/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1072b_true-unreach-call.c --full-output --architecture 32bit --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5eb3fea6 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1072b_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 e202c391e3bb616d6f4a88904e6d2705a4dd90a9 --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false .......................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1072b_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 e202c391e3bb616d6f4a88904e6d2705a4dd90a9 --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 18:10:51,711 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:10:51,713 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:10:51,725 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:10:51,726 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:10:51,727 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:10:51,728 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:10:51,730 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:10:51,732 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:10:51,733 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:10:51,733 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:10:51,734 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:10:51,735 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:10:51,736 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:10:51,737 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:10:51,737 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:10:51,738 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:10:51,740 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:10:51,742 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:10:51,744 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:10:51,745 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:10:51,746 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:10:51,749 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:10:51,749 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:10:51,749 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:10:51,750 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:10:51,751 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:10:51,752 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:10:51,753 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:10:51,754 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:10:51,754 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:10:51,755 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:10:51,755 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:10:51,756 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:10:51,757 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:10:51,757 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:10:51,758 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:10:51,783 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:10:51,784 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:10:51,785 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:10:51,786 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:10:51,786 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:10:51,787 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:10:51,787 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:10:51,787 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:10:51,787 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:10:51,789 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:10:51,789 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:10:51,789 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:10:51,789 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:10:51,789 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:10:51,789 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:10:51,790 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:10:51,790 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:10:51,790 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:10:51,790 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:10:51,790 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:10:51,790 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:10:51,791 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:10:51,791 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:10:51,791 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:10:51,791 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:10:51,793 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:10:51,793 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:10:51,793 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:10:51,793 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:10:51,793 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 -> e202c391e3bb616d6f4a88904e6d2705a4dd90a9 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 18:10:51,846 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:10:51,868 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:10:51,872 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:10:51,874 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:10:51,874 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:10:51,875 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1072b_true-unreach-call.c [2018-09-21 18:10:52,228 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f620ffef6/fac05e7d321648598785c63d0946cdbd/FLAG8007bac0f [2018-09-21 18:10:52,426 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:10:52,427 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1072b_true-unreach-call.c [2018-09-21 18:10:52,439 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f620ffef6/fac05e7d321648598785c63d0946cdbd/FLAG8007bac0f [2018-09-21 18:10:52,468 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f620ffef6/fac05e7d321648598785c63d0946cdbd [2018-09-21 18:10:52,473 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:10:52,477 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:10:52,480 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:10:52,481 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:10:52,489 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:10:52,490 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:10:52" (1/1) ... [2018-09-21 18:10:52,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63751dc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:52, skipping insertion in model container [2018-09-21 18:10:52,494 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:10:52" (1/1) ... [2018-09-21 18:10:52,507 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:10:52,743 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:10:52,761 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:10:52,783 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:10:52,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:52 WrapperNode [2018-09-21 18:10:52,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:10:52,814 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:10:52,814 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:10:52,814 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:10:52,830 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:52" (1/1) ... [2018-09-21 18:10:52,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:52" (1/1) ... [2018-09-21 18:10:52,846 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:52" (1/1) ... [2018-09-21 18:10:52,847 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:52" (1/1) ... [2018-09-21 18:10:52,864 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:52" (1/1) ... [2018-09-21 18:10:52,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:52" (1/1) ... [2018-09-21 18:10:52,882 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:52" (1/1) ... [2018-09-21 18:10:52,885 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:10:52,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:10:52,886 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:10:52,886 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:10:52,887 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:52" (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 18:10:53,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:10:53,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:10:53,034 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-21 18:10:53,034 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_double [2018-09-21 18:10:53,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-09-21 18:10:53,034 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:10:53,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:10:53,035 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-21 18:10:53,035 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_double [2018-09-21 18:10:53,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:10:53,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:10:53,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:10:53,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:10:53,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:10:53,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:10:53,036 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-09-21 18:10:53,036 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:10:53,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:10:53,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:10:53,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:10:53,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:10:54,082 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:10:54,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:10:54 BoogieIcfgContainer [2018-09-21 18:10:54,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:10:54,084 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:10:54,084 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:10:54,087 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:10:54,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:10:52" (1/3) ... [2018-09-21 18:10:54,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25273e16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:10:54, skipping insertion in model container [2018-09-21 18:10:54,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:52" (2/3) ... [2018-09-21 18:10:54,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25273e16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:10:54, skipping insertion in model container [2018-09-21 18:10:54,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:10:54" (3/3) ... [2018-09-21 18:10:54,091 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1072b_true-unreach-call.c [2018-09-21 18:10:54,102 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:10:54,114 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:10:54,172 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:10:54,173 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:10:54,173 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:10:54,173 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:10:54,174 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:10:54,174 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:10:54,175 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:10:54,175 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:10:54,175 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:10:54,207 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states. [2018-09-21 18:10:54,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-21 18:10:54,235 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:10:54,236 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:10:54,239 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:10:54,245 INFO L82 PathProgramCache]: Analyzing trace with hash 702241209, now seen corresponding path program 1 times [2018-09-21 18:10:54,246 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:10:54,247 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:10:54,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:10:54,303 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:10:54,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:10:54,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:10:54,387 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 18:10:54,390 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:10:54,390 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:10:54,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:10:54,411 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:10:54,413 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:10:54,416 INFO L87 Difference]: Start difference. First operand 91 states. Second operand 2 states. [2018-09-21 18:10:54,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:10:54,441 INFO L93 Difference]: Finished difference Result 91 states and 95 transitions. [2018-09-21 18:10:54,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:10:54,443 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-09-21 18:10:54,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:10:54,462 INFO L225 Difference]: With dead ends: 91 [2018-09-21 18:10:54,462 INFO L226 Difference]: Without dead ends: 87 [2018-09-21 18:10:54,464 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 18:10:54,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-09-21 18:10:54,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2018-09-21 18:10:54,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-09-21 18:10:54,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 91 transitions. [2018-09-21 18:10:54,520 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 91 transitions. Word has length 19 [2018-09-21 18:10:54,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:10:54,522 INFO L480 AbstractCegarLoop]: Abstraction has 87 states and 91 transitions. [2018-09-21 18:10:54,522 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:10:54,522 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 91 transitions. [2018-09-21 18:10:54,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-21 18:10:54,523 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:10:54,526 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] [2018-09-21 18:10:54,526 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:10:54,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1356287241, now seen corresponding path program 1 times [2018-09-21 18:10:54,527 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:10:54,528 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:10:54,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:10:54,530 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:10:54,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:10:54,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:10:54,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:10:54,685 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:10:54,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:10:54 BoogieIcfgContainer [2018-09-21 18:10:54,722 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:10:54,723 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:10:54,723 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:10:54,723 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:10:54,724 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:10:54" (3/4) ... [2018-09-21 18:10:54,727 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 18:10:54,727 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:10:54,728 INFO L168 Benchmark]: Toolchain (without parser) took 2254.19 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 953.2 MB in the beginning and 1.0 GB in the end (delta: -92.7 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:10:54,730 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 18:10:54,731 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.18 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:10:54,732 INFO L168 Benchmark]: Boogie Preprocessor took 71.44 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 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 18:10:54,733 INFO L168 Benchmark]: RCFGBuilder took 1196.91 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -129.2 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. [2018-09-21 18:10:54,734 INFO L168 Benchmark]: TraceAbstraction took 638.62 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: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:10:54,735 INFO L168 Benchmark]: Witness Printer took 4.77 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. [2018-09-21 18:10:54,739 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 333.18 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 71.44 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 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 1196.91 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -129.2 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 638.62 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: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Witness Printer took 4.77 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: 86]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 85, overapproximation of bitwiseAnd at line 28, overapproximation of someBinaryArithmeticDOUBLEoperation at line 49. Possible FailurePath: [L81] double x = 0.0; VAL [x=0] [L82] CALL, EXPR trunc_double(x) VAL [\old(x)=0] [L18] int signbit; [L19] int msw; [L20] unsigned int lsw; [L21] int exponent_less_1023; VAL [\old(x)=0, x=0] [L23] FCALL ieee_double_shape_type ew_u; VAL [\old(x)=0, ew_u={6442450945:0}, x=0] [L24] FCALL ew_u.value = (x) VAL [\old(x)=0, ew_u={6442450945:0}, x=0] [L25] EXPR, FCALL ew_u.parts.msw VAL [\old(x)=0, ew_u={6442450945:0}, ew_u.parts.msw=6442450943, x=0] [L25] (msw) = ew_u.parts.msw VAL [\old(x)=0, ew_u={6442450945:0}, ew_u.parts.msw=6442450943, msw=2147483647, x=0] [L25] FCALL (msw) = ew_u.parts.msw VAL [(msw) = ew_u.parts.msw=6442450949, \old(x)=0, ew_u={6442450945:0}, ew_u.parts.msw=6442450943, msw=2147483647, x=0] [L26] EXPR, FCALL ew_u.parts.lsw VAL [\old(x)=0, ew_u={6442450945:0}, ew_u.parts.lsw=6442450946, msw=2147483647, x=0] [L26] (lsw) = ew_u.parts.lsw VAL [\old(x)=0, ew_u={6442450945:0}, ew_u.parts.lsw=6442450946, lsw=2147483650, msw=2147483647, x=0] [L26] FCALL (lsw) = ew_u.parts.lsw VAL [(lsw) = ew_u.parts.lsw=6442450947, \old(x)=0, ew_u={6442450945:0}, ew_u.parts.lsw=6442450946, lsw=2147483650, msw=2147483647, x=0] [L27] COND FALSE !(0) VAL [\old(x)=0, lsw=2147483650, msw=2147483647, x=0] [L28] signbit = msw & 0x80000000 [L29] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 VAL [\old(x)=0, exponent_less_1023=1024, lsw=2147483650, msw=2147483647, signbit=-1, x=0] [L30] COND FALSE !(exponent_less_1023 < 20) VAL [\old(x)=0, exponent_less_1023=1024, lsw=2147483650, msw=2147483647, signbit=-1, x=0] [L47] COND TRUE exponent_less_1023 > 51 VAL [\old(x)=0, exponent_less_1023=1024, lsw=2147483650, msw=2147483647, signbit=-1, x=0] [L48] COND TRUE exponent_less_1023 == 1024 [L49] RET return x + x; VAL [\old(x)=0, exponent_less_1023=1024, lsw=2147483650, msw=2147483647, signbit=-1, x=0] [L82] EXPR trunc_double(x) VAL [trunc_double(x)=6442450948, x=0] [L82] double res = trunc_double(x); [L85] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [res=6442450948, res == 0.0 && __signbit_double(res) == 0=0, x=0] [L85] COND FALSE, EXPR !(res == 0.0 && __signbit_double(res) == 0) VAL [res=6442450948, res == 0.0 && __signbit_double(res) == 0=0, x=0] [L85] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L86] __VERIFIER_error() VAL [res=6442450948, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 94 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 95 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=91occurred 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, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 324 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 18:10:57,033 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:10:57,035 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:10:57,047 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:10:57,048 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:10:57,049 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:10:57,050 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:10:57,052 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:10:57,054 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:10:57,055 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:10:57,056 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:10:57,057 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:10:57,058 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:10:57,059 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:10:57,060 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:10:57,061 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:10:57,062 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:10:57,064 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:10:57,066 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:10:57,068 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:10:57,069 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:10:57,071 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:10:57,073 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:10:57,074 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:10:57,074 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:10:57,075 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:10:57,076 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:10:57,077 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:10:57,078 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:10:57,079 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:10:57,080 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:10:57,081 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:10:57,081 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:10:57,081 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:10:57,082 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:10:57,083 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:10:57,084 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:10:57,099 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:10:57,100 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:10:57,101 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:10:57,101 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:10:57,102 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:10:57,102 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:10:57,102 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:10:57,102 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:10:57,103 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:10:57,103 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:10:57,103 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:10:57,103 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:10:57,103 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:10:57,103 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:10:57,104 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:10:57,104 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:10:57,104 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:10:57,104 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:10:57,104 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:10:57,106 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:10:57,106 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:10:57,106 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:10:57,107 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:10:57,107 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:10:57,107 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:10:57,107 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:10:57,107 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:10:57,108 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:10:57,108 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:10:57,108 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:10:57,108 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:10:57,108 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 -> e202c391e3bb616d6f4a88904e6d2705a4dd90a9 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 18:10:57,159 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:10:57,172 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:10:57,175 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:10:57,177 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:10:57,177 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:10:57,178 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1072b_true-unreach-call.c [2018-09-21 18:10:57,518 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42c2756a1/d84955e7490642b384012e6dcd5c4e22/FLAG8a7941c0f [2018-09-21 18:10:57,648 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:10:57,649 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1072b_true-unreach-call.c [2018-09-21 18:10:57,657 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42c2756a1/d84955e7490642b384012e6dcd5c4e22/FLAG8a7941c0f [2018-09-21 18:10:57,677 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42c2756a1/d84955e7490642b384012e6dcd5c4e22 [2018-09-21 18:10:57,682 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:10:57,685 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:10:57,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:10:57,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:10:57,694 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:10:57,695 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:10:57" (1/1) ... [2018-09-21 18:10:57,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ef84969 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:57, skipping insertion in model container [2018-09-21 18:10:57,699 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:10:57" (1/1) ... [2018-09-21 18:10:57,711 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:10:57,959 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:10:57,982 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:10:58,007 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:10:58,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:58 WrapperNode [2018-09-21 18:10:58,063 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:10:58,064 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:10:58,064 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:10:58,064 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:10:58,085 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:58" (1/1) ... [2018-09-21 18:10:58,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:58" (1/1) ... [2018-09-21 18:10:58,113 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:58" (1/1) ... [2018-09-21 18:10:58,114 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:58" (1/1) ... [2018-09-21 18:10:58,136 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:58" (1/1) ... [2018-09-21 18:10:58,146 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:58" (1/1) ... [2018-09-21 18:10:58,151 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:58" (1/1) ... [2018-09-21 18:10:58,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:10:58,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:10:58,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:10:58,164 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:10:58,165 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:58" (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 [2018-09-21 18:10:58,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:10:58,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:10:58,305 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-21 18:10:58,306 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_double [2018-09-21 18:10:58,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-09-21 18:10:58,306 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:10:58,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:10:58,306 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-21 18:10:58,306 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_double [2018-09-21 18:10:58,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:10:58,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-21 18:10:58,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:10:58,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:10:58,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:10:58,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-21 18:10:58,307 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-09-21 18:10:58,307 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:10:58,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:10:58,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:10:58,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:10:58,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-21 18:10:58,604 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:10:58,648 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:10:58,903 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:10:58,920 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:10:58,935 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:10:59,174 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:10:59,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:10:59 BoogieIcfgContainer [2018-09-21 18:10:59,175 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:10:59,176 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:10:59,176 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:10:59,180 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:10:59,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:10:57" (1/3) ... [2018-09-21 18:10:59,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@691e8f40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:10:59, skipping insertion in model container [2018-09-21 18:10:59,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:10:58" (2/3) ... [2018-09-21 18:10:59,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@691e8f40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:10:59, skipping insertion in model container [2018-09-21 18:10:59,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:10:59" (3/3) ... [2018-09-21 18:10:59,185 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1072b_true-unreach-call.c [2018-09-21 18:10:59,197 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:10:59,207 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:10:59,256 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:10:59,257 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:10:59,257 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:10:59,257 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:10:59,258 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:10:59,258 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:10:59,258 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:10:59,258 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:10:59,258 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:10:59,278 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states. [2018-09-21 18:10:59,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-21 18:10:59,292 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:10:59,293 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:10:59,295 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:10:59,301 INFO L82 PathProgramCache]: Analyzing trace with hash 702241209, now seen corresponding path program 1 times [2018-09-21 18:10:59,307 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:10:59,308 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) [2018-09-21 18:10:59,321 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-21 18:10:59,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:10:59,455 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:10:59,487 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 18:10:59,488 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:10:59,508 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:10:59,508 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:10:59,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:10:59,531 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:10:59,532 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:10:59,535 INFO L87 Difference]: Start difference. First operand 91 states. Second operand 2 states. [2018-09-21 18:10:59,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:10:59,559 INFO L93 Difference]: Finished difference Result 91 states and 95 transitions. [2018-09-21 18:10:59,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:10:59,560 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-09-21 18:10:59,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:10:59,574 INFO L225 Difference]: With dead ends: 91 [2018-09-21 18:10:59,574 INFO L226 Difference]: Without dead ends: 87 [2018-09-21 18:10:59,576 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:10:59,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-09-21 18:10:59,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2018-09-21 18:10:59,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-09-21 18:10:59,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 91 transitions. [2018-09-21 18:10:59,626 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 91 transitions. Word has length 19 [2018-09-21 18:10:59,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:10:59,627 INFO L480 AbstractCegarLoop]: Abstraction has 87 states and 91 transitions. [2018-09-21 18:10:59,628 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:10:59,628 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 91 transitions. [2018-09-21 18:10:59,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-21 18:10:59,633 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:10:59,633 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] [2018-09-21 18:10:59,634 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:10:59,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1356287241, now seen corresponding path program 1 times [2018-09-21 18:10:59,635 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:10:59,636 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) [2018-09-21 18:10:59,645 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-21 18:10:59,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:10:59,748 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:10:59,878 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-21 18:10:59,889 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-21 18:10:59,891 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:10:59,899 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:10:59,918 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 18:10:59,918 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:10:59,971 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-21 18:10:59,977 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-21 18:10:59,977 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:10:59,991 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:00,002 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:11:00,003 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:11:00,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:11:00,547 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:11:00,562 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:11:00,563 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:11:00,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:11:00,565 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:11:00,566 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:11:00,566 INFO L87 Difference]: Start difference. First operand 87 states and 91 transitions. Second operand 9 states. [2018-09-21 18:11:02,006 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-21 18:11:03,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:11:03,256 INFO L93 Difference]: Finished difference Result 93 states and 95 transitions. [2018-09-21 18:11:03,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-21 18:11:03,258 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 32 [2018-09-21 18:11:03,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:11:03,260 INFO L225 Difference]: With dead ends: 93 [2018-09-21 18:11:03,260 INFO L226 Difference]: Without dead ends: 73 [2018-09-21 18:11:03,262 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2018-09-21 18:11:03,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-09-21 18:11:03,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2018-09-21 18:11:03,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-09-21 18:11:03,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 74 transitions. [2018-09-21 18:11:03,271 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 74 transitions. Word has length 32 [2018-09-21 18:11:03,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:11:03,272 INFO L480 AbstractCegarLoop]: Abstraction has 73 states and 74 transitions. [2018-09-21 18:11:03,272 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:11:03,272 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 74 transitions. [2018-09-21 18:11:03,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-09-21 18:11:03,274 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:11:03,274 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:11:03,274 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:11:03,275 INFO L82 PathProgramCache]: Analyzing trace with hash -1947951390, now seen corresponding path program 1 times [2018-09-21 18:11:03,275 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:11:03,276 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-21 18:11:03,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:11:03,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:11:03,370 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:11:03,460 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-21 18:11:03,475 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-21 18:11:03,476 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:11:03,491 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:03,510 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:11:03,511 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:11:03,554 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-21 18:11:03,560 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-21 18:11:03,561 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:11:03,565 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:03,582 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:11:03,582 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:11:03,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:11:03,826 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:11:03,840 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:11:03,841 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:11:03,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:11:03,842 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:11:03,842 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:11:03,842 INFO L87 Difference]: Start difference. First operand 73 states and 74 transitions. Second operand 9 states. [2018-09-21 18:11:04,388 WARN L178 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-21 18:11:05,184 WARN L178 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-21 18:11:05,382 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2018-09-21 18:11:05,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:11:05,823 INFO L93 Difference]: Finished difference Result 76 states and 76 transitions. [2018-09-21 18:11:05,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-21 18:11:05,825 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 44 [2018-09-21 18:11:05,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:11:05,827 INFO L225 Difference]: With dead ends: 76 [2018-09-21 18:11:05,827 INFO L226 Difference]: Without dead ends: 61 [2018-09-21 18:11:05,827 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2018-09-21 18:11:05,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-09-21 18:11:05,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-09-21 18:11:05,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-09-21 18:11:05,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 61 transitions. [2018-09-21 18:11:05,834 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 61 transitions. Word has length 44 [2018-09-21 18:11:05,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:11:05,835 INFO L480 AbstractCegarLoop]: Abstraction has 61 states and 61 transitions. [2018-09-21 18:11:05,835 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:11:05,835 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2018-09-21 18:11:05,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-09-21 18:11:05,837 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:11:05,837 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:11:05,837 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:11:05,838 INFO L82 PathProgramCache]: Analyzing trace with hash -671735205, now seen corresponding path program 1 times [2018-09-21 18:11:05,838 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:11:05,838 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-21 18:11:05,849 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:11:05,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:11:05,959 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:11:06,035 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 15 treesize of output 12 [2018-09-21 18:11:06,054 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 12 treesize of output 11 [2018-09-21 18:11:06,055 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:11:06,069 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:06,080 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:11:06,081 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:11 [2018-09-21 18:11:06,102 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2018-09-21 18:11:06,112 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:11:06,115 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 25 [2018-09-21 18:11:06,117 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:11:06,138 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:06,150 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:11:06,151 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:19 [2018-09-21 18:11:06,182 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 48 [2018-09-21 18:11:06,188 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:11:06,193 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 28 [2018-09-21 18:11:06,194 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:11:06,201 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:06,205 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:11:06,206 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:64, output treesize:21 [2018-09-21 18:11:06,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:11:06,423 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:11:06,433 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:11:06,433 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-21 18:11:06,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-21 18:11:06,434 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-21 18:11:06,435 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-09-21 18:11:06,435 INFO L87 Difference]: Start difference. First operand 61 states and 61 transitions. Second operand 10 states. [2018-09-21 18:11:07,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:11:07,185 INFO L93 Difference]: Finished difference Result 61 states and 60 transitions. [2018-09-21 18:11:07,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-21 18:11:07,186 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 44 [2018-09-21 18:11:07,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:11:07,187 INFO L225 Difference]: With dead ends: 61 [2018-09-21 18:11:07,188 INFO L226 Difference]: Without dead ends: 61 [2018-09-21 18:11:07,188 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-21 18:11:07,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-09-21 18:11:07,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-09-21 18:11:07,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-09-21 18:11:07,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 60 transitions. [2018-09-21 18:11:07,197 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 60 transitions. Word has length 44 [2018-09-21 18:11:07,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:11:07,197 INFO L480 AbstractCegarLoop]: Abstraction has 61 states and 60 transitions. [2018-09-21 18:11:07,197 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-21 18:11:07,198 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 60 transitions. [2018-09-21 18:11:07,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-09-21 18:11:07,200 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:11:07,201 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:11:07,201 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:11:07,201 INFO L82 PathProgramCache]: Analyzing trace with hash -1271085422, now seen corresponding path program 1 times [2018-09-21 18:11:07,202 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:11:07,202 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-21 18:11:07,218 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:11:07,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:11:07,367 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:11:07,401 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-21 18:11:07,408 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-21 18:11:07,408 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:11:07,413 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:07,437 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:11:07,437 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:11:07,479 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-21 18:11:07,483 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-21 18:11:07,484 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:11:07,488 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:07,505 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:11:07,506 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:11:07,636 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 16 treesize of output 13 [2018-09-21 18:11:07,645 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 13 treesize of output 12 [2018-09-21 18:11:07,645 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:11:07,651 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:07,669 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:11:07,670 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:22 [2018-09-21 18:11:07,737 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 24 treesize of output 19 [2018-09-21 18:11:07,745 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:11:07,751 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 26 [2018-09-21 18:11:07,752 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:11:07,769 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:07,788 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:11:07,788 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:33, output treesize:29 [2018-09-21 18:11:07,852 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 65 treesize of output 49 [2018-09-21 18:11:07,862 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:11:07,867 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 31 [2018-09-21 18:11:07,868 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:11:07,876 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:07,888 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:11:07,889 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:74, output treesize:34 [2018-09-21 18:11:08,649 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-21 18:11:08,654 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-21 18:11:08,655 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:11:08,661 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:08,675 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:11:08,675 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:11:08,825 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-21 18:11:08,836 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-21 18:11:08,836 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:11:08,839 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:08,851 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:11:08,851 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:11:09,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:11:09,502 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:11:09,517 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:11:09,517 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2018-09-21 18:11:09,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-09-21 18:11:09,518 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-09-21 18:11:09,518 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=420, Unknown=0, NotChecked=0, Total=462 [2018-09-21 18:11:09,518 INFO L87 Difference]: Start difference. First operand 61 states and 60 transitions. Second operand 22 states. [2018-09-21 18:11:10,395 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-21 18:11:11,977 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-09-21 18:11:15,695 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2018-09-21 18:11:15,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:11:15,877 INFO L93 Difference]: Finished difference Result 59 states and 58 transitions. [2018-09-21 18:11:15,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-09-21 18:11:15,878 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 60 [2018-09-21 18:11:15,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:11:15,879 INFO L225 Difference]: With dead ends: 59 [2018-09-21 18:11:15,879 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:11:15,881 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=201, Invalid=1779, Unknown=0, NotChecked=0, Total=1980 [2018-09-21 18:11:15,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:11:15,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:11:15,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:11:15,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:11:15,882 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 60 [2018-09-21 18:11:15,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:11:15,883 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:11:15,883 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-09-21 18:11:15,884 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:11:15,884 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:11:15,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:11:15 BoogieIcfgContainer [2018-09-21 18:11:15,889 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:11:15,890 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:11:15,890 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:11:15,890 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:11:15,891 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:10:59" (3/4) ... [2018-09-21 18:11:15,895 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:11:15,902 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_double [2018-09-21 18:11:15,902 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:11:15,902 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_double [2018-09-21 18:11:15,902 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:11:15,903 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure trunc_double [2018-09-21 18:11:15,908 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2018-09-21 18:11:15,909 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-09-21 18:11:15,909 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-21 18:11:15,977 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:11:15,978 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:11:15,979 INFO L168 Benchmark]: Toolchain (without parser) took 18296.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 199.2 MB). Free memory was 951.8 MB in the beginning and 953.0 MB in the end (delta: -1.1 MB). Peak memory consumption was 198.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:15,980 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:11:15,981 INFO L168 Benchmark]: CACSL2BoogieTranslator took 376.81 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:15,981 INFO L168 Benchmark]: Boogie Preprocessor took 99.04 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:15,982 INFO L168 Benchmark]: RCFGBuilder took 1011.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -160.8 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:15,984 INFO L168 Benchmark]: TraceAbstraction took 16713.14 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 63.4 MB). Free memory was 1.1 GB in the beginning and 953.0 MB in the end (delta: 143.6 MB). Peak memory consumption was 207.0 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:15,985 INFO L168 Benchmark]: Witness Printer took 88.15 ms. Allocated memory is still 1.2 GB. Free memory is still 953.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:11:15,988 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 376.81 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 99.04 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1011.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -160.8 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 16713.14 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 63.4 MB). Free memory was 1.1 GB in the beginning and 953.0 MB in the end (delta: 143.6 MB). Peak memory consumption was 207.0 MB. Max. memory is 11.5 GB. * Witness Printer took 88.15 ms. Allocated memory is still 1.2 GB. Free memory is still 953.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 86]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 94 locations, 1 error locations. SAFE Result, 16.6s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 11.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 309 SDtfs, 347 SDslu, 1513 SDs, 0 SdLazy, 786 SolverSat, 48 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 243 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 8.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=91occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 199 NumberOfCodeBlocks, 199 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 194 ConstructedInterpolants, 106 QuantifiedInterpolants, 110067 SizeOfPredicates, 45 NumberOfNonLiveVariables, 387 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...