653 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:11:50,653 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:11:50,653 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:11:50,654 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:11:50,654 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:11:50,654 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:11:50,654 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:11:50,677 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states. [2018-09-21 18:11:50,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-21 18:11:50,690 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:11:50,691 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:11:50,693 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:11:50,699 INFO L82 PathProgramCache]: Analyzing trace with hash 153762501, now seen corresponding path program 1 times [2018-09-21 18:11:50,701 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:11:50,702 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:11:50,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:11:50,758 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:11:50,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:11:50,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:11:50,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:11:50,856 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:11:50,857 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:11:50,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:11:50,878 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:11:50,879 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:11:50,882 INFO L87 Difference]: Start difference. First operand 132 states. Second operand 2 states. [2018-09-21 18:11:50,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:11:50,917 INFO L93 Difference]: Finished difference Result 132 states and 160 transitions. [2018-09-21 18:11:50,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:11:50,919 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-09-21 18:11:50,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:11:50,938 INFO L225 Difference]: With dead ends: 132 [2018-09-21 18:11:50,938 INFO L226 Difference]: Without dead ends: 127 [2018-09-21 18:11:50,942 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:11:50,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2018-09-21 18:11:50,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2018-09-21 18:11:50,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2018-09-21 18:11:50,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 154 transitions. [2018-09-21 18:11:50,995 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 154 transitions. Word has length 19 [2018-09-21 18:11:50,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:11:50,995 INFO L480 AbstractCegarLoop]: Abstraction has 127 states and 154 transitions. [2018-09-21 18:11:50,996 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:11:50,996 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 154 transitions. [2018-09-21 18:11:50,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-09-21 18:11:50,998 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:11:50,998 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] [2018-09-21 18:11:50,998 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:11:50,999 INFO L82 PathProgramCache]: Analyzing trace with hash 712911393, now seen corresponding path program 1 times [2018-09-21 18:11:50,999 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:11:50,999 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:11:51,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:11:51,000 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:11:51,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:11:51,070 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createLAEquality(EqualityProxy.java:91) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createCCEquality(EqualityProxy.java:112) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.mbtc(LinArSolve.java:2063) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.computeConflictClause(LinArSolve.java:618) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.checkConsistency(DPLLEngine.java:1027) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.solve(DPLLEngine.java:1171) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol$CheckType$1.check(SMTInterpol.java:114) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSatAssuming(SMTInterpol.java:502) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSat(SMTInterpol.java:455) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:293) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.(TraceCheck.java:214) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:183) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:430) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:375) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:313) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-09-21 18:11:51,078 INFO L168 Benchmark]: Toolchain (without parser) took 2377.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 951.8 MB in the beginning and 1.1 GB in the end (delta: -103.8 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:51,081 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:11:51,082 INFO L168 Benchmark]: CACSL2BoogieTranslator took 428.18 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:51,083 INFO L168 Benchmark]: Boogie Preprocessor took 66.63 ms. Allocated memory is still 1.0 GB. Free memory was 935.7 MB in the beginning and 930.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:51,084 INFO L168 Benchmark]: RCFGBuilder took 1381.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 930.4 MB in the beginning and 1.1 GB in the end (delta: -152.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:51,085 INFO L168 Benchmark]: TraceAbstraction took 495.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:51,093 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 428.18 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 66.63 ms. Allocated memory is still 1.0 GB. Free memory was 935.7 MB in the beginning and 930.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1381.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 930.4 MB in the beginning and 1.1 GB in the end (delta: -152.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 495.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createLAEquality(EqualityProxy.java:91) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:11:53,509 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:11:53,514 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:11:53,533 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:11:53,534 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:11:53,535 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:11:53,536 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:11:53,538 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:11:53,539 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:11:53,540 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:11:53,541 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:11:53,541 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:11:53,542 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:11:53,543 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:11:53,544 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:11:53,545 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:11:53,546 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:11:53,548 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:11:53,550 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:11:53,552 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:11:53,553 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:11:53,554 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:11:53,556 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:11:53,557 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:11:53,557 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:11:53,558 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:11:53,559 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:11:53,560 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:11:53,561 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:11:53,562 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:11:53,562 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:11:53,563 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:11:53,563 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:11:53,564 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:11:53,565 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:11:53,565 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:11:53,566 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:11:53,582 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:11:53,582 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:11:53,583 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:11:53,583 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:11:53,584 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:11:53,584 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:11:53,584 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:11:53,584 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:11:53,585 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:11:53,585 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:11:53,585 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:11:53,585 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:11:53,585 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:11:53,585 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:11:53,586 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:11:53,586 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:11:53,586 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:11:53,586 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:11:53,586 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:11:53,587 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:11:53,587 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:11:53,587 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:11:53,587 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:11:53,587 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:11:53,588 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:11:53,588 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:11:53,588 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:11:53,588 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:11:53,588 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:11:53,589 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:11:53,589 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:11:53,589 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 -> aa2086ab05aa915f1fa31296bc02fdb3a78fa087 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:11:53,642 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:11:53,656 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:11:53,660 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:11:53,661 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:11:53,661 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:11:53,662 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1130a_true-unreach-call.c [2018-09-21 18:11:54,043 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56b54a7a0/4a1ab51a54194dd58426a93d55b6b738/FLAGb7575a7e8 [2018-09-21 18:11:54,193 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:11:54,194 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1130a_true-unreach-call.c [2018-09-21 18:11:54,204 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56b54a7a0/4a1ab51a54194dd58426a93d55b6b738/FLAGb7575a7e8 [2018-09-21 18:11:54,222 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56b54a7a0/4a1ab51a54194dd58426a93d55b6b738 [2018-09-21 18:11:54,229 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:11:54,233 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:11:54,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:11:54,235 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:11:54,243 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:11:54,244 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:11:54" (1/1) ... [2018-09-21 18:11:54,247 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@317c4a77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:54, skipping insertion in model container [2018-09-21 18:11:54,248 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:11:54" (1/1) ... [2018-09-21 18:11:54,261 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:11:54,550 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:11:54,581 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:11:54,649 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:11:54,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:54 WrapperNode [2018-09-21 18:11:54,711 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:11:54,712 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:11:54,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:11:54,712 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:11:54,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:54" (1/1) ... [2018-09-21 18:11:54,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:54" (1/1) ... [2018-09-21 18:11:54,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:54" (1/1) ... [2018-09-21 18:11:54,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:54" (1/1) ... [2018-09-21 18:11:54,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:54" (1/1) ... [2018-09-21 18:11:54,785 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:54" (1/1) ... [2018-09-21 18:11:54,795 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:54" (1/1) ... [2018-09-21 18:11:54,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:11:54,805 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:11:54,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:11:54,806 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:11:54,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:11:54,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:11:54,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:11:54,969 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-21 18:11:54,969 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2018-09-21 18:11:54,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-09-21 18:11:54,972 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:11:54,972 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:11:54,972 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-21 18:11:54,972 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-21 18:11:54,972 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2018-09-21 18:11:54,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:11:54,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-21 18:11:54,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:11:54,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:11:54,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:11:54,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-21 18:11:54,976 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-09-21 18:11:54,976 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:11:54,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:11:54,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:11:54,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:11:54,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-21 18:11:55,214 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:11:55,245 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:11:55,664 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:11:55,679 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:11:55,717 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:11:55,807 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:11:55,839 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:11:56,286 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:11:58,961 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:11:58,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:11:58 BoogieIcfgContainer [2018-09-21 18:11:58,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:11:58,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:11:58,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:11:58,968 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:11:58,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:11:54" (1/3) ... [2018-09-21 18:11:58,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@116f64d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:11:58, skipping insertion in model container [2018-09-21 18:11:58,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:54" (2/3) ... [2018-09-21 18:11:58,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@116f64d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:11:58, skipping insertion in model container [2018-09-21 18:11:58,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:11:58" (3/3) ... [2018-09-21 18:11:58,973 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1130a_true-unreach-call.c [2018-09-21 18:11:58,984 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:11:58,995 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:11:59,046 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:11:59,047 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:11:59,047 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:11:59,047 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:11:59,047 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:11:59,048 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:11:59,048 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:11:59,048 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:11:59,048 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:11:59,080 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states. [2018-09-21 18:11:59,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-21 18:11:59,100 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:11:59,101 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:11:59,104 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:11:59,109 INFO L82 PathProgramCache]: Analyzing trace with hash 153762501, now seen corresponding path program 1 times [2018-09-21 18:11:59,115 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:11:59,115 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-21 18:11:59,127 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:12:00,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:12:00,172 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:12:00,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:12:00,190 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:12:00,214 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:12:00,215 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:12:00,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:12:00,232 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:12:00,233 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:12:00,235 INFO L87 Difference]: Start difference. First operand 132 states. Second operand 2 states. [2018-09-21 18:12:00,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:12:00,260 INFO L93 Difference]: Finished difference Result 132 states and 160 transitions. [2018-09-21 18:12:00,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:12:00,261 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-09-21 18:12:00,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:12:00,276 INFO L225 Difference]: With dead ends: 132 [2018-09-21 18:12:00,276 INFO L226 Difference]: Without dead ends: 127 [2018-09-21 18:12:00,278 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:12:00,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2018-09-21 18:12:00,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2018-09-21 18:12:00,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2018-09-21 18:12:00,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 154 transitions. [2018-09-21 18:12:00,334 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 154 transitions. Word has length 19 [2018-09-21 18:12:00,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:12:00,335 INFO L480 AbstractCegarLoop]: Abstraction has 127 states and 154 transitions. [2018-09-21 18:12:00,335 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:12:00,335 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 154 transitions. [2018-09-21 18:12:00,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-09-21 18:12:00,338 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:12:00,338 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] [2018-09-21 18:12:00,338 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:12:00,339 INFO L82 PathProgramCache]: Analyzing trace with hash 712911393, now seen corresponding path program 1 times [2018-09-21 18:12:00,340 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:12:00,340 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-21 18:12:00,350 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:12:01,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:12:01,541 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:12:01,792 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-21 18:12:01,839 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-21 18:12:01,840 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:12:01,852 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:12:01,942 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:12:01,943 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:23 [2018-09-21 18:12:02,144 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-21 18:12:02,161 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-21 18:12:02,162 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:12:02,189 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:12:02,282 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:12:02,282 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:17 [2018-09-21 18:12:02,635 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 18:12:02,636 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 18:12:02,637 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 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 27 treesize of output 35 [2018-09-21 18:12:02,657 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:12:02,689 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2018-09-21 18:12:02,691 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:12:02,717 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:12:02,836 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-21 18:12:02,837 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:49, output treesize:41 [2018-09-21 18:12:03,389 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2018-09-21 18:12:03,628 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 18:12:03,641 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 18:12:03,643 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 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 54 treesize of output 56 [2018-09-21 18:12:03,677 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:12:03,699 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2018-09-21 18:12:03,700 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:12:03,748 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:12:03,852 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-09-21 18:12:03,852 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:76, output treesize:68 [2018-09-21 18:12:03,984 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 35 treesize of output 27 [2018-09-21 18:12:03,994 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:12:04,002 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2018-09-21 18:12:04,003 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:12:04,019 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:12:04,059 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-21 18:12:04,060 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:57, output treesize:31 [2018-09-21 18:12:05,118 WARN L178 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 49 [2018-09-21 18:12:05,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:12:05,157 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:12:05,185 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:12:05,186 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-21 18:12:05,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-21 18:12:05,188 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-21 18:12:05,189 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2018-09-21 18:12:05,189 INFO L87 Difference]: Start difference. First operand 127 states and 154 transitions. Second operand 15 states. [2018-09-21 18:12:05,899 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-09-21 18:12:07,855 WARN L178 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2018-09-21 18:12:08,165 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2018-09-21 18:12:08,617 WARN L178 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2018-09-21 18:12:08,914 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2018-09-21 18:12:09,406 WARN L178 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2018-09-21 18:12:09,779 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2018-09-21 18:12:10,185 WARN L178 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-09-21 18:12:10,603 WARN L178 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2018-09-21 18:12:18,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:12:18,539 INFO L93 Difference]: Finished difference Result 133 states and 159 transitions. [2018-09-21 18:12:18,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-21 18:12:18,541 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 45 [2018-09-21 18:12:18,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:12:18,546 INFO L225 Difference]: With dead ends: 133 [2018-09-21 18:12:18,546 INFO L226 Difference]: Without dead ends: 131 [2018-09-21 18:12:18,547 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=139, Invalid=673, Unknown=0, NotChecked=0, Total=812 [2018-09-21 18:12:18,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2018-09-21 18:12:18,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 127. [2018-09-21 18:12:18,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2018-09-21 18:12:18,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 153 transitions. [2018-09-21 18:12:18,563 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 153 transitions. Word has length 45 [2018-09-21 18:12:18,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:12:18,564 INFO L480 AbstractCegarLoop]: Abstraction has 127 states and 153 transitions. [2018-09-21 18:12:18,564 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-21 18:12:18,564 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 153 transitions. [2018-09-21 18:12:18,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-09-21 18:12:18,566 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:12:18,566 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] [2018-09-21 18:12:18,566 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:12:18,566 INFO L82 PathProgramCache]: Analyzing trace with hash -1242045531, now seen corresponding path program 1 times [2018-09-21 18:12:18,567 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:12:18,568 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-21 18:12:18,576 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:12:18,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:12:18,674 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:12:18,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:12:18,795 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:12:18,806 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:12:18,807 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-21 18:12:18,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-21 18:12:18,808 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-21 18:12:18,808 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-09-21 18:12:18,809 INFO L87 Difference]: Start difference. First operand 127 states and 153 transitions. Second operand 7 states. [2018-09-21 18:12:20,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:12:20,768 INFO L93 Difference]: Finished difference Result 133 states and 159 transitions. [2018-09-21 18:12:20,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-21 18:12:20,809 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 47 [2018-09-21 18:12:20,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:12:20,811 INFO L225 Difference]: With dead ends: 133 [2018-09-21 18:12:20,811 INFO L226 Difference]: Without dead ends: 133 [2018-09-21 18:12:20,812 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-09-21 18:12:20,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-09-21 18:12:20,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 131. [2018-09-21 18:12:20,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2018-09-21 18:12:20,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 157 transitions. [2018-09-21 18:12:20,823 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 157 transitions. Word has length 47 [2018-09-21 18:12:20,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:12:20,824 INFO L480 AbstractCegarLoop]: Abstraction has 131 states and 157 transitions. [2018-09-21 18:12:20,824 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-21 18:12:20,824 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 157 transitions. [2018-09-21 18:12:20,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-21 18:12:20,826 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:12:20,826 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] [2018-09-21 18:12:20,826 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:12:20,828 INFO L82 PathProgramCache]: Analyzing trace with hash -215187063, now seen corresponding path program 1 times [2018-09-21 18:12:20,829 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:12:20,829 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-21 18:12:20,833 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:12:20,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:12:20,946 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:12:21,009 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 18:12:21,023 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 18:12:21,024 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 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 27 treesize of output 35 [2018-09-21 18:12:21,066 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:12:21,083 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2018-09-21 18:12:21,084 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:12:21,133 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:12:21,154 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:12:21,154 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:28 [2018-09-21 18:12:21,313 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 42 treesize of output 33 [2018-09-21 18:12:21,321 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:12:21,334 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 29 [2018-09-21 18:12:21,335 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:12:21,356 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:12:21,381 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-21 18:12:21,381 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:51, output treesize:32 [2018-09-21 18:12:23,485 WARN L178 SmtUtils]: Spent 2.05 s on a formula simplification that was a NOOP. DAG size: 27 [2018-09-21 18:12:23,513 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 26 treesize of output 20 [2018-09-21 18:12:23,521 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:12:23,526 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 11 [2018-09-21 18:12:23,527 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:12:23,535 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:12:23,549 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:12:23,550 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:39, output treesize:18 [2018-09-21 18:12:24,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:12:24,276 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:12:24,292 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:12:24,292 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-21 18:12:24,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-21 18:12:24,293 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-21 18:12:24,293 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2018-09-21 18:12:24,293 INFO L87 Difference]: Start difference. First operand 131 states and 157 transitions. Second operand 14 states. [2018-09-21 18:12:25,863 WARN L178 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-09-21 18:12:32,166 WARN L178 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2018-09-21 18:12:39,152 WARN L178 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-09-21 18:12:40,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:12:40,187 INFO L93 Difference]: Finished difference Result 180 states and 221 transitions. [2018-09-21 18:12:40,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-21 18:12:40,226 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 48 [2018-09-21 18:12:40,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:12:40,228 INFO L225 Difference]: With dead ends: 180 [2018-09-21 18:12:40,228 INFO L226 Difference]: Without dead ends: 64 [2018-09-21 18:12:40,229 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=139, Invalid=673, Unknown=0, NotChecked=0, Total=812 [2018-09-21 18:12:40,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-09-21 18:12:40,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-09-21 18:12:40,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-09-21 18:12:40,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 63 transitions. [2018-09-21 18:12:40,235 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 63 transitions. Word has length 48 [2018-09-21 18:12:40,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:12:40,235 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 63 transitions. [2018-09-21 18:12:40,236 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-21 18:12:40,236 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 63 transitions. [2018-09-21 18:12:40,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-09-21 18:12:40,239 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:12:40,239 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:12:40,240 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:12:40,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1614544851, now seen corresponding path program 1 times [2018-09-21 18:12:40,240 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:12:40,240 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-21 18:12:40,248 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:12:40,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:12:40,393 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:12:40,588 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-21 18:12:40,594 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-21 18:12:40,594 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:12:40,600 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:12:40,613 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:12:40,613 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:12:40,680 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-21 18:12:40,684 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-21 18:12:40,684 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:12:40,687 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:12:40,696 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:12:40,696 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:12:40,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:12:40,967 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:12:40,977 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:12:40,978 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-21 18:12:40,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-21 18:12:40,978 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-21 18:12:40,978 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2018-09-21 18:12:40,979 INFO L87 Difference]: Start difference. First operand 64 states and 63 transitions. Second operand 14 states. [2018-09-21 18:12:42,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:12:42,847 INFO L93 Difference]: Finished difference Result 62 states and 61 transitions. [2018-09-21 18:12:42,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-21 18:12:42,848 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 63 [2018-09-21 18:12:42,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:12:42,849 INFO L225 Difference]: With dead ends: 62 [2018-09-21 18:12:42,849 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:12:42,850 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2018-09-21 18:12:42,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:12:42,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:12:42,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:12:42,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:12:42,851 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 63 [2018-09-21 18:12:42,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:12:42,851 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:12:42,852 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-21 18:12:42,852 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:12:42,852 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:12:42,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:12:42 BoogieIcfgContainer [2018-09-21 18:12:42,858 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:12:42,859 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:12:42,859 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:12:42,859 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:12:42,860 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:11:58" (3/4) ... [2018-09-21 18:12:42,864 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:12:42,871 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_double [2018-09-21 18:12:42,871 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:12:42,872 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure fmod_double [2018-09-21 18:12:42,872 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_double [2018-09-21 18:12:42,872 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:12:42,881 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2018-09-21 18:12:42,882 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-09-21 18:12:42,883 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-09-21 18:12:42,883 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-21 18:12:42,974 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:12:42,975 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:12:42,976 INFO L168 Benchmark]: Toolchain (without parser) took 48746.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 207.1 MB). Free memory was 951.8 MB in the beginning and 861.6 MB in the end (delta: 90.2 MB). Peak memory consumption was 297.3 MB. Max. memory is 11.5 GB. [2018-09-21 18:12:42,977 INFO L168 Benchmark]: CDTParser took 0.61 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:12:42,978 INFO L168 Benchmark]: CACSL2BoogieTranslator took 476.62 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:12:42,978 INFO L168 Benchmark]: Boogie Preprocessor took 90.51 ms. Allocated memory is still 1.0 GB. Free memory was 935.7 MB in the beginning and 930.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:12:42,979 INFO L168 Benchmark]: RCFGBuilder took 4156.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 930.4 MB in the beginning and 1.1 GB in the end (delta: -156.1 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:12:42,980 INFO L168 Benchmark]: TraceAbstraction took 43894.64 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 61.3 MB). Free memory was 1.1 GB in the beginning and 869.2 MB in the end (delta: 217.2 MB). Peak memory consumption was 278.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:12:42,981 INFO L168 Benchmark]: Witness Printer took 116.63 ms. Allocated memory is still 1.2 GB. Free memory was 869.2 MB in the beginning and 861.6 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:12:42,984 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61 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 476.62 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 90.51 ms. Allocated memory is still 1.0 GB. Free memory was 935.7 MB in the beginning and 930.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 4156.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 930.4 MB in the beginning and 1.1 GB in the end (delta: -156.1 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 43894.64 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 61.3 MB). Free memory was 1.1 GB in the beginning and 869.2 MB in the end (delta: 217.2 MB). Peak memory consumption was 278.6 MB. Max. memory is 11.5 GB. * Witness Printer took 116.63 ms. Allocated memory is still 1.2 GB. Free memory was 869.2 MB in the beginning and 861.6 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 191]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 135 locations, 1 error locations. SAFE Result, 43.8s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 33.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 614 SDtfs, 668 SDslu, 3184 SDs, 0 SdLazy, 1332 SolverSat, 67 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 24.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 259 GetRequests, 174 SyntacticMatches, 1 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 13.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 7.9s InterpolantComputationTime, 222 NumberOfCodeBlocks, 222 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 217 ConstructedInterpolants, 71 QuantifiedInterpolants, 109707 SizeOfPredicates, 42 NumberOfNonLiveVariables, 498 ConjunctsInSsa, 65 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...