./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1122b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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_1122b.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e37ba74c70ee452f780b10cba83059c905066e35 ......................................................................................................................................................................................................................................................................................................... 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 -Xmx15G -Xms4m -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_1122b.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e37ba74c70ee452f780b10cba83059c905066e35 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 00:33:00,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:33:00,815 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:33:00,839 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:33:00,839 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:33:00,840 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:33:00,841 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:33:00,843 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:33:00,845 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:33:00,846 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:33:00,847 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:33:00,848 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:33:00,848 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:33:00,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:33:00,851 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:33:00,852 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:33:00,854 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:33:00,855 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:33:00,859 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:33:00,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:33:00,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:33:00,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:33:00,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:33:00,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:33:00,875 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:33:00,875 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:33:00,875 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:33:00,880 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:33:00,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:33:00,882 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:33:00,882 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:33:00,883 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:33:00,884 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:33:00,885 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:33:00,886 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:33:00,887 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:33:00,887 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:33:00,887 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:33:00,888 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:33:00,888 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:33:00,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:33:00,890 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 00:33:00,955 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:33:00,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:33:00,959 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:33:00,959 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:33:00,960 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:33:00,960 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:33:00,960 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:33:00,960 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 00:33:00,960 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:33:00,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:33:00,961 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:33:00,961 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:33:00,962 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:33:00,962 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:33:00,962 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:33:00,962 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:33:00,962 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:33:00,963 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:33:00,963 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:33:00,963 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:33:00,964 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:33:00,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:33:00,964 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:33:00,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:33:00,964 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:33:00,965 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 00:33:00,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 00:33:00,965 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:33:00,966 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:33:00,966 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(reach_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 -> e37ba74c70ee452f780b10cba83059c905066e35 [2020-10-20 00:33:01,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:33:01,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:33:01,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:33:01,209 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:33:01,210 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:33:01,210 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1122b.c [2020-10-20 00:33:01,277 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbf3f745a/9082595c129441bfab1172d24bcc4c64/FLAG63930d9eb [2020-10-20 00:33:01,886 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:33:01,887 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1122b.c [2020-10-20 00:33:01,897 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbf3f745a/9082595c129441bfab1172d24bcc4c64/FLAG63930d9eb [2020-10-20 00:33:02,109 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbf3f745a/9082595c129441bfab1172d24bcc4c64 [2020-10-20 00:33:02,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:33:02,123 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:33:02,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:33:02,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:33:02,130 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:33:02,131 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:33:02" (1/1) ... [2020-10-20 00:33:02,136 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eac86fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:02, skipping insertion in model container [2020-10-20 00:33:02,136 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:33:02" (1/1) ... [2020-10-20 00:33:02,145 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:33:02,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:33:02,507 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:33:02,518 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:33:02,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:33:02,616 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:33:02,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:02 WrapperNode [2020-10-20 00:33:02,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:33:02,617 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:33:02,618 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:33:02,618 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:33:02,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:02" (1/1) ... [2020-10-20 00:33:02,654 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:02" (1/1) ... [2020-10-20 00:33:02,701 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:33:02,702 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:33:02,703 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:33:02,703 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:33:02,713 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:02" (1/1) ... [2020-10-20 00:33:02,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:02" (1/1) ... [2020-10-20 00:33:02,717 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:02" (1/1) ... [2020-10-20 00:33:02,718 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:02" (1/1) ... [2020-10-20 00:33:02,732 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:02" (1/1) ... [2020-10-20 00:33:02,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:02" (1/1) ... [2020-10-20 00:33:02,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:02" (1/1) ... [2020-10-20 00:33:02,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:33:02,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:33:02,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:33:02,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:33:02,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:02" (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 [2020-10-20 00:33:02,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 00:33:02,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:33:02,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 00:33:02,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-20 00:33:02,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-20 00:33:02,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:33:02,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:33:02,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 00:33:02,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-20 00:33:02,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 00:33:03,405 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:33:03,405 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-10-20 00:33:03,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:33:03 BoogieIcfgContainer [2020-10-20 00:33:03,407 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:33:03,409 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:33:03,409 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:33:03,412 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:33:03,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:33:02" (1/3) ... [2020-10-20 00:33:03,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a5d122d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:33:03, skipping insertion in model container [2020-10-20 00:33:03,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:02" (2/3) ... [2020-10-20 00:33:03,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a5d122d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:33:03, skipping insertion in model container [2020-10-20 00:33:03,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:33:03" (3/3) ... [2020-10-20 00:33:03,416 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1122b.c [2020-10-20 00:33:03,427 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:33:03,435 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:33:03,449 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:33:03,475 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:33:03,475 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:33:03,475 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:33:03,475 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:33:03,476 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:33:03,476 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:33:03,476 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:33:03,476 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:33:03,494 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2020-10-20 00:33:03,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 00:33:03,499 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:33:03,500 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:33:03,501 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:33:03,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:33:03,506 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2020-10-20 00:33:03,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:33:03,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657870824] [2020-10-20 00:33:03,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:33:03,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:33:03,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:33:03,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657870824] [2020-10-20 00:33:03,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:33:03,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 00:33:03,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775396002] [2020-10-20 00:33:03,672 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:33:03,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:33:03,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:33:03,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:33:03,707 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 2 states. [2020-10-20 00:33:03,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:33:03,734 INFO L93 Difference]: Finished difference Result 109 states and 191 transitions. [2020-10-20 00:33:03,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:33:03,736 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-20 00:33:03,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:33:03,748 INFO L225 Difference]: With dead ends: 109 [2020-10-20 00:33:03,749 INFO L226 Difference]: Without dead ends: 52 [2020-10-20 00:33:03,752 INFO L677 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 [2020-10-20 00:33:03,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-20 00:33:03,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-20 00:33:03,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-20 00:33:03,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2020-10-20 00:33:03,795 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2020-10-20 00:33:03,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:33:03,796 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2020-10-20 00:33:03,796 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:33:03,796 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2020-10-20 00:33:03,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-20 00:33:03,797 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:33:03,797 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:33:03,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 00:33:03,798 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:33:03,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:33:03,798 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2020-10-20 00:33:03,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:33:03,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231766402] [2020-10-20 00:33:03,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:33:03,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:33:03,882 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:33:03,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:33:03,939 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:33:03,974 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 00:33:03,974 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 00:33:03,975 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 00:33:04,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:33:04 BoogieIcfgContainer [2020-10-20 00:33:04,020 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:33:04,020 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:33:04,020 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:33:04,021 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:33:04,023 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:33:03" (3/4) ... [2020-10-20 00:33:04,027 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 00:33:04,027 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:33:04,030 INFO L168 Benchmark]: Toolchain (without parser) took 1913.19 ms. Allocated memory was 43.5 MB in the beginning and 49.3 MB in the end (delta: 5.8 MB). Free memory was 24.1 MB in the beginning and 11.9 MB in the end (delta: 12.2 MB). Peak memory consumption was 17.9 MB. Max. memory is 14.3 GB. [2020-10-20 00:33:04,031 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 32.5 MB. Free memory was 11.1 MB in the beginning and 11.1 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. [2020-10-20 00:33:04,032 INFO L168 Benchmark]: CACSL2BoogieTranslator took 491.04 ms. Allocated memory was 43.5 MB in the beginning and 44.0 MB in the end (delta: 524.3 kB). Free memory was 23.3 MB in the beginning and 21.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 14.3 GB. [2020-10-20 00:33:04,032 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.08 ms. Allocated memory is still 44.0 MB. Free memory was 21.9 MB in the beginning and 19.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 14.3 GB. [2020-10-20 00:33:04,033 INFO L168 Benchmark]: Boogie Preprocessor took 45.30 ms. Allocated memory is still 44.0 MB. Free memory was 19.1 MB in the beginning and 16.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. [2020-10-20 00:33:04,034 INFO L168 Benchmark]: RCFGBuilder took 660.04 ms. Allocated memory was 44.0 MB in the beginning and 47.2 MB in the end (delta: 3.1 MB). Free memory was 16.7 MB in the beginning and 23.7 MB in the end (delta: -7.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 14.3 GB. [2020-10-20 00:33:04,035 INFO L168 Benchmark]: TraceAbstraction took 611.12 ms. Allocated memory was 47.2 MB in the beginning and 49.3 MB in the end (delta: 2.1 MB). Free memory was 23.4 MB in the beginning and 12.3 MB in the end (delta: 11.1 MB). Peak memory consumption was 13.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:33:04,036 INFO L168 Benchmark]: Witness Printer took 6.85 ms. Allocated memory is still 49.3 MB. Free memory was 12.3 MB in the beginning and 11.9 MB in the end (delta: 379.0 kB). Peak memory consumption was 379.0 kB. Max. memory is 14.3 GB. [2020-10-20 00:33:04,042 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 32.5 MB. Free memory was 11.1 MB in the beginning and 11.1 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 491.04 ms. Allocated memory was 43.5 MB in the beginning and 44.0 MB in the end (delta: 524.3 kB). Free memory was 23.3 MB in the beginning and 21.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 84.08 ms. Allocated memory is still 44.0 MB. Free memory was 21.9 MB in the beginning and 19.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 45.30 ms. Allocated memory is still 44.0 MB. Free memory was 19.1 MB in the beginning and 16.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. * RCFGBuilder took 660.04 ms. Allocated memory was 44.0 MB in the beginning and 47.2 MB in the end (delta: 3.1 MB). Free memory was 16.7 MB in the beginning and 23.7 MB in the end (delta: -7.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 14.3 GB. * TraceAbstraction took 611.12 ms. Allocated memory was 47.2 MB in the beginning and 49.3 MB in the end (delta: 2.1 MB). Free memory was 23.4 MB in the beginning and 12.3 MB in the end (delta: 11.1 MB). Peak memory consumption was 13.2 MB. Max. memory is 14.3 GB. * Witness Printer took 6.85 ms. Allocated memory is still 49.3 MB. Free memory was 12.3 MB in the beginning and 11.9 MB in the end (delta: 379.0 kB). Peak memory consumption was 379.0 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 46, overapproximation of someUnaryDOUBLEoperation at line 22, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryDOUBLEComparisonOperation at line 18, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={9:0}] [L172] double x = -1.0 / 0.0; [L173] double y = __VERIFIER_nondet_double(); [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; VAL [one_fmod=1, Zero_fmod={9:0}] [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lx) = ew_u.parts.lsw [L36] ieee_double_shape_type ew_u; [L37] ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] (ly) = ew_u.parts.lsw [L41] sx = hx & 0x80000000 [L42] hx ^= sx [L43] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={9:0}] [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L47] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={9:0}] [L174] double res = fmod_double(x, y); [L18] return x != x; VAL [one_fmod=1, Zero_fmod={9:0}] [L177] COND TRUE !isnan_double(res) [L3] __assert_fail("0", "double_req_bl_1122b.c", 3, "reach_error") VAL [one_fmod=1, Zero_fmod={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 81 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 00:33:06,194 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:33:06,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:33:06,226 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:33:06,227 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:33:06,236 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:33:06,238 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:33:06,240 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:33:06,243 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:33:06,246 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:33:06,247 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:33:06,250 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:33:06,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:33:06,253 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:33:06,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:33:06,256 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:33:06,257 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:33:06,258 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:33:06,261 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:33:06,267 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:33:06,270 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:33:06,279 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:33:06,280 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:33:06,281 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:33:06,283 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:33:06,283 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:33:06,284 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:33:06,285 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:33:06,285 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:33:06,286 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:33:06,286 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:33:06,287 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:33:06,288 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:33:06,289 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:33:06,290 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:33:06,290 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:33:06,291 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:33:06,291 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:33:06,291 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:33:06,292 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:33:06,293 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:33:06,294 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-20 00:33:06,316 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:33:06,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:33:06,317 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:33:06,318 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:33:06,318 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:33:06,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:33:06,318 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:33:06,319 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:33:06,319 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:33:06,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:33:06,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:33:06,320 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:33:06,320 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 00:33:06,320 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 00:33:06,320 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:33:06,321 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:33:06,321 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:33:06,321 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:33:06,321 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:33:06,322 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:33:06,322 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:33:06,322 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:33:06,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:33:06,323 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:33:06,323 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:33:06,323 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:33:06,323 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 00:33:06,324 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 00:33:06,324 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:33:06,324 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:33:06,324 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 00:33:06,325 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(reach_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 -> e37ba74c70ee452f780b10cba83059c905066e35 [2020-10-20 00:33:06,528 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:33:06,540 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:33:06,544 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:33:06,545 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:33:06,546 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:33:06,547 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1122b.c [2020-10-20 00:33:06,610 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d829815f/f6d3e0470d434ae99cec56231e7a74fe/FLAG8d98cde98 [2020-10-20 00:33:07,087 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:33:07,087 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1122b.c [2020-10-20 00:33:07,096 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d829815f/f6d3e0470d434ae99cec56231e7a74fe/FLAG8d98cde98 [2020-10-20 00:33:07,443 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d829815f/f6d3e0470d434ae99cec56231e7a74fe [2020-10-20 00:33:07,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:33:07,453 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:33:07,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:33:07,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:33:07,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:33:07,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:33:07" (1/1) ... [2020-10-20 00:33:07,462 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bbf50de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:07, skipping insertion in model container [2020-10-20 00:33:07,462 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:33:07" (1/1) ... [2020-10-20 00:33:07,470 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:33:07,502 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:33:07,793 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:33:07,807 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:33:07,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:33:07,887 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:33:07,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:07 WrapperNode [2020-10-20 00:33:07,888 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:33:07,888 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:33:07,889 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:33:07,889 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:33:07,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:07" (1/1) ... [2020-10-20 00:33:07,914 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:07" (1/1) ... [2020-10-20 00:33:07,950 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:33:07,950 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:33:07,951 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:33:07,951 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:33:07,961 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:07" (1/1) ... [2020-10-20 00:33:07,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:07" (1/1) ... [2020-10-20 00:33:07,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:07" (1/1) ... [2020-10-20 00:33:07,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:07" (1/1) ... [2020-10-20 00:33:07,983 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:07" (1/1) ... [2020-10-20 00:33:07,991 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:07" (1/1) ... [2020-10-20 00:33:07,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:07" (1/1) ... [2020-10-20 00:33:08,001 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:33:08,009 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:33:08,009 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:33:08,010 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:33:08,011 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:07" (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 [2020-10-20 00:33:08,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-10-20 00:33:08,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-10-20 00:33:08,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-20 00:33:08,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:33:08,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-10-20 00:33:08,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-20 00:33:08,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:33:08,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:33:08,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-20 00:33:08,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 00:33:11,773 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:33:11,774 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-10-20 00:33:11,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:33:11 BoogieIcfgContainer [2020-10-20 00:33:11,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:33:11,780 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:33:11,780 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:33:11,785 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:33:11,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:33:07" (1/3) ... [2020-10-20 00:33:11,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@241eccda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:33:11, skipping insertion in model container [2020-10-20 00:33:11,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:07" (2/3) ... [2020-10-20 00:33:11,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@241eccda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:33:11, skipping insertion in model container [2020-10-20 00:33:11,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:33:11" (3/3) ... [2020-10-20 00:33:11,790 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1122b.c [2020-10-20 00:33:11,803 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:33:11,812 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:33:11,827 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:33:11,859 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:33:11,859 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:33:11,859 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:33:11,860 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:33:11,860 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:33:11,860 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:33:11,860 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:33:11,861 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:33:11,881 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2020-10-20 00:33:11,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 00:33:11,889 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:33:11,891 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:33:11,892 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:33:11,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:33:11,899 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2020-10-20 00:33:11,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:33:11,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [292030903] [2020-10-20 00:33:11,916 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 [2020-10-20 00:33:12,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:33:12,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-20 00:33:12,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:33:12,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:33:12,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:33:12,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:33:12,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [292030903] [2020-10-20 00:33:12,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:33:12,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 00:33:12,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118530809] [2020-10-20 00:33:12,999 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:33:13,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:33:13,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:33:13,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:33:13,014 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 2 states. [2020-10-20 00:33:13,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:33:13,036 INFO L93 Difference]: Finished difference Result 109 states and 191 transitions. [2020-10-20 00:33:13,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:33:13,038 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-20 00:33:13,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:33:13,047 INFO L225 Difference]: With dead ends: 109 [2020-10-20 00:33:13,047 INFO L226 Difference]: Without dead ends: 52 [2020-10-20 00:33:13,050 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:33:13,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-20 00:33:13,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-20 00:33:13,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-20 00:33:13,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2020-10-20 00:33:13,100 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2020-10-20 00:33:13,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:33:13,101 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2020-10-20 00:33:13,101 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:33:13,101 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2020-10-20 00:33:13,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-20 00:33:13,102 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:33:13,102 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:33:13,310 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 00:33:13,311 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:33:13,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:33:13,313 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2020-10-20 00:33:13,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:33:13,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2146661842] [2020-10-20 00:33:13,315 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 [2020-10-20 00:33:14,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:33:14,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-20 00:33:14,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:33:24,833 WARN L193 SmtUtils]: Spent 3.35 s on a formula simplification that was a NOOP. DAG size: 12 [2020-10-20 00:33:38,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:33:38,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:33:49,695 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_double_~y (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode c_ULTIMATE.start_fmod_double_~x ULTIMATE.start_fmod_double_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2020-10-20 00:33:51,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:33:51,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2146661842] [2020-10-20 00:33:51,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:33:51,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2020-10-20 00:33:51,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835962852] [2020-10-20 00:33:51,734 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-20 00:33:51,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:33:51,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-20 00:33:51,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=67, Unknown=3, NotChecked=16, Total=110 [2020-10-20 00:33:51,735 INFO L87 Difference]: Start difference. First operand 52 states and 78 transitions. Second operand 11 states. [2020-10-20 00:33:56,579 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((ULTIMATE.start_fmod_double_~y (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode c_ULTIMATE.start_fmod_double_~x ULTIMATE.start_fmod_double_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) (= c_currentRoundingMode roundNearestTiesToEven) (= c_ULTIMATE.start_fmod_double_~x (fp.div c_currentRoundingMode (fp.neg ((_ to_fp 11 53) c_currentRoundingMode 1.0)) (_ +zero 11 53)))) is different from true [2020-10-20 00:34:13,172 WARN L193 SmtUtils]: Spent 3.29 s on a formula simplification. DAG size of input: 18 DAG size of output: 7 [2020-10-20 00:34:19,543 WARN L193 SmtUtils]: Spent 3.31 s on a formula simplification. DAG size of input: 20 DAG size of output: 9 [2020-10-20 00:34:30,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:34:30,310 INFO L93 Difference]: Finished difference Result 57 states and 82 transitions. [2020-10-20 00:34:30,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 00:34:30,353 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 12 [2020-10-20 00:34:30,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:34:30,355 INFO L225 Difference]: With dead ends: 57 [2020-10-20 00:34:30,355 INFO L226 Difference]: Without dead ends: 52 [2020-10-20 00:34:30,356 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 59.1s TimeCoverageRelationStatistics Valid=41, Invalid=95, Unknown=4, NotChecked=42, Total=182 [2020-10-20 00:34:30,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-20 00:34:30,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-20 00:34:30,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-20 00:34:30,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2020-10-20 00:34:30,365 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 77 transitions. Word has length 12 [2020-10-20 00:34:30,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:34:30,365 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 77 transitions. [2020-10-20 00:34:30,366 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-20 00:34:30,366 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2020-10-20 00:34:30,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 00:34:30,367 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:34:30,367 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:34:30,579 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-20 00:34:30,580 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:34:30,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:34:30,580 INFO L82 PathProgramCache]: Analyzing trace with hash -910533226, now seen corresponding path program 1 times [2020-10-20 00:34:30,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:34:30,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1409680275] [2020-10-20 00:34:30,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-20 00:34:30,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:34:30,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-20 00:34:30,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:34:30,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:34:30,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:34:31,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:34:31,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1409680275] [2020-10-20 00:34:31,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:34:31,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-20 00:34:31,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963169310] [2020-10-20 00:34:31,054 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 00:34:31,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:34:31,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 00:34:31,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-20 00:34:31,056 INFO L87 Difference]: Start difference. First operand 52 states and 77 transitions. Second operand 8 states. [2020-10-20 00:34:31,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:34:31,284 INFO L93 Difference]: Finished difference Result 52 states and 77 transitions. [2020-10-20 00:34:31,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 00:34:31,284 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2020-10-20 00:34:31,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:34:31,285 INFO L225 Difference]: With dead ends: 52 [2020-10-20 00:34:31,285 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 00:34:31,286 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-20 00:34:31,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 00:34:31,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 00:34:31,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 00:34:31,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 00:34:31,288 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-10-20 00:34:31,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:34:31,288 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 00:34:31,289 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 00:34:31,289 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 00:34:31,289 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 00:34:31,490 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-20 00:34:31,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 00:34:36,506 WARN L193 SmtUtils]: Spent 4.97 s on a formula simplification. DAG size of input: 18 DAG size of output: 11 [2020-10-20 00:34:36,533 INFO L274 CegarLoopResult]: For program point L35-2(lines 35 40) no Hoare annotation was computed. [2020-10-20 00:34:36,534 INFO L270 CegarLoopResult]: At program point L68-3(lines 68 69) the Hoare annotation is: false [2020-10-20 00:34:36,534 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-20 00:34:36,534 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-20 00:34:36,534 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 00:34:36,534 INFO L274 CegarLoopResult]: For program point L136-1(lines 136 141) no Hoare annotation was computed. [2020-10-20 00:34:36,535 INFO L274 CegarLoopResult]: For program point L103-1(lines 103 117) no Hoare annotation was computed. [2020-10-20 00:34:36,535 INFO L270 CegarLoopResult]: At program point L136-2(lines 136 141) the Hoare annotation is: false [2020-10-20 00:34:36,535 INFO L274 CegarLoopResult]: For program point L103-3(lines 103 117) no Hoare annotation was computed. [2020-10-20 00:34:36,535 INFO L274 CegarLoopResult]: For program point L120(lines 120 121) no Hoare annotation was computed. [2020-10-20 00:34:36,535 INFO L274 CegarLoopResult]: For program point L120-2(lines 25 163) no Hoare annotation was computed. [2020-10-20 00:34:36,535 INFO L274 CegarLoopResult]: For program point L71-2(lines 71 72) no Hoare annotation was computed. [2020-10-20 00:34:36,535 INFO L270 CegarLoopResult]: At program point L71-3(lines 71 72) the Hoare annotation is: false [2020-10-20 00:34:36,535 INFO L274 CegarLoopResult]: For program point L154(lines 154 159) no Hoare annotation was computed. [2020-10-20 00:34:36,535 INFO L274 CegarLoopResult]: For program point L154-1(lines 142 161) no Hoare annotation was computed. [2020-10-20 00:34:36,536 INFO L274 CegarLoopResult]: For program point L154-2(lines 154 159) no Hoare annotation was computed. [2020-10-20 00:34:36,536 INFO L274 CegarLoopResult]: For program point L55(lines 25 163) no Hoare annotation was computed. [2020-10-20 00:34:36,536 INFO L274 CegarLoopResult]: For program point L122-1(lines 25 163) no Hoare annotation was computed. [2020-10-20 00:34:36,536 INFO L274 CegarLoopResult]: For program point L56(lines 56 62) no Hoare annotation was computed. [2020-10-20 00:34:36,536 INFO L274 CegarLoopResult]: For program point L106(lines 106 107) no Hoare annotation was computed. [2020-10-20 00:34:36,537 INFO L274 CegarLoopResult]: For program point L106-2(lines 103 117) no Hoare annotation was computed. [2020-10-20 00:34:36,537 INFO L274 CegarLoopResult]: For program point L57-2(lines 57 58) no Hoare annotation was computed. [2020-10-20 00:34:36,537 INFO L270 CegarLoopResult]: At program point L57-3(lines 57 58) the Hoare annotation is: false [2020-10-20 00:34:36,537 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 00:34:36,537 INFO L270 CegarLoopResult]: At program point L108-1(lines 103 117) the Hoare annotation is: false [2020-10-20 00:34:36,537 INFO L274 CegarLoopResult]: For program point L93(lines 93 99) no Hoare annotation was computed. [2020-10-20 00:34:36,538 INFO L274 CegarLoopResult]: For program point L93-2(lines 89 100) no Hoare annotation was computed. [2020-10-20 00:34:36,538 INFO L274 CegarLoopResult]: For program point L60-2(lines 60 61) no Hoare annotation was computed. [2020-10-20 00:34:36,538 INFO L270 CegarLoopResult]: At program point L60-3(lines 60 61) the Hoare annotation is: false [2020-10-20 00:34:36,538 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 00:34:36,538 INFO L274 CegarLoopResult]: For program point L177(lines 177 180) no Hoare annotation was computed. [2020-10-20 00:34:36,539 INFO L274 CegarLoopResult]: For program point L144(lines 144 153) no Hoare annotation was computed. [2020-10-20 00:34:36,539 INFO L274 CegarLoopResult]: For program point L45(lines 45 47) no Hoare annotation was computed. [2020-10-20 00:34:36,539 INFO L274 CegarLoopResult]: For program point L29-1(lines 29 34) no Hoare annotation was computed. [2020-10-20 00:34:36,539 INFO L270 CegarLoopResult]: At program point L29-2(lines 29 34) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_fmod_double_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53)))) [2020-10-20 00:34:36,539 INFO L274 CegarLoopResult]: For program point L112(lines 112 113) no Hoare annotation was computed. [2020-10-20 00:34:36,539 INFO L270 CegarLoopResult]: At program point L162(lines 25 163) the Hoare annotation is: (not (fp.eq |ULTIMATE.start_fmod_double_#res| |ULTIMATE.start_fmod_double_#res|)) [2020-10-20 00:34:36,539 INFO L270 CegarLoopResult]: At program point L129-2(lines 129 133) the Hoare annotation is: false [2020-10-20 00:34:36,540 INFO L274 CegarLoopResult]: For program point L129-3(lines 25 163) no Hoare annotation was computed. [2020-10-20 00:34:36,540 INFO L274 CegarLoopResult]: For program point L147(lines 147 153) no Hoare annotation was computed. [2020-10-20 00:34:36,540 INFO L274 CegarLoopResult]: For program point L81(lines 81 87) no Hoare annotation was computed. [2020-10-20 00:34:36,541 INFO L274 CegarLoopResult]: For program point L48(lines 48 53) no Hoare annotation was computed. [2020-10-20 00:34:36,541 INFO L274 CegarLoopResult]: For program point L81-2(lines 25 163) no Hoare annotation was computed. [2020-10-20 00:34:36,542 INFO L274 CegarLoopResult]: For program point L48-2(lines 25 163) no Hoare annotation was computed. [2020-10-20 00:34:36,542 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 00:34:36,542 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 00:34:36,542 INFO L274 CegarLoopResult]: For program point L49(lines 49 50) no Hoare annotation was computed. [2020-10-20 00:34:36,542 INFO L274 CegarLoopResult]: For program point L66(lines 25 163) no Hoare annotation was computed. [2020-10-20 00:34:36,542 INFO L277 CegarLoopResult]: At program point L182(lines 165 183) the Hoare annotation is: true [2020-10-20 00:34:36,543 INFO L274 CegarLoopResult]: For program point L67(lines 67 73) no Hoare annotation was computed. [2020-10-20 00:34:36,543 INFO L274 CegarLoopResult]: For program point L51(lines 51 52) no Hoare annotation was computed. [2020-10-20 00:34:36,543 INFO L270 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (and (not (fp.eq |ULTIMATE.start_fmod_double_#res| |ULTIMATE.start_fmod_double_#res|)) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|)) [2020-10-20 00:34:36,543 INFO L274 CegarLoopResult]: For program point L134(lines 134 161) no Hoare annotation was computed. [2020-10-20 00:34:36,543 INFO L274 CegarLoopResult]: For program point L35(lines 35 40) no Hoare annotation was computed. [2020-10-20 00:34:36,543 INFO L274 CegarLoopResult]: For program point L35-1(lines 25 163) no Hoare annotation was computed. [2020-10-20 00:34:36,543 INFO L274 CegarLoopResult]: For program point L68-2(lines 68 69) no Hoare annotation was computed. [2020-10-20 00:34:36,553 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:34:36,555 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:34:36,555 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:34:36,556 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:34:36,557 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:34:36,557 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:34:36,557 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:34:36,557 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:34:36,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:34:36 BoogieIcfgContainer [2020-10-20 00:34:36,561 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:34:36,561 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:34:36,562 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:34:36,562 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:34:36,562 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:33:11" (3/4) ... [2020-10-20 00:34:36,566 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 00:34:36,583 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-20 00:34:36,584 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-10-20 00:34:36,584 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:34:36,584 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:34:36,650 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 00:34:36,650 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:34:36,652 INFO L168 Benchmark]: Toolchain (without parser) took 89204.41 ms. Allocated memory was 36.2 MB in the beginning and 50.3 MB in the end (delta: 14.2 MB). Free memory was 16.3 MB in the beginning and 12.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:34:36,653 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 34.1 MB. Free memory was 10.0 MB in the beginning and 10.0 MB in the end (delta: 45.7 kB). Peak memory consumption was 45.7 kB. Max. memory is 14.3 GB. [2020-10-20 00:34:36,654 INFO L168 Benchmark]: CACSL2BoogieTranslator took 433.99 ms. Allocated memory was 36.2 MB in the beginning and 44.6 MB in the end (delta: 8.4 MB). Free memory was 15.4 MB in the beginning and 21.1 MB in the end (delta: -5.7 MB). Peak memory consumption was 10.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:34:36,654 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.57 ms. Allocated memory is still 44.6 MB. Free memory was 21.1 MB in the beginning and 18.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:34:36,655 INFO L168 Benchmark]: Boogie Preprocessor took 58.45 ms. Allocated memory was 44.6 MB in the beginning and 45.6 MB in the end (delta: 1.0 MB). Free memory was 18.5 MB in the beginning and 27.4 MB in the end (delta: -8.8 MB). Peak memory consumption was 6.1 MB. Max. memory is 14.3 GB. [2020-10-20 00:34:36,656 INFO L168 Benchmark]: RCFGBuilder took 3769.18 ms. Allocated memory is still 45.6 MB. Free memory was 27.4 MB in the beginning and 25.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 14.3 GB. [2020-10-20 00:34:36,656 INFO L168 Benchmark]: TraceAbstraction took 84781.49 ms. Allocated memory was 45.6 MB in the beginning and 50.3 MB in the end (delta: 4.7 MB). Free memory was 24.7 MB in the beginning and 15.7 MB in the end (delta: 9.0 MB). Peak memory consumption was 13.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:34:36,657 INFO L168 Benchmark]: Witness Printer took 89.01 ms. Allocated memory is still 50.3 MB. Free memory was 15.7 MB in the beginning and 12.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 14.3 GB. [2020-10-20 00:34:36,671 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 34.1 MB. Free memory was 10.0 MB in the beginning and 10.0 MB in the end (delta: 45.7 kB). Peak memory consumption was 45.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 433.99 ms. Allocated memory was 36.2 MB in the beginning and 44.6 MB in the end (delta: 8.4 MB). Free memory was 15.4 MB in the beginning and 21.1 MB in the end (delta: -5.7 MB). Peak memory consumption was 10.6 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 61.57 ms. Allocated memory is still 44.6 MB. Free memory was 21.1 MB in the beginning and 18.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 58.45 ms. Allocated memory was 44.6 MB in the beginning and 45.6 MB in the end (delta: 1.0 MB). Free memory was 18.5 MB in the beginning and 27.4 MB in the end (delta: -8.8 MB). Peak memory consumption was 6.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 3769.18 ms. Allocated memory is still 45.6 MB. Free memory was 27.4 MB in the beginning and 25.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 14.3 GB. * TraceAbstraction took 84781.49 ms. Allocated memory was 45.6 MB in the beginning and 50.3 MB in the end (delta: 4.7 MB). Free memory was 24.7 MB in the beginning and 15.7 MB in the end (delta: 9.0 MB). Peak memory consumption was 13.7 MB. Max. memory is 14.3 GB. * Witness Printer took 89.01 ms. Allocated memory is still 50.3 MB. Free memory was 15.7 MB in the beginning and 12.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 29]: Loop Invariant [2020-10-20 00:34:36,681 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:34:36,681 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:34:36,681 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:34:36,682 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:34:36,682 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:34:36,682 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:34:36,682 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:34:36,683 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: !~fp.eq~DOUBLE(\result, \result) - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: !~fp.eq~DOUBLE(\result, \result) && 1bv32 == \result - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 79.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 38.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 159 SDtfs, 8 SDslu, 342 SDs, 0 SdLazy, 27 SolverSat, 2 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 11.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 51 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 59.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 15 NumberOfFragments, 33 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 33 FormulaSimplificationTreeSizeReductionInter, 4.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 37.8s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 66 ConstructedInterpolants, 14 QuantifiedInterpolants, 5495 SizeOfPredicates, 19 NumberOfNonLiveVariables, 215 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...