/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1011a_true-unreach-call.c --full-output --architecture 32bit --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5eb3fea6 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1011a_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 887f0640b1b5afa2d39789f5b16e950cef616033 --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false .................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1011a_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 887f0640b1b5afa2d39789f5b16e950cef616033 --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false ...................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:37:27,034 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:37:27,036 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:37:27,048 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:37:27,048 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:37:27,049 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:37:27,051 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:37:27,053 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:37:27,054 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:37:27,055 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:37:27,056 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:37:27,056 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:37:27,057 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:37:27,058 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:37:27,059 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:37:27,060 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:37:27,061 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:37:27,063 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:37:27,065 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:37:27,067 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:37:27,068 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:37:27,069 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:37:27,071 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:37:27,072 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:37:27,072 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:37:27,073 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:37:27,074 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:37:27,075 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:37:27,081 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:37:27,084 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:37:27,084 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:37:27,086 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:37:27,089 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:37:27,089 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:37:27,090 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:37:27,092 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:37:27,093 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:37:27,108 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:37:27,109 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:37:27,110 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:37:27,110 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:37:27,111 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:37:27,111 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:37:27,111 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:37:27,112 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:37:27,112 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:37:27,112 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:37:27,112 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:37:27,112 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:37:27,112 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:37:27,113 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:37:27,113 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:37:27,113 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:37:27,113 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:37:27,113 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:37:27,115 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:37:27,115 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:37:27,115 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:37:27,116 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:37:27,116 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:37:27,116 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:37:27,116 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:37:27,116 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:37:27,117 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:37:27,117 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:37:27,117 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:37:27,117 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 887f0640b1b5afa2d39789f5b16e950cef616033 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:37:27,168 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:37:27,182 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:37:27,187 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:37:27,189 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:37:27,189 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:37:27,190 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1011a_true-unreach-call.c [2018-09-21 18:37:27,574 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1881e9797/516d02e543b647838cdd1850cd55cf73/FLAG2d9137d22 [2018-09-21 18:37:27,754 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:37:27,755 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1011a_true-unreach-call.c [2018-09-21 18:37:27,763 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1881e9797/516d02e543b647838cdd1850cd55cf73/FLAG2d9137d22 [2018-09-21 18:37:27,784 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1881e9797/516d02e543b647838cdd1850cd55cf73 [2018-09-21 18:37:27,789 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:37:27,793 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:37:27,794 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:37:27,794 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:37:27,802 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:37:27,803 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:37:27" (1/1) ... [2018-09-21 18:37:27,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c8a7346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:27, skipping insertion in model container [2018-09-21 18:37:27,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:37:27" (1/1) ... [2018-09-21 18:37:27,819 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:37:28,061 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:37:28,077 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:37:28,088 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:37:28,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:28 WrapperNode [2018-09-21 18:37:28,119 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:37:28,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:37:28,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:37:28,120 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:37:28,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:28" (1/1) ... [2018-09-21 18:37:28,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:28" (1/1) ... [2018-09-21 18:37:28,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:28" (1/1) ... [2018-09-21 18:37:28,149 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:28" (1/1) ... [2018-09-21 18:37:28,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:28" (1/1) ... [2018-09-21 18:37:28,161 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:28" (1/1) ... [2018-09-21 18:37:28,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:28" (1/1) ... [2018-09-21 18:37:28,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:37:28,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:37:28,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:37:28,168 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:37:28,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:37:28,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:37:28,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:37:28,239 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-09-21 18:37:28,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-09-21 18:37:28,239 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:37:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:37:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:37:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-09-21 18:37:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:37:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:37:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:37:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:37:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:37:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:37:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-09-21 18:37:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:37:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:37:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:37:28,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:37:28,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:37:28,846 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:37:28,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:37:28 BoogieIcfgContainer [2018-09-21 18:37:28,847 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:37:28,847 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:37:28,848 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:37:28,851 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:37:28,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:37:27" (1/3) ... [2018-09-21 18:37:28,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a56ce2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:37:28, skipping insertion in model container [2018-09-21 18:37:28,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:28" (2/3) ... [2018-09-21 18:37:28,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a56ce2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:37:28, skipping insertion in model container [2018-09-21 18:37:28,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:37:28" (3/3) ... [2018-09-21 18:37:28,854 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1011a_true-unreach-call.c [2018-09-21 18:37:28,864 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:37:28,872 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:37:28,913 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:37:28,914 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:37:28,914 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:37:28,914 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:37:28,914 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:37:28,914 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:37:28,915 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:37:28,915 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:37:28,915 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:37:28,931 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2018-09-21 18:37:28,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-21 18:37:28,942 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:37:28,943 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:37:28,946 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:37:28,951 INFO L82 PathProgramCache]: Analyzing trace with hash 348928086, now seen corresponding path program 1 times [2018-09-21 18:37:28,953 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:37:28,954 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:37:29,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:37:29,004 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:37:29,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:37:29,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:37:29,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:37:29,100 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:37:29,101 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:37:29,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:37:29,117 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:37:29,118 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:37:29,120 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 2 states. [2018-09-21 18:37:29,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:37:29,139 INFO L93 Difference]: Finished difference Result 56 states and 56 transitions. [2018-09-21 18:37:29,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:37:29,141 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-09-21 18:37:29,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:37:29,151 INFO L225 Difference]: With dead ends: 56 [2018-09-21 18:37:29,151 INFO L226 Difference]: Without dead ends: 52 [2018-09-21 18:37:29,153 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:37:29,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-09-21 18:37:29,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-09-21 18:37:29,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-09-21 18:37:29,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2018-09-21 18:37:29,195 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 17 [2018-09-21 18:37:29,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:37:29,195 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2018-09-21 18:37:29,196 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:37:29,196 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2018-09-21 18:37:29,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-09-21 18:37:29,197 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:37:29,197 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:37:29,198 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:37:29,198 INFO L82 PathProgramCache]: Analyzing trace with hash -1290267238, now seen corresponding path program 1 times [2018-09-21 18:37:29,198 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:37:29,199 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:37:29,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:37:29,200 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:37:29,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:37:29,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:37:29,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:37:29,328 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:37:29,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:37:29 BoogieIcfgContainer [2018-09-21 18:37:29,363 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:37:29,364 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:37:29,364 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:37:29,364 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:37:29,365 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:37:28" (3/4) ... [2018-09-21 18:37:29,370 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 18:37:29,370 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:37:29,371 INFO L168 Benchmark]: Toolchain (without parser) took 1581.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 951.8 MB in the beginning and 1.1 GB in the end (delta: -144.7 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. [2018-09-21 18:37:29,373 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:37:29,374 INFO L168 Benchmark]: CACSL2BoogieTranslator took 325.15 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:37:29,375 INFO L168 Benchmark]: Boogie Preprocessor took 47.30 ms. Allocated memory is still 1.0 GB. Free memory is still 941.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:37:29,375 INFO L168 Benchmark]: RCFGBuilder took 679.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -182.3 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:37:29,376 INFO L168 Benchmark]: TraceAbstraction took 516.14 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: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. [2018-09-21 18:37:29,377 INFO L168 Benchmark]: Witness Printer took 5.97 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:37:29,381 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 325.15 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 47.30 ms. Allocated memory is still 1.0 GB. Free memory is still 941.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 679.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -182.3 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 516.14 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: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. * Witness Printer took 5.97 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 50]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 49, overapproximation of bitwiseAnd at line 21. Possible FailurePath: [L45] float x = 0.0f; VAL [x=0] [L46] CALL, EXPR fabs_float(x) VAL [\old(x)=0] [L13] __uint32_t ix; VAL [\old(x)=0, x=0] [L15] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=0, gf_u={6:0}, x=0] [L16] FCALL gf_u.value = (x) VAL [\old(x)=0, gf_u={6:0}, x=0] [L17] EXPR, FCALL gf_u.word VAL [\old(x)=0, gf_u={6:0}, gf_u.word=9, x=0] [L17] (ix) = gf_u.word VAL [\old(x)=0, gf_u={6:0}, gf_u.word=9, ix=9, x=0] [L17] FCALL (ix) = gf_u.word VAL [(ix) = gf_u.word=11, \old(x)=0, gf_u={6:0}, gf_u.word=9, ix=9, x=0] [L18] COND FALSE !(0) VAL [\old(x)=0, ix=9, x=0] [L20] FCALL ieee_float_shape_type sf_u; VAL [\old(x)=0, ix=9, sf_u={6:0}, x=0] [L21] FCALL sf_u.word = (ix & 0x7fffffff) VAL [\old(x)=0, ix=9, sf_u={6:0}, x=0] [L22] EXPR, FCALL sf_u.value VAL [\old(x)=0, ix=9, sf_u={6:0}, sf_u.value=11, x=0] [L22] (x) = sf_u.value VAL [\old(x)=0, ix=9, sf_u={6:0}, sf_u.value=11, x=11] [L22] FCALL (x) = sf_u.value VAL [(x) = sf_u.value=7, \old(x)=0, ix=9, sf_u={6:0}, sf_u.value=11, x=11] [L23] COND FALSE !(0) VAL [\old(x)=0, ix=9, x=11] [L24] RET return x; VAL [\old(x)=0, \result=11, ix=9, x=11] [L46] EXPR fabs_float(x) VAL [fabs_float(x)=11, x=0] [L46] float res = fabs_float(x); [L49] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [res=11, res == 0.0f && __signbit_float(res) == 0=0, x=0] [L49] COND FALSE, EXPR !(res == 0.0f && __signbit_float(res) == 0) VAL [res=11, res == 0.0f && __signbit_float(res) == 0=0, x=0] [L49] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L50] __VERIFIER_error() VAL [res=11, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 56 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 56 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=56occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 256 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:37:31,783 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:37:31,785 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:37:31,802 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:37:31,802 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:37:31,803 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:37:31,804 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:37:31,806 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:37:31,808 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:37:31,809 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:37:31,809 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:37:31,810 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:37:31,811 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:37:31,812 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:37:31,813 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:37:31,814 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:37:31,814 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:37:31,816 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:37:31,819 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:37:31,820 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:37:31,821 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:37:31,823 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:37:31,825 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:37:31,826 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:37:31,826 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:37:31,827 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:37:31,828 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:37:31,829 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:37:31,830 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:37:31,835 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:37:31,836 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:37:31,837 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:37:31,837 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:37:31,837 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:37:31,838 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:37:31,839 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:37:31,839 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:37:31,867 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:37:31,868 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:37:31,869 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:37:31,869 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:37:31,870 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:37:31,871 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:37:31,872 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:37:31,872 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:37:31,872 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:37:31,872 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:37:31,872 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:37:31,873 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:37:31,873 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:37:31,874 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:37:31,874 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:37:31,874 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:37:31,874 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:37:31,874 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:37:31,874 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:37:31,875 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:37:31,875 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:37:31,875 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:37:31,875 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:37:31,878 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:37:31,878 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:37:31,878 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:37:31,878 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:37:31,879 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:37:31,879 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:37:31,880 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:37:31,880 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:37:31,880 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 887f0640b1b5afa2d39789f5b16e950cef616033 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:37:31,957 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:37:31,973 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:37:31,978 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:37:31,980 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:37:31,980 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:37:31,981 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1011a_true-unreach-call.c [2018-09-21 18:37:32,329 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f8207b96/f016ed623b4440929d23399d87033c03/FLAG19f5fc3b8 [2018-09-21 18:37:32,464 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:37:32,464 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1011a_true-unreach-call.c [2018-09-21 18:37:32,472 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f8207b96/f016ed623b4440929d23399d87033c03/FLAG19f5fc3b8 [2018-09-21 18:37:32,488 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f8207b96/f016ed623b4440929d23399d87033c03 [2018-09-21 18:37:32,494 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:37:32,499 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:37:32,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:37:32,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:37:32,510 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:37:32,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:37:32" (1/1) ... [2018-09-21 18:37:32,514 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@327e7a1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:32, skipping insertion in model container [2018-09-21 18:37:32,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:37:32" (1/1) ... [2018-09-21 18:37:32,528 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:37:32,814 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:37:32,834 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:37:32,846 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:37:32,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:32 WrapperNode [2018-09-21 18:37:32,880 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:37:32,881 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:37:32,881 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:37:32,881 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:37:32,898 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:32" (1/1) ... [2018-09-21 18:37:32,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:32" (1/1) ... [2018-09-21 18:37:32,912 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:32" (1/1) ... [2018-09-21 18:37:32,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:32" (1/1) ... [2018-09-21 18:37:32,919 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:32" (1/1) ... [2018-09-21 18:37:32,925 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:32" (1/1) ... [2018-09-21 18:37:32,927 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:32" (1/1) ... [2018-09-21 18:37:32,931 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:37:32,931 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:37:32,932 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:37:32,932 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:37:32,933 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:37:33,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:37:33,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:37:33,024 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-09-21 18:37:33,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-09-21 18:37:33,025 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:37:33,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:37:33,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:37:33,025 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-09-21 18:37:33,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:37:33,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-21 18:37:33,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:37:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:37:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:37:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-21 18:37:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-09-21 18:37:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:37:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:37:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:37:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-21 18:37:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:37:33,480 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:37:33,523 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:37:33,680 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:37:33,692 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:37:33,714 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:37:33,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:37:33 BoogieIcfgContainer [2018-09-21 18:37:33,715 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:37:33,716 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:37:33,716 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:37:33,719 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:37:33,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:37:32" (1/3) ... [2018-09-21 18:37:33,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@407fe065 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:37:33, skipping insertion in model container [2018-09-21 18:37:33,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:37:32" (2/3) ... [2018-09-21 18:37:33,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@407fe065 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:37:33, skipping insertion in model container [2018-09-21 18:37:33,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:37:33" (3/3) ... [2018-09-21 18:37:33,723 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1011a_true-unreach-call.c [2018-09-21 18:37:33,733 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:37:33,741 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:37:33,785 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:37:33,786 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:37:33,786 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:37:33,787 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:37:33,787 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:37:33,787 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:37:33,787 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:37:33,787 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:37:33,787 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:37:33,807 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2018-09-21 18:37:33,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-21 18:37:33,819 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:37:33,820 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:37:33,822 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:37:33,828 INFO L82 PathProgramCache]: Analyzing trace with hash 348928086, now seen corresponding path program 1 times [2018-09-21 18:37:33,834 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:37:33,835 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-21 18:37:33,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:37:33,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:37:33,917 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:37:33,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:37:33,935 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:37:33,947 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:37:33,947 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:37:33,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:37:33,963 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:37:33,964 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:37:33,966 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 2 states. [2018-09-21 18:37:33,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:37:33,993 INFO L93 Difference]: Finished difference Result 56 states and 56 transitions. [2018-09-21 18:37:33,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:37:33,995 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-09-21 18:37:33,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:37:34,005 INFO L225 Difference]: With dead ends: 56 [2018-09-21 18:37:34,005 INFO L226 Difference]: Without dead ends: 52 [2018-09-21 18:37:34,007 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:37:34,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-09-21 18:37:34,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-09-21 18:37:34,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-09-21 18:37:34,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2018-09-21 18:37:34,050 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 17 [2018-09-21 18:37:34,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:37:34,050 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2018-09-21 18:37:34,050 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:37:34,051 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2018-09-21 18:37:34,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-09-21 18:37:34,052 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:37:34,055 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:37:34,055 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:37:34,056 INFO L82 PathProgramCache]: Analyzing trace with hash -1290267238, now seen corresponding path program 1 times [2018-09-21 18:37:34,057 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:37:34,057 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-21 18:37:34,062 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:37:34,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:37:34,121 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:37:34,211 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:37:34,227 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:37:34,227 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:37:34,234 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:37:34,312 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:37:34,313 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:37:34,435 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:37:34,452 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:37:34,453 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:37:34,479 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:37:34,505 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:37:34,506 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:37:34,647 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-09-21 18:37:34,651 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-09-21 18:37:34,652 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:37:34,679 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:37:34,695 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:37:34,696 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:19 [2018-09-21 18:37:34,758 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2018-09-21 18:37:34,781 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-09-21 18:37:34,781 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:37:34,811 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:37:34,830 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:37:34,830 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:40, output treesize:25 [2018-09-21 18:37:35,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:37:35,609 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:37:35,623 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:37:35,623 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-21 18:37:35,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-21 18:37:35,625 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-21 18:37:35,629 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2018-09-21 18:37:35,629 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand 13 states. [2018-09-21 18:37:37,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:37:37,391 INFO L93 Difference]: Finished difference Result 52 states and 51 transitions. [2018-09-21 18:37:37,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-21 18:37:37,399 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 35 [2018-09-21 18:37:37,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:37:37,401 INFO L225 Difference]: With dead ends: 52 [2018-09-21 18:37:37,401 INFO L226 Difference]: Without dead ends: 52 [2018-09-21 18:37:37,404 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=99, Invalid=551, Unknown=0, NotChecked=0, Total=650 [2018-09-21 18:37:37,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-09-21 18:37:37,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-09-21 18:37:37,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-09-21 18:37:37,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 51 transitions. [2018-09-21 18:37:37,416 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 51 transitions. Word has length 35 [2018-09-21 18:37:37,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:37:37,416 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 51 transitions. [2018-09-21 18:37:37,418 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-21 18:37:37,418 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 51 transitions. [2018-09-21 18:37:37,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-09-21 18:37:37,420 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:37:37,420 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:37:37,421 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:37:37,421 INFO L82 PathProgramCache]: Analyzing trace with hash -2074034, now seen corresponding path program 1 times [2018-09-21 18:37:37,423 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:37:37,423 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-21 18:37:37,435 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:37:37,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:37:37,501 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:37:37,537 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:37:37,541 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:37:37,541 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:37:37,547 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:37:37,561 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:37:37,561 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:37:37,589 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:37:37,596 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:37:37,597 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:37:37,600 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:37:37,604 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:37:37,604 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:37:37,670 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-09-21 18:37:37,675 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-09-21 18:37:37,676 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:37:37,680 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:37:37,691 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:37:37,691 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:19 [2018-09-21 18:37:37,738 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2018-09-21 18:37:37,745 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-09-21 18:37:37,746 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:37:37,751 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:37:37,762 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:37:37,763 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:40, output treesize:25 [2018-09-21 18:37:38,175 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:37:38,196 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:37:38,196 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:37:38,200 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:37:38,210 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:37:38,211 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:37:38,276 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:37:38,281 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:37:38,281 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:37:38,285 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:37:38,288 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:37:38,288 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:37:38,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:37:38,680 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:37:38,690 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:37:38,690 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2018-09-21 18:37:38,691 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-09-21 18:37:38,691 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-09-21 18:37:38,691 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2018-09-21 18:37:38,692 INFO L87 Difference]: Start difference. First operand 52 states and 51 transitions. Second operand 20 states. [2018-09-21 18:37:41,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:37:41,395 INFO L93 Difference]: Finished difference Result 50 states and 49 transitions. [2018-09-21 18:37:41,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-09-21 18:37:41,396 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 51 [2018-09-21 18:37:41,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:37:41,397 INFO L225 Difference]: With dead ends: 50 [2018-09-21 18:37:41,397 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:37:41,398 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=157, Invalid=1403, Unknown=0, NotChecked=0, Total=1560 [2018-09-21 18:37:41,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:37:41,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:37:41,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:37:41,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:37:41,399 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2018-09-21 18:37:41,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:37:41,400 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:37:41,400 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-09-21 18:37:41,400 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:37:41,400 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:37:41,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:37:41 BoogieIcfgContainer [2018-09-21 18:37:41,405 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:37:41,405 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:37:41,405 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:37:41,405 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:37:41,406 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:37:33" (3/4) ... [2018-09-21 18:37:41,409 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:37:41,415 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:37:41,415 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-09-21 18:37:41,416 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:37:41,416 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-09-21 18:37:41,421 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2018-09-21 18:37:41,422 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-09-21 18:37:41,422 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-21 18:37:41,485 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:37:41,485 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:37:41,486 INFO L168 Benchmark]: Toolchain (without parser) took 8991.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 201.3 MB). Free memory was 953.2 MB in the beginning and 1.2 GB in the end (delta: -235.9 MB). Peak memory consumption was 312.3 MB. Max. memory is 11.5 GB. [2018-09-21 18:37:41,488 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:37:41,488 INFO L168 Benchmark]: CACSL2BoogieTranslator took 381.10 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:37:41,489 INFO L168 Benchmark]: Boogie Preprocessor took 49.96 ms. Allocated memory is still 1.0 GB. Free memory was 942.4 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:37:41,490 INFO L168 Benchmark]: RCFGBuilder took 783.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -166.0 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:37:41,499 INFO L168 Benchmark]: TraceAbstraction took 7688.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 777.6 MB in the end (delta: 325.5 MB). Peak memory consumption was 325.5 MB. Max. memory is 11.5 GB. [2018-09-21 18:37:41,500 INFO L168 Benchmark]: Witness Printer took 80.02 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 71.3 MB). Free memory was 777.6 MB in the beginning and 1.2 GB in the end (delta: -411.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:37:41,509 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 381.10 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 49.96 ms. Allocated memory is still 1.0 GB. Free memory was 942.4 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 783.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -166.0 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7688.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 777.6 MB in the end (delta: 325.5 MB). Peak memory consumption was 325.5 MB. Max. memory is 11.5 GB. * Witness Printer took 80.02 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 71.3 MB). Free memory was 777.6 MB in the beginning and 1.2 GB in the end (delta: -411.6 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: 50]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 56 locations, 1 error locations. SAFE Result, 7.6s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 4.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 125 SDtfs, 71 SDslu, 829 SDs, 0 SdLazy, 477 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 103 NumberOfCodeBlocks, 103 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 100 ConstructedInterpolants, 26 QuantifiedInterpolants, 45908 SizeOfPredicates, 33 NumberOfNonLiveVariables, 204 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...