/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1032b_true-unreach-call.c --full-output --architecture 32bit --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5eb3fea6 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1032b_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 7fdec7243d1dcfe44b7db1591097bb1f5b9c1d53 --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false ............................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1032b_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 7fdec7243d1dcfe44b7db1591097bb1f5b9c1d53 --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 18:37:55,629 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:37:55,630 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:37:55,642 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:37:55,643 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:37:55,644 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:37:55,645 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:37:55,647 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:37:55,649 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:37:55,650 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:37:55,651 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:37:55,652 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:37:55,653 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:37:55,654 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:37:55,655 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:37:55,656 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:37:55,657 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:37:55,659 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:37:55,664 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:37:55,666 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:37:55,667 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:37:55,668 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:37:55,675 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:37:55,676 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:37:55,676 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:37:55,677 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:37:55,678 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:37:55,684 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:37:55,685 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:37:55,690 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:37:55,690 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:37:55,691 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:37:55,691 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:37:55,692 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:37:55,693 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:37:55,693 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:37:55,694 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:37:55,710 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:37:55,710 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:37:55,711 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:37:55,711 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:37:55,712 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:37:55,712 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:37:55,712 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:37:55,712 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:37:55,713 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:37:55,713 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:37:55,714 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:37:55,714 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:37:55,714 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:37:55,714 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:37:55,714 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:37:55,715 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:37:55,715 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:37:55,715 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:37:55,715 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:37:55,715 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:37:55,717 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:37:55,717 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:37:55,717 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:37:55,717 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:37:55,717 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:37:55,718 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:37:55,718 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:37:55,718 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:37:55,718 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:37:55,718 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7fdec7243d1dcfe44b7db1591097bb1f5b9c1d53 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 18:37:55,771 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:37:55,786 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:37:55,790 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:37:55,791 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:37:55,792 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:37:55,792 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1032b_true-unreach-call.c [2018-09-21 18:37:56,153 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/191d9fe48/f901c4b92e764e99a3bfef1dddd3db56/FLAG2a8ee393e [2018-09-21 18:37:56,309 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:37:56,310 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1032b_true-unreach-call.c [2018-09-21 18:37:56,316 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/191d9fe48/f901c4b92e764e99a3bfef1dddd3db56/FLAG2a8ee393e [2018-09-21 18:37:56,332 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/191d9fe48/f901c4b92e764e99a3bfef1dddd3db56 [2018-09-21 18:37:56,336 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:37:56,339 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:37:56,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:37:56,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:37:56,349 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:37:56,349 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:37:56" (1/1) ... [2018-09-21 18:37:56,352 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69759c1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:56, skipping insertion in model container [2018-09-21 18:37:56,353 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:37:56" (1/1) ... [2018-09-21 18:37:56,365 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:37:56,577 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:37:56,594 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:37:56,610 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:37:56,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:56 WrapperNode [2018-09-21 18:37:56,643 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:37:56,644 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:37:56,646 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:37:56,646 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:37:56,663 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:56" (1/1) ... [2018-09-21 18:37:56,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:56" (1/1) ... [2018-09-21 18:37:56,678 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:56" (1/1) ... [2018-09-21 18:37:56,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:56" (1/1) ... [2018-09-21 18:37:56,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:56" (1/1) ... [2018-09-21 18:37:56,706 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:56" (1/1) ... [2018-09-21 18:37:56,708 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:56" (1/1) ... [2018-09-21 18:37:56,711 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:37:56,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:37:56,712 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:37:56,712 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:37:56,713 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:56" (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 18:37:56,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:37:56,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:37:56,779 INFO L138 BoogieDeclarations]: Found implementation of procedure round_float [2018-09-21 18:37:56,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-09-21 18:37:56,779 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:37:56,779 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:37:56,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:37:56,780 INFO L130 BoogieDeclarations]: Found specification of procedure round_float [2018-09-21 18:37:56,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:37:56,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:37:56,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:37:56,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:37:56,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:37:56,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:37:56,781 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-09-21 18:37:56,781 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:37:56,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:37:56,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:37:56,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:37:56,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:37:57,391 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:37:57,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:37:57 BoogieIcfgContainer [2018-09-21 18:37:57,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:37:57,393 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:37:57,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:37:57,397 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:37:57,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:37:56" (1/3) ... [2018-09-21 18:37:57,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66f7d734 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:37:57, skipping insertion in model container [2018-09-21 18:37:57,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:56" (2/3) ... [2018-09-21 18:37:57,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66f7d734 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:37:57, skipping insertion in model container [2018-09-21 18:37:57,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:37:57" (3/3) ... [2018-09-21 18:37:57,401 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032b_true-unreach-call.c [2018-09-21 18:37:57,412 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:37:57,423 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:37:57,468 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:37:57,469 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:37:57,469 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:37:57,469 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:37:57,469 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:37:57,469 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:37:57,469 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:37:57,470 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:37:57,470 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:37:57,487 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states. [2018-09-21 18:37:57,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-21 18:37:57,499 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:37:57,500 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:37:57,502 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:37:57,509 INFO L82 PathProgramCache]: Analyzing trace with hash -278214289, now seen corresponding path program 1 times [2018-09-21 18:37:57,511 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:37:57,511 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:37:57,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:37:57,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:37:57,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:37:57,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:37:57,652 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 18:37:57,655 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:37:57,655 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:37:57,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:37:57,672 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:37:57,673 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:37:57,675 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 2 states. [2018-09-21 18:37:57,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:37:57,696 INFO L93 Difference]: Finished difference Result 62 states and 67 transitions. [2018-09-21 18:37:57,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:37:57,698 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-09-21 18:37:57,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:37:57,710 INFO L225 Difference]: With dead ends: 62 [2018-09-21 18:37:57,710 INFO L226 Difference]: Without dead ends: 58 [2018-09-21 18:37:57,712 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 18:37:57,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-09-21 18:37:57,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-09-21 18:37:57,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-09-21 18:37:57,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 63 transitions. [2018-09-21 18:37:57,755 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 63 transitions. Word has length 18 [2018-09-21 18:37:57,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:37:57,755 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 63 transitions. [2018-09-21 18:37:57,755 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:37:57,756 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 63 transitions. [2018-09-21 18:37:57,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-09-21 18:37:57,757 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:37:57,757 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] [2018-09-21 18:37:57,758 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:37:57,758 INFO L82 PathProgramCache]: Analyzing trace with hash 1883281509, now seen corresponding path program 1 times [2018-09-21 18:37:57,758 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:37:57,758 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:37:57,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:37:57,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:37:57,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:37:57,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:37:57,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:37:57,871 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:37:57,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:37:57 BoogieIcfgContainer [2018-09-21 18:37:57,903 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:37:57,903 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:37:57,904 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:37:57,904 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:37:57,904 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:37:57" (3/4) ... [2018-09-21 18:37:57,909 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 18:37:57,909 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:37:57,910 INFO L168 Benchmark]: Toolchain (without parser) took 1573.06 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 946.5 MB in the beginning and 1.1 GB in the end (delta: -108.1 MB). Peak memory consumption was 7.3 MB. Max. memory is 11.5 GB. [2018-09-21 18:37:57,912 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:37:57,913 INFO L168 Benchmark]: CACSL2BoogieTranslator took 302.82 ms. Allocated memory is still 1.0 GB. Free memory was 946.5 MB in the beginning and 935.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:37:57,914 INFO L168 Benchmark]: Boogie Preprocessor took 67.19 ms. Allocated memory is still 1.0 GB. Free memory is still 935.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:37:57,914 INFO L168 Benchmark]: RCFGBuilder took 680.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -146.7 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:37:57,915 INFO L168 Benchmark]: TraceAbstraction took 509.58 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2018-09-21 18:37:57,916 INFO L168 Benchmark]: Witness Printer took 5.73 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:37:57,922 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 302.82 ms. Allocated memory is still 1.0 GB. Free memory was 946.5 MB in the beginning and 935.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 67.19 ms. Allocated memory is still 1.0 GB. Free memory is still 935.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 680.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -146.7 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 509.58 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. * Witness Printer took 5.73 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 80]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 79, overapproximation of bitwiseAnd at line 23, overapproximation of someUnaryFLOAToperation at line 75, overapproximation of someBinaryArithmeticFLOAToperation at line 43. Possible FailurePath: [L75] float x = -0.0f; [L76] CALL, EXPR round_float(x) VAL [\old(x)=8] [L13] __uint32_t w; [L15] int exponent_less_127; VAL [\old(x)=8, x=8] [L18] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=8, gf_u={5:0}, x=8] [L19] FCALL gf_u.value = (x) VAL [\old(x)=8, gf_u={5:0}, x=8] [L20] EXPR, FCALL gf_u.word VAL [\old(x)=8, gf_u={5:0}, gf_u.word=9, x=8] [L20] (w) = gf_u.word VAL [\old(x)=8, gf_u={5:0}, gf_u.word=9, w=9, x=8] [L20] FCALL (w) = gf_u.word VAL [(w) = gf_u.word=11, \old(x)=8, gf_u={5:0}, gf_u.word=9, w=9, x=8] [L21] COND FALSE !(0) VAL [\old(x)=8, w=9, x=8] [L23] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=8, exponent_less_127=128, w=9, x=8] [L25] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=8, exponent_less_127=128, w=9, x=8] [L41] COND TRUE exponent_less_127 == 128 [L43] RET return x + x; VAL [\old(x)=8, exponent_less_127=128, w=9, x=8] [L76] EXPR round_float(x) VAL [round_float(x)=7, x=8] [L76] float res = round_float(x); [L79] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [res=7, res == -0.0f && __signbit_float(res) == 1=0, x=8] [L79] COND FALSE, EXPR !(res == -0.0f && __signbit_float(res) == 1) VAL [res=7, res == -0.0f && __signbit_float(res) == 1=0, x=8] [L79] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L80] __VERIFIER_error() VAL [res=7, x=8] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 62 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 67 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=62occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:38:00,371 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:38:00,373 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:38:00,389 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:38:00,389 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:38:00,392 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:38:00,394 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:38:00,396 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:38:00,398 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:38:00,399 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:38:00,404 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:38:00,404 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:38:00,405 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:38:00,408 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:38:00,409 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:38:00,410 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:38:00,418 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:38:00,426 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:38:00,428 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:38:00,430 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:38:00,431 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:38:00,436 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:38:00,440 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:38:00,441 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:38:00,441 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:38:00,444 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:38:00,445 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:38:00,449 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:38:00,450 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:38:00,453 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:38:00,454 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:38:00,455 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:38:00,455 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:38:00,455 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:38:00,458 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:38:00,459 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:38:00,459 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:38:00,491 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:38:00,494 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:38:00,495 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:38:00,496 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:38:00,496 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:38:00,497 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:38:00,497 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:38:00,497 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:38:00,497 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:38:00,498 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:38:00,498 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:38:00,498 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:38:00,498 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:38:00,499 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:38:00,499 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:38:00,499 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:38:00,499 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:38:00,499 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:38:00,499 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:38:00,500 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:38:00,500 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:38:00,500 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:38:00,500 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:38:00,500 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:38:00,501 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:38:00,501 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:38:00,501 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:38:00,501 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:38:00,501 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:38:00,503 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:38:00,503 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:38:00,503 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 -> 7fdec7243d1dcfe44b7db1591097bb1f5b9c1d53 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 18:38:00,559 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:38:00,574 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:38:00,580 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:38:00,582 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:38:00,582 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:38:00,583 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1032b_true-unreach-call.c [2018-09-21 18:38:00,965 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cde5d6945/a35e078424cd47fa9ded730677e68bef/FLAG6a088c2d2 [2018-09-21 18:38:01,125 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:38:01,126 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1032b_true-unreach-call.c [2018-09-21 18:38:01,133 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cde5d6945/a35e078424cd47fa9ded730677e68bef/FLAG6a088c2d2 [2018-09-21 18:38:01,149 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cde5d6945/a35e078424cd47fa9ded730677e68bef [2018-09-21 18:38:01,153 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:38:01,157 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:38:01,158 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:38:01,158 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:38:01,165 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:38:01,166 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:38:01" (1/1) ... [2018-09-21 18:38:01,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cba804d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:01, skipping insertion in model container [2018-09-21 18:38:01,171 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:38:01" (1/1) ... [2018-09-21 18:38:01,183 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:38:01,461 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:38:01,485 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:38:01,518 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:38:01,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:01 WrapperNode [2018-09-21 18:38:01,568 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:38:01,569 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:38:01,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:38:01,569 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:38:01,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:01" (1/1) ... [2018-09-21 18:38:01,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:01" (1/1) ... [2018-09-21 18:38:01,612 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:01" (1/1) ... [2018-09-21 18:38:01,612 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:01" (1/1) ... [2018-09-21 18:38:01,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:01" (1/1) ... [2018-09-21 18:38:01,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:01" (1/1) ... [2018-09-21 18:38:01,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:01" (1/1) ... [2018-09-21 18:38:01,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:38:01,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:38:01,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:38:01,656 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:38:01,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:01" (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 18:38:01,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:38:01,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:38:01,806 INFO L138 BoogieDeclarations]: Found implementation of procedure round_float [2018-09-21 18:38:01,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-09-21 18:38:01,806 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:38:01,806 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:38:01,806 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:38:01,806 INFO L130 BoogieDeclarations]: Found specification of procedure round_float [2018-09-21 18:38:01,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:38:01,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-21 18:38:01,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:38:01,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:38:01,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:38:01,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-21 18:38:01,807 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-09-21 18:38:01,808 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:38:01,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:38:01,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:38:01,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-21 18:38:01,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:38:02,282 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:38:02,321 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:38:02,398 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:38:02,421 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:38:02,449 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:38:02,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:38:02 BoogieIcfgContainer [2018-09-21 18:38:02,450 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:38:02,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:38:02,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:38:02,456 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:38:02,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:38:01" (1/3) ... [2018-09-21 18:38:02,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cbc5a62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:38:02, skipping insertion in model container [2018-09-21 18:38:02,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:38:01" (2/3) ... [2018-09-21 18:38:02,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cbc5a62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:38:02, skipping insertion in model container [2018-09-21 18:38:02,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:38:02" (3/3) ... [2018-09-21 18:38:02,462 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032b_true-unreach-call.c [2018-09-21 18:38:02,473 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:38:02,484 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:38:02,530 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:38:02,530 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:38:02,531 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:38:02,531 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:38:02,531 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:38:02,531 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:38:02,532 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:38:02,532 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:38:02,532 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:38:02,550 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states. [2018-09-21 18:38:02,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-21 18:38:02,561 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:38:02,563 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:38:02,565 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:38:02,571 INFO L82 PathProgramCache]: Analyzing trace with hash -278214289, now seen corresponding path program 1 times [2018-09-21 18:38:02,576 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:38:02,577 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 18:38:02,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:38:02,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:38:02,659 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:38:02,677 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 18:38:02,677 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:38:02,691 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:38:02,691 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:38:02,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:38:02,707 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:38:02,708 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:38:02,710 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 2 states. [2018-09-21 18:38:02,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:38:02,729 INFO L93 Difference]: Finished difference Result 62 states and 67 transitions. [2018-09-21 18:38:02,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:38:02,731 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-09-21 18:38:02,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:38:02,743 INFO L225 Difference]: With dead ends: 62 [2018-09-21 18:38:02,744 INFO L226 Difference]: Without dead ends: 58 [2018-09-21 18:38:02,746 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 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 18:38:02,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-09-21 18:38:02,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-09-21 18:38:02,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-09-21 18:38:02,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 63 transitions. [2018-09-21 18:38:02,792 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 63 transitions. Word has length 18 [2018-09-21 18:38:02,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:38:02,792 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 63 transitions. [2018-09-21 18:38:02,793 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:38:02,793 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 63 transitions. [2018-09-21 18:38:02,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-09-21 18:38:02,794 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:38:02,794 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] [2018-09-21 18:38:02,794 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:38:02,795 INFO L82 PathProgramCache]: Analyzing trace with hash 1883281509, now seen corresponding path program 1 times [2018-09-21 18:38:02,795 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:38:02,795 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 18:38:02,803 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:38:02,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:38:02,880 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:38:03,030 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:38:03,040 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:38:03,040 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:38:03,053 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:38:03,133 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:38:03,134 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:38:03,260 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:38:03,277 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:38:03,277 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:38:03,302 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:38:03,328 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:38:03,329 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:38:03,576 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 18:38:03,576 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:38:03,591 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:38:03,591 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:38:03,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:38:03,594 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:38:03,594 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:38:03,595 INFO L87 Difference]: Start difference. First operand 58 states and 63 transitions. Second operand 9 states. [2018-09-21 18:38:05,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:38:05,388 INFO L93 Difference]: Finished difference Result 62 states and 66 transitions. [2018-09-21 18:38:05,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-21 18:38:05,391 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2018-09-21 18:38:05,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:38:05,395 INFO L225 Difference]: With dead ends: 62 [2018-09-21 18:38:05,395 INFO L226 Difference]: Without dead ends: 59 [2018-09-21 18:38:05,397 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2018-09-21 18:38:05,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-09-21 18:38:05,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 57. [2018-09-21 18:38:05,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-09-21 18:38:05,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 60 transitions. [2018-09-21 18:38:05,407 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 60 transitions. Word has length 27 [2018-09-21 18:38:05,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:38:05,407 INFO L480 AbstractCegarLoop]: Abstraction has 57 states and 60 transitions. [2018-09-21 18:38:05,407 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:38:05,409 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 60 transitions. [2018-09-21 18:38:05,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-21 18:38:05,411 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:38:05,411 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:38:05,411 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:38:05,412 INFO L82 PathProgramCache]: Analyzing trace with hash -1105276264, now seen corresponding path program 1 times [2018-09-21 18:38:05,414 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:38:05,415 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) [2018-09-21 18:38:05,430 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-21 18:38:05,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:38:05,482 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:38:05,620 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:38:05,625 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:38:05,625 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:38:05,638 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:38:05,679 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:38:05,680 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:38:05,701 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:38:05,707 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:38:05,707 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:38:05,711 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:38:05,714 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:38:05,715 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:38:05,853 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 18:38:05,853 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:38:05,867 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:38:05,867 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:38:05,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:38:05,868 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:38:05,868 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:38:05,873 INFO L87 Difference]: Start difference. First operand 57 states and 60 transitions. Second operand 9 states. [2018-09-21 18:38:06,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:38:06,977 INFO L93 Difference]: Finished difference Result 72 states and 73 transitions. [2018-09-21 18:38:06,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-21 18:38:06,978 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2018-09-21 18:38:06,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:38:06,980 INFO L225 Difference]: With dead ends: 72 [2018-09-21 18:38:06,980 INFO L226 Difference]: Without dead ends: 56 [2018-09-21 18:38:06,981 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2018-09-21 18:38:06,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-09-21 18:38:06,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-09-21 18:38:06,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-09-21 18:38:06,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 57 transitions. [2018-09-21 18:38:06,987 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 57 transitions. Word has length 28 [2018-09-21 18:38:06,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:38:06,988 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 57 transitions. [2018-09-21 18:38:06,988 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:38:06,988 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 57 transitions. [2018-09-21 18:38:06,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-09-21 18:38:06,989 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:38:06,989 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:38:06,990 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:38:06,990 INFO L82 PathProgramCache]: Analyzing trace with hash -663286814, now seen corresponding path program 1 times [2018-09-21 18:38:06,990 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:38:06,991 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 18:38:07,000 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:38:07,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:38:07,042 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:38:07,085 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:38:07,092 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:38:07,093 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:38:07,122 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:38:07,134 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:38:07,134 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:38:07,163 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:38:07,169 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:38:07,169 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:38:07,174 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:38:07,176 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:38:07,177 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:38:07,378 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 18:38:07,378 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:38:07,388 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:38:07,388 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:38:07,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:38:07,390 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:38:07,390 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:38:07,390 INFO L87 Difference]: Start difference. First operand 56 states and 57 transitions. Second operand 9 states. [2018-09-21 18:38:08,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:38:08,373 INFO L93 Difference]: Finished difference Result 69 states and 69 transitions. [2018-09-21 18:38:08,373 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-21 18:38:08,374 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 39 [2018-09-21 18:38:08,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:38:08,376 INFO L225 Difference]: With dead ends: 69 [2018-09-21 18:38:08,376 INFO L226 Difference]: Without dead ends: 56 [2018-09-21 18:38:08,377 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2018-09-21 18:38:08,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-09-21 18:38:08,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-09-21 18:38:08,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-09-21 18:38:08,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 56 transitions. [2018-09-21 18:38:08,382 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 56 transitions. Word has length 39 [2018-09-21 18:38:08,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:38:08,383 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 56 transitions. [2018-09-21 18:38:08,383 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:38:08,383 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 56 transitions. [2018-09-21 18:38:08,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-09-21 18:38:08,384 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:38:08,384 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:38:08,385 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:38:08,385 INFO L82 PathProgramCache]: Analyzing trace with hash 1637535776, now seen corresponding path program 1 times [2018-09-21 18:38:08,385 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:38:08,386 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 18:38:08,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:38:08,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:38:08,435 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:38:08,461 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 13 treesize of output 10 [2018-09-21 18:38:08,464 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-09-21 18:38:08,465 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:38:08,472 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:38:08,475 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 18:38:08,476 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:9 [2018-09-21 18:38:08,494 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 31 treesize of output 23 [2018-09-21 18:38:08,503 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 23 treesize of output 15 [2018-09-21 18:38:08,504 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:38:08,506 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:38:08,511 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 18:38:08,511 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:31, output treesize:15 [2018-09-21 18:38:08,627 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 18:38:08,627 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:38:08,639 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:38:08,639 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:38:08,640 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:38:08,640 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:38:08,640 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:38:08,640 INFO L87 Difference]: Start difference. First operand 56 states and 56 transitions. Second operand 9 states. [2018-09-21 18:38:09,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:38:09,027 INFO L93 Difference]: Finished difference Result 56 states and 55 transitions. [2018-09-21 18:38:09,029 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 18:38:09,029 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 39 [2018-09-21 18:38:09,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:38:09,030 INFO L225 Difference]: With dead ends: 56 [2018-09-21 18:38:09,030 INFO L226 Difference]: Without dead ends: 56 [2018-09-21 18:38:09,031 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2018-09-21 18:38:09,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-09-21 18:38:09,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-09-21 18:38:09,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-09-21 18:38:09,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 55 transitions. [2018-09-21 18:38:09,038 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 55 transitions. Word has length 39 [2018-09-21 18:38:09,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:38:09,038 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 55 transitions. [2018-09-21 18:38:09,038 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:38:09,039 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 55 transitions. [2018-09-21 18:38:09,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-09-21 18:38:09,040 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:38:09,040 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:38:09,042 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:38:09,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1231012154, now seen corresponding path program 1 times [2018-09-21 18:38:09,044 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:38:09,044 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-09-21 18:38:09,053 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:38:09,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:38:09,116 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:38:09,151 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:38:09,159 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:38:09,160 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:38:09,164 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:38:09,175 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:38:09,176 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:38:09,199 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:38:09,202 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:38:09,203 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:38:09,206 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:38:09,209 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:38:09,210 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:38:09,289 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 13 treesize of output 10 [2018-09-21 18:38:09,297 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 10 treesize of output 9 [2018-09-21 18:38:09,298 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:38:09,301 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:38:09,312 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 18:38:09,313 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:19 [2018-09-21 18:38:09,361 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 31 treesize of output 23 [2018-09-21 18:38:09,366 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 23 treesize of output 15 [2018-09-21 18:38:09,367 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:38:09,371 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:38:09,386 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 18:38:09,387 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:40, output treesize:25 [2018-09-21 18:38:09,781 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:38:09,787 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:38:09,788 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:38:09,792 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:38:09,827 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:38:09,828 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:38:09,933 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:38:09,937 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:38:09,938 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:38:09,943 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:38:09,946 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:38:09,946 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:38:10,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:38:10,471 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:38:10,489 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:38:10,490 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-09-21 18:38:10,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-09-21 18:38:10,490 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-09-21 18:38:10,492 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2018-09-21 18:38:10,492 INFO L87 Difference]: Start difference. First operand 56 states and 55 transitions. Second operand 21 states. [2018-09-21 18:38:11,568 WARN L178 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-21 18:38:13,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:38:13,583 INFO L93 Difference]: Finished difference Result 54 states and 53 transitions. [2018-09-21 18:38:13,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-09-21 18:38:13,584 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 55 [2018-09-21 18:38:13,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:38:13,585 INFO L225 Difference]: With dead ends: 54 [2018-09-21 18:38:13,585 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:38:13,587 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=163, Invalid=1559, Unknown=0, NotChecked=0, Total=1722 [2018-09-21 18:38:13,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:38:13,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:38:13,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:38:13,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:38:13,588 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 55 [2018-09-21 18:38:13,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:38:13,588 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:38:13,588 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-09-21 18:38:13,588 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:38:13,589 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:38:13,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:38:13 BoogieIcfgContainer [2018-09-21 18:38:13,595 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:38:13,596 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:38:13,596 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:38:13,596 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:38:13,596 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:38:02" (3/4) ... [2018-09-21 18:38:13,600 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:38:13,606 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:38:13,606 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure round_float [2018-09-21 18:38:13,606 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:38:13,606 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-09-21 18:38:13,612 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2018-09-21 18:38:13,612 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-09-21 18:38:13,613 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-21 18:38:13,669 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:38:13,670 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:38:13,670 INFO L168 Benchmark]: Toolchain (without parser) took 12516.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 207.1 MB). Free memory was 950.8 MB in the beginning and 1.0 GB in the end (delta: -75.3 MB). Peak memory consumption was 131.8 MB. Max. memory is 11.5 GB. [2018-09-21 18:38:13,672 INFO L168 Benchmark]: CDTParser took 0.20 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 18:38:13,673 INFO L168 Benchmark]: CACSL2BoogieTranslator took 410.63 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:38:13,673 INFO L168 Benchmark]: Boogie Preprocessor took 85.77 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:38:13,674 INFO L168 Benchmark]: RCFGBuilder took 794.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -183.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2018-09-21 18:38:13,676 INFO L168 Benchmark]: TraceAbstraction took 11144.55 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 59.8 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 83.2 MB). Peak memory consumption was 142.9 MB. Max. memory is 11.5 GB. [2018-09-21 18:38:13,677 INFO L168 Benchmark]: Witness Printer took 74.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. [2018-09-21 18:38:13,682 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 410.63 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 85.77 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 794.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -183.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 11144.55 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 59.8 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 83.2 MB). Peak memory consumption was 142.9 MB. Max. memory is 11.5 GB. * Witness Printer took 74.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 80]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 62 locations, 1 error locations. SAFE Result, 11.0s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 7.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 299 SDtfs, 238 SDslu, 1684 SDs, 0 SdLazy, 733 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 254 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 6.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=62occurred 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, 6 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 206 NumberOfCodeBlocks, 206 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 200 ConstructedInterpolants, 59 QuantifiedInterpolants, 73549 SizeOfPredicates, 51 NumberOfNonLiveVariables, 406 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...