./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench/freire1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6692e4fc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench/freire1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6017351e7baf6c9b5817e3723e370f1f22bcdd89 ........................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench/freire1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6017351e7baf6c9b5817e3723e370f1f22bcdd89 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6692e4f [2019-11-25 17:41:50,480 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 17:41:50,483 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 17:41:50,501 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 17:41:50,502 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 17:41:50,504 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 17:41:50,506 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 17:41:50,515 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 17:41:50,521 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 17:41:50,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 17:41:50,525 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 17:41:50,527 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 17:41:50,528 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 17:41:50,531 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 17:41:50,532 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 17:41:50,534 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 17:41:50,536 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 17:41:50,537 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 17:41:50,539 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 17:41:50,543 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 17:41:50,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 17:41:50,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 17:41:50,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 17:41:50,554 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 17:41:50,558 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 17:41:50,558 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 17:41:50,558 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 17:41:50,560 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 17:41:50,561 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 17:41:50,562 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 17:41:50,562 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 17:41:50,563 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 17:41:50,564 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 17:41:50,565 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 17:41:50,566 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 17:41:50,566 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 17:41:50,567 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 17:41:50,567 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 17:41:50,568 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 17:41:50,568 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 17:41:50,570 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 17:41:50,571 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 17:41:50,591 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 17:41:50,597 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 17:41:50,599 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 17:41:50,599 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 17:41:50,600 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 17:41:50,600 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 17:41:50,600 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 17:41:50,600 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 17:41:50,601 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 17:41:50,601 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 17:41:50,602 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 17:41:50,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 17:41:50,603 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 17:41:50,603 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 17:41:50,603 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 17:41:50,604 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 17:41:50,604 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 17:41:50,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 17:41:50,604 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 17:41:50,605 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 17:41:50,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 17:41:50,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 17:41:50,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 17:41:50,606 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 17:41:50,606 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 17:41:50,606 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 17:41:50,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 17:41:50,607 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 17:41:50,607 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6017351e7baf6c9b5817e3723e370f1f22bcdd89 [2019-11-25 17:41:50,900 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 17:41:50,919 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 17:41:50,924 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 17:41:50,926 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 17:41:50,927 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 17:41:50,928 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/freire1.c [2019-11-25 17:41:50,996 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8236c917/716cc8822dbf4a0fa6dbf360e5369631/FLAGfff3e811b [2019-11-25 17:41:51,480 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 17:41:51,481 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/freire1.c [2019-11-25 17:41:51,489 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8236c917/716cc8822dbf4a0fa6dbf360e5369631/FLAGfff3e811b [2019-11-25 17:41:51,974 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8236c917/716cc8822dbf4a0fa6dbf360e5369631 [2019-11-25 17:41:51,979 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 17:41:51,981 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 17:41:51,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 17:41:51,983 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 17:41:51,986 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 17:41:51,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:41:51" (1/1) ... [2019-11-25 17:41:51,991 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3345dbb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:51, skipping insertion in model container [2019-11-25 17:41:51,991 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:41:51" (1/1) ... [2019-11-25 17:41:51,999 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 17:41:52,018 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-25 17:41:52,220 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 17:41:52,223 INFO L203 MainTranslator]: Completed pre-run [2019-11-25 17:41:52,239 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 17:41:52,253 INFO L208 MainTranslator]: Completed translation [2019-11-25 17:41:52,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:52 WrapperNode [2019-11-25 17:41:52,254 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 17:41:52,255 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 17:41:52,255 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 17:41:52,256 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 17:41:52,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:52" (1/1) ... [2019-11-25 17:41:52,325 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:52" (1/1) ... [2019-11-25 17:41:52,341 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 17:41:52,342 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 17:41:52,342 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 17:41:52,342 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 17:41:52,351 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:52" (1/1) ... [2019-11-25 17:41:52,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:52" (1/1) ... [2019-11-25 17:41:52,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:52" (1/1) ... [2019-11-25 17:41:52,352 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:52" (1/1) ... [2019-11-25 17:41:52,355 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:52" (1/1) ... [2019-11-25 17:41:52,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:52" (1/1) ... [2019-11-25 17:41:52,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:52" (1/1) ... [2019-11-25 17:41:52,378 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 17:41:52,379 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 17:41:52,379 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 17:41:52,379 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 17:41:52,380 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 17:41:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 17:41:52,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 17:41:52,604 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 17:41:52,604 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-25 17:41:52,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:41:52 BoogieIcfgContainer [2019-11-25 17:41:52,606 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 17:41:52,607 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 17:41:52,607 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 17:41:52,611 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 17:41:52,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:41:51" (1/3) ... [2019-11-25 17:41:52,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ffed0ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:41:52, skipping insertion in model container [2019-11-25 17:41:52,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:52" (2/3) ... [2019-11-25 17:41:52,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ffed0ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:41:52, skipping insertion in model container [2019-11-25 17:41:52,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:41:52" (3/3) ... [2019-11-25 17:41:52,615 INFO L109 eAbstractionObserver]: Analyzing ICFG freire1.c [2019-11-25 17:41:52,626 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 17:41:52,640 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-25 17:41:52,667 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-25 17:41:52,706 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 17:41:52,707 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 17:41:52,707 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 17:41:52,707 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 17:41:52,708 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 17:41:52,708 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 17:41:52,708 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 17:41:52,709 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 17:41:52,726 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-25 17:41:52,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-25 17:41:52,733 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 17:41:52,734 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-25 17:41:52,735 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 17:41:52,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 17:41:52,746 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2019-11-25 17:41:52,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 17:41:52,759 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831597064] [2019-11-25 17:41:52,759 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 17:41:52,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 17:41:52,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 17:41:52,855 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 17:41:52,856 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 17:41:52,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:41:52 BoogieIcfgContainer [2019-11-25 17:41:52,874 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 17:41:52,875 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 17:41:52,875 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 17:41:52,875 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 17:41:52,876 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:41:52" (3/4) ... [2019-11-25 17:41:52,880 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 17:41:52,880 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 17:41:52,884 INFO L168 Benchmark]: Toolchain (without parser) took 901.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -159.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 17:41:52,885 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 17:41:52,886 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.48 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-25 17:41:52,887 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -196.2 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. [2019-11-25 17:41:52,888 INFO L168 Benchmark]: Boogie Preprocessor took 36.37 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 17:41:52,889 INFO L168 Benchmark]: RCFGBuilder took 227.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2019-11-25 17:41:52,890 INFO L168 Benchmark]: TraceAbstraction took 267.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2019-11-25 17:41:52,891 INFO L168 Benchmark]: Witness Printer took 5.57 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 17:41:52,896 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 272.48 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 86.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -196.2 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.37 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 227.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 267.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * Witness Printer took 5.57 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 14]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 27, overapproximation of someBinaryArithmeticDOUBLEoperation at line 23. Possible FailurePath: [L20] int r; [L21] double a, x; [L22] a = __VERIFIER_nondet_double() [L23] x = a / 2.0 [L24] r = 0 [L26] COND TRUE 1 [L12] COND TRUE !(cond) [L14] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 2 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-6692e4f [2019-11-25 17:41:54,809 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 17:41:54,811 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 17:41:54,823 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 17:41:54,824 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 17:41:54,825 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 17:41:54,826 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 17:41:54,828 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 17:41:54,830 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 17:41:54,831 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 17:41:54,832 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 17:41:54,834 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 17:41:54,834 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 17:41:54,838 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 17:41:54,839 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 17:41:54,840 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 17:41:54,841 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 17:41:54,842 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 17:41:54,843 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 17:41:54,846 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 17:41:54,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 17:41:54,849 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 17:41:54,852 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 17:41:54,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 17:41:54,856 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 17:41:54,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 17:41:54,859 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 17:41:54,860 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 17:41:54,860 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 17:41:54,861 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 17:41:54,862 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 17:41:54,863 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 17:41:54,863 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 17:41:54,864 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 17:41:54,866 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 17:41:54,866 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 17:41:54,867 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 17:41:54,867 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 17:41:54,867 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 17:41:54,868 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 17:41:54,869 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 17:41:54,871 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-25 17:41:54,886 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 17:41:54,886 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 17:41:54,888 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 17:41:54,888 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 17:41:54,888 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 17:41:54,889 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 17:41:54,889 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 17:41:54,889 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 17:41:54,889 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 17:41:54,890 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 17:41:54,890 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 17:41:54,890 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 17:41:54,890 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-25 17:41:54,891 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-25 17:41:54,891 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 17:41:54,891 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 17:41:54,892 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 17:41:54,892 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 17:41:54,892 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 17:41:54,892 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 17:41:54,893 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 17:41:54,893 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 17:41:54,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 17:41:54,894 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 17:41:54,894 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 17:41:54,894 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 17:41:54,895 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-25 17:41:54,895 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-25 17:41:54,895 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 17:41:54,895 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-25 17:41:54,896 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6017351e7baf6c9b5817e3723e370f1f22bcdd89 [2019-11-25 17:41:55,198 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 17:41:55,211 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 17:41:55,214 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 17:41:55,215 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 17:41:55,216 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 17:41:55,217 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/freire1.c [2019-11-25 17:41:55,274 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab2da30b1/239117348c1241c2ae6bf644b1b4fd42/FLAG1dab104a6 [2019-11-25 17:41:55,712 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 17:41:55,712 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/freire1.c [2019-11-25 17:41:55,720 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab2da30b1/239117348c1241c2ae6bf644b1b4fd42/FLAG1dab104a6 [2019-11-25 17:41:56,104 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab2da30b1/239117348c1241c2ae6bf644b1b4fd42 [2019-11-25 17:41:56,108 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 17:41:56,110 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 17:41:56,111 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 17:41:56,112 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 17:41:56,115 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 17:41:56,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:41:56" (1/1) ... [2019-11-25 17:41:56,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33519a14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:56, skipping insertion in model container [2019-11-25 17:41:56,120 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:41:56" (1/1) ... [2019-11-25 17:41:56,128 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 17:41:56,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-25 17:41:56,313 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 17:41:56,319 INFO L203 MainTranslator]: Completed pre-run [2019-11-25 17:41:56,335 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 17:41:56,352 INFO L208 MainTranslator]: Completed translation [2019-11-25 17:41:56,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:56 WrapperNode [2019-11-25 17:41:56,352 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 17:41:56,353 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 17:41:56,354 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 17:41:56,354 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 17:41:56,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:56" (1/1) ... [2019-11-25 17:41:56,370 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:56" (1/1) ... [2019-11-25 17:41:56,442 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 17:41:56,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 17:41:56,443 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 17:41:56,443 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 17:41:56,451 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:56" (1/1) ... [2019-11-25 17:41:56,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:56" (1/1) ... [2019-11-25 17:41:56,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:56" (1/1) ... [2019-11-25 17:41:56,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:56" (1/1) ... [2019-11-25 17:41:56,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:56" (1/1) ... [2019-11-25 17:41:56,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:56" (1/1) ... [2019-11-25 17:41:56,470 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:56" (1/1) ... [2019-11-25 17:41:56,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 17:41:56,474 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 17:41:56,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 17:41:56,474 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 17:41:56,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:56" (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 [2019-11-25 17:41:56,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 17:41:56,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 17:42:01,654 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 17:42:01,654 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-25 17:42:01,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:42:01 BoogieIcfgContainer [2019-11-25 17:42:01,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 17:42:01,656 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 17:42:01,656 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 17:42:01,659 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 17:42:01,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:41:56" (1/3) ... [2019-11-25 17:42:01,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d1fe70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:42:01, skipping insertion in model container [2019-11-25 17:42:01,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:56" (2/3) ... [2019-11-25 17:42:01,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d1fe70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:42:01, skipping insertion in model container [2019-11-25 17:42:01,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:42:01" (3/3) ... [2019-11-25 17:42:01,662 INFO L109 eAbstractionObserver]: Analyzing ICFG freire1.c [2019-11-25 17:42:01,669 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 17:42:01,675 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-25 17:42:01,686 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-25 17:42:01,716 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 17:42:01,716 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 17:42:01,716 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 17:42:01,716 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 17:42:01,717 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 17:42:01,717 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 17:42:01,717 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 17:42:01,718 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 17:42:01,731 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-25 17:42:01,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-25 17:42:01,736 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 17:42:01,737 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-25 17:42:01,738 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 17:42:01,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 17:42:01,743 INFO L82 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2019-11-25 17:42:01,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 17:42:01,752 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [850233574] [2019-11-25 17:42:01,753 INFO L94 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 [2019-11-25 17:42:04,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 17:42:04,963 WARN L253 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-25 17:42:04,968 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 17:42:07,143 WARN L192 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 13 [2019-11-25 17:42:24,411 WARN L192 SmtUtils]: Spent 7.00 s on a formula simplification that was a NOOP. DAG size: 25 [2019-11-25 17:42:25,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 17:42:25,520 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 17:42:29,875 WARN L838 $PredicateComparison]: unable to prove that (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) is different from false [2019-11-25 17:42:31,934 WARN L860 $PredicateComparison]: unable to prove that (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) is different from true [2019-11-25 17:42:43,618 WARN L192 SmtUtils]: Spent 1.20 s on a formula simplification that was a NOOP. DAG size: 17 [2019-11-25 17:42:43,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 17:42:43,621 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [850233574] [2019-11-25 17:42:43,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 17:42:43,622 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2019-11-25 17:42:43,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221862582] [2019-11-25 17:42:43,627 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-25 17:42:43,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 17:42:43,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 17:42:43,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=25, Unknown=7, NotChecked=10, Total=56 [2019-11-25 17:42:43,641 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 8 states. [2019-11-25 17:42:45,782 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~a~0_8 (_ FloatingPoint 11 53))) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode .cse0 v_ULTIMATE.start_main_~a~0_8) .cse0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~a~0_8 ((_ to_fp 11 53) c_currentRoundingMode 2.0))))) (_ bv0 32))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2019-11-25 17:42:48,217 WARN L860 $PredicateComparison]: unable to prove that (and (= (_ bv0 32) c_ULTIMATE.start_main_~r~0) (= c_ULTIMATE.start_main_~x~0 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2019-11-25 17:42:51,047 WARN L192 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 27 DAG size of output: 5 [2019-11-25 17:43:13,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 17:43:13,540 INFO L93 Difference]: Finished difference Result 32 states and 47 transitions. [2019-11-25 17:43:13,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 17:43:13,543 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 5 [2019-11-25 17:43:13,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 17:43:13,551 INFO L225 Difference]: With dead ends: 32 [2019-11-25 17:43:13,552 INFO L226 Difference]: Without dead ends: 14 [2019-11-25 17:43:13,555 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 36.9s TimeCoverageRelationStatistics Valid=22, Invalid=37, Unknown=9, NotChecked=42, Total=110 [2019-11-25 17:43:13,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-11-25 17:43:13,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 9. [2019-11-25 17:43:13,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-25 17:43:13,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-11-25 17:43:13,592 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2019-11-25 17:43:13,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 17:43:13,592 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-11-25 17:43:13,592 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-25 17:43:13,592 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-11-25 17:43:13,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-25 17:43:13,593 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 17:43:13,593 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 17:43:13,806 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-25 17:43:13,807 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 17:43:13,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 17:43:13,808 INFO L82 PathProgramCache]: Analyzing trace with hash 300765331, now seen corresponding path program 1 times [2019-11-25 17:43:13,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 17:43:13,809 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [153523764] [2019-11-25 17:43:13,810 INFO L94 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 [2019-11-25 17:43:14,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 17:43:14,214 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-25 17:43:14,216 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 17:43:16,281 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))))) (or (and (not .cse0) (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) .cse0))) is different from false [2019-11-25 17:43:18,360 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))))) (or (and (not .cse0) (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) .cse0))) is different from true [2019-11-25 17:43:18,362 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 17:43:20,432 WARN L838 $PredicateComparison]: unable to prove that (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) is different from false [2019-11-25 17:43:22,489 WARN L860 $PredicateComparison]: unable to prove that (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) is different from true [2019-11-25 17:43:22,496 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 17:43:28,685 WARN L838 $PredicateComparison]: unable to prove that (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (exists ((ULTIMATE.start_main_~a~0 (_ FloatingPoint 11 53)) (ULTIMATE.start_main_~r~0 (_ BitVec 32)) (ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53)) (currentRoundingMode RoundingMode)) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add currentRoundingMode (fp.sub currentRoundingMode (fp.sub currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (bvmul ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~r~0)) ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) currentRoundingMode ULTIMATE.start_main_~r~0)) (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)) ULTIMATE.start_main_~x~0)))))) is different from false [2019-11-25 17:43:28,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 17:43:28,692 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 17:43:30,773 WARN L838 $PredicateComparison]: unable to prove that (or (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) is different from false [2019-11-25 17:43:32,835 WARN L860 $PredicateComparison]: unable to prove that (or (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) is different from true [2019-11-25 17:43:33,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 17:43:33,040 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [153523764] [2019-11-25 17:43:33,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 17:43:33,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-25 17:43:33,040 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714379594] [2019-11-25 17:43:33,042 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 17:43:33,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 17:43:33,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 17:43:33,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=4, Unknown=7, NotChecked=20, Total=42 [2019-11-25 17:43:33,043 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 7 states. [2019-11-25 17:43:37,310 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0))))) (.cse1 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (and (or (and (not .cse0) .cse1) (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) .cse0)) (or .cse0 .cse1))) is different from false [2019-11-25 17:43:39,372 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0))))) (.cse1 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (and (or (and (not .cse0) .cse1) (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) .cse0)) (or .cse0 .cse1))) is different from true [2019-11-25 17:43:41,434 WARN L838 $PredicateComparison]: unable to prove that (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (exists ((ULTIMATE.start_main_~a~0 (_ FloatingPoint 11 53)) (ULTIMATE.start_main_~r~0 (_ BitVec 32)) (ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53)) (currentRoundingMode RoundingMode)) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add currentRoundingMode (fp.sub currentRoundingMode (fp.sub currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (bvmul ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~r~0)) ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) currentRoundingMode ULTIMATE.start_main_~r~0)) (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)) ULTIMATE.start_main_~x~0))))) (not (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) is different from false [2019-11-25 17:43:41,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 17:43:41,439 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-11-25 17:43:41,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 17:43:41,439 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2019-11-25 17:43:41,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 17:43:41,439 INFO L225 Difference]: With dead ends: 9 [2019-11-25 17:43:41,440 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 17:43:41,441 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.7s TimeCoverageRelationStatistics Valid=15, Invalid=5, Unknown=10, NotChecked=42, Total=72 [2019-11-25 17:43:41,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 17:43:41,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 17:43:41,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 17:43:41,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 17:43:41,442 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-11-25 17:43:41,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 17:43:41,442 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 17:43:41,442 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 17:43:41,442 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 17:43:41,443 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 17:43:41,644 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-25 17:43:41,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-25 17:44:10,220 WARN L192 SmtUtils]: Spent 28.53 s on a formula simplification. DAG size of input: 25 DAG size of output: 21 [2019-11-25 17:44:51,549 WARN L192 SmtUtils]: Spent 41.32 s on a formula simplification. DAG size of input: 32 DAG size of output: 29 [2019-11-25 17:44:51,555 INFO L474 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-25 17:44:51,556 INFO L474 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2019-11-25 17:44:51,556 INFO L474 ceAbstractionStarter]: For program point L13(lines 13 14) no Hoare annotation was computed. [2019-11-25 17:44:51,557 INFO L474 ceAbstractionStarter]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2019-11-25 17:44:51,557 INFO L470 ceAbstractionStarter]: At program point L36(lines 19 37) the Hoare annotation is: (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) [2019-11-25 17:44:51,557 INFO L474 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-25 17:44:51,557 INFO L474 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-25 17:44:51,558 INFO L474 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-25 17:44:51,558 INFO L474 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2019-11-25 17:44:51,559 INFO L470 ceAbstractionStarter]: At program point L26-2(lines 26 33) the Hoare annotation is: (or (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (and (= (_ bv0 32) ULTIMATE.start_main_~r~0) (= ULTIMATE.start_main_~x~0 (fp.div currentRoundingMode ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) currentRoundingMode 2.0))) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add currentRoundingMode (fp.sub currentRoundingMode (fp.sub currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (bvmul ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~r~0)) ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) currentRoundingMode ULTIMATE.start_main_~r~0)) (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)) ULTIMATE.start_main_~x~0)))) (= currentRoundingMode roundNearestTiesToEven))) [2019-11-25 17:44:51,559 INFO L474 ceAbstractionStarter]: For program point L26-3(lines 26 33) no Hoare annotation was computed. [2019-11-25 17:44:51,559 INFO L474 ceAbstractionStarter]: For program point L12(lines 12 15) no Hoare annotation was computed. [2019-11-25 17:44:51,559 INFO L470 ceAbstractionStarter]: At program point L12-2(lines 29 30) the Hoare annotation is: (and (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add currentRoundingMode (fp.sub currentRoundingMode (fp.sub currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (bvmul ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~r~0)) ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) currentRoundingMode ULTIMATE.start_main_~r~0)) (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)) ULTIMATE.start_main_~x~0))))) [2019-11-25 17:44:51,559 INFO L474 ceAbstractionStarter]: For program point L12-3(lines 12 15) no Hoare annotation was computed. [2019-11-25 17:44:51,560 INFO L470 ceAbstractionStarter]: At program point L12-5(lines 11 17) the Hoare annotation is: (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) [2019-11-25 17:44:51,569 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-25 17:44:51,572 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,573 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,573 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,573 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,574 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,574 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,574 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,576 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-25 17:44:51,577 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,577 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,578 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,578 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,578 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,578 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,579 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,581 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-25 17:44:51,581 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 17:44:51,582 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,582 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,582 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,582 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,583 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,583 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,583 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,584 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,584 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,584 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,585 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-25 17:44:51,586 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 17:44:51,586 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,587 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,587 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,587 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,587 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,588 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,588 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,588 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,589 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,589 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:44:51 BoogieIcfgContainer [2019-11-25 17:44:51,592 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 17:44:51,592 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 17:44:51,593 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 17:44:51,593 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 17:44:51,594 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:42:01" (3/4) ... [2019-11-25 17:44:51,598 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 17:44:51,609 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-25 17:44:51,609 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-25 17:44:51,610 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-25 17:44:51,659 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-25 17:44:51,659 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 17:44:51,661 INFO L168 Benchmark]: Toolchain (without parser) took 175551.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 960.3 MB in the beginning and 1.0 GB in the end (delta: -82.0 MB). Peak memory consumption was 62.7 MB. Max. memory is 11.5 GB. [2019-11-25 17:44:51,662 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 17:44:51,662 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.73 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-25 17:44:51,663 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -191.6 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2019-11-25 17:44:51,664 INFO L168 Benchmark]: Boogie Preprocessor took 30.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-25 17:44:51,665 INFO L168 Benchmark]: RCFGBuilder took 5181.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2019-11-25 17:44:51,665 INFO L168 Benchmark]: TraceAbstraction took 169935.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 78.9 MB). Peak memory consumption was 78.9 MB. Max. memory is 11.5 GB. [2019-11-25 17:44:51,666 INFO L168 Benchmark]: Witness Printer took 66.81 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 17:44:51,669 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 241.73 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 88.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -191.6 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 5181.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 169935.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 78.9 MB). Peak memory consumption was 78.9 MB. Max. memory is 11.5 GB. * Witness Printer took 66.81 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 14]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant [2019-11-25 17:44:51,680 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-25 17:44:51,681 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,681 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,681 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,682 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,682 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,682 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,682 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,683 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-25 17:44:51,683 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,683 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,684 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,684 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,684 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,684 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,685 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: !(cond == 0bv32) && 0bv32 == ~convertDOUBLEToINT(~roundTowardZero, ~fp.add~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.sub~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.sub~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~bvmul32(r, r)), a), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, r)), ~fp.mul~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32), x))) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: !(cond == 0bv32) - InvariantResult [Line: 26]: Loop Invariant [2019-11-25 17:44:51,685 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-25 17:44:51,686 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 17:44:51,686 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,686 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,687 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,687 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,687 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,687 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,688 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,688 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,688 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,688 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,689 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-25 17:44:51,689 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 17:44:51,690 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,690 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,690 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,690 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,690 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,691 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,691 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,691 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,691 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:44:51,692 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: !(cond == 0bv32) || (((0bv32 == r && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, a, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2.0))) && 0bv32 == ~convertDOUBLEToINT(~roundTowardZero, ~fp.add~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.sub~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.sub~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~bvmul32(r, r)), a), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, r)), ~fp.mul~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32), x)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: !(cond == 0bv32) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 2 error locations. Result: SAFE, OverallTime: 169.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 38.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 69.9s, HoareTripleCheckerStatistics: 15 SDtfs, 11 SDslu, 27 SDs, 0 SdLazy, 12 SolverSat, 2 SolverUnsat, 11 SolverUnknown, 0 SolverNotchecked, 24.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 57.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 83 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 11 FormulaSimplificationTreeSizeReductionInter, 69.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.4s SatisfiabilityAnalysisTime, 57.5s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 3 QuantifiedInterpolants, 2103 SizeOfPredicates, 18 NumberOfNonLiveVariables, 24 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...