./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0960b.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0960b.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 78c6d2d68aa498895f40ed0a4a24644b21119801 ............................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0960b.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 78c6d2d68aa498895f40ed0a4a24644b21119801 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 17:41:28,730 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:41:28,732 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:41:28,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:41:28,746 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:41:28,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:41:28,749 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:41:28,751 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:41:28,753 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:41:28,755 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:41:28,756 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:41:28,757 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:41:28,757 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:41:28,759 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:41:28,760 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:41:28,761 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:41:28,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:41:28,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:41:28,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:41:28,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:41:28,769 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:41:28,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:41:28,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:41:28,773 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:41:28,776 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:41:28,776 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:41:28,777 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:41:28,778 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:41:28,778 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:41:28,779 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:41:28,780 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:41:28,780 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:41:28,781 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:41:28,782 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:41:28,783 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:41:28,784 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:41:28,785 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:41:28,785 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:41:28,785 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:41:28,786 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:41:28,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:41:28,788 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 17:41:28,804 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:41:28,804 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:41:28,806 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:41:28,806 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:41:28,806 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:41:28,807 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:41:28,807 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:41:28,807 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 17:41:28,807 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:41:28,808 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:41:28,808 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:41:28,808 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:41:28,808 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:41:28,809 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:41:28,809 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:41:28,809 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:41:28,810 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:41:28,810 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:41:28,810 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:41:28,810 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:41:28,811 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:41:28,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:41:28,811 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:41:28,812 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:41:28,812 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:41:28,812 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 17:41:28,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 17:41:28,813 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:41:28,813 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:41:28,813 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78c6d2d68aa498895f40ed0a4a24644b21119801 [2020-07-28 17:41:29,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:41:29,179 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:41:29,183 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:41:29,185 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:41:29,185 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:41:29,186 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0960b.c [2020-07-28 17:41:29,268 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a96383d02/709b0d3cc8e14df499ae1671541a9999/FLAG511836b9c [2020-07-28 17:41:29,819 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:41:29,820 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0960b.c [2020-07-28 17:41:29,832 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a96383d02/709b0d3cc8e14df499ae1671541a9999/FLAG511836b9c [2020-07-28 17:41:30,148 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a96383d02/709b0d3cc8e14df499ae1671541a9999 [2020-07-28 17:41:30,152 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:41:30,156 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:41:30,157 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:41:30,158 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:41:30,162 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:41:30,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:41:30" (1/1) ... [2020-07-28 17:41:30,167 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26af0012 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:30, skipping insertion in model container [2020-07-28 17:41:30,168 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:41:30" (1/1) ... [2020-07-28 17:41:30,176 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:41:30,221 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:41:30,457 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:41:30,522 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:41:30,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:41:30,622 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:41:30,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:30 WrapperNode [2020-07-28 17:41:30,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:41:30,624 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:41:30,624 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:41:30,624 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:41:30,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:30" (1/1) ... [2020-07-28 17:41:30,648 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:30" (1/1) ... [2020-07-28 17:41:30,704 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:41:30,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:41:30,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:41:30,705 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:41:30,718 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:30" (1/1) ... [2020-07-28 17:41:30,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:30" (1/1) ... [2020-07-28 17:41:30,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:30" (1/1) ... [2020-07-28 17:41:30,726 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:30" (1/1) ... [2020-07-28 17:41:30,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:30" (1/1) ... [2020-07-28 17:41:30,751 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:30" (1/1) ... [2020-07-28 17:41:30,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:30" (1/1) ... [2020-07-28 17:41:30,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:41:30,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:41:30,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:41:30,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:41:30,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:30" (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 [2020-07-28 17:41:30,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:41:30,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-28 17:41:30,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 17:41:30,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-28 17:41:30,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:41:30,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:41:30,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-28 17:41:30,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:41:31,554 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:41:31,554 INFO L295 CfgBuilder]: Removed 24 assume(true) statements. [2020-07-28 17:41:31,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:41:31 BoogieIcfgContainer [2020-07-28 17:41:31,559 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:41:31,561 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:41:31,561 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:41:31,565 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:41:31,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:41:30" (1/3) ... [2020-07-28 17:41:31,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36ece347 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:41:31, skipping insertion in model container [2020-07-28 17:41:31,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:30" (2/3) ... [2020-07-28 17:41:31,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36ece347 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:41:31, skipping insertion in model container [2020-07-28 17:41:31,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:41:31" (3/3) ... [2020-07-28 17:41:31,570 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0960b.c [2020-07-28 17:41:31,581 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:41:31,591 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:41:31,608 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:41:31,635 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:41:31,636 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:41:31,636 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:41:31,636 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:41:31,637 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:41:31,637 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:41:31,637 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:41:31,638 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:41:31,656 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-07-28 17:41:31,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-28 17:41:31,664 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:41:31,665 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:41:31,665 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:41:31,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:41:31,672 INFO L82 PathProgramCache]: Analyzing trace with hash -306140874, now seen corresponding path program 1 times [2020-07-28 17:41:31,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:41:31,682 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314802313] [2020-07-28 17:41:31,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:41:31,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:41:31,837 INFO L280 TraceCheckUtils]: 0: Hoare triple {48#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~ln2_hi_log~0 := 0.6931471803691238;~ln2_lo_log~0 := 1.9082149292705877E-10;~two54_log~0 := 1.8014398509481984E16;~Lg1_log~0 := 0.6666666666666735;~Lg2_log~0 := 0.3999999999940942;~Lg3_log~0 := 0.2857142874366239;~Lg4_log~0 := 0.22222198432149784;~Lg5_log~0 := 0.1818357216161805;~Lg6_log~0 := 0.15313837699209373;~Lg7_log~0 := 0.14798198605116586;~zero~0 := 0.0;~two54_log10~0 := 1.8014398509481984E16;~ivln10_log10~0 := 0.4342944819032518;~log10_2hi_log10~0 := 0.30102999566361177;~log10_2lo_log10~0 := 3.694239077158931E-13;~zero_log10~0 := 0.0; {48#true} is VALID [2020-07-28 17:41:31,838 INFO L280 TraceCheckUtils]: 1: Hoare triple {48#true} havoc main_#res;havoc main_#t~ret21, main_#t~ret22, main_~x~0, main_~res~0;main_~x~0 := ~someUnaryDOUBLEoperation(0.0);__ieee754_log10_#in~x := main_~x~0;havoc __ieee754_log10_#res;havoc __ieee754_log10_#t~mem12, __ieee754_log10_#t~union13, __ieee754_log10_#t~mem14, __ieee754_log10_#t~union15, __ieee754_log10_~#ew_u~2.base, __ieee754_log10_~#ew_u~2.offset, __ieee754_log10_#t~mem16, __ieee754_log10_#t~union17, __ieee754_log10_~#gh_u~1.base, __ieee754_log10_~#gh_u~1.offset, __ieee754_log10_#t~mem18, __ieee754_log10_#t~union19.lsw, __ieee754_log10_#t~union19.msw, __ieee754_log10_~#sh_u~1.base, __ieee754_log10_~#sh_u~1.offset, __ieee754_log10_#t~ret20, __ieee754_log10_~x, __ieee754_log10_~y~0, __ieee754_log10_~z~1, __ieee754_log10_~i~1, __ieee754_log10_~k~1, __ieee754_log10_~hx~2, __ieee754_log10_~lx~2;__ieee754_log10_~x := __ieee754_log10_#in~x;havoc __ieee754_log10_~y~0;havoc __ieee754_log10_~z~1;havoc __ieee754_log10_~i~1;havoc __ieee754_log10_~k~1;havoc __ieee754_log10_~hx~2;havoc __ieee754_log10_~lx~2; {48#true} is VALID [2020-07-28 17:41:31,840 INFO L280 TraceCheckUtils]: 2: Hoare triple {48#true} assume !true; {49#false} is VALID [2020-07-28 17:41:31,840 INFO L280 TraceCheckUtils]: 3: Hoare triple {49#false} __ieee754_log10_~k~1 := 0; {49#false} is VALID [2020-07-28 17:41:31,840 INFO L280 TraceCheckUtils]: 4: Hoare triple {49#false} assume __ieee754_log10_~hx~2 < 1048576; {49#false} is VALID [2020-07-28 17:41:31,841 INFO L280 TraceCheckUtils]: 5: Hoare triple {49#false} assume 0 == ~bitwiseOr(~bitwiseAnd(__ieee754_log10_~hx~2, 2147483647), __ieee754_log10_~lx~2) % 4294967296;__ieee754_log10_#res := ~someBinaryArithmeticDOUBLEoperation(~someUnaryDOUBLEoperation(~two54_log10~0), ~zero_log10~0); {49#false} is VALID [2020-07-28 17:41:31,841 INFO L280 TraceCheckUtils]: 6: Hoare triple {49#false} main_#t~ret21 := __ieee754_log10_#res;main_~res~0 := main_#t~ret21;havoc main_#t~ret21;isinf_double_#in~x := main_~res~0;havoc isinf_double_#res;havoc isinf_double_#t~mem0, isinf_double_#t~union1, isinf_double_#t~mem2, isinf_double_#t~union3, isinf_double_~#ew_u~0.base, isinf_double_~#ew_u~0.offset, isinf_double_~x, isinf_double_~hx~0, isinf_double_~lx~0;isinf_double_~x := isinf_double_#in~x;havoc isinf_double_~hx~0;havoc isinf_double_~lx~0; {49#false} is VALID [2020-07-28 17:41:31,842 INFO L280 TraceCheckUtils]: 7: Hoare triple {49#false} assume !true; {49#false} is VALID [2020-07-28 17:41:31,842 INFO L280 TraceCheckUtils]: 8: Hoare triple {49#false} isinf_double_~hx~0 := ~bitwiseAnd(isinf_double_~hx~0, 2147483647);isinf_double_~hx~0 := (if ~bitwiseOr(isinf_double_~hx~0, ~bitwiseOr(isinf_double_~lx~0, -isinf_double_~lx~0) / 2147483648) % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseOr(isinf_double_~hx~0, ~bitwiseOr(isinf_double_~lx~0, -isinf_double_~lx~0) / 2147483648) % 4294967296 % 4294967296 else ~bitwiseOr(isinf_double_~hx~0, ~bitwiseOr(isinf_double_~lx~0, -isinf_double_~lx~0) / 2147483648) % 4294967296 % 4294967296 - 4294967296);isinf_double_~hx~0 := 2146435072 - isinf_double_~hx~0;isinf_double_#res := 1 - (if ~bitwiseOr(isinf_double_~hx~0, -isinf_double_~hx~0) / 2147483648 % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseOr(isinf_double_~hx~0, -isinf_double_~hx~0) / 2147483648 % 4294967296 % 4294967296 else ~bitwiseOr(isinf_double_~hx~0, -isinf_double_~hx~0) / 2147483648 % 4294967296 % 4294967296 - 4294967296); {49#false} is VALID [2020-07-28 17:41:31,843 INFO L280 TraceCheckUtils]: 9: Hoare triple {49#false} main_#t~ret22 := isinf_double_#res;assume -2147483648 <= main_#t~ret22 && main_#t~ret22 <= 2147483647; {49#false} is VALID [2020-07-28 17:41:31,843 INFO L280 TraceCheckUtils]: 10: Hoare triple {49#false} assume 0 == main_#t~ret22;havoc main_#t~ret22; {49#false} is VALID [2020-07-28 17:41:31,843 INFO L280 TraceCheckUtils]: 11: Hoare triple {49#false} assume !false; {49#false} is VALID [2020-07-28 17:41:31,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:41:31,847 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314802313] [2020-07-28 17:41:31,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:41:31,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 17:41:31,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238355143] [2020-07-28 17:41:31,857 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-07-28 17:41:31,858 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:41:31,863 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 17:41:31,895 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:41:31,896 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 17:41:31,896 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 17:41:31,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 17:41:31,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:41:31,909 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2020-07-28 17:41:32,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:41:32,036 INFO L93 Difference]: Finished difference Result 88 states and 146 transitions. [2020-07-28 17:41:32,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 17:41:32,036 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-07-28 17:41:32,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:41:32,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:41:32,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 146 transitions. [2020-07-28 17:41:32,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:41:32,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 146 transitions. [2020-07-28 17:41:32,053 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 146 transitions. [2020-07-28 17:41:32,284 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 146 edges. 146 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:41:32,299 INFO L225 Difference]: With dead ends: 88 [2020-07-28 17:41:32,299 INFO L226 Difference]: Without dead ends: 42 [2020-07-28 17:41:32,303 INFO L675 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 [2020-07-28 17:41:32,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-07-28 17:41:32,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-07-28 17:41:32,347 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:41:32,347 INFO L82 GeneralOperation]: Start isEquivalent. First operand 42 states. Second operand 42 states. [2020-07-28 17:41:32,348 INFO L74 IsIncluded]: Start isIncluded. First operand 42 states. Second operand 42 states. [2020-07-28 17:41:32,348 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 42 states. [2020-07-28 17:41:32,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:41:32,353 INFO L93 Difference]: Finished difference Result 42 states and 56 transitions. [2020-07-28 17:41:32,354 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2020-07-28 17:41:32,354 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:41:32,355 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:41:32,355 INFO L74 IsIncluded]: Start isIncluded. First operand 42 states. Second operand 42 states. [2020-07-28 17:41:32,355 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 42 states. [2020-07-28 17:41:32,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:41:32,359 INFO L93 Difference]: Finished difference Result 42 states and 56 transitions. [2020-07-28 17:41:32,359 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2020-07-28 17:41:32,360 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:41:32,360 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:41:32,360 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:41:32,361 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:41:32,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-07-28 17:41:32,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 56 transitions. [2020-07-28 17:41:32,365 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 56 transitions. Word has length 12 [2020-07-28 17:41:32,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:41:32,366 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 56 transitions. [2020-07-28 17:41:32,366 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 17:41:32,366 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2020-07-28 17:41:32,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-28 17:41:32,367 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:41:32,368 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:41:32,368 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 17:41:32,368 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:41:32,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:41:32,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1933005595, now seen corresponding path program 1 times [2020-07-28 17:41:32,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:41:32,370 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130491142] [2020-07-28 17:41:32,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:41:32,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:41:32,592 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:41:32,675 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 17:41:32,676 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.TableauxRow.(TableauxRow.java:45) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.generateLinVar(LinArSolve.java:275) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.createEquality(LinArSolve.java:1974) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createLAEquality(EqualityProxy.java:83) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createAtom(EqualityProxy.java:165) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.getLiteral(EqualityProxy.java:186) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createCCEquality(EqualityProxy.java:109) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.mbtc(LinArSolve.java:1891) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.computeConflictClause(LinArSolve.java:664) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.checkConsistency(DPLLEngine.java:1010) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.solve(DPLLEngine.java:1157) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol$CheckType$1.check(SMTInterpol.java:117) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSatAssuming(SMTInterpol.java:494) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSat(SMTInterpol.java:446) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:295) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:206) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.computeRcfgProgramExecutionAndDecodeBranches(TraceCheck.java:337) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:223) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-28 17:41:32,683 INFO L168 Benchmark]: Toolchain (without parser) took 2528.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 960.2 MB in the beginning and 970.2 MB in the end (delta: -10.0 MB). Peak memory consumption was 111.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:41:32,684 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:41:32,685 INFO L168 Benchmark]: CACSL2BoogieTranslator took 466.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -151.1 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2020-07-28 17:41:32,686 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:41:32,686 INFO L168 Benchmark]: Boogie Preprocessor took 54.77 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:41:32,687 INFO L168 Benchmark]: RCFGBuilder took 799.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 60.7 MB). Peak memory consumption was 60.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:41:32,688 INFO L168 Benchmark]: TraceAbstraction took 1119.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 970.2 MB in the end (delta: 73.8 MB). Peak memory consumption was 73.8 MB. Max. memory is 11.5 GB. [2020-07-28 17:41:32,692 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 466.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -151.1 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 80.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.77 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 799.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 60.7 MB). Peak memory consumption was 60.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1119.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 970.2 MB in the end (delta: 73.8 MB). Peak memory consumption was 73.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.TableauxRow.(TableauxRow.java:45) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 17:41:34,765 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:41:34,767 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:41:34,780 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:41:34,780 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:41:34,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:41:34,783 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:41:34,785 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:41:34,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:41:34,788 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:41:34,789 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:41:34,791 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:41:34,791 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:41:34,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:41:34,793 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:41:34,795 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:41:34,796 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:41:34,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:41:34,799 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:41:34,801 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:41:34,802 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:41:34,804 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:41:34,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:41:34,806 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:41:34,809 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:41:34,809 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:41:34,809 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:41:34,810 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:41:34,811 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:41:34,812 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:41:34,812 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:41:34,813 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:41:34,814 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:41:34,815 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:41:34,816 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:41:34,816 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:41:34,817 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:41:34,817 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:41:34,818 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:41:34,819 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:41:34,819 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:41:34,820 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-07-28 17:41:34,835 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:41:34,836 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:41:34,837 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:41:34,837 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:41:34,838 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:41:34,838 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:41:34,838 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:41:34,839 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:41:34,839 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:41:34,839 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:41:34,839 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:41:34,840 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:41:34,840 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-07-28 17:41:34,840 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-07-28 17:41:34,840 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:41:34,841 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:41:34,841 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:41:34,841 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:41:34,842 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:41:34,842 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:41:34,842 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:41:34,842 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:41:34,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:41:34,843 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:41:34,843 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:41:34,844 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:41:34,844 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-07-28 17:41:34,844 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-07-28 17:41:34,844 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:41:34,845 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:41:34,845 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-28 17:41:34,845 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78c6d2d68aa498895f40ed0a4a24644b21119801 [2020-07-28 17:41:35,168 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:41:35,187 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:41:35,193 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:41:35,195 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:41:35,198 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:41:35,200 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0960b.c [2020-07-28 17:41:35,285 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8aa31d676/c95ba6b854ef4654bb3ff4b8db743a3a/FLAGd171fca93 [2020-07-28 17:41:35,798 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:41:35,798 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0960b.c [2020-07-28 17:41:35,806 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8aa31d676/c95ba6b854ef4654bb3ff4b8db743a3a/FLAGd171fca93 [2020-07-28 17:41:36,117 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8aa31d676/c95ba6b854ef4654bb3ff4b8db743a3a [2020-07-28 17:41:36,120 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:41:36,124 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:41:36,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:41:36,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:41:36,130 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:41:36,132 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:41:36" (1/1) ... [2020-07-28 17:41:36,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49fde3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:36, skipping insertion in model container [2020-07-28 17:41:36,136 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:41:36" (1/1) ... [2020-07-28 17:41:36,143 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:41:36,171 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:41:36,417 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:41:36,436 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:41:36,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:41:36,657 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:41:36,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:36 WrapperNode [2020-07-28 17:41:36,658 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:41:36,662 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:41:36,663 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:41:36,665 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:41:36,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:36" (1/1) ... [2020-07-28 17:41:36,693 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:36" (1/1) ... [2020-07-28 17:41:36,764 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:41:36,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:41:36,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:41:36,769 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:41:36,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:36" (1/1) ... [2020-07-28 17:41:36,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:36" (1/1) ... [2020-07-28 17:41:36,788 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:36" (1/1) ... [2020-07-28 17:41:36,789 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:36" (1/1) ... [2020-07-28 17:41:36,807 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:36" (1/1) ... [2020-07-28 17:41:36,814 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:36" (1/1) ... [2020-07-28 17:41:36,819 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:36" (1/1) ... [2020-07-28 17:41:36,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:41:36,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:41:36,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:41:36,826 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:41:36,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:36" (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 [2020-07-28 17:41:36,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-07-28 17:41:36,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-07-28 17:41:36,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:41:36,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-07-28 17:41:36,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:41:36,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:41:36,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-07-28 17:41:36,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:42:08,508 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:42:08,509 INFO L295 CfgBuilder]: Removed 24 assume(true) statements. [2020-07-28 17:42:08,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:42:08 BoogieIcfgContainer [2020-07-28 17:42:08,514 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:42:08,516 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:42:08,516 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:42:08,519 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:42:08,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:41:36" (1/3) ... [2020-07-28 17:42:08,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ceffecc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:42:08, skipping insertion in model container [2020-07-28 17:42:08,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:41:36" (2/3) ... [2020-07-28 17:42:08,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ceffecc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:42:08, skipping insertion in model container [2020-07-28 17:42:08,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:42:08" (3/3) ... [2020-07-28 17:42:08,524 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0960b.c [2020-07-28 17:42:08,536 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:42:08,544 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:42:08,555 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:42:08,576 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:42:08,577 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:42:08,577 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:42:08,577 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:42:08,578 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:42:08,578 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:42:08,578 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:42:08,578 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:42:08,594 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-07-28 17:42:08,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-28 17:42:08,600 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:42:08,601 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:42:08,601 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:42:08,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:42:08,607 INFO L82 PathProgramCache]: Analyzing trace with hash -306140874, now seen corresponding path program 1 times [2020-07-28 17:42:08,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:42:08,618 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [735642888] [2020-07-28 17:42:08,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-07-28 17:42:09,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:42:09,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-28 17:42:09,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:42:09,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:42:09,629 INFO L280 TraceCheckUtils]: 0: Hoare triple {48#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~ln2_hi_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.6931471803691238);~ln2_lo_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.9082149292705877E-10);~two54_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.8014398509481984E16);~Lg1_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.6666666666666735);~Lg2_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.3999999999940942);~Lg3_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.2857142874366239);~Lg4_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.22222198432149784);~Lg5_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.1818357216161805);~Lg6_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.15313837699209373);~Lg7_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.14798198605116586);~zero~0 := ~Pluszero~DOUBLE();~two54_log10~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.8014398509481984E16);~ivln10_log10~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.4342944819032518);~log10_2hi_log10~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.30102999566361177);~log10_2lo_log10~0 := ~to_fp~DOUBLE(currentRoundingMode, 3.694239077158931E-13);~zero_log10~0 := ~Pluszero~DOUBLE(); {48#true} is VALID [2020-07-28 17:42:09,631 INFO L280 TraceCheckUtils]: 1: Hoare triple {48#true} havoc main_#res;havoc main_#t~ret21, main_#t~ret22, main_~x~0, main_~res~0;main_~x~0 := ~fp.neg~DOUBLE(~Pluszero~DOUBLE());__ieee754_log10_#in~x := main_~x~0;havoc __ieee754_log10_#res;havoc __ieee754_log10_#t~mem12, __ieee754_log10_#t~union13, __ieee754_log10_#t~mem14, __ieee754_log10_#t~union15, __ieee754_log10_~#ew_u~2.base, __ieee754_log10_~#ew_u~2.offset, __ieee754_log10_#t~mem16, __ieee754_log10_#t~union17, __ieee754_log10_~#gh_u~1.base, __ieee754_log10_~#gh_u~1.offset, __ieee754_log10_#t~mem18, __ieee754_log10_#t~union19.lsw, __ieee754_log10_#t~union19.msw, __ieee754_log10_~#sh_u~1.base, __ieee754_log10_~#sh_u~1.offset, __ieee754_log10_#t~ret20, __ieee754_log10_~x, __ieee754_log10_~y~0, __ieee754_log10_~z~1, __ieee754_log10_~i~1, __ieee754_log10_~k~1, __ieee754_log10_~hx~2, __ieee754_log10_~lx~2;__ieee754_log10_~x := __ieee754_log10_#in~x;havoc __ieee754_log10_~y~0;havoc __ieee754_log10_~z~1;havoc __ieee754_log10_~i~1;havoc __ieee754_log10_~k~1;havoc __ieee754_log10_~hx~2;havoc __ieee754_log10_~lx~2; {48#true} is VALID [2020-07-28 17:42:09,632 INFO L280 TraceCheckUtils]: 2: Hoare triple {48#true} assume !true; {49#false} is VALID [2020-07-28 17:42:09,633 INFO L280 TraceCheckUtils]: 3: Hoare triple {49#false} __ieee754_log10_~k~1 := 0bv32; {49#false} is VALID [2020-07-28 17:42:09,633 INFO L280 TraceCheckUtils]: 4: Hoare triple {49#false} assume ~bvslt32(__ieee754_log10_~hx~2, 1048576bv32); {49#false} is VALID [2020-07-28 17:42:09,634 INFO L280 TraceCheckUtils]: 5: Hoare triple {49#false} assume 0bv32 == ~bvor32(~bvand32(2147483647bv32, __ieee754_log10_~hx~2), __ieee754_log10_~lx~2);__ieee754_log10_#res := ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~two54_log10~0), ~zero_log10~0); {49#false} is VALID [2020-07-28 17:42:09,634 INFO L280 TraceCheckUtils]: 6: Hoare triple {49#false} main_#t~ret21 := __ieee754_log10_#res;main_~res~0 := main_#t~ret21;havoc main_#t~ret21;isinf_double_#in~x := main_~res~0;havoc isinf_double_#res;havoc isinf_double_#t~mem0, isinf_double_#t~union1, isinf_double_#t~mem2, isinf_double_#t~union3, isinf_double_~#ew_u~0.base, isinf_double_~#ew_u~0.offset, isinf_double_~x, isinf_double_~hx~0, isinf_double_~lx~0;isinf_double_~x := isinf_double_#in~x;havoc isinf_double_~hx~0;havoc isinf_double_~lx~0; {49#false} is VALID [2020-07-28 17:42:09,635 INFO L280 TraceCheckUtils]: 7: Hoare triple {49#false} assume !true; {49#false} is VALID [2020-07-28 17:42:09,635 INFO L280 TraceCheckUtils]: 8: Hoare triple {49#false} isinf_double_~hx~0 := ~bvand32(2147483647bv32, isinf_double_~hx~0);isinf_double_~hx~0 := ~bvor32(isinf_double_~hx~0, ~bvlshr32(~bvor32(isinf_double_~lx~0, ~bvneg32(isinf_double_~lx~0)), 31bv32));isinf_double_~hx~0 := ~bvsub32(2146435072bv32, isinf_double_~hx~0);isinf_double_#res := ~bvsub32(1bv32, ~bvlshr32(~bvor32(isinf_double_~hx~0, ~bvneg32(isinf_double_~hx~0)), 31bv32)); {49#false} is VALID [2020-07-28 17:42:09,635 INFO L280 TraceCheckUtils]: 9: Hoare triple {49#false} main_#t~ret22 := isinf_double_#res; {49#false} is VALID [2020-07-28 17:42:09,636 INFO L280 TraceCheckUtils]: 10: Hoare triple {49#false} assume 0bv32 == main_#t~ret22;havoc main_#t~ret22; {49#false} is VALID [2020-07-28 17:42:09,636 INFO L280 TraceCheckUtils]: 11: Hoare triple {49#false} assume !false; {49#false} is VALID [2020-07-28 17:42:09,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:42:09,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:42:09,664 INFO L280 TraceCheckUtils]: 11: Hoare triple {49#false} assume !false; {49#false} is VALID [2020-07-28 17:42:09,664 INFO L280 TraceCheckUtils]: 10: Hoare triple {49#false} assume 0bv32 == main_#t~ret22;havoc main_#t~ret22; {49#false} is VALID [2020-07-28 17:42:09,664 INFO L280 TraceCheckUtils]: 9: Hoare triple {49#false} main_#t~ret22 := isinf_double_#res; {49#false} is VALID [2020-07-28 17:42:09,665 INFO L280 TraceCheckUtils]: 8: Hoare triple {49#false} isinf_double_~hx~0 := ~bvand32(2147483647bv32, isinf_double_~hx~0);isinf_double_~hx~0 := ~bvor32(isinf_double_~hx~0, ~bvlshr32(~bvor32(isinf_double_~lx~0, ~bvneg32(isinf_double_~lx~0)), 31bv32));isinf_double_~hx~0 := ~bvsub32(2146435072bv32, isinf_double_~hx~0);isinf_double_#res := ~bvsub32(1bv32, ~bvlshr32(~bvor32(isinf_double_~hx~0, ~bvneg32(isinf_double_~hx~0)), 31bv32)); {49#false} is VALID [2020-07-28 17:42:09,665 INFO L280 TraceCheckUtils]: 7: Hoare triple {49#false} assume !true; {49#false} is VALID [2020-07-28 17:42:09,666 INFO L280 TraceCheckUtils]: 6: Hoare triple {49#false} main_#t~ret21 := __ieee754_log10_#res;main_~res~0 := main_#t~ret21;havoc main_#t~ret21;isinf_double_#in~x := main_~res~0;havoc isinf_double_#res;havoc isinf_double_#t~mem0, isinf_double_#t~union1, isinf_double_#t~mem2, isinf_double_#t~union3, isinf_double_~#ew_u~0.base, isinf_double_~#ew_u~0.offset, isinf_double_~x, isinf_double_~hx~0, isinf_double_~lx~0;isinf_double_~x := isinf_double_#in~x;havoc isinf_double_~hx~0;havoc isinf_double_~lx~0; {49#false} is VALID [2020-07-28 17:42:09,666 INFO L280 TraceCheckUtils]: 5: Hoare triple {49#false} assume 0bv32 == ~bvor32(~bvand32(2147483647bv32, __ieee754_log10_~hx~2), __ieee754_log10_~lx~2);__ieee754_log10_#res := ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~two54_log10~0), ~zero_log10~0); {49#false} is VALID [2020-07-28 17:42:09,667 INFO L280 TraceCheckUtils]: 4: Hoare triple {49#false} assume ~bvslt32(__ieee754_log10_~hx~2, 1048576bv32); {49#false} is VALID [2020-07-28 17:42:09,667 INFO L280 TraceCheckUtils]: 3: Hoare triple {49#false} __ieee754_log10_~k~1 := 0bv32; {49#false} is VALID [2020-07-28 17:42:09,668 INFO L280 TraceCheckUtils]: 2: Hoare triple {48#true} assume !true; {49#false} is VALID [2020-07-28 17:42:09,668 INFO L280 TraceCheckUtils]: 1: Hoare triple {48#true} havoc main_#res;havoc main_#t~ret21, main_#t~ret22, main_~x~0, main_~res~0;main_~x~0 := ~fp.neg~DOUBLE(~Pluszero~DOUBLE());__ieee754_log10_#in~x := main_~x~0;havoc __ieee754_log10_#res;havoc __ieee754_log10_#t~mem12, __ieee754_log10_#t~union13, __ieee754_log10_#t~mem14, __ieee754_log10_#t~union15, __ieee754_log10_~#ew_u~2.base, __ieee754_log10_~#ew_u~2.offset, __ieee754_log10_#t~mem16, __ieee754_log10_#t~union17, __ieee754_log10_~#gh_u~1.base, __ieee754_log10_~#gh_u~1.offset, __ieee754_log10_#t~mem18, __ieee754_log10_#t~union19.lsw, __ieee754_log10_#t~union19.msw, __ieee754_log10_~#sh_u~1.base, __ieee754_log10_~#sh_u~1.offset, __ieee754_log10_#t~ret20, __ieee754_log10_~x, __ieee754_log10_~y~0, __ieee754_log10_~z~1, __ieee754_log10_~i~1, __ieee754_log10_~k~1, __ieee754_log10_~hx~2, __ieee754_log10_~lx~2;__ieee754_log10_~x := __ieee754_log10_#in~x;havoc __ieee754_log10_~y~0;havoc __ieee754_log10_~z~1;havoc __ieee754_log10_~i~1;havoc __ieee754_log10_~k~1;havoc __ieee754_log10_~hx~2;havoc __ieee754_log10_~lx~2; {48#true} is VALID [2020-07-28 17:42:09,669 INFO L280 TraceCheckUtils]: 0: Hoare triple {48#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~ln2_hi_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.6931471803691238);~ln2_lo_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.9082149292705877E-10);~two54_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.8014398509481984E16);~Lg1_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.6666666666666735);~Lg2_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.3999999999940942);~Lg3_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.2857142874366239);~Lg4_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.22222198432149784);~Lg5_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.1818357216161805);~Lg6_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.15313837699209373);~Lg7_log~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.14798198605116586);~zero~0 := ~Pluszero~DOUBLE();~two54_log10~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.8014398509481984E16);~ivln10_log10~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.4342944819032518);~log10_2hi_log10~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.30102999566361177);~log10_2lo_log10~0 := ~to_fp~DOUBLE(currentRoundingMode, 3.694239077158931E-13);~zero_log10~0 := ~Pluszero~DOUBLE(); {48#true} is VALID [2020-07-28 17:42:09,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:42:09,671 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [735642888] [2020-07-28 17:42:09,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:42:09,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-07-28 17:42:09,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097495255] [2020-07-28 17:42:09,679 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-07-28 17:42:09,681 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:42:09,685 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 17:42:10,737 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:42:10,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 17:42:10,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:42:10,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 17:42:10,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:42:10,750 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2020-07-28 17:42:43,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:42:43,656 INFO L93 Difference]: Finished difference Result 88 states and 146 transitions. [2020-07-28 17:42:43,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 17:42:43,656 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-07-28 17:42:43,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:42:43,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:42:43,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 146 transitions. [2020-07-28 17:42:43,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:42:43,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 146 transitions. [2020-07-28 17:42:43,675 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 146 transitions. [2020-07-28 17:43:04,153 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 146 edges. 146 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:43:04,168 INFO L225 Difference]: With dead ends: 88 [2020-07-28 17:43:04,168 INFO L226 Difference]: Without dead ends: 42 [2020-07-28 17:43:04,172 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:43:04,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-07-28 17:43:04,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-07-28 17:43:04,214 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:43:04,215 INFO L82 GeneralOperation]: Start isEquivalent. First operand 42 states. Second operand 42 states. [2020-07-28 17:43:04,215 INFO L74 IsIncluded]: Start isIncluded. First operand 42 states. Second operand 42 states. [2020-07-28 17:43:04,216 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 42 states. [2020-07-28 17:43:04,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:43:04,221 INFO L93 Difference]: Finished difference Result 42 states and 56 transitions. [2020-07-28 17:43:04,221 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2020-07-28 17:43:04,222 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:43:04,222 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:43:04,223 INFO L74 IsIncluded]: Start isIncluded. First operand 42 states. Second operand 42 states. [2020-07-28 17:43:04,223 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 42 states. [2020-07-28 17:43:04,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:43:04,227 INFO L93 Difference]: Finished difference Result 42 states and 56 transitions. [2020-07-28 17:43:04,228 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2020-07-28 17:43:04,228 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:43:04,229 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:43:04,229 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:43:04,229 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:43:04,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-07-28 17:43:04,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 56 transitions. [2020-07-28 17:43:04,234 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 56 transitions. Word has length 12 [2020-07-28 17:43:04,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:43:04,235 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 56 transitions. [2020-07-28 17:43:04,235 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 17:43:04,236 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2020-07-28 17:43:04,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-28 17:43:04,237 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:43:04,237 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:43:04,452 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-07-28 17:43:04,452 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:43:04,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:43:04,453 INFO L82 PathProgramCache]: Analyzing trace with hash 1933005595, now seen corresponding path program 1 times [2020-07-28 17:43:04,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:43:04,456 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1727738470] [2020-07-28 17:43:04,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-07-28 17:43:05,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:43:05,516 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:43:06,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:43:06,617 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:43:06,774 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-07-28 17:43:06,775 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 17:43:06,977 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-07-28 17:43:07,047 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:43:07,047 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 17:43:07,047 WARN L170 areAnnotationChecker]: L138-2 has no Hoare annotation [2020-07-28 17:43:07,048 WARN L170 areAnnotationChecker]: L138-2 has no Hoare annotation [2020-07-28 17:43:07,048 WARN L170 areAnnotationChecker]: L138-1 has no Hoare annotation [2020-07-28 17:43:07,048 WARN L170 areAnnotationChecker]: L138-1 has no Hoare annotation [2020-07-28 17:43:07,048 WARN L170 areAnnotationChecker]: L138-3 has no Hoare annotation [2020-07-28 17:43:07,049 WARN L170 areAnnotationChecker]: L146 has no Hoare annotation [2020-07-28 17:43:07,049 WARN L170 areAnnotationChecker]: L146 has no Hoare annotation [2020-07-28 17:43:07,049 WARN L170 areAnnotationChecker]: L147 has no Hoare annotation [2020-07-28 17:43:07,049 WARN L170 areAnnotationChecker]: L147 has no Hoare annotation [2020-07-28 17:43:07,049 WARN L170 areAnnotationChecker]: L146-1 has no Hoare annotation [2020-07-28 17:43:07,050 WARN L170 areAnnotationChecker]: L146-1 has no Hoare annotation [2020-07-28 17:43:07,050 WARN L170 areAnnotationChecker]: L172 has no Hoare annotation [2020-07-28 17:43:07,050 WARN L170 areAnnotationChecker]: L149 has no Hoare annotation [2020-07-28 17:43:07,050 WARN L170 areAnnotationChecker]: L149 has no Hoare annotation [2020-07-28 17:43:07,051 WARN L170 areAnnotationChecker]: L165-2 has no Hoare annotation [2020-07-28 17:43:07,051 WARN L170 areAnnotationChecker]: L165-2 has no Hoare annotation [2020-07-28 17:43:07,051 WARN L170 areAnnotationChecker]: L20-2 has no Hoare annotation [2020-07-28 17:43:07,051 WARN L170 areAnnotationChecker]: L20-2 has no Hoare annotation [2020-07-28 17:43:07,051 WARN L170 areAnnotationChecker]: L153-2 has no Hoare annotation [2020-07-28 17:43:07,052 WARN L170 areAnnotationChecker]: L153-2 has no Hoare annotation [2020-07-28 17:43:07,052 WARN L170 areAnnotationChecker]: L165-1 has no Hoare annotation [2020-07-28 17:43:07,052 WARN L170 areAnnotationChecker]: L165-1 has no Hoare annotation [2020-07-28 17:43:07,052 WARN L170 areAnnotationChecker]: L165-3 has no Hoare annotation [2020-07-28 17:43:07,053 WARN L170 areAnnotationChecker]: L20-1 has no Hoare annotation [2020-07-28 17:43:07,053 WARN L170 areAnnotationChecker]: L20-1 has no Hoare annotation [2020-07-28 17:43:07,053 WARN L170 areAnnotationChecker]: L20-3 has no Hoare annotation [2020-07-28 17:43:07,053 WARN L170 areAnnotationChecker]: L153-1 has no Hoare annotation [2020-07-28 17:43:07,053 WARN L170 areAnnotationChecker]: L153-1 has no Hoare annotation [2020-07-28 17:43:07,054 WARN L170 areAnnotationChecker]: L50-2 has no Hoare annotation [2020-07-28 17:43:07,054 WARN L170 areAnnotationChecker]: L50-2 has no Hoare annotation [2020-07-28 17:43:07,054 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-28 17:43:07,054 WARN L170 areAnnotationChecker]: L50-1 has no Hoare annotation [2020-07-28 17:43:07,055 WARN L170 areAnnotationChecker]: L50-1 has no Hoare annotation [2020-07-28 17:43:07,055 WARN L170 areAnnotationChecker]: L50-3 has no Hoare annotation [2020-07-28 17:43:07,055 WARN L170 areAnnotationChecker]: L185 has no Hoare annotation [2020-07-28 17:43:07,055 WARN L170 areAnnotationChecker]: L185 has no Hoare annotation [2020-07-28 17:43:07,055 WARN L170 areAnnotationChecker]: L58 has no Hoare annotation [2020-07-28 17:43:07,055 WARN L170 areAnnotationChecker]: L58 has no Hoare annotation [2020-07-28 17:43:07,055 WARN L170 areAnnotationChecker]: L186 has no Hoare annotation [2020-07-28 17:43:07,056 WARN L170 areAnnotationChecker]: L186 has no Hoare annotation [2020-07-28 17:43:07,056 WARN L170 areAnnotationChecker]: L190 has no Hoare annotation [2020-07-28 17:43:07,056 WARN L170 areAnnotationChecker]: L59 has no Hoare annotation [2020-07-28 17:43:07,056 WARN L170 areAnnotationChecker]: L59 has no Hoare annotation [2020-07-28 17:43:07,056 WARN L170 areAnnotationChecker]: L58-1 has no Hoare annotation [2020-07-28 17:43:07,056 WARN L170 areAnnotationChecker]: L58-1 has no Hoare annotation [2020-07-28 17:43:07,057 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:43:07,057 WARN L170 areAnnotationChecker]: L122 has no Hoare annotation [2020-07-28 17:43:07,057 WARN L170 areAnnotationChecker]: L61 has no Hoare annotation [2020-07-28 17:43:07,057 WARN L170 areAnnotationChecker]: L61 has no Hoare annotation [2020-07-28 17:43:07,058 WARN L170 areAnnotationChecker]: L76-2 has no Hoare annotation [2020-07-28 17:43:07,058 WARN L170 areAnnotationChecker]: L76-2 has no Hoare annotation [2020-07-28 17:43:07,058 WARN L170 areAnnotationChecker]: L65-2 has no Hoare annotation [2020-07-28 17:43:07,058 WARN L170 areAnnotationChecker]: L65-2 has no Hoare annotation [2020-07-28 17:43:07,059 WARN L170 areAnnotationChecker]: L76-1 has no Hoare annotation [2020-07-28 17:43:07,059 WARN L170 areAnnotationChecker]: L76-1 has no Hoare annotation [2020-07-28 17:43:07,059 WARN L170 areAnnotationChecker]: L76-3 has no Hoare annotation [2020-07-28 17:43:07,059 WARN L170 areAnnotationChecker]: L65-1 has no Hoare annotation [2020-07-28 17:43:07,059 WARN L170 areAnnotationChecker]: L65-1 has no Hoare annotation [2020-07-28 17:43:07,060 WARN L170 areAnnotationChecker]: L84 has no Hoare annotation [2020-07-28 17:43:07,060 WARN L170 areAnnotationChecker]: L84 has no Hoare annotation [2020-07-28 17:43:07,060 WARN L170 areAnnotationChecker]: L85 has no Hoare annotation [2020-07-28 17:43:07,060 WARN L170 areAnnotationChecker]: L85 has no Hoare annotation [2020-07-28 17:43:07,061 WARN L170 areAnnotationChecker]: L111 has no Hoare annotation [2020-07-28 17:43:07,061 WARN L170 areAnnotationChecker]: L111 has no Hoare annotation [2020-07-28 17:43:07,061 WARN L170 areAnnotationChecker]: L86 has no Hoare annotation [2020-07-28 17:43:07,061 WARN L170 areAnnotationChecker]: L86 has no Hoare annotation [2020-07-28 17:43:07,062 WARN L170 areAnnotationChecker]: L94 has no Hoare annotation [2020-07-28 17:43:07,062 WARN L170 areAnnotationChecker]: L94 has no Hoare annotation [2020-07-28 17:43:07,062 WARN L170 areAnnotationChecker]: L113 has no Hoare annotation [2020-07-28 17:43:07,062 WARN L170 areAnnotationChecker]: L113 has no Hoare annotation [2020-07-28 17:43:07,063 WARN L170 areAnnotationChecker]: L119 has no Hoare annotation [2020-07-28 17:43:07,063 WARN L170 areAnnotationChecker]: L119 has no Hoare annotation [2020-07-28 17:43:07,063 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 17:43:07,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:43:07 BoogieIcfgContainer [2020-07-28 17:43:07,066 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:43:07,067 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:43:07,067 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:43:07,067 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:43:07,068 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:42:08" (3/4) ... [2020-07-28 17:43:07,071 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-07-28 17:43:07,173 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 17:43:07,173 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:43:07,179 INFO L168 Benchmark]: Toolchain (without parser) took 91056.80 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 961.6 MB in the beginning and 906.0 MB in the end (delta: 55.5 MB). Peak memory consumption was 168.3 MB. Max. memory is 11.5 GB. [2020-07-28 17:43:07,181 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:43:07,182 INFO L168 Benchmark]: CACSL2BoogieTranslator took 533.41 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 961.6 MB in the beginning and 1.1 GB in the end (delta: -138.7 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2020-07-28 17:43:07,187 INFO L168 Benchmark]: Boogie Procedure Inliner took 105.85 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2020-07-28 17:43:07,188 INFO L168 Benchmark]: Boogie Preprocessor took 57.05 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:43:07,189 INFO L168 Benchmark]: RCFGBuilder took 31688.67 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: 66.5 MB). Peak memory consumption was 66.5 MB. Max. memory is 11.5 GB. [2020-07-28 17:43:07,189 INFO L168 Benchmark]: TraceAbstraction took 58550.75 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 912.8 MB in the end (delta: 114.1 MB). Peak memory consumption was 114.1 MB. Max. memory is 11.5 GB. [2020-07-28 17:43:07,192 INFO L168 Benchmark]: Witness Printer took 106.81 ms. Allocated memory is still 1.1 GB. Free memory was 912.8 MB in the beginning and 906.0 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2020-07-28 17:43:07,197 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 533.41 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 961.6 MB in the beginning and 1.1 GB in the end (delta: -138.7 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 105.85 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 57.05 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 31688.67 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: 66.5 MB). Peak memory consumption was 66.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 58550.75 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 912.8 MB in the end (delta: 114.1 MB). Peak memory consumption was 114.1 MB. Max. memory is 11.5 GB. * Witness Printer took 106.81 ms. Allocated memory is still 1.1 GB. Free memory was 912.8 MB in the beginning and 906.0 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 186]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L32-L41] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L43] static const double zero = 0.0; [L126-L129] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L131] static const double zero_log10 = 0.0; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L181] double x = -0.0; [L134] double y, z; [L135] __int32_t i, k, hx; [L136] __uint32_t lx; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L139] ieee_double_shape_type ew_u; [L140] ew_u.value = (x) [L141] EXPR ew_u.parts.msw [L141] (hx) = ew_u.parts.msw [L142] EXPR ew_u.parts.lsw [L142] (lx) = ew_u.parts.lsw [L145] k = 0 VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L146] COND TRUE hx < 0x00100000 VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L147] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L148] return -two54_log10 / zero_log10; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L182] double res = __ieee754_log10(x); [L19] __int32_t hx, lx; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L21] ieee_double_shape_type ew_u; [L22] ew_u.value = (x) [L23] EXPR ew_u.parts.msw [L23] (hx) = ew_u.parts.msw [L24] EXPR ew_u.parts.lsw [L24] (lx) = ew_u.parts.lsw [L26] hx &= 0x7fffffff [L27] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L28] hx = 0x7ff00000 - hx [L29] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L185] COND TRUE !isinf_double(res) [L186] __VERIFIER_error() VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 58.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 53.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 59 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 242 SizeOfPredicates, 0 NumberOfNonLiveVariables, 40 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...