./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1121a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 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_1.5.800.v20200727-1323.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_1121a.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 b1ef2080ffd97f82ac51854e7d9813eba864fd0a ............................................................................................................................................................................................................................................................................................................... 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_1.5.800.v20200727-1323.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_1121a.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 b1ef2080ffd97f82ac51854e7d9813eba864fd0a .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-03 01:08:46,619 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 01:08:46,622 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 01:08:46,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 01:08:46,657 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 01:08:46,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 01:08:46,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 01:08:46,662 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 01:08:46,664 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 01:08:46,666 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 01:08:46,667 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 01:08:46,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 01:08:46,669 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 01:08:46,670 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 01:08:46,673 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 01:08:46,675 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 01:08:46,677 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 01:08:46,683 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 01:08:46,685 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 01:08:46,694 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 01:08:46,699 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 01:08:46,703 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 01:08:46,705 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 01:08:46,709 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 01:08:46,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 01:08:46,716 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 01:08:46,717 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 01:08:46,720 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 01:08:46,721 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 01:08:46,723 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 01:08:46,725 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 01:08:46,726 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 01:08:46,729 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 01:08:46,732 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 01:08:46,734 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 01:08:46,736 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 01:08:46,739 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 01:08:46,739 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 01:08:46,739 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 01:08:46,740 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 01:08:46,743 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 01:08:46,744 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-03 01:08:46,797 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 01:08:46,804 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 01:08:46,806 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-03 01:08:46,807 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-03 01:08:46,807 INFO L138 SettingsManager]: * Use SBE=true [2020-12-03 01:08:46,807 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 01:08:46,808 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-03 01:08:46,808 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 01:08:46,808 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-03 01:08:46,809 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 01:08:46,810 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 01:08:46,810 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 01:08:46,810 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 01:08:46,810 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-03 01:08:46,811 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 01:08:46,811 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 01:08:46,811 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 01:08:46,811 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 01:08:46,812 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-03 01:08:46,812 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-03 01:08:46,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 01:08:46,812 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 01:08:46,813 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 01:08:46,813 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 01:08:46,813 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-03 01:08:46,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-03 01:08:46,814 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 01:08:46,814 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-03 01:08:46,814 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1ef2080ffd97f82ac51854e7d9813eba864fd0a [2020-12-03 01:08:47,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 01:08:47,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 01:08:47,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 01:08:47,229 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 01:08:47,230 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 01:08:47,231 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1121a.c [2020-12-03 01:08:47,323 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/424651c1e/55a842fad37842829801116fe61875f8/FLAG6894fa9fd [2020-12-03 01:08:47,949 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 01:08:47,950 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1121a.c [2020-12-03 01:08:47,959 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/424651c1e/55a842fad37842829801116fe61875f8/FLAG6894fa9fd [2020-12-03 01:08:48,309 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/424651c1e/55a842fad37842829801116fe61875f8 [2020-12-03 01:08:48,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 01:08:48,323 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 01:08:48,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 01:08:48,325 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 01:08:48,329 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 01:08:48,330 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:08:48" (1/1) ... [2020-12-03 01:08:48,335 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3606d811 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:08:48, skipping insertion in model container [2020-12-03 01:08:48,335 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:08:48" (1/1) ... [2020-12-03 01:08:48,350 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 01:08:48,401 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 01:08:48,680 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1121a.c[3883,3896] [2020-12-03 01:08:48,686 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 01:08:48,701 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 01:08:48,756 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1121a.c[3883,3896] [2020-12-03 01:08:48,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 01:08:48,775 INFO L208 MainTranslator]: Completed translation [2020-12-03 01:08:48,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:08:48 WrapperNode [2020-12-03 01:08:48,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 01:08:48,785 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 01:08:48,785 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 01:08:48,786 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 01:08:48,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:08:48" (1/1) ... [2020-12-03 01:08:48,807 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:08:48" (1/1) ... [2020-12-03 01:08:48,847 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 01:08:48,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 01:08:48,849 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 01:08:48,852 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 01:08:48,865 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:08:48" (1/1) ... [2020-12-03 01:08:48,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:08:48" (1/1) ... [2020-12-03 01:08:48,870 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:08:48" (1/1) ... [2020-12-03 01:08:48,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:08:48" (1/1) ... [2020-12-03 01:08:48,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:08:48" (1/1) ... [2020-12-03 01:08:48,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:08:48" (1/1) ... [2020-12-03 01:08:48,894 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:08:48" (1/1) ... [2020-12-03 01:08:48,900 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 01:08:48,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 01:08:48,901 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 01:08:48,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 01:08:48,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:08:48" (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 [2020-12-03 01:08:49,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-03 01:08:49,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-03 01:08:49,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-03 01:08:49,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-03 01:08:49,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-03 01:08:49,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 01:08:49,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 01:08:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-03 01:08:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-12-03 01:08:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-03 01:08:49,566 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 01:08:49,566 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2020-12-03 01:08:49,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:08:49 BoogieIcfgContainer [2020-12-03 01:08:49,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 01:08:49,570 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-03 01:08:49,570 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-03 01:08:49,574 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-03 01:08:49,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 01:08:48" (1/3) ... [2020-12-03 01:08:49,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3323627b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 01:08:49, skipping insertion in model container [2020-12-03 01:08:49,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:08:48" (2/3) ... [2020-12-03 01:08:49,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3323627b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 01:08:49, skipping insertion in model container [2020-12-03 01:08:49,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:08:49" (3/3) ... [2020-12-03 01:08:49,582 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121a.c [2020-12-03 01:08:49,600 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-03 01:08:49,604 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-03 01:08:49,622 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-03 01:08:49,655 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-03 01:08:49,655 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-03 01:08:49,656 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-03 01:08:49,656 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-03 01:08:49,656 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-03 01:08:49,656 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-03 01:08:49,657 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-03 01:08:49,657 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-03 01:08:49,676 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2020-12-03 01:08:49,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-03 01:08:49,682 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 01:08:49,683 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 01:08:49,684 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 01:08:49,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 01:08:49,691 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2020-12-03 01:08:49,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-03 01:08:49,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250712255] [2020-12-03 01:08:49,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 01:08:49,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 01:08:49,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 01:08:49,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250712255] [2020-12-03 01:08:49,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 01:08:49,922 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-03 01:08:49,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560749764] [2020-12-03 01:08:49,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-03 01:08:49,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-03 01:08:49,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-03 01:08:49,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-03 01:08:49,954 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 2 states. [2020-12-03 01:08:49,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 01:08:49,994 INFO L93 Difference]: Finished difference Result 108 states and 190 transitions. [2020-12-03 01:08:49,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-03 01:08:49,996 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-03 01:08:49,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 01:08:50,020 INFO L225 Difference]: With dead ends: 108 [2020-12-03 01:08:50,021 INFO L226 Difference]: Without dead ends: 52 [2020-12-03 01:08:50,026 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 [2020-12-03 01:08:50,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-12-03 01:08:50,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-12-03 01:08:50,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-12-03 01:08:50,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2020-12-03 01:08:50,085 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2020-12-03 01:08:50,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 01:08:50,086 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2020-12-03 01:08:50,086 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-03 01:08:50,086 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2020-12-03 01:08:50,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-03 01:08:50,088 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 01:08:50,089 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 01:08:50,089 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-03 01:08:50,090 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 01:08:50,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 01:08:50,093 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2020-12-03 01:08:50,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-03 01:08:50,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161444878] [2020-12-03 01:08:50,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 01:08:50,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 01:08:50,219 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 01:08:50,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 01:08:50,278 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 01:08:50,308 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-03 01:08:50,308 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-03 01:08:50,310 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-03 01:08:50,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 01:08:50 BoogieIcfgContainer [2020-12-03 01:08:50,348 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-03 01:08:50,349 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 01:08:50,349 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 01:08:50,349 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 01:08:50,350 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:08:49" (3/4) ... [2020-12-03 01:08:50,353 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-03 01:08:50,354 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 01:08:50,356 INFO L168 Benchmark]: Toolchain (without parser) took 2032.91 ms. Allocated memory was 46.1 MB in the beginning and 69.2 MB in the end (delta: 23.1 MB). Free memory was 23.3 MB in the beginning and 50.3 MB in the end (delta: -27.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 01:08:50,358 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 46.1 MB. Free memory was 29.2 MB in the beginning and 29.2 MB in the end (delta: 33.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 01:08:50,359 INFO L168 Benchmark]: CACSL2BoogieTranslator took 459.07 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 23.1 MB in the beginning and 40.9 MB in the end (delta: -17.8 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. [2020-12-03 01:08:50,360 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.87 ms. Allocated memory is still 56.6 MB. Free memory was 40.9 MB in the beginning and 38.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 01:08:50,361 INFO L168 Benchmark]: Boogie Preprocessor took 51.66 ms. Allocated memory is still 56.6 MB. Free memory was 38.4 MB in the beginning and 36.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 01:08:50,362 INFO L168 Benchmark]: RCFGBuilder took 667.45 ms. Allocated memory is still 56.6 MB. Free memory was 36.5 MB in the beginning and 33.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. [2020-12-03 01:08:50,363 INFO L168 Benchmark]: TraceAbstraction took 777.87 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 33.1 MB in the beginning and 50.7 MB in the end (delta: -17.6 MB). Peak memory consumption was 13.0 MB. Max. memory is 16.1 GB. [2020-12-03 01:08:50,363 INFO L168 Benchmark]: Witness Printer took 5.47 ms. Allocated memory is still 69.2 MB. Free memory was 50.7 MB in the beginning and 50.3 MB in the end (delta: 391.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 01:08:50,368 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 46.1 MB. Free memory was 29.2 MB in the beginning and 29.2 MB in the end (delta: 33.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 459.07 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 23.1 MB in the beginning and 40.9 MB in the end (delta: -17.8 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.87 ms. Allocated memory is still 56.6 MB. Free memory was 40.9 MB in the beginning and 38.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.66 ms. Allocated memory is still 56.6 MB. Free memory was 38.4 MB in the beginning and 36.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 667.45 ms. Allocated memory is still 56.6 MB. Free memory was 36.5 MB in the beginning and 33.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 777.87 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 33.1 MB in the beginning and 50.7 MB in the end (delta: -17.6 MB). Peak memory consumption was 13.0 MB. Max. memory is 16.1 GB. * Witness Printer took 5.47 ms. Allocated memory is still 69.2 MB. Free memory was 50.7 MB in the beginning and 50.3 MB in the end (delta: 391.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 177]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 46, overapproximation of someUnaryDOUBLEoperation at line 22, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47, 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}] [L171] double x = __VERIFIER_nondet_double(); [L172] double y = 0.0; [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}] [L173] double res = fmod_double(x, y); [L18] return x != x; VAL [one_fmod=1, Zero_fmod={9:0}] [L176] COND TRUE !isnan_double(res) [L177] reach_error() VAL [one_fmod=1, Zero_fmod={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, 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=55occurred 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 0.2.0-7b2dab5 [2020-12-03 01:08:52,870 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 01:08:52,872 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 01:08:52,916 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 01:08:52,917 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 01:08:52,922 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 01:08:52,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 01:08:52,931 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 01:08:52,934 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 01:08:52,942 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 01:08:52,943 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 01:08:52,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 01:08:52,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 01:08:52,951 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 01:08:52,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 01:08:52,955 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 01:08:52,956 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 01:08:52,958 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 01:08:52,961 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 01:08:52,969 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 01:08:52,972 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 01:08:52,974 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 01:08:52,979 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 01:08:52,980 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 01:08:52,985 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 01:08:52,988 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 01:08:52,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 01:08:52,991 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 01:08:52,991 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 01:08:52,992 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 01:08:52,993 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 01:08:52,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 01:08:52,995 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 01:08:52,996 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 01:08:52,999 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 01:08:53,000 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 01:08:53,001 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 01:08:53,001 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 01:08:53,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 01:08:53,003 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 01:08:53,004 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 01:08:53,005 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-03 01:08:53,060 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 01:08:53,060 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 01:08:53,064 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-03 01:08:53,064 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-03 01:08:53,065 INFO L138 SettingsManager]: * Use SBE=true [2020-12-03 01:08:53,065 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 01:08:53,065 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-03 01:08:53,065 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-03 01:08:53,065 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 01:08:53,066 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 01:08:53,067 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 01:08:53,067 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 01:08:53,067 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-03 01:08:53,068 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-03 01:08:53,068 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-03 01:08:53,068 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 01:08:53,068 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 01:08:53,068 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 01:08:53,069 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 01:08:53,069 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-03 01:08:53,069 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-03 01:08:53,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 01:08:53,070 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 01:08:53,070 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 01:08:53,070 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 01:08:53,070 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-03 01:08:53,071 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-03 01:08:53,071 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 01:08:53,071 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-03 01:08:53,071 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-03 01:08:53,071 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1ef2080ffd97f82ac51854e7d9813eba864fd0a [2020-12-03 01:08:53,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 01:08:53,573 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 01:08:53,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 01:08:53,578 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 01:08:53,579 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 01:08:53,580 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1121a.c [2020-12-03 01:08:53,669 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47c9ad3f4/f4cf495883df4ea5b49d9018bf35b10f/FLAG89fa4a71a [2020-12-03 01:08:54,223 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 01:08:54,224 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1121a.c [2020-12-03 01:08:54,246 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47c9ad3f4/f4cf495883df4ea5b49d9018bf35b10f/FLAG89fa4a71a [2020-12-03 01:08:54,591 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47c9ad3f4/f4cf495883df4ea5b49d9018bf35b10f [2020-12-03 01:08:54,595 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 01:08:54,600 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 01:08:54,604 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 01:08:54,607 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 01:08:54,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 01:08:54,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:08:54" (1/1) ... [2020-12-03 01:08:54,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@109902ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:08:54, skipping insertion in model container [2020-12-03 01:08:54,620 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:08:54" (1/1) ... [2020-12-03 01:08:54,631 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 01:08:54,659 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 01:08:54,978 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1121a.c[3883,3896] [2020-12-03 01:08:54,987 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 01:08:55,011 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 01:08:55,076 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1121a.c[3883,3896] [2020-12-03 01:08:55,077 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 01:08:55,102 INFO L208 MainTranslator]: Completed translation [2020-12-03 01:08:55,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:08:55 WrapperNode [2020-12-03 01:08:55,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 01:08:55,104 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 01:08:55,105 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 01:08:55,105 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 01:08:55,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:08:55" (1/1) ... [2020-12-03 01:08:55,130 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:08:55" (1/1) ... [2020-12-03 01:08:55,163 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 01:08:55,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 01:08:55,165 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 01:08:55,165 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 01:08:55,177 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:08:55" (1/1) ... [2020-12-03 01:08:55,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:08:55" (1/1) ... [2020-12-03 01:08:55,184 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:08:55" (1/1) ... [2020-12-03 01:08:55,184 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:08:55" (1/1) ... [2020-12-03 01:08:55,198 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:08:55" (1/1) ... [2020-12-03 01:08:55,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:08:55" (1/1) ... [2020-12-03 01:08:55,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:08:55" (1/1) ... [2020-12-03 01:08:55,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 01:08:55,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 01:08:55,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 01:08:55,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 01:08:55,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:08:55" (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 [2020-12-03 01:08:55,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-03 01:08:55,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-03 01:08:55,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-03 01:08:55,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-03 01:08:55,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-12-03 01:08:55,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-03 01:08:55,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 01:08:55,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 01:08:55,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-03 01:08:55,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-03 01:09:00,928 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 01:09:00,929 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2020-12-03 01:09:00,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:09:00 BoogieIcfgContainer [2020-12-03 01:09:00,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 01:09:00,933 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-03 01:09:00,934 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-03 01:09:00,937 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-03 01:09:00,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 01:08:54" (1/3) ... [2020-12-03 01:09:00,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e78777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 01:09:00, skipping insertion in model container [2020-12-03 01:09:00,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:08:55" (2/3) ... [2020-12-03 01:09:00,940 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e78777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 01:09:00, skipping insertion in model container [2020-12-03 01:09:00,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:09:00" (3/3) ... [2020-12-03 01:09:00,942 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121a.c [2020-12-03 01:09:00,959 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-03 01:09:00,964 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-03 01:09:00,978 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-03 01:09:01,009 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-03 01:09:01,010 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-03 01:09:01,010 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-03 01:09:01,018 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-03 01:09:01,018 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-03 01:09:01,019 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-03 01:09:01,019 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-03 01:09:01,019 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-03 01:09:01,035 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2020-12-03 01:09:01,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-03 01:09:01,041 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 01:09:01,042 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 01:09:01,043 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 01:09:01,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 01:09:01,050 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2020-12-03 01:09:01,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-03 01:09:01,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1657307375] [2020-12-03 01:09:01,065 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 [2020-12-03 01:09:02,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 01:09:02,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-03 01:09:02,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 01:09:02,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 01:09:02,321 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 01:09:02,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1657307375] [2020-12-03 01:09:02,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 01:09:02,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-03 01:09:02,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430834053] [2020-12-03 01:09:02,331 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-03 01:09:02,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-03 01:09:02,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-03 01:09:02,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-03 01:09:02,357 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 2 states. [2020-12-03 01:09:02,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 01:09:02,382 INFO L93 Difference]: Finished difference Result 108 states and 190 transitions. [2020-12-03 01:09:02,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-03 01:09:02,384 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-03 01:09:02,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 01:09:02,393 INFO L225 Difference]: With dead ends: 108 [2020-12-03 01:09:02,393 INFO L226 Difference]: Without dead ends: 52 [2020-12-03 01:09:02,397 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-03 01:09:02,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-12-03 01:09:02,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-12-03 01:09:02,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-12-03 01:09:02,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2020-12-03 01:09:02,445 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2020-12-03 01:09:02,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 01:09:02,445 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2020-12-03 01:09:02,446 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-03 01:09:02,446 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2020-12-03 01:09:02,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-03 01:09:02,446 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 01:09:02,447 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 01:09:02,647 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-03 01:09:02,648 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 01:09:02,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 01:09:02,651 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2020-12-03 01:09:02,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-03 01:09:02,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [231100910] [2020-12-03 01:09:02,653 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 [2020-12-03 01:09:03,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 01:09:03,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-03 01:09:03,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 01:09:06,138 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (= |c_ULTIMATE.start_fmod_double_#res| (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_double_~x (_ +zero 11 53)))) (fp.div roundNearestTiesToEven .cse0 .cse0)))) is different from false [2020-12-03 01:09:09,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 01:09:09,784 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 01:09:09,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [231100910] [2020-12-03 01:09:09,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 01:09:09,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-03 01:09:09,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999766005] [2020-12-03 01:09:09,787 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-03 01:09:09,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-03 01:09:09,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-03 01:09:09,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=21, Unknown=1, NotChecked=8, Total=42 [2020-12-03 01:09:09,790 INFO L87 Difference]: Start difference. First operand 52 states and 78 transitions. Second operand 7 states. [2020-12-03 01:09:15,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 01:09:15,888 INFO L93 Difference]: Finished difference Result 63 states and 87 transitions. [2020-12-03 01:09:15,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-03 01:09:15,921 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2020-12-03 01:09:15,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 01:09:15,923 INFO L225 Difference]: With dead ends: 63 [2020-12-03 01:09:15,923 INFO L226 Difference]: Without dead ends: 58 [2020-12-03 01:09:15,924 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=16, Invalid=29, Unknown=1, NotChecked=10, Total=56 [2020-12-03 01:09:15,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-12-03 01:09:15,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 52. [2020-12-03 01:09:15,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-12-03 01:09:15,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2020-12-03 01:09:15,934 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 77 transitions. Word has length 12 [2020-12-03 01:09:15,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 01:09:15,934 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 77 transitions. [2020-12-03 01:09:15,934 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-03 01:09:15,935 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2020-12-03 01:09:15,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-03 01:09:15,935 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 01:09:15,936 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 01:09:16,146 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-03 01:09:16,146 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 01:09:16,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 01:09:16,149 INFO L82 PathProgramCache]: Analyzing trace with hash -910533226, now seen corresponding path program 1 times [2020-12-03 01:09:16,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-03 01:09:16,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1680850780] [2020-12-03 01:09:16,151 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 [2020-12-03 01:09:16,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 01:09:16,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-03 01:09:16,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 01:09:16,426 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2020-12-03 01:09:16,459 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-03 01:09:16,486 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-03 01:09:16,487 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-03 01:09:16,590 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-12-03 01:09:16,590 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-03 01:09:16,593 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-03 01:09:16,593 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:18 [2020-12-03 01:09:16,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 01:09:16,873 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 01:09:16,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1680850780] [2020-12-03 01:09:16,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 01:09:16,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-03 01:09:16,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20617934] [2020-12-03 01:09:16,875 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-03 01:09:16,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-03 01:09:16,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-03 01:09:16,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-03 01:09:16,877 INFO L87 Difference]: Start difference. First operand 52 states and 77 transitions. Second operand 4 states. [2020-12-03 01:09:17,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 01:09:17,034 INFO L93 Difference]: Finished difference Result 52 states and 77 transitions. [2020-12-03 01:09:17,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-03 01:09:17,035 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-12-03 01:09:17,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 01:09:17,036 INFO L225 Difference]: With dead ends: 52 [2020-12-03 01:09:17,036 INFO L226 Difference]: Without dead ends: 0 [2020-12-03 01:09:17,037 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-03 01:09:17,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-03 01:09:17,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-03 01:09:17,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-03 01:09:17,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-03 01:09:17,037 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-12-03 01:09:17,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 01:09:17,038 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-03 01:09:17,038 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-03 01:09:17,038 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-03 01:09:17,038 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-03 01:09:17,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-03 01:09:17,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-03 01:09:19,220 WARN L197 SmtUtils]: Spent 1.79 s on a formula simplification that was a NOOP. DAG size: 8 [2020-12-03 01:09:19,266 INFO L262 CegarLoopResult]: For program point L35-2(lines 35 40) no Hoare annotation was computed. [2020-12-03 01:09:19,267 INFO L258 CegarLoopResult]: At program point L68-3(lines 68 69) the Hoare annotation is: false [2020-12-03 01:09:19,267 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-03 01:09:19,267 INFO L262 CegarLoopResult]: For program point L136-1(lines 136 141) no Hoare annotation was computed. [2020-12-03 01:09:19,267 INFO L262 CegarLoopResult]: For program point L103-1(lines 103 117) no Hoare annotation was computed. [2020-12-03 01:09:19,267 INFO L258 CegarLoopResult]: At program point L136-2(lines 136 141) the Hoare annotation is: false [2020-12-03 01:09:19,267 INFO L262 CegarLoopResult]: For program point L103-3(lines 103 117) no Hoare annotation was computed. [2020-12-03 01:09:19,267 INFO L262 CegarLoopResult]: For program point L120(lines 120 121) no Hoare annotation was computed. [2020-12-03 01:09:19,267 INFO L262 CegarLoopResult]: For program point L120-2(lines 25 163) no Hoare annotation was computed. [2020-12-03 01:09:19,268 INFO L262 CegarLoopResult]: For program point L71-2(lines 71 72) no Hoare annotation was computed. [2020-12-03 01:09:19,268 INFO L258 CegarLoopResult]: At program point L71-3(lines 71 72) the Hoare annotation is: false [2020-12-03 01:09:19,268 INFO L262 CegarLoopResult]: For program point L154(lines 154 159) no Hoare annotation was computed. [2020-12-03 01:09:19,268 INFO L262 CegarLoopResult]: For program point L154-1(lines 142 161) no Hoare annotation was computed. [2020-12-03 01:09:19,268 INFO L262 CegarLoopResult]: For program point L154-2(lines 154 159) no Hoare annotation was computed. [2020-12-03 01:09:19,268 INFO L262 CegarLoopResult]: For program point L55(lines 25 163) no Hoare annotation was computed. [2020-12-03 01:09:19,268 INFO L262 CegarLoopResult]: For program point L122-1(lines 25 163) no Hoare annotation was computed. [2020-12-03 01:09:19,268 INFO L262 CegarLoopResult]: For program point L56(lines 56 62) no Hoare annotation was computed. [2020-12-03 01:09:19,268 INFO L262 CegarLoopResult]: For program point L106(lines 106 107) no Hoare annotation was computed. [2020-12-03 01:09:19,269 INFO L262 CegarLoopResult]: For program point L106-2(lines 103 117) no Hoare annotation was computed. [2020-12-03 01:09:19,269 INFO L262 CegarLoopResult]: For program point L57-2(lines 57 58) no Hoare annotation was computed. [2020-12-03 01:09:19,269 INFO L258 CegarLoopResult]: At program point L57-3(lines 57 58) the Hoare annotation is: false [2020-12-03 01:09:19,269 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-03 01:09:19,271 INFO L258 CegarLoopResult]: At program point L108-1(lines 103 117) the Hoare annotation is: false [2020-12-03 01:09:19,271 INFO L262 CegarLoopResult]: For program point L93(lines 93 99) no Hoare annotation was computed. [2020-12-03 01:09:19,271 INFO L262 CegarLoopResult]: For program point L93-2(lines 89 100) no Hoare annotation was computed. [2020-12-03 01:09:19,272 INFO L262 CegarLoopResult]: For program point L60-2(lines 60 61) no Hoare annotation was computed. [2020-12-03 01:09:19,272 INFO L258 CegarLoopResult]: At program point L60-3(lines 60 61) the Hoare annotation is: false [2020-12-03 01:09:19,272 INFO L262 CegarLoopResult]: For program point L176(lines 176 179) no Hoare annotation was computed. [2020-12-03 01:09:19,272 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-03 01:09:19,274 INFO L262 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-12-03 01:09:19,275 INFO L262 CegarLoopResult]: For program point L144(lines 144 153) no Hoare annotation was computed. [2020-12-03 01:09:19,275 INFO L262 CegarLoopResult]: For program point L45(lines 45 47) no Hoare annotation was computed. [2020-12-03 01:09:19,275 INFO L262 CegarLoopResult]: For program point L29-1(lines 29 34) no Hoare annotation was computed. [2020-12-03 01:09:19,275 INFO L258 CegarLoopResult]: At program point L29-2(lines 29 34) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_fmod_double_~y (_ +zero 11 53))) [2020-12-03 01:09:19,275 INFO L262 CegarLoopResult]: For program point L112(lines 112 113) no Hoare annotation was computed. [2020-12-03 01:09:19,276 INFO L258 CegarLoopResult]: At program point L162(lines 25 163) the Hoare annotation is: (exists ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (= |ULTIMATE.start_fmod_double_#res| (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_double_~x (_ +zero 11 53)))) (fp.div roundNearestTiesToEven .cse0 .cse0)))) [2020-12-03 01:09:19,276 INFO L258 CegarLoopResult]: At program point L129-2(lines 129 133) the Hoare annotation is: false [2020-12-03 01:09:19,276 INFO L262 CegarLoopResult]: For program point L129-3(lines 25 163) no Hoare annotation was computed. [2020-12-03 01:09:19,276 INFO L262 CegarLoopResult]: For program point L147(lines 147 153) no Hoare annotation was computed. [2020-12-03 01:09:19,277 INFO L262 CegarLoopResult]: For program point L81(lines 81 87) no Hoare annotation was computed. [2020-12-03 01:09:19,277 INFO L262 CegarLoopResult]: For program point L48(lines 48 53) no Hoare annotation was computed. [2020-12-03 01:09:19,277 INFO L262 CegarLoopResult]: For program point L81-2(lines 25 163) no Hoare annotation was computed. [2020-12-03 01:09:19,277 INFO L262 CegarLoopResult]: For program point L48-2(lines 25 163) no Hoare annotation was computed. [2020-12-03 01:09:19,277 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-03 01:09:19,278 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 177) no Hoare annotation was computed. [2020-12-03 01:09:19,278 INFO L265 CegarLoopResult]: At program point L181(lines 165 182) the Hoare annotation is: true [2020-12-03 01:09:19,278 INFO L262 CegarLoopResult]: For program point L49(lines 49 50) no Hoare annotation was computed. [2020-12-03 01:09:19,278 INFO L262 CegarLoopResult]: For program point L66(lines 25 163) no Hoare annotation was computed. [2020-12-03 01:09:19,278 INFO L262 CegarLoopResult]: For program point L67(lines 67 73) no Hoare annotation was computed. [2020-12-03 01:09:19,279 INFO L262 CegarLoopResult]: For program point L51(lines 51 52) no Hoare annotation was computed. [2020-12-03 01:09:19,279 INFO L258 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|) [2020-12-03 01:09:19,279 INFO L262 CegarLoopResult]: For program point L134(lines 134 161) no Hoare annotation was computed. [2020-12-03 01:09:19,279 INFO L262 CegarLoopResult]: For program point L35(lines 35 40) no Hoare annotation was computed. [2020-12-03 01:09:19,279 INFO L262 CegarLoopResult]: For program point L35-1(lines 25 163) no Hoare annotation was computed. [2020-12-03 01:09:19,280 INFO L262 CegarLoopResult]: For program point L68-2(lines 68 69) no Hoare annotation was computed. [2020-12-03 01:09:19,292 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:09:19,296 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:09:19,297 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:09:19,298 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:09:19,298 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2020-12-03 01:09:19,298 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:09:19,298 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2020-12-03 01:09:19,299 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:09:19,300 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:09:19,300 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2020-12-03 01:09:19,300 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:09:19,300 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2020-12-03 01:09:19,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 01:09:19 BoogieIcfgContainer [2020-12-03 01:09:19,303 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-03 01:09:19,304 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 01:09:19,304 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 01:09:19,305 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 01:09:19,305 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:09:00" (3/4) ... [2020-12-03 01:09:19,310 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-03 01:09:19,324 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-03 01:09:19,324 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-03 01:09:19,324 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-03 01:09:19,325 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-03 01:09:19,369 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-03 01:09:19,370 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 01:09:19,371 INFO L168 Benchmark]: Toolchain (without parser) took 24773.96 ms. Allocated memory was 46.1 MB in the beginning and 60.8 MB in the end (delta: 14.7 MB). Free memory was 22.8 MB in the beginning and 25.8 MB in the end (delta: -3.0 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. [2020-12-03 01:09:19,372 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 46.1 MB. Free memory is still 27.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 01:09:19,373 INFO L168 Benchmark]: CACSL2BoogieTranslator took 499.91 ms. Allocated memory was 46.1 MB in the beginning and 60.8 MB in the end (delta: 14.7 MB). Free memory was 22.5 MB in the beginning and 34.6 MB in the end (delta: -12.1 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-12-03 01:09:19,374 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.12 ms. Allocated memory is still 60.8 MB. Free memory was 34.4 MB in the beginning and 32.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 01:09:19,374 INFO L168 Benchmark]: Boogie Preprocessor took 52.72 ms. Allocated memory is still 60.8 MB. Free memory was 32.4 MB in the beginning and 30.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 01:09:19,375 INFO L168 Benchmark]: RCFGBuilder took 5713.42 ms. Allocated memory is still 60.8 MB. Free memory was 30.1 MB in the beginning and 29.6 MB in the end (delta: 516.1 kB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2020-12-03 01:09:19,376 INFO L168 Benchmark]: TraceAbstraction took 18370.32 ms. Allocated memory is still 60.8 MB. Free memory was 29.1 MB in the beginning and 28.8 MB in the end (delta: 285.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 01:09:19,377 INFO L168 Benchmark]: Witness Printer took 65.73 ms. Allocated memory is still 60.8 MB. Free memory was 28.8 MB in the beginning and 25.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-03 01:09:19,381 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 46.1 MB. Free memory is still 27.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 499.91 ms. Allocated memory was 46.1 MB in the beginning and 60.8 MB in the end (delta: 14.7 MB). Free memory was 22.5 MB in the beginning and 34.6 MB in the end (delta: -12.1 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.12 ms. Allocated memory is still 60.8 MB. Free memory was 34.4 MB in the beginning and 32.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.72 ms. Allocated memory is still 60.8 MB. Free memory was 32.4 MB in the beginning and 30.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 5713.42 ms. Allocated memory is still 60.8 MB. Free memory was 30.1 MB in the beginning and 29.6 MB in the end (delta: 516.1 kB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 18370.32 ms. Allocated memory is still 60.8 MB. Free memory was 29.1 MB in the beginning and 28.8 MB in the end (delta: 285.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 65.73 ms. Allocated memory is still 60.8 MB. Free memory was 28.8 MB in the beginning and 25.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 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 - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 177]: call to reach_error is unreachable For all program executions holds that call to reach_error is 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: 165]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 29]: Loop Invariant [2020-12-03 01:09:19,394 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:09:19,394 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && y == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: 0 - 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 [2020-12-03 01:09:19,396 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:09:19,396 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:09:19,396 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2020-12-03 01:09:19,397 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:09:19,397 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2020-12-03 01:09:19,397 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:09:19,398 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:09:19,398 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2020-12-03 01:09:19,398 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 01:09:19,398 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] Derived loop invariant: (\exists ULTIMATE.start_fmod_double_~x : C_DOUBLE :: \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.mul~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start_fmod_double_~x, ~Pluszero~LONGDOUBLE()), ~fp.mul~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start_fmod_double_~x, ~Pluszero~LONGDOUBLE()))) - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 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, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 16.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 161 SDtfs, 78 SDslu, 161 SDs, 0 SdLazy, 15 SolverSat, 1 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 5.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred 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, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 15 NumberOfFragments, 31 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 33 ConstructedInterpolants, 4 QuantifiedInterpolants, 1745 SizeOfPredicates, 16 NumberOfNonLiveVariables, 199 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...