/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1092a_true-unreach-call.c --full-output --architecture 32bit --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5eb3fea6 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1092a_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 8be2489bdcd97218605067fa4593696f9050abdf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false .................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1092a_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 8be2489bdcd97218605067fa4593696f9050abdf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:11:08,474 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:11:08,475 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:11:08,488 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:11:08,489 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:11:08,490 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:11:08,491 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:11:08,493 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:11:08,495 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:11:08,496 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:11:08,497 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:11:08,498 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:11:08,500 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:11:08,501 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:11:08,504 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:11:08,505 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:11:08,506 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:11:08,510 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:11:08,518 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:11:08,520 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:11:08,521 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:11:08,522 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:11:08,525 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:11:08,525 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:11:08,525 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:11:08,526 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:11:08,527 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:11:08,528 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:11:08,529 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:11:08,530 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:11:08,530 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:11:08,531 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:11:08,531 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:11:08,532 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:11:08,533 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:11:08,534 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:11:08,534 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:11:08,550 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:11:08,550 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:11:08,551 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:11:08,551 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:11:08,552 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:11:08,552 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:11:08,552 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:11:08,552 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:11:08,552 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:11:08,553 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:11:08,553 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:11:08,553 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:11:08,553 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:11:08,553 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:11:08,554 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:11:08,554 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:11:08,554 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:11:08,554 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:11:08,554 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:11:08,555 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:11:08,555 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:11:08,555 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:11:08,555 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:11:08,555 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:11:08,555 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:11:08,556 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:11:08,556 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:11:08,556 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:11:08,556 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:11:08,556 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 -> 8be2489bdcd97218605067fa4593696f9050abdf Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:11:08,612 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:11:08,624 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:11:08,629 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:11:08,630 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:11:08,631 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:11:08,632 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1092a_true-unreach-call.c [2018-09-21 18:11:08,977 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb393d0d8/b167bcb0f33042529f5db67fb370bfe9/FLAG75cf5ff31 [2018-09-21 18:11:09,110 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:11:09,110 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1092a_true-unreach-call.c [2018-09-21 18:11:09,118 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb393d0d8/b167bcb0f33042529f5db67fb370bfe9/FLAG75cf5ff31 [2018-09-21 18:11:09,135 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb393d0d8/b167bcb0f33042529f5db67fb370bfe9 [2018-09-21 18:11:09,140 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:11:09,143 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:11:09,145 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:11:09,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:11:09,152 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:11:09,152 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:11:09" (1/1) ... [2018-09-21 18:11:09,155 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@548c2773 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:09, skipping insertion in model container [2018-09-21 18:11:09,156 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:11:09" (1/1) ... [2018-09-21 18:11:09,167 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:11:09,391 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:11:09,409 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:11:09,434 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:11:09,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:09 WrapperNode [2018-09-21 18:11:09,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:11:09,465 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:11:09,465 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:11:09,465 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:11:09,488 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:09" (1/1) ... [2018-09-21 18:11:09,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:09" (1/1) ... [2018-09-21 18:11:09,505 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:09" (1/1) ... [2018-09-21 18:11:09,505 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:09" (1/1) ... [2018-09-21 18:11:09,523 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:09" (1/1) ... [2018-09-21 18:11:09,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:09" (1/1) ... [2018-09-21 18:11:09,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:09" (1/1) ... [2018-09-21 18:11:09,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:11:09,551 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:11:09,551 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:11:09,551 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:11:09,552 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:11:09,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:11:09,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:11:09,621 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-21 18:11:09,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2018-09-21 18:11:09,621 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:11:09,621 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:11:09,621 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-21 18:11:09,621 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2018-09-21 18:11:09,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:11:09,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:11:09,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:11:09,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:11:09,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:11:09,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:11:09,623 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:11:09,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:11:09,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:11:09,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:11:09,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:11:10,270 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:11:10,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:11:10 BoogieIcfgContainer [2018-09-21 18:11:10,271 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:11:10,272 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:11:10,272 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:11:10,276 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:11:10,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:11:09" (1/3) ... [2018-09-21 18:11:10,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ba3e3e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:11:10, skipping insertion in model container [2018-09-21 18:11:10,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:09" (2/3) ... [2018-09-21 18:11:10,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ba3e3e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:11:10, skipping insertion in model container [2018-09-21 18:11:10,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:11:10" (3/3) ... [2018-09-21 18:11:10,279 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092a_true-unreach-call.c [2018-09-21 18:11:10,289 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:11:10,298 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:11:10,342 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:11:10,343 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:11:10,343 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:11:10,343 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:11:10,343 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:11:10,344 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:11:10,344 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:11:10,344 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:11:10,344 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:11:10,360 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2018-09-21 18:11:10,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-21 18:11:10,372 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:11:10,373 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 18:11:10,375 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:11:10,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1001944266, now seen corresponding path program 1 times [2018-09-21 18:11:10,383 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:11:10,383 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:11:10,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:11:10,433 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:11:10,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:11:10,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:11:10,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:11:10,516 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:11:10,517 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:11:10,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:11:10,536 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:11:10,537 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:11:10,539 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 2 states. [2018-09-21 18:11:10,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:11:10,559 INFO L93 Difference]: Finished difference Result 64 states and 78 transitions. [2018-09-21 18:11:10,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:11:10,561 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-09-21 18:11:10,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:11:10,573 INFO L225 Difference]: With dead ends: 64 [2018-09-21 18:11:10,573 INFO L226 Difference]: Without dead ends: 60 [2018-09-21 18:11:10,575 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:11:10,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-09-21 18:11:10,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-09-21 18:11:10,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-09-21 18:11:10,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 74 transitions. [2018-09-21 18:11:10,617 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 74 transitions. Word has length 18 [2018-09-21 18:11:10,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:11:10,617 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 74 transitions. [2018-09-21 18:11:10,617 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:11:10,617 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 74 transitions. [2018-09-21 18:11:10,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-21 18:11:10,619 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:11:10,619 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:11:10,620 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:11:10,620 INFO L82 PathProgramCache]: Analyzing trace with hash -262001498, now seen corresponding path program 1 times [2018-09-21 18:11:10,620 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:11:10,620 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:11:10,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:11:10,622 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:11:10,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:11:10,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:11:10,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:11:10,724 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:11:10,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:11:10 BoogieIcfgContainer [2018-09-21 18:11:10,759 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:11:10,759 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:11:10,759 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:11:10,760 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:11:10,760 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:11:10" (3/4) ... [2018-09-21 18:11:10,764 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 18:11:10,766 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:11:10,766 INFO L168 Benchmark]: Toolchain (without parser) took 1625.64 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 951.8 MB in the beginning and 1.1 GB in the end (delta: -106.1 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:10,768 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 18:11:10,769 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.95 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:10,769 INFO L168 Benchmark]: Boogie Preprocessor took 85.72 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:10,770 INFO L168 Benchmark]: RCFGBuilder took 719.96 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -143.4 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:10,771 INFO L168 Benchmark]: TraceAbstraction took 486.64 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:10,772 INFO L168 Benchmark]: Witness Printer took 6.50 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 18:11:10,777 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 319.95 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 85.72 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 719.96 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -143.4 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 486.64 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * Witness Printer took 6.50 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: 96]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 57, overapproximation of someUnaryDOUBLEoperation at line 91, overapproximation of bitwiseAnd at line 58, overapproximation of someBinaryDOUBLEComparisonOperation at line 95. Possible FailurePath: [L17] static const double huge_ceil = 1.0e300; VAL [\old(huge_ceil)=6442450947, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L91] double x = -0.0; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L92] CALL, EXPR ceil_double(x) VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L20] __int32_t i0, i1, j0; [L21] __uint32_t i, j; VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450949] [L23] FCALL ieee_double_shape_type ew_u; VAL [\old(x)=6442450949, ew_u={6442450950:0}, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450949] [L24] FCALL ew_u.value = (x) VAL [\old(x)=6442450949, ew_u={6442450950:0}, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450949] [L25] EXPR, FCALL ew_u.parts.msw VAL [\old(x)=6442450949, ew_u={6442450950:0}, ew_u.parts.msw=6442450944, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450949] [L25] (i0) = ew_u.parts.msw VAL [\old(x)=6442450949, ew_u={6442450950:0}, ew_u.parts.msw=6442450944, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, x=6442450949] [L25] FCALL (i0) = ew_u.parts.msw VAL [(i0) = ew_u.parts.msw=6442450948, \old(x)=6442450949, ew_u={6442450950:0}, ew_u.parts.msw=6442450944, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, x=6442450949] [L26] EXPR, FCALL ew_u.parts.lsw VAL [\old(x)=6442450949, ew_u={6442450950:0}, ew_u.parts.lsw=3, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, x=6442450949] [L26] (i1) = ew_u.parts.lsw VAL [\old(x)=6442450949, ew_u={6442450950:0}, ew_u.parts.lsw=3, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=3, x=6442450949] [L26] FCALL (i1) = ew_u.parts.lsw VAL [(i1) = ew_u.parts.lsw=6442450946, \old(x)=6442450949, ew_u={6442450950:0}, ew_u.parts.lsw=3, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=3, x=6442450949] [L27] COND FALSE !(0) VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=3, x=6442450949] [L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=3, x=6442450949] [L29] COND FALSE !(j0 < 20) VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=3, j0=20, x=6442450949] [L51] COND FALSE !(j0 > 51) [L57] i = ((__uint32_t)(0xffffffff)) >> (j0 - 20) VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=3, j0=20, x=6442450949] [L58] COND TRUE (i1 & i) == 0 [L59] RET return x; VAL [\old(x)=6442450949, \result=6442450949, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=3, j0=20, x=6442450949] [L92] EXPR ceil_double(x) VAL [ceil_double(x)=6442450949, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450949] [L92] double res = ceil_double(x); [L95] COND TRUE res != x VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=6442450949, x=6442450949] [L96] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=6442450949, x=6442450949] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 67 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 78 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=64occurred 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, 49 NumberOfCodeBlocks, 49 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 18:11:13,214 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:11:13,216 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:11:13,228 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:11:13,228 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:11:13,230 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:11:13,231 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:11:13,233 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:11:13,235 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:11:13,236 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:11:13,237 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:11:13,237 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:11:13,238 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:11:13,239 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:11:13,240 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:11:13,241 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:11:13,242 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:11:13,244 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:11:13,246 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:11:13,247 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:11:13,249 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:11:13,250 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:11:13,253 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:11:13,253 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:11:13,253 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:11:13,254 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:11:13,255 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:11:13,256 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:11:13,257 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:11:13,258 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:11:13,259 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:11:13,260 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:11:13,260 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:11:13,260 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:11:13,261 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:11:13,262 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:11:13,262 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:11:13,279 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:11:13,279 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:11:13,280 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:11:13,281 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:11:13,281 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:11:13,282 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:11:13,282 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:11:13,282 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:11:13,282 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:11:13,283 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:11:13,283 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:11:13,283 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:11:13,283 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:11:13,284 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:11:13,284 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:11:13,284 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:11:13,284 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:11:13,285 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:11:13,285 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:11:13,285 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:11:13,286 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:11:13,286 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:11:13,286 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:11:13,286 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:11:13,287 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:11:13,287 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:11:13,287 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:11:13,287 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:11:13,288 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:11:13,288 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:11:13,288 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:11:13,288 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 -> 8be2489bdcd97218605067fa4593696f9050abdf Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:11:13,343 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:11:13,358 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:11:13,364 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:11:13,366 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:11:13,367 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:11:13,368 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1092a_true-unreach-call.c [2018-09-21 18:11:13,724 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70987f8c8/6384b544287b4991ad7a51a8cb4e89a5/FLAGf5ca22f84 [2018-09-21 18:11:13,895 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:11:13,896 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1092a_true-unreach-call.c [2018-09-21 18:11:13,903 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70987f8c8/6384b544287b4991ad7a51a8cb4e89a5/FLAGf5ca22f84 [2018-09-21 18:11:13,918 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70987f8c8/6384b544287b4991ad7a51a8cb4e89a5 [2018-09-21 18:11:13,921 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:11:13,924 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:11:13,926 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:11:13,926 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:11:13,933 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:11:13,934 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:11:13" (1/1) ... [2018-09-21 18:11:13,937 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c686bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:13, skipping insertion in model container [2018-09-21 18:11:13,937 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:11:13" (1/1) ... [2018-09-21 18:11:13,950 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:11:14,238 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:11:14,259 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:11:14,285 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:11:14,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:14 WrapperNode [2018-09-21 18:11:14,338 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:11:14,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:11:14,340 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:11:14,340 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:11:14,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:14" (1/1) ... [2018-09-21 18:11:14,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:14" (1/1) ... [2018-09-21 18:11:14,382 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:14" (1/1) ... [2018-09-21 18:11:14,389 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:14" (1/1) ... [2018-09-21 18:11:14,409 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:14" (1/1) ... [2018-09-21 18:11:14,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:14" (1/1) ... [2018-09-21 18:11:14,427 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:14" (1/1) ... [2018-09-21 18:11:14,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:11:14,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:11:14,441 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:11:14,442 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:11:14,443 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:11:14,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:11:14,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:11:14,606 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-21 18:11:14,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2018-09-21 18:11:14,606 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:11:14,606 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:11:14,606 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-21 18:11:14,607 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2018-09-21 18:11:14,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:11:14,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-21 18:11:14,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:11:14,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:11:14,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:11:14,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-21 18:11:14,608 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:11:14,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:11:14,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:11:14,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-21 18:11:14,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:11:14,899 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:11:14,956 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:11:15,013 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:11:16,521 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:11:16,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:11:16 BoogieIcfgContainer [2018-09-21 18:11:16,522 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:11:16,523 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:11:16,523 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:11:16,526 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:11:16,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:11:13" (1/3) ... [2018-09-21 18:11:16,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d404226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:11:16, skipping insertion in model container [2018-09-21 18:11:16,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:14" (2/3) ... [2018-09-21 18:11:16,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d404226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:11:16, skipping insertion in model container [2018-09-21 18:11:16,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:11:16" (3/3) ... [2018-09-21 18:11:16,530 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092a_true-unreach-call.c [2018-09-21 18:11:16,539 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:11:16,548 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:11:16,588 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:11:16,589 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:11:16,589 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:11:16,589 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:11:16,589 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:11:16,589 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:11:16,590 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:11:16,590 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:11:16,591 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:11:16,606 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2018-09-21 18:11:16,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-21 18:11:16,619 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:11:16,621 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 18:11:16,626 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:11:16,632 INFO L82 PathProgramCache]: Analyzing trace with hash 1001944266, now seen corresponding path program 1 times [2018-09-21 18:11:16,637 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:11:16,637 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-21 18:11:16,648 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:11:16,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:11:16,713 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:11:16,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:11:16,735 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:11:16,750 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:11:16,751 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:11:16,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:11:16,767 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:11:16,768 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:11:16,770 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 2 states. [2018-09-21 18:11:16,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:11:16,789 INFO L93 Difference]: Finished difference Result 64 states and 78 transitions. [2018-09-21 18:11:16,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:11:16,791 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-09-21 18:11:16,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:11:16,802 INFO L225 Difference]: With dead ends: 64 [2018-09-21 18:11:16,802 INFO L226 Difference]: Without dead ends: 60 [2018-09-21 18:11:16,804 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 18:11:16,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-09-21 18:11:16,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-09-21 18:11:16,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-09-21 18:11:16,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 74 transitions. [2018-09-21 18:11:16,846 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 74 transitions. Word has length 18 [2018-09-21 18:11:16,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:11:16,846 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 74 transitions. [2018-09-21 18:11:16,846 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:11:16,846 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 74 transitions. [2018-09-21 18:11:16,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-21 18:11:16,848 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:11:16,848 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:11:16,848 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:11:16,849 INFO L82 PathProgramCache]: Analyzing trace with hash -262001498, now seen corresponding path program 1 times [2018-09-21 18:11:16,849 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:11:16,849 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 18:11:16,858 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:11:16,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:11:16,938 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:11:17,058 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-21 18:11:17,070 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-21 18:11:17,070 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:11:17,097 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:17,159 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 18:11:17,160 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:11:17,213 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-21 18:11:17,220 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-21 18:11:17,220 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:11:17,225 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:17,244 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 18:11:17,245 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:11:17,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:11:17,847 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:11:17,861 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:11:17,861 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:11:17,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:11:17,866 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:11:17,866 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:11:17,867 INFO L87 Difference]: Start difference. First operand 60 states and 74 transitions. Second operand 9 states. [2018-09-21 18:11:26,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:11:26,441 INFO L93 Difference]: Finished difference Result 112 states and 123 transitions. [2018-09-21 18:11:26,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-21 18:11:26,443 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2018-09-21 18:11:26,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:11:26,447 INFO L225 Difference]: With dead ends: 112 [2018-09-21 18:11:26,447 INFO L226 Difference]: Without dead ends: 69 [2018-09-21 18:11:26,448 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2018-09-21 18:11:26,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-09-21 18:11:26,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 51. [2018-09-21 18:11:26,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-09-21 18:11:26,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 57 transitions. [2018-09-21 18:11:26,458 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 57 transitions. Word has length 31 [2018-09-21 18:11:26,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:11:26,458 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 57 transitions. [2018-09-21 18:11:26,458 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:11:26,459 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 57 transitions. [2018-09-21 18:11:26,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-21 18:11:26,460 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:11:26,460 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:11:26,460 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:11:26,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1963531185, now seen corresponding path program 1 times [2018-09-21 18:11:26,461 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:11:26,461 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-21 18:11:26,467 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:11:26,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:11:26,538 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:11:26,574 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-21 18:11:26,580 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-21 18:11:26,580 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:11:26,585 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:26,599 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 18:11:26,600 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:11:26,645 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-21 18:11:26,650 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-21 18:11:26,651 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:11:26,656 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:26,703 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 18:11:26,704 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:11:26,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:11:26,942 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:11:26,953 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:11:26,954 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:11:26,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:11:26,955 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:11:26,955 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:11:26,955 INFO L87 Difference]: Start difference. First operand 51 states and 57 transitions. Second operand 9 states. [2018-09-21 18:11:32,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:11:32,009 INFO L93 Difference]: Finished difference Result 99 states and 102 transitions. [2018-09-21 18:11:32,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-21 18:11:32,011 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2018-09-21 18:11:32,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:11:32,012 INFO L225 Difference]: With dead ends: 99 [2018-09-21 18:11:32,012 INFO L226 Difference]: Without dead ends: 62 [2018-09-21 18:11:32,013 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2018-09-21 18:11:32,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-09-21 18:11:32,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 47. [2018-09-21 18:11:32,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-09-21 18:11:32,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 49 transitions. [2018-09-21 18:11:32,021 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 49 transitions. Word has length 31 [2018-09-21 18:11:32,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:11:32,022 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 49 transitions. [2018-09-21 18:11:32,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:11:32,022 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions. [2018-09-21 18:11:32,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-09-21 18:11:32,023 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:11:32,024 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] [2018-09-21 18:11:32,024 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:11:32,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1759812404, now seen corresponding path program 1 times [2018-09-21 18:11:32,025 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:11:32,025 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 18:11:32,033 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:11:32,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:11:32,172 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:11:35,319 WARN L178 SmtUtils]: Spent 1.39 s on a formula simplification that was a NOOP. DAG size: 11 [2018-09-21 18:11:35,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:11:35,338 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:11:35,353 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:11:35,354 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-21 18:11:35,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-21 18:11:35,355 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-21 18:11:35,355 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-21 18:11:35,355 INFO L87 Difference]: Start difference. First operand 47 states and 49 transitions. Second operand 6 states. [2018-09-21 18:11:38,850 WARN L178 SmtUtils]: Spent 1.69 s on a formula simplification that was a NOOP. DAG size: 13 [2018-09-21 18:11:40,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:11:40,191 INFO L93 Difference]: Finished difference Result 62 states and 63 transitions. [2018-09-21 18:11:40,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-21 18:11:40,193 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2018-09-21 18:11:40,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:11:40,195 INFO L225 Difference]: With dead ends: 62 [2018-09-21 18:11:40,195 INFO L226 Difference]: Without dead ends: 47 [2018-09-21 18:11:40,196 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-09-21 18:11:40,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-09-21 18:11:40,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-09-21 18:11:40,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-09-21 18:11:40,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2018-09-21 18:11:40,202 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 44 [2018-09-21 18:11:40,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:11:40,202 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2018-09-21 18:11:40,202 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-21 18:11:40,202 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2018-09-21 18:11:40,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-09-21 18:11:40,204 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:11:40,204 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:11:40,204 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:11:40,204 INFO L82 PathProgramCache]: Analyzing trace with hash 623561467, now seen corresponding path program 1 times [2018-09-21 18:11:40,206 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:11:40,206 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 18:11:40,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:11:40,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:11:40,375 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:11:40,406 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 18:11:40,413 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 18:11:40,414 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:11:40,418 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:40,427 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:40,428 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2018-09-21 18:11:40,457 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 23 treesize of output 18 [2018-09-21 18:11:40,466 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:11:40,468 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:11:40,470 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 35 [2018-09-21 18:11:40,471 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:11:40,492 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:40,502 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:40,502 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2018-09-21 18:11:40,535 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 64 treesize of output 48 [2018-09-21 18:11:40,543 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:11:40,544 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:11:40,546 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 22 [2018-09-21 18:11:40,547 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:11:40,557 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:40,560 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 18:11:40,560 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:64, output treesize:15 [2018-09-21 18:11:40,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:11:40,750 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:11:40,774 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:11:40,774 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-21 18:11:40,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-21 18:11:40,775 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-21 18:11:40,775 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-09-21 18:11:40,775 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand 11 states. [2018-09-21 18:11:41,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:11:41,851 INFO L93 Difference]: Finished difference Result 64 states and 64 transitions. [2018-09-21 18:11:41,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-21 18:11:41,852 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 45 [2018-09-21 18:11:41,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:11:41,853 INFO L225 Difference]: With dead ends: 64 [2018-09-21 18:11:41,854 INFO L226 Difference]: Without dead ends: 47 [2018-09-21 18:11:41,854 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2018-09-21 18:11:41,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-09-21 18:11:41,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-09-21 18:11:41,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-09-21 18:11:41,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 47 transitions. [2018-09-21 18:11:41,859 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 47 transitions. Word has length 45 [2018-09-21 18:11:41,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:11:41,859 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 47 transitions. [2018-09-21 18:11:41,859 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-21 18:11:41,859 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2018-09-21 18:11:41,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-09-21 18:11:41,861 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:11:41,861 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] [2018-09-21 18:11:41,861 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:11:41,861 INFO L82 PathProgramCache]: Analyzing trace with hash -2005267350, now seen corresponding path program 1 times [2018-09-21 18:11:41,862 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:11:41,862 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 18:11:41,876 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:11:42,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:11:42,014 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:11:42,050 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-21 18:11:42,060 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-21 18:11:42,060 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:11:42,086 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:42,102 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 18:11:42,102 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:11:42,141 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-21 18:11:42,146 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-21 18:11:42,146 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:11:42,151 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:42,162 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 18:11:42,162 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:11:42,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:11:42,458 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:11:42,475 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:11:42,476 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-21 18:11:42,476 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-21 18:11:42,476 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-21 18:11:42,476 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-21 18:11:42,477 INFO L87 Difference]: Start difference. First operand 47 states and 47 transitions. Second operand 8 states. [2018-09-21 18:11:43,108 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-21 18:11:43,387 WARN L178 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-21 18:11:45,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:11:45,305 INFO L93 Difference]: Finished difference Result 58 states and 57 transitions. [2018-09-21 18:11:45,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-21 18:11:45,306 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 46 [2018-09-21 18:11:45,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:11:45,307 INFO L225 Difference]: With dead ends: 58 [2018-09-21 18:11:45,307 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:11:45,307 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:11:45,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:11:45,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:11:45,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:11:45,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:11:45,308 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2018-09-21 18:11:45,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:11:45,308 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:11:45,308 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-21 18:11:45,308 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:11:45,309 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:11:45,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:11:45 BoogieIcfgContainer [2018-09-21 18:11:45,313 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:11:45,314 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:11:45,314 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:11:45,314 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:11:45,315 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:11:16" (3/4) ... [2018-09-21 18:11:45,319 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:11:45,327 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_double [2018-09-21 18:11:45,328 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:11:45,328 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ceil_double [2018-09-21 18:11:45,328 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:11:45,335 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-09-21 18:11:45,335 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-09-21 18:11:45,336 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-21 18:11:45,402 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:11:45,404 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:11:45,406 INFO L168 Benchmark]: Toolchain (without parser) took 31483.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 205.5 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -173.0 MB). Peak memory consumption was 32.5 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:45,408 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:11:45,409 INFO L168 Benchmark]: CACSL2BoogieTranslator took 413.48 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:45,409 INFO L168 Benchmark]: Boogie Preprocessor took 98.81 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:45,412 INFO L168 Benchmark]: RCFGBuilder took 2082.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -167.4 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:45,412 INFO L168 Benchmark]: TraceAbstraction took 28790.72 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 64.5 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -29.5 MB). Peak memory consumption was 35.0 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:45,413 INFO L168 Benchmark]: Witness Printer took 90.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.8 MB). Peak memory consumption was 7.8 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:45,417 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 413.48 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 98.81 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2082.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -167.4 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 28790.72 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 64.5 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -29.5 MB). Peak memory consumption was 35.0 MB. Max. memory is 11.5 GB. * Witness Printer took 90.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.8 MB). Peak memory consumption was 7.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 96]: 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, 67 locations, 1 error locations. SAFE Result, 28.7s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 22.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 294 SDtfs, 488 SDslu, 971 SDs, 0 SdLazy, 609 SolverSat, 48 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 250 GetRequests, 174 SyntacticMatches, 2 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 10.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred 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, 33 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 215 NumberOfCodeBlocks, 215 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 209 ConstructedInterpolants, 66 QuantifiedInterpolants, 72251 SizeOfPredicates, 35 NumberOfNonLiveVariables, 437 ConjunctsInSsa, 43 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...