./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1052c.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/float-newlib/double_req_bl_1052c.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 69b156b7cb8e47e9e9902f33725c5b7467b2d17a .......................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/float-newlib/double_req_bl_1052c.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 69b156b7cb8e47e9e9902f33725c5b7467b2d17a ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-27 23:44:56,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:44:56,591 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:44:56,604 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:44:56,604 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:44:56,605 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:44:56,607 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:44:56,609 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:44:56,611 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:44:56,612 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:44:56,613 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:44:56,614 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:44:56,614 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:44:56,615 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:44:56,617 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:44:56,618 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:44:56,620 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:44:56,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:44:56,622 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:44:56,628 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:44:56,633 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:44:56,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:44:56,637 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:44:56,639 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:44:56,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:44:56,644 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:44:56,644 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:44:56,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:44:56,647 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:44:56,648 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:44:56,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:44:56,650 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:44:56,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:44:56,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:44:56,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:44:56,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:44:56,655 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:44:56,656 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:44:56,657 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:44:56,659 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:44:56,661 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:44:56,663 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 23:44:56,690 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:44:56,690 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:44:56,694 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:44:56,694 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:44:56,694 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:44:56,695 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:44:56,695 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:44:56,695 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 23:44:56,696 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:44:56,696 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:44:56,697 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:44:56,697 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:44:56,698 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:44:56,698 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:44:56,698 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:44:56,699 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:44:56,699 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:44:56,699 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:44:56,700 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:44:56,700 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:44:56,701 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:44:56,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:44:56,701 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:44:56,701 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:44:56,702 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:44:56,702 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 23:44:56,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 23:44:56,703 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:44:56,703 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> 69b156b7cb8e47e9e9902f33725c5b7467b2d17a [2019-11-27 23:44:57,009 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:44:57,022 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:44:57,025 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:44:57,027 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:44:57,027 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:44:57,028 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1052c.c [2019-11-27 23:44:57,083 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/799c454d9/cb97789d59f74217a08919ec7dadef9c/FLAGab3a2c547 [2019-11-27 23:44:57,562 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:44:57,563 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1052c.c [2019-11-27 23:44:57,572 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/799c454d9/cb97789d59f74217a08919ec7dadef9c/FLAGab3a2c547 [2019-11-27 23:44:57,904 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/799c454d9/cb97789d59f74217a08919ec7dadef9c [2019-11-27 23:44:57,908 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:44:57,910 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:44:57,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:44:57,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:44:57,918 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:44:57,919 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:44:57" (1/1) ... [2019-11-27 23:44:57,922 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@672d8e3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:57, skipping insertion in model container [2019-11-27 23:44:57,922 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:44:57" (1/1) ... [2019-11-27 23:44:57,932 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:44:57,954 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:44:58,232 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:44:58,239 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:44:58,409 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:44:58,438 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:44:58,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:58 WrapperNode [2019-11-27 23:44:58,440 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:44:58,441 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:44:58,441 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:44:58,441 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:44:58,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:58" (1/1) ... [2019-11-27 23:44:58,474 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:58" (1/1) ... [2019-11-27 23:44:58,505 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:44:58,506 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:44:58,506 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:44:58,506 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:44:58,514 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:58" (1/1) ... [2019-11-27 23:44:58,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:58" (1/1) ... [2019-11-27 23:44:58,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:58" (1/1) ... [2019-11-27 23:44:58,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:58" (1/1) ... [2019-11-27 23:44:58,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:58" (1/1) ... [2019-11-27 23:44:58,531 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:58" (1/1) ... [2019-11-27 23:44:58,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:58" (1/1) ... [2019-11-27 23:44:58,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:44:58,537 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:44:58,537 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:44:58,537 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:44:58,538 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:58" (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 [2019-11-27 23:44:58,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-27 23:44:58,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-27 23:44:58,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-27 23:44:58,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:44:58,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:44:58,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-27 23:44:58,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-27 23:44:58,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-27 23:44:59,007 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:44:59,007 INFO L297 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-27 23:44:59,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:44:59 BoogieIcfgContainer [2019-11-27 23:44:59,008 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:44:59,009 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:44:59,010 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:44:59,012 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:44:59,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:44:57" (1/3) ... [2019-11-27 23:44:59,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72849d42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:44:59, skipping insertion in model container [2019-11-27 23:44:59,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:58" (2/3) ... [2019-11-27 23:44:59,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72849d42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:44:59, skipping insertion in model container [2019-11-27 23:44:59,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:44:59" (3/3) ... [2019-11-27 23:44:59,016 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052c.c [2019-11-27 23:44:59,025 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:44:59,032 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 23:44:59,042 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 23:44:59,062 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:44:59,062 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:44:59,063 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:44:59,063 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:44:59,063 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:44:59,063 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:44:59,063 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:44:59,063 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:44:59,076 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2019-11-27 23:44:59,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-27 23:44:59,083 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:44:59,084 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:44:59,085 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:44:59,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:44:59,091 INFO L82 PathProgramCache]: Analyzing trace with hash -1930029915, now seen corresponding path program 1 times [2019-11-27 23:44:59,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:44:59,097 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960494993] [2019-11-27 23:44:59,098 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:44:59,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:44:59,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:44:59,203 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960494993] [2019-11-27 23:44:59,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:44:59,204 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-27 23:44:59,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705931687] [2019-11-27 23:44:59,209 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-27 23:44:59,209 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 23:44:59,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-27 23:44:59,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 23:44:59,221 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2019-11-27 23:44:59,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:44:59,239 INFO L93 Difference]: Finished difference Result 74 states and 118 transitions. [2019-11-27 23:44:59,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-27 23:44:59,243 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-27 23:44:59,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:44:59,254 INFO L225 Difference]: With dead ends: 74 [2019-11-27 23:44:59,254 INFO L226 Difference]: Without dead ends: 35 [2019-11-27 23:44:59,258 INFO L630 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 [2019-11-27 23:44:59,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-11-27 23:44:59,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-11-27 23:44:59,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-27 23:44:59,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 50 transitions. [2019-11-27 23:44:59,295 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 50 transitions. Word has length 11 [2019-11-27 23:44:59,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:44:59,295 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 50 transitions. [2019-11-27 23:44:59,295 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-27 23:44:59,295 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 50 transitions. [2019-11-27 23:44:59,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-27 23:44:59,296 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:44:59,296 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:44:59,297 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:44:59,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:44:59,298 INFO L82 PathProgramCache]: Analyzing trace with hash -1310108990, now seen corresponding path program 1 times [2019-11-27 23:44:59,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:44:59,298 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077995946] [2019-11-27 23:44:59,298 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:44:59,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:44:59,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:44:59,395 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-27 23:44:59,396 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-27 23:44:59,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:44:59 BoogieIcfgContainer [2019-11-27 23:44:59,423 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:44:59,424 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:44:59,424 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:44:59,424 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:44:59,425 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:44:59" (3/4) ... [2019-11-27 23:44:59,428 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-27 23:44:59,428 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:44:59,431 INFO L168 Benchmark]: Toolchain (without parser) took 1520.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 961.7 MB in the beginning and 1.0 GB in the end (delta: -78.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 11.5 GB. [2019-11-27 23:44:59,432 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:44:59,433 INFO L168 Benchmark]: CACSL2BoogieTranslator took 526.94 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -132.5 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-11-27 23:44:59,433 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.64 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. [2019-11-27 23:44:59,434 INFO L168 Benchmark]: Boogie Preprocessor took 30.72 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. [2019-11-27 23:44:59,435 INFO L168 Benchmark]: RCFGBuilder took 471.52 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: 26.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2019-11-27 23:44:59,436 INFO L168 Benchmark]: TraceAbstraction took 414.12 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2019-11-27 23:44:59,436 INFO L168 Benchmark]: Witness Printer took 4.39 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:44:59,440 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 526.94 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -132.5 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 64.64 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. * Boogie Preprocessor took 30.72 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. * RCFGBuilder took 471.52 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: 26.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 414.12 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. * Witness Printer took 4.39 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 103]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 37, overapproximation of bitwiseOr at line 38, overapproximation of someUnaryDOUBLEoperation at line 98, overapproximation of bitwiseAnd at line 25, overapproximation of someBinaryDOUBLEComparisonOperation at line 102. Possible FailurePath: [L14] static const double huge_floor = 1.0e300; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L98] double x = -0.0; [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L20] ieee_double_shape_type ew_u; [L21] ew_u.value = (x) [L22] EXPR ew_u.parts.msw [L22] (i0) = ew_u.parts.msw [L23] EXPR ew_u.parts.lsw [L23] (i1) = ew_u.parts.lsw [L25] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L26] COND TRUE j0 < 20 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L27] COND FALSE !(j0 < 0) [L37] i = (0x000fffff) >> j0 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L38] COND TRUE ((i0 & i) | i1) == 0 [L39] return x; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L99] double res = floor_double(x); [L102] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L102] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L103] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 53 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=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: 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 0.1.24-30f4e4a [2019-11-27 23:45:01,387 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:45:01,390 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:45:01,406 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:45:01,407 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:45:01,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:45:01,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:45:01,423 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:45:01,426 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:45:01,428 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:45:01,430 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:45:01,431 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:45:01,432 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:45:01,436 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:45:01,438 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:45:01,439 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:45:01,441 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:45:01,443 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:45:01,447 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:45:01,450 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:45:01,452 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:45:01,455 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:45:01,458 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:45:01,459 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:45:01,462 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:45:01,463 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:45:01,463 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:45:01,464 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:45:01,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:45:01,467 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:45:01,467 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:45:01,469 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:45:01,469 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:45:01,470 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:45:01,472 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:45:01,473 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:45:01,474 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:45:01,474 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:45:01,474 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:45:01,476 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:45:01,478 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:45:01,479 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 23:45:01,496 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:45:01,497 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:45:01,498 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:45:01,498 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:45:01,498 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:45:01,498 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:45:01,499 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:45:01,499 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:45:01,499 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:45:01,499 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:45:01,500 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:45:01,500 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:45:01,500 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 23:45:01,500 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 23:45:01,500 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:45:01,501 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:45:01,501 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:45:01,501 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:45:01,501 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:45:01,502 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:45:01,502 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:45:01,502 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:45:01,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:45:01,503 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:45:01,503 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:45:01,503 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:45:01,503 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 23:45:01,503 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 23:45:01,504 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:45:01,504 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 23:45:01,504 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 -> 69b156b7cb8e47e9e9902f33725c5b7467b2d17a [2019-11-27 23:45:01,830 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:45:01,845 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:45:01,849 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:45:01,851 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:45:01,851 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:45:01,852 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1052c.c [2019-11-27 23:45:01,920 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86999cc89/7432ad7ac9a64984ba3278799076135c/FLAG91ef39457 [2019-11-27 23:45:02,367 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:45:02,368 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1052c.c [2019-11-27 23:45:02,373 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86999cc89/7432ad7ac9a64984ba3278799076135c/FLAG91ef39457 [2019-11-27 23:45:02,737 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86999cc89/7432ad7ac9a64984ba3278799076135c [2019-11-27 23:45:02,741 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:45:02,743 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:45:02,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:45:02,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:45:02,748 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:45:02,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:45:02" (1/1) ... [2019-11-27 23:45:02,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7367900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:02, skipping insertion in model container [2019-11-27 23:45:02,752 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:45:02" (1/1) ... [2019-11-27 23:45:02,760 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:45:02,780 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:45:03,003 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:45:03,011 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:45:03,051 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:45:03,150 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:45:03,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:03 WrapperNode [2019-11-27 23:45:03,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:45:03,152 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:45:03,152 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:45:03,153 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:45:03,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:03" (1/1) ... [2019-11-27 23:45:03,176 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:03" (1/1) ... [2019-11-27 23:45:03,203 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:45:03,204 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:45:03,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:45:03,204 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:45:03,211 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:03" (1/1) ... [2019-11-27 23:45:03,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:03" (1/1) ... [2019-11-27 23:45:03,217 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:03" (1/1) ... [2019-11-27 23:45:03,217 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:03" (1/1) ... [2019-11-27 23:45:03,228 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:03" (1/1) ... [2019-11-27 23:45:03,234 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:03" (1/1) ... [2019-11-27 23:45:03,236 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:03" (1/1) ... [2019-11-27 23:45:03,240 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:45:03,241 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:45:03,241 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:45:03,241 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:45:03,242 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:03" (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 [2019-11-27 23:45:03,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-27 23:45:03,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-27 23:45:03,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-27 23:45:03,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-27 23:45:03,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:45:03,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:45:03,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-27 23:45:03,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-27 23:45:04,459 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:45:04,459 INFO L297 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-27 23:45:04,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:45:04 BoogieIcfgContainer [2019-11-27 23:45:04,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:45:04,462 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:45:04,462 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:45:04,466 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:45:04,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:45:02" (1/3) ... [2019-11-27 23:45:04,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@782d903f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:45:04, skipping insertion in model container [2019-11-27 23:45:04,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:03" (2/3) ... [2019-11-27 23:45:04,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@782d903f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:45:04, skipping insertion in model container [2019-11-27 23:45:04,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:45:04" (3/3) ... [2019-11-27 23:45:04,469 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052c.c [2019-11-27 23:45:04,479 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:45:04,487 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 23:45:04,496 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 23:45:04,514 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:45:04,515 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:45:04,515 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:45:04,515 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:45:04,515 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:45:04,515 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:45:04,515 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:45:04,516 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:45:04,528 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2019-11-27 23:45:04,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-27 23:45:04,533 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:45:04,534 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:45:04,535 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:45:04,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:45:04,541 INFO L82 PathProgramCache]: Analyzing trace with hash -1930029915, now seen corresponding path program 1 times [2019-11-27 23:45:04,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:45:04,550 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1623341653] [2019-11-27 23:45:04,550 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-27 23:45:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:45:04,637 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-27 23:45:04,642 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:45:04,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:04,657 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:45:04,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:04,665 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1623341653] [2019-11-27 23:45:04,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:45:04,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-27 23:45:04,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754200558] [2019-11-27 23:45:04,671 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-27 23:45:04,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:45:04,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-27 23:45:04,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 23:45:04,688 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2019-11-27 23:45:04,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:45:04,711 INFO L93 Difference]: Finished difference Result 74 states and 118 transitions. [2019-11-27 23:45:04,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-27 23:45:04,712 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-27 23:45:04,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:45:04,724 INFO L225 Difference]: With dead ends: 74 [2019-11-27 23:45:04,724 INFO L226 Difference]: Without dead ends: 35 [2019-11-27 23:45:04,727 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 23:45:04,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-11-27 23:45:04,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-11-27 23:45:04,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-27 23:45:04,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 50 transitions. [2019-11-27 23:45:04,765 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 50 transitions. Word has length 11 [2019-11-27 23:45:04,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:45:04,765 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 50 transitions. [2019-11-27 23:45:04,765 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-27 23:45:04,765 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 50 transitions. [2019-11-27 23:45:04,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-27 23:45:04,766 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:45:04,766 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:45:04,978 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-27 23:45:04,979 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:45:04,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:45:04,980 INFO L82 PathProgramCache]: Analyzing trace with hash -1310108990, now seen corresponding path program 1 times [2019-11-27 23:45:04,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:45:04,983 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1068413638] [2019-11-27 23:45:04,983 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-27 23:45:05,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:45:05,062 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-27 23:45:05,065 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:45:05,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:05,165 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:45:05,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:05,252 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1068413638] [2019-11-27 23:45:05,252 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:45:05,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-27 23:45:05,253 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671392605] [2019-11-27 23:45:05,256 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-27 23:45:05,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:45:05,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-27 23:45:05,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-27 23:45:05,258 INFO L87 Difference]: Start difference. First operand 35 states and 50 transitions. Second operand 8 states. [2019-11-27 23:45:05,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:45:05,689 INFO L93 Difference]: Finished difference Result 59 states and 74 transitions. [2019-11-27 23:45:05,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-27 23:45:05,690 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2019-11-27 23:45:05,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:45:05,692 INFO L225 Difference]: With dead ends: 59 [2019-11-27 23:45:05,692 INFO L226 Difference]: Without dead ends: 34 [2019-11-27 23:45:05,693 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2019-11-27 23:45:05,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-27 23:45:05,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 22. [2019-11-27 23:45:05,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-27 23:45:05,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2019-11-27 23:45:05,699 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 12 [2019-11-27 23:45:05,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:45:05,700 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2019-11-27 23:45:05,700 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-27 23:45:05,700 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2019-11-27 23:45:05,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-27 23:45:05,701 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:45:05,701 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:45:05,915 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-27 23:45:05,915 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:45:05,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:45:05,916 INFO L82 PathProgramCache]: Analyzing trace with hash -649381144, now seen corresponding path program 1 times [2019-11-27 23:45:05,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:45:05,918 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1130579287] [2019-11-27 23:45:05,918 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-27 23:45:06,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:45:06,080 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-27 23:45:06,082 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:45:06,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:06,146 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:45:06,861 WARN L192 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2019-11-27 23:45:07,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:07,137 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1130579287] [2019-11-27 23:45:07,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:45:07,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-27 23:45:07,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090426744] [2019-11-27 23:45:07,138 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-27 23:45:07,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:45:07,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-27 23:45:07,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-27 23:45:07,139 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 6 states. [2019-11-27 23:45:07,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:45:07,447 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2019-11-27 23:45:07,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-27 23:45:07,456 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-11-27 23:45:07,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:45:07,457 INFO L225 Difference]: With dead ends: 34 [2019-11-27 23:45:07,457 INFO L226 Difference]: Without dead ends: 22 [2019-11-27 23:45:07,458 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-27 23:45:07,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-27 23:45:07,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-11-27 23:45:07,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-27 23:45:07,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2019-11-27 23:45:07,464 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 15 [2019-11-27 23:45:07,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:45:07,464 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2019-11-27 23:45:07,464 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-27 23:45:07,465 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2019-11-27 23:45:07,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-27 23:45:07,466 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:45:07,466 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:45:07,666 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-27 23:45:07,667 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:45:07,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:45:07,669 INFO L82 PathProgramCache]: Analyzing trace with hash 461150674, now seen corresponding path program 1 times [2019-11-27 23:45:07,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:45:07,671 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [329889359] [2019-11-27 23:45:07,671 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-27 23:45:07,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:45:07,887 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-27 23:45:07,889 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:45:07,940 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 56 [2019-11-27 23:45:07,962 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-27 23:45:07,970 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 58 [2019-11-27 23:45:07,971 INFO L508 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-27 23:45:08,000 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:45:08,016 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2019-11-27 23:45:08,018 INFO L508 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-27 23:45:08,037 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:45:08,045 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:45:08,045 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 20 [2019-11-27 23:45:08,046 INFO L508 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-27 23:45:08,058 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:45:08,059 INFO L508 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-27 23:45:08,079 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:45:08,080 INFO L508 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-27 23:45:08,081 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:72, output treesize:29 [2019-11-27 23:45:08,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:08,124 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:45:08,181 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:45:08,182 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 49 treesize of output 54 [2019-11-27 23:45:08,195 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2019-11-27 23:45:08,196 INFO L508 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-27 23:45:08,209 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:45:08,217 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:45:08,218 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 16 [2019-11-27 23:45:08,219 INFO L508 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-27 23:45:08,223 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:45:08,223 INFO L508 ElimStorePlain]: Start of recursive call 2: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-27 23:45:08,239 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:45:08,240 INFO L508 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-27 23:45:08,241 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:68, output treesize:26 [2019-11-27 23:45:08,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:08,250 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [329889359] [2019-11-27 23:45:08,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:45:08,251 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 2] imperfect sequences [] total 5 [2019-11-27 23:45:08,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008379590] [2019-11-27 23:45:08,252 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-27 23:45:08,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:45:08,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-27 23:45:08,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-27 23:45:08,253 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 5 states. [2019-11-27 23:45:08,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:45:08,255 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2019-11-27 23:45:08,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-27 23:45:08,255 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-27 23:45:08,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:45:08,256 INFO L225 Difference]: With dead ends: 22 [2019-11-27 23:45:08,256 INFO L226 Difference]: Without dead ends: 0 [2019-11-27 23:45:08,256 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-27 23:45:08,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-27 23:45:08,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-27 23:45:08,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-27 23:45:08,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-27 23:45:08,258 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-11-27 23:45:08,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:45:08,258 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-27 23:45:08,258 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-27 23:45:08,259 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-27 23:45:08,259 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-27 23:45:08,470 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-27 23:45:08,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-27 23:45:08,533 INFO L246 CegarLoopResult]: For program point L27(lines 27 46) no Hoare annotation was computed. [2019-11-27 23:45:08,533 INFO L246 CegarLoopResult]: For program point L19-1(lines 19 24) no Hoare annotation was computed. [2019-11-27 23:45:08,536 INFO L242 CegarLoopResult]: At program point L19-2(lines 19 24) the Hoare annotation is: false [2019-11-27 23:45:08,536 INFO L246 CegarLoopResult]: For program point L19-3(lines 19 24) no Hoare annotation was computed. [2019-11-27 23:45:08,536 INFO L246 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2019-11-27 23:45:08,536 INFO L246 CegarLoopResult]: For program point L102-2(lines 102 105) no Hoare annotation was computed. [2019-11-27 23:45:08,537 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-27 23:45:08,540 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-27 23:45:08,540 INFO L246 CegarLoopResult]: For program point L28(lines 28 35) no Hoare annotation was computed. [2019-11-27 23:45:08,540 INFO L246 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2019-11-27 23:45:08,541 INFO L246 CegarLoopResult]: For program point L70(lines 70 75) no Hoare annotation was computed. [2019-11-27 23:45:08,541 INFO L246 CegarLoopResult]: For program point L70-1(lines 16 77) no Hoare annotation was computed. [2019-11-27 23:45:08,541 INFO L246 CegarLoopResult]: For program point L70-2(lines 70 75) no Hoare annotation was computed. [2019-11-27 23:45:08,541 INFO L246 CegarLoopResult]: For program point L62(lines 62 63) no Hoare annotation was computed. [2019-11-27 23:45:08,542 INFO L246 CegarLoopResult]: For program point L29(lines 29 34) no Hoare annotation was computed. [2019-11-27 23:45:08,542 INFO L246 CegarLoopResult]: For program point L62-2(lines 62 63) no Hoare annotation was computed. [2019-11-27 23:45:08,542 INFO L246 CegarLoopResult]: For program point L54(lines 54 55) no Hoare annotation was computed. [2019-11-27 23:45:08,542 INFO L246 CegarLoopResult]: For program point L38(lines 38 39) no Hoare annotation was computed. [2019-11-27 23:45:08,543 INFO L242 CegarLoopResult]: At program point L88(lines 79 89) the Hoare annotation is: false [2019-11-27 23:45:08,543 INFO L246 CegarLoopResult]: For program point L47(lines 47 69) no Hoare annotation was computed. [2019-11-27 23:45:08,543 INFO L246 CegarLoopResult]: For program point L31(lines 31 34) no Hoare annotation was computed. [2019-11-27 23:45:08,543 INFO L246 CegarLoopResult]: For program point L56(lines 56 68) no Hoare annotation was computed. [2019-11-27 23:45:08,544 INFO L246 CegarLoopResult]: For program point L48(lines 48 51) no Hoare annotation was computed. [2019-11-27 23:45:08,544 INFO L246 CegarLoopResult]: For program point L40(lines 40 45) no Hoare annotation was computed. [2019-11-27 23:45:08,544 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-27 23:45:08,544 INFO L246 CegarLoopResult]: For program point L57(lines 57 66) no Hoare annotation was computed. [2019-11-27 23:45:08,544 INFO L246 CegarLoopResult]: For program point L57-1(lines 57 66) no Hoare annotation was computed. [2019-11-27 23:45:08,544 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 103) no Hoare annotation was computed. [2019-11-27 23:45:08,545 INFO L246 CegarLoopResult]: For program point L82-1(lines 82 86) no Hoare annotation was computed. [2019-11-27 23:45:08,545 INFO L242 CegarLoopResult]: At program point L82-2(lines 82 86) the Hoare annotation is: false [2019-11-27 23:45:08,545 INFO L246 CegarLoopResult]: For program point L82-3(lines 82 86) no Hoare annotation was computed. [2019-11-27 23:45:08,545 INFO L249 CegarLoopResult]: At program point L107(lines 91 108) the Hoare annotation is: true [2019-11-27 23:45:08,545 INFO L246 CegarLoopResult]: For program point L41(lines 41 42) no Hoare annotation was computed. [2019-11-27 23:45:08,545 INFO L246 CegarLoopResult]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2019-11-27 23:45:08,546 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-27 23:45:08,546 INFO L246 CegarLoopResult]: For program point L58(lines 58 65) no Hoare annotation was computed. [2019-11-27 23:45:08,546 INFO L246 CegarLoopResult]: For program point L26(lines 26 69) no Hoare annotation was computed. [2019-11-27 23:45:08,546 INFO L242 CegarLoopResult]: At program point L76(lines 16 77) the Hoare annotation is: false [2019-11-27 23:45:08,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:45:08 BoogieIcfgContainer [2019-11-27 23:45:08,562 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:45:08,563 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:45:08,564 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:45:08,564 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:45:08,565 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:45:04" (3/4) ... [2019-11-27 23:45:08,570 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-27 23:45:08,596 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-11-27 23:45:08,597 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-27 23:45:08,597 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-27 23:45:08,723 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-27 23:45:08,724 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:45:08,726 INFO L168 Benchmark]: Toolchain (without parser) took 5983.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 960.4 MB in the beginning and 963.6 MB in the end (delta: -3.2 MB). Peak memory consumption was 144.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:08,727 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:45:08,727 INFO L168 Benchmark]: CACSL2BoogieTranslator took 407.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -177.2 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:08,728 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.57 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:45:08,728 INFO L168 Benchmark]: Boogie Preprocessor took 36.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:45:08,728 INFO L168 Benchmark]: RCFGBuilder took 1220.23 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: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:08,729 INFO L168 Benchmark]: TraceAbstraction took 4100.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 970.1 MB in the end (delta: 134.2 MB). Peak memory consumption was 134.2 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:08,729 INFO L168 Benchmark]: Witness Printer took 160.87 ms. Allocated memory is still 1.2 GB. Free memory was 970.1 MB in the beginning and 963.6 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:08,732 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 407.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -177.2 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 51.57 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1220.23 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: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4100.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 970.1 MB in the end (delta: 134.2 MB). Peak memory consumption was 134.2 MB. Max. memory is 11.5 GB. * Witness Printer took 160.87 ms. Allocated memory is still 1.2 GB. Free memory was 970.1 MB in the beginning and 963.6 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 103]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 82]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 91]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 79]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Result: SAFE, OverallTime: 3.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 87 SDtfs, 123 SDslu, 47 SDs, 0 SdLazy, 27 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 106 GetRequests, 87 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 6 NumberOfFragments, 5 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 102 ConstructedInterpolants, 12 QuantifiedInterpolants, 8214 SizeOfPredicates, 15 NumberOfNonLiveVariables, 158 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...