./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bb223ac5dd337697f7c4caeca580bc7e9e7345b8 ................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bb223ac5dd337697f7c4caeca580bc7e9e7345b8 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 00:35:17,521 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:35:17,523 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:35:17,549 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:35:17,549 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:35:17,550 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:35:17,552 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:35:17,554 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:35:17,555 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:35:17,556 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:35:17,558 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:35:17,559 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:35:17,559 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:35:17,560 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:35:17,561 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:35:17,571 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:35:17,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:35:17,574 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:35:17,575 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:35:17,577 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:35:17,579 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:35:17,580 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:35:17,582 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:35:17,582 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:35:17,585 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:35:17,585 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:35:17,586 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:35:17,587 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:35:17,587 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:35:17,588 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:35:17,589 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:35:17,589 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:35:17,590 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:35:17,591 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:35:17,592 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:35:17,592 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:35:17,593 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:35:17,593 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:35:17,594 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:35:17,595 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:35:17,595 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:35:17,596 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 00:35:17,633 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:35:17,634 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:35:17,635 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:35:17,636 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:35:17,637 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:35:17,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:35:17,637 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:35:17,637 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 00:35:17,638 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:35:17,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:35:17,639 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:35:17,639 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:35:17,639 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:35:17,640 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:35:17,640 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:35:17,640 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:35:17,641 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:35:17,641 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:35:17,641 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:35:17,641 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:35:17,642 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:35:17,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:35:17,642 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:35:17,642 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:35:17,643 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:35:17,643 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 00:35:17,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 00:35:17,644 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:35:17,644 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:35:17,644 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb223ac5dd337697f7c4caeca580bc7e9e7345b8 [2020-10-20 00:35:17,846 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:35:17,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:35:17,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:35:17,873 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:35:17,874 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:35:17,875 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c [2020-10-20 00:35:17,944 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c176654de/6fa068464e464790ae1e6bc6a217d049/FLAG82ae15949 [2020-10-20 00:35:18,471 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:35:18,472 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0620b.c [2020-10-20 00:35:18,480 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c176654de/6fa068464e464790ae1e6bc6a217d049/FLAG82ae15949 [2020-10-20 00:35:18,846 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c176654de/6fa068464e464790ae1e6bc6a217d049 [2020-10-20 00:35:18,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:35:18,858 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:35:18,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:35:18,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:35:18,865 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:35:18,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:35:18" (1/1) ... [2020-10-20 00:35:18,870 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a6b39ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:35:18, skipping insertion in model container [2020-10-20 00:35:18,871 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:35:18" (1/1) ... [2020-10-20 00:35:18,880 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:35:18,913 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:35:19,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:35:19,181 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:35:19,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:35:19,247 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:35:19,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:35:19 WrapperNode [2020-10-20 00:35:19,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:35:19,249 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:35:19,250 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:35:19,250 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:35:19,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:35:19" (1/1) ... [2020-10-20 00:35:19,272 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:35:19" (1/1) ... [2020-10-20 00:35:19,306 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:35:19,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:35:19,307 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:35:19,307 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:35:19,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:35:19" (1/1) ... [2020-10-20 00:35:19,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:35:19" (1/1) ... [2020-10-20 00:35:19,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:35:19" (1/1) ... [2020-10-20 00:35:19,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:35:19" (1/1) ... [2020-10-20 00:35:19,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:35:19" (1/1) ... [2020-10-20 00:35:19,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:35:19" (1/1) ... [2020-10-20 00:35:19,363 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:35:19" (1/1) ... [2020-10-20 00:35:19,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:35:19,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:35:19,368 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:35:19,368 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:35:19,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:35:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:35:19,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 00:35:19,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:35:19,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-20 00:35:19,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 00:35:19,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-20 00:35:19,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:35:19,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:35:19,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 00:35:19,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-20 00:35:19,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 00:35:19,961 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:35:19,962 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-20 00:35:19,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:35:19 BoogieIcfgContainer [2020-10-20 00:35:19,964 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:35:19,966 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:35:19,966 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:35:19,969 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:35:19,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:35:18" (1/3) ... [2020-10-20 00:35:19,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d330972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:35:19, skipping insertion in model container [2020-10-20 00:35:19,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:35:19" (2/3) ... [2020-10-20 00:35:19,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d330972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:35:19, skipping insertion in model container [2020-10-20 00:35:19,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:35:19" (3/3) ... [2020-10-20 00:35:19,974 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620b.c [2020-10-20 00:35:19,987 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:35:19,996 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:35:20,007 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:35:20,040 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:35:20,041 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:35:20,041 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:35:20,041 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:35:20,042 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:35:20,042 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:35:20,042 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:35:20,043 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:35:20,057 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-10-20 00:35:20,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 00:35:20,064 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:35:20,065 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:35:20,065 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:35:20,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:35:20,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1030429181, now seen corresponding path program 1 times [2020-10-20 00:35:20,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:35:20,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706247924] [2020-10-20 00:35:20,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:35:20,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:35:20,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:35:20,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706247924] [2020-10-20 00:35:20,272 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:35:20,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 00:35:20,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410505668] [2020-10-20 00:35:20,280 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:35:20,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:35:20,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:35:20,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:35:20,295 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2020-10-20 00:35:20,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:35:20,316 INFO L93 Difference]: Finished difference Result 73 states and 113 transitions. [2020-10-20 00:35:20,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:35:20,318 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-20 00:35:20,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:35:20,330 INFO L225 Difference]: With dead ends: 73 [2020-10-20 00:35:20,331 INFO L226 Difference]: Without dead ends: 34 [2020-10-20 00:35:20,335 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:35:20,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-10-20 00:35:20,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-10-20 00:35:20,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-20 00:35:20,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2020-10-20 00:35:20,379 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 10 [2020-10-20 00:35:20,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:35:20,379 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2020-10-20 00:35:20,380 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:35:20,380 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2020-10-20 00:35:20,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 00:35:20,381 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:35:20,381 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:35:20,382 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 00:35:20,382 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:35:20,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:35:20,383 INFO L82 PathProgramCache]: Analyzing trace with hash -1304878016, now seen corresponding path program 1 times [2020-10-20 00:35:20,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:35:20,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015147446] [2020-10-20 00:35:20,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:35:20,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:35:20,523 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:35:20,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:35:20,611 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:35:20,645 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 00:35:20,646 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 00:35:20,648 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 00:35:20,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:35:20 BoogieIcfgContainer [2020-10-20 00:35:20,696 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:35:20,697 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:35:20,697 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:35:20,697 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:35:20,698 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:35:19" (3/4) ... [2020-10-20 00:35:20,702 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 00:35:20,703 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:35:20,706 INFO L168 Benchmark]: Toolchain (without parser) took 1852.71 ms. Allocated memory was 40.9 MB in the beginning and 46.7 MB in the end (delta: 5.8 MB). Free memory was 18.4 MB in the beginning and 13.1 MB in the end (delta: 5.3 MB). Peak memory consumption was 11.0 MB. Max. memory is 14.3 GB. [2020-10-20 00:35:20,707 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 30.9 MB. Free memory was 17.0 MB in the beginning and 17.0 MB in the end (delta: 35.8 kB). Peak memory consumption was 35.8 kB. Max. memory is 14.3 GB. [2020-10-20 00:35:20,708 INFO L168 Benchmark]: CACSL2BoogieTranslator took 387.95 ms. Allocated memory was 40.9 MB in the beginning and 41.9 MB in the end (delta: 1.0 MB). Free memory was 17.5 MB in the beginning and 13.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 8.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:35:20,709 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.17 ms. Allocated memory is still 41.9 MB. Free memory was 13.6 MB in the beginning and 11.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:35:20,710 INFO L168 Benchmark]: Boogie Preprocessor took 60.49 ms. Allocated memory was 41.9 MB in the beginning and 43.5 MB in the end (delta: 1.6 MB). Free memory was 11.1 MB in the beginning and 25.0 MB in the end (delta: -13.9 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. [2020-10-20 00:35:20,711 INFO L168 Benchmark]: RCFGBuilder took 596.73 ms. Allocated memory was 43.5 MB in the beginning and 44.0 MB in the end (delta: 524.3 kB). Free memory was 25.0 MB in the beginning and 13.7 MB in the end (delta: 11.2 MB). Peak memory consumption was 15.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:35:20,712 INFO L168 Benchmark]: TraceAbstraction took 730.70 ms. Allocated memory was 44.0 MB in the beginning and 46.7 MB in the end (delta: 2.6 MB). Free memory was 13.3 MB in the beginning and 13.5 MB in the end (delta: -228.9 kB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. [2020-10-20 00:35:20,713 INFO L168 Benchmark]: Witness Printer took 6.12 ms. Allocated memory is still 46.7 MB. Free memory was 13.5 MB in the beginning and 13.1 MB in the end (delta: 332.1 kB). Peak memory consumption was 332.1 kB. Max. memory is 14.3 GB. [2020-10-20 00:35:20,720 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 30.9 MB. Free memory was 17.0 MB in the beginning and 17.0 MB in the end (delta: 35.8 kB). Peak memory consumption was 35.8 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 387.95 ms. Allocated memory was 40.9 MB in the beginning and 41.9 MB in the end (delta: 1.0 MB). Free memory was 17.5 MB in the beginning and 13.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 8.6 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 57.17 ms. Allocated memory is still 41.9 MB. Free memory was 13.6 MB in the beginning and 11.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 60.49 ms. Allocated memory was 41.9 MB in the beginning and 43.5 MB in the end (delta: 1.6 MB). Free memory was 11.1 MB in the beginning and 25.0 MB in the end (delta: -13.9 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 596.73 ms. Allocated memory was 43.5 MB in the beginning and 44.0 MB in the end (delta: 524.3 kB). Free memory was 25.0 MB in the beginning and 13.7 MB in the end (delta: 11.2 MB). Peak memory consumption was 15.3 MB. Max. memory is 14.3 GB. * TraceAbstraction took 730.70 ms. Allocated memory was 44.0 MB in the beginning and 46.7 MB in the end (delta: 2.6 MB). Free memory was 13.3 MB in the beginning and 13.5 MB in the end (delta: -228.9 kB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. * Witness Printer took 6.12 ms. Allocated memory is still 46.7 MB. Free memory was 13.5 MB in the beginning and 13.1 MB in the end (delta: 332.1 kB). Peak memory consumption was 332.1 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 143, overapproximation of someUnaryDOUBLEoperation at line 46, overapproximation of bitwiseAnd at line 64, overapproximation of someUnaryFLOAToperation at line 139, overapproximation of someBinaryArithmeticFLOAToperation at line 67. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L31-L36] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L38-L43] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L45-L49] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L51-L53] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L139] float x = -0.0f; [L56] float w, s1, s2, z; [L57] __int32_t ix, hx, id; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L60] ieee_float_shape_type gf_u; [L61] gf_u.value = (x) [L62] EXPR gf_u.word [L62] (hx) = gf_u.word [L64] ix = hx & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L65] COND TRUE ix >= 0x50800000 VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L66] COND TRUE ((ix) > 0x7f800000L) [L67] return x + x; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L140] float res = atan_float(x); [L143] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L143] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L3] __assert_fail("0", "float_req_bl_0620b.c", 3, "reach_error") VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 48 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 00:35:22,936 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-10-20 00:35:23,007 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:35:23,007 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:35:23,008 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:35:23,009 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:35:23,010 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:35:23,010 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:35:23,011 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:35:23,011 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:35:23,011 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:35:23,012 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:35:23,013 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:35:23,014 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-20 00:35:23,036 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:35:23,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:35:23,038 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:35:23,038 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:35:23,038 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:35:23,038 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:35:23,039 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:35:23,039 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:35:23,039 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:35:23,039 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:35:23,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:35:23,040 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:35:23,040 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 00:35:23,040 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 00:35:23,041 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:35:23,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:35:23,041 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:35:23,041 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:35:23,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:35:23,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:35:23,042 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:35:23,043 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:35:23,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:35:23,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:35:23,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:35:23,044 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:35:23,044 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 00:35:23,044 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 00:35:23,044 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:35:23,045 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:35:23,045 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 00:35:23,045 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb223ac5dd337697f7c4caeca580bc7e9e7345b8 [2020-10-20 00:35:23,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:35:23,293 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:35:23,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:35:23,300 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:35:23,301 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:35:23,302 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c [2020-10-20 00:35:23,364 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ceaacfc78/1894a2ed6ec1416f9b1c5b0e3efd7eb1/FLAGafbf455a6 [2020-10-20 00:35:23,847 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:35:23,848 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0620b.c [2020-10-20 00:35:23,855 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ceaacfc78/1894a2ed6ec1416f9b1c5b0e3efd7eb1/FLAGafbf455a6 [2020-10-20 00:35:24,200 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ceaacfc78/1894a2ed6ec1416f9b1c5b0e3efd7eb1 [2020-10-20 00:35:24,204 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:35:24,212 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:35:24,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:35:24,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:35:24,217 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:35:24,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:35:24" (1/1) ... [2020-10-20 00:35:24,221 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2619b07c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:35:24, skipping insertion in model container [2020-10-20 00:35:24,221 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:35:24" (1/1) ... [2020-10-20 00:35:24,229 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:35:24,253 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:35:24,551 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:35:24,571 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:35:24,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:35:24,694 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:35:24,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:35:24 WrapperNode [2020-10-20 00:35:24,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:35:24,695 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:35:24,695 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:35:24,696 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:35:24,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:35:24" (1/1) ... [2020-10-20 00:35:24,720 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:35:24" (1/1) ... [2020-10-20 00:35:24,756 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:35:24,756 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:35:24,757 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:35:24,757 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:35:24,768 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:35:24" (1/1) ... [2020-10-20 00:35:24,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:35:24" (1/1) ... [2020-10-20 00:35:24,774 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:35:24" (1/1) ... [2020-10-20 00:35:24,775 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:35:24" (1/1) ... [2020-10-20 00:35:24,792 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:35:24" (1/1) ... [2020-10-20 00:35:24,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:35:24" (1/1) ... [2020-10-20 00:35:24,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:35:24" (1/1) ... [2020-10-20 00:35:24,824 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:35:24,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:35:24,825 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:35:24,825 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:35:24,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:35:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:35:24,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2020-10-20 00:35:24,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-20 00:35:24,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:35:24,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-10-20 00:35:24,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-20 00:35:24,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:35:24,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:35:24,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-10-20 00:35:24,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-20 00:35:24,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 00:35:32,815 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:35:32,816 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-20 00:35:32,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:35:32 BoogieIcfgContainer [2020-10-20 00:35:32,826 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:35:32,827 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:35:32,828 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:35:32,832 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:35:32,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:35:24" (1/3) ... [2020-10-20 00:35:32,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4442d0ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:35:32, skipping insertion in model container [2020-10-20 00:35:32,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:35:24" (2/3) ... [2020-10-20 00:35:32,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4442d0ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:35:32, skipping insertion in model container [2020-10-20 00:35:32,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:35:32" (3/3) ... [2020-10-20 00:35:32,836 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620b.c [2020-10-20 00:35:32,848 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:35:32,855 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:35:32,866 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:35:32,889 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:35:32,889 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:35:32,889 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:35:32,890 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:35:32,890 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:35:32,890 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:35:32,890 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:35:32,890 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:35:32,905 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-10-20 00:35:32,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 00:35:32,911 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:35:32,912 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:35:32,913 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:35:32,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:35:32,917 INFO L82 PathProgramCache]: Analyzing trace with hash 1030429181, now seen corresponding path program 1 times [2020-10-20 00:35:32,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:35:32,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [739470155] [2020-10-20 00:35:32,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-20 00:35:33,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:35:33,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-20 00:35:33,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:35:33,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:35:33,912 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:35:33,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:35:33,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [739470155] [2020-10-20 00:35:33,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:35:33,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 00:35:33,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537522799] [2020-10-20 00:35:33,926 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:35:33,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:35:33,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:35:33,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:35:33,939 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2020-10-20 00:35:33,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:35:33,963 INFO L93 Difference]: Finished difference Result 73 states and 113 transitions. [2020-10-20 00:35:33,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:35:33,965 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-20 00:35:33,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:35:33,977 INFO L225 Difference]: With dead ends: 73 [2020-10-20 00:35:33,977 INFO L226 Difference]: Without dead ends: 34 [2020-10-20 00:35:33,981 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:35:34,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-10-20 00:35:34,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-10-20 00:35:34,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-20 00:35:34,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2020-10-20 00:35:34,025 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 10 [2020-10-20 00:35:34,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:35:34,025 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2020-10-20 00:35:34,025 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:35:34,026 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2020-10-20 00:35:34,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 00:35:34,027 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:35:34,027 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:35:34,241 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 00:35:34,242 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:35:34,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:35:34,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1304878016, now seen corresponding path program 1 times [2020-10-20 00:35:34,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:35:34,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [10374073] [2020-10-20 00:35:34,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-20 00:35:35,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:35:35,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 00:35:35,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:35:35,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:35:35,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:35:35,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:35:35,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [10374073] [2020-10-20 00:35:35,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:35:35,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-20 00:35:35,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108274503] [2020-10-20 00:35:35,343 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 00:35:35,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:35:35,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 00:35:35,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-20 00:35:35,346 INFO L87 Difference]: Start difference. First operand 34 states and 45 transitions. Second operand 8 states. [2020-10-20 00:35:39,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:35:39,779 INFO L93 Difference]: Finished difference Result 57 states and 70 transitions. [2020-10-20 00:35:39,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 00:35:39,780 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-10-20 00:35:39,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:35:39,781 INFO L225 Difference]: With dead ends: 57 [2020-10-20 00:35:39,781 INFO L226 Difference]: Without dead ends: 32 [2020-10-20 00:35:39,783 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-20 00:35:39,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-20 00:35:39,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2020-10-20 00:35:39,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-20 00:35:39,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2020-10-20 00:35:39,789 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 11 [2020-10-20 00:35:39,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:35:39,789 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2020-10-20 00:35:39,789 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 00:35:39,790 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2020-10-20 00:35:39,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 00:35:39,790 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:35:39,791 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:35:40,004 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-20 00:35:40,005 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:35:40,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:35:40,006 INFO L82 PathProgramCache]: Analyzing trace with hash -413875709, now seen corresponding path program 1 times [2020-10-20 00:35:40,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:35:40,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [574236110] [2020-10-20 00:35:40,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-20 00:35:40,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:35:40,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 00:35:40,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:35:40,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:35:40,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:35:41,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:35:41,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [574236110] [2020-10-20 00:35:41,024 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:35:41,024 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2020-10-20 00:35:41,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429617644] [2020-10-20 00:35:41,025 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 00:35:41,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:35:41,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 00:35:41,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-20 00:35:41,026 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 7 states. [2020-10-20 00:35:45,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:35:45,662 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2020-10-20 00:35:45,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 00:35:45,665 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-10-20 00:35:45,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:35:45,665 INFO L225 Difference]: With dead ends: 35 [2020-10-20 00:35:45,666 INFO L226 Difference]: Without dead ends: 32 [2020-10-20 00:35:45,666 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-20 00:35:45,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-20 00:35:45,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 25. [2020-10-20 00:35:45,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-10-20 00:35:45,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2020-10-20 00:35:45,677 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 13 [2020-10-20 00:35:45,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:35:45,678 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2020-10-20 00:35:45,679 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 00:35:45,679 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2020-10-20 00:35:45,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-20 00:35:45,680 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:35:45,680 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:35:45,895 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-20 00:35:45,895 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:35:45,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:35:45,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1848532469, now seen corresponding path program 1 times [2020-10-20 00:35:45,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:35:45,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [554493161] [2020-10-20 00:35:45,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-20 00:35:47,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:35:47,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 00:35:47,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:35:47,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:35:47,945 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:35:48,361 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-10-20 00:35:48,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:35:48,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [554493161] [2020-10-20 00:35:48,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:35:48,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-20 00:35:48,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207793586] [2020-10-20 00:35:48,480 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 00:35:48,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:35:48,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 00:35:48,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-20 00:35:48,482 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 6 states. [2020-10-20 00:35:48,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:35:48,661 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2020-10-20 00:35:48,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 00:35:48,668 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-10-20 00:35:48,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:35:48,670 INFO L225 Difference]: With dead ends: 32 [2020-10-20 00:35:48,670 INFO L226 Difference]: Without dead ends: 18 [2020-10-20 00:35:48,671 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-20 00:35:48,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-10-20 00:35:48,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-10-20 00:35:48,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-20 00:35:48,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2020-10-20 00:35:48,674 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2020-10-20 00:35:48,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:35:48,675 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2020-10-20 00:35:48,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 00:35:48,675 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2020-10-20 00:35:48,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 00:35:48,676 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:35:48,676 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:35:48,876 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-20 00:35:48,877 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:35:48,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:35:48,878 INFO L82 PathProgramCache]: Analyzing trace with hash 712330328, now seen corresponding path program 1 times [2020-10-20 00:35:48,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:35:48,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1638762982] [2020-10-20 00:35:48,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-10-20 00:35:49,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:35:49,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-20 00:35:49,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:35:49,831 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:35:49,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:35:49,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:35:50,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:35:50,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1638762982] [2020-10-20 00:35:50,128 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:35:50,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2020-10-20 00:35:50,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127195268] [2020-10-20 00:35:50,129 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-20 00:35:50,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:35:50,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-20 00:35:50,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-20 00:35:50,130 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 14 states. [2020-10-20 00:35:50,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:35:50,383 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2020-10-20 00:35:50,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 00:35:50,384 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 17 [2020-10-20 00:35:50,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:35:50,385 INFO L225 Difference]: With dead ends: 18 [2020-10-20 00:35:50,385 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 00:35:50,386 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-10-20 00:35:50,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 00:35:50,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 00:35:50,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 00:35:50,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 00:35:50,387 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-20 00:35:50,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:35:50,387 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 00:35:50,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-20 00:35:50,387 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 00:35:50,387 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 00:35:50,595 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-20 00:35:50,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 00:35:50,821 INFO L274 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-10-20 00:35:50,821 INFO L274 CegarLoopResult]: For program point L143-2(lines 143 146) no Hoare annotation was computed. [2020-10-20 00:35:50,821 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-20 00:35:50,821 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-20 00:35:50,822 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 00:35:50,822 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 00:35:50,822 INFO L270 CegarLoopResult]: At program point L28(lines 16 29) the Hoare annotation is: false [2020-10-20 00:35:50,822 INFO L274 CegarLoopResult]: For program point L111(lines 111 116) no Hoare annotation was computed. [2020-10-20 00:35:50,822 INFO L270 CegarLoopResult]: At program point L128(lines 119 129) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= ULTIMATE.start_atan_float_~x .cse0) (= |ULTIMATE.start_atan_float_#res| .cse0) (= (bvadd |ULTIMATE.start___signbit_float_#res| (_ bv4294967295 32)) (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_atan~0) (= ~huge_atan~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= .cse0 ULTIMATE.start___signbit_float_~x) (= .cse0 ULTIMATE.start_main_~res~0) (= .cse0 (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~1) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~1) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~1))) |ULTIMATE.start_main_#t~short36|)) [2020-10-20 00:35:50,822 INFO L274 CegarLoopResult]: For program point L122-1(lines 122 126) no Hoare annotation was computed. [2020-10-20 00:35:50,823 INFO L270 CegarLoopResult]: At program point L122-2(lines 122 126) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= ULTIMATE.start_atan_float_~x .cse0) (= |ULTIMATE.start_atan_float_#res| .cse0) (= currentRoundingMode roundNearestTiesToEven) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_atan~0) (= ~huge_atan~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= .cse0 ULTIMATE.start___signbit_float_~x) (= .cse0 ULTIMATE.start_main_~res~0) |ULTIMATE.start_main_#t~short36|)) [2020-10-20 00:35:50,823 INFO L274 CegarLoopResult]: For program point L23(lines 23 27) no Hoare annotation was computed. [2020-10-20 00:35:50,823 INFO L274 CegarLoopResult]: For program point L122-3(lines 122 126) no Hoare annotation was computed. [2020-10-20 00:35:50,823 INFO L274 CegarLoopResult]: For program point L23-1(lines 16 29) no Hoare annotation was computed. [2020-10-20 00:35:50,823 INFO L274 CegarLoopResult]: For program point L23-2(lines 23 27) no Hoare annotation was computed. [2020-10-20 00:35:50,823 INFO L274 CegarLoopResult]: For program point L81(lines 81 97) no Hoare annotation was computed. [2020-10-20 00:35:50,823 INFO L274 CegarLoopResult]: For program point L73(lines 73 98) no Hoare annotation was computed. [2020-10-20 00:35:50,824 INFO L274 CegarLoopResult]: For program point L65(lines 65 72) no Hoare annotation was computed. [2020-10-20 00:35:50,824 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 00:35:50,824 INFO L274 CegarLoopResult]: For program point L90(lines 90 96) no Hoare annotation was computed. [2020-10-20 00:35:50,824 INFO L274 CegarLoopResult]: For program point L90-2(lines 73 98) no Hoare annotation was computed. [2020-10-20 00:35:50,824 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 00:35:50,824 INFO L277 CegarLoopResult]: At program point L148(lines 131 149) the Hoare annotation is: true [2020-10-20 00:35:50,824 INFO L274 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-10-20 00:35:50,824 INFO L274 CegarLoopResult]: For program point L82(lines 82 88) no Hoare annotation was computed. [2020-10-20 00:35:50,825 INFO L274 CegarLoopResult]: For program point L115-2(line 115) no Hoare annotation was computed. [2020-10-20 00:35:50,825 INFO L270 CegarLoopResult]: At program point L115-3(lines 55 117) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= ULTIMATE.start_atan_float_~x .cse0) (= |ULTIMATE.start_atan_float_#res| .cse0) (= currentRoundingMode roundNearestTiesToEven) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_atan~0) (= ~huge_atan~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))))) [2020-10-20 00:35:50,825 INFO L274 CegarLoopResult]: For program point L74(lines 74 77) no Hoare annotation was computed. [2020-10-20 00:35:50,825 INFO L274 CegarLoopResult]: For program point L74-2(lines 74 77) no Hoare annotation was computed. [2020-10-20 00:35:50,825 INFO L274 CegarLoopResult]: For program point L66(lines 66 67) no Hoare annotation was computed. [2020-10-20 00:35:50,825 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 00:35:50,825 INFO L274 CegarLoopResult]: For program point L75(lines 75 76) no Hoare annotation was computed. [2020-10-20 00:35:50,826 INFO L274 CegarLoopResult]: For program point L59-1(lines 59 63) no Hoare annotation was computed. [2020-10-20 00:35:50,826 INFO L270 CegarLoopResult]: At program point L59-2(lines 59 63) the Hoare annotation is: (and (= ULTIMATE.start_atan_float_~x (fp.neg (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_atan~0) (= ~huge_atan~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)))) [2020-10-20 00:35:50,826 INFO L274 CegarLoopResult]: For program point L59-3(lines 59 63) no Hoare annotation was computed. [2020-10-20 00:35:50,826 INFO L274 CegarLoopResult]: For program point L18-1(lines 18 22) no Hoare annotation was computed. [2020-10-20 00:35:50,826 INFO L270 CegarLoopResult]: At program point L18-2(lines 18 22) the Hoare annotation is: false [2020-10-20 00:35:50,826 INFO L274 CegarLoopResult]: For program point L68(lines 68 71) no Hoare annotation was computed. [2020-10-20 00:35:50,836 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:35:50,839 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,839 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,839 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,839 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,840 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,851 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:35:50,852 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,852 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,853 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,853 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,853 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,855 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:35:50,855 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,856 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,856 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,856 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,856 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,857 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:35:50,858 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,858 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,858 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,858 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,859 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,860 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:35:50,860 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,860 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,861 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,861 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,861 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,862 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:35:50,862 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,862 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,863 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,863 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,863 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,864 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:35:50,864 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,864 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,864 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,865 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,865 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,865 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:35:50,866 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,866 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,866 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,866 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,866 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:35:50 BoogieIcfgContainer [2020-10-20 00:35:50,869 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:35:50,869 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:35:50,869 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:35:50,869 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:35:50,870 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:35:32" (3/4) ... [2020-10-20 00:35:50,874 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 00:35:50,890 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-10-20 00:35:50,890 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-20 00:35:50,891 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:35:50,891 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:35:50,924 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) [2020-10-20 00:35:50,926 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && aux-res == -0.0f && __signbit_float(res) == 1-aux [2020-10-20 00:35:50,926 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && aux-res == -0.0f && __signbit_float(res) == 1-aux [2020-10-20 00:35:50,976 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 00:35:50,976 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:35:50,978 INFO L168 Benchmark]: Toolchain (without parser) took 26771.75 ms. Allocated memory was 35.7 MB in the beginning and 53.5 MB in the end (delta: 17.8 MB). Free memory was 15.9 MB in the beginning and 22.7 MB in the end (delta: -6.7 MB). Peak memory consumption was 11.1 MB. Max. memory is 14.3 GB. [2020-10-20 00:35:50,978 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 34.1 MB. Free memory was 10.2 MB in the beginning and 10.2 MB in the end (delta: 45.7 kB). Peak memory consumption was 45.7 kB. Max. memory is 14.3 GB. [2020-10-20 00:35:50,979 INFO L168 Benchmark]: CACSL2BoogieTranslator took 481.78 ms. Allocated memory was 35.7 MB in the beginning and 44.0 MB in the end (delta: 8.4 MB). Free memory was 15.1 MB in the beginning and 20.2 MB in the end (delta: -5.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:35:50,979 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.94 ms. Allocated memory is still 44.0 MB. Free memory was 20.2 MB in the beginning and 17.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:35:50,980 INFO L168 Benchmark]: Boogie Preprocessor took 67.79 ms. Allocated memory was 44.0 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Free memory was 17.6 MB in the beginning and 27.4 MB in the end (delta: -9.8 MB). Peak memory consumption was 5.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:35:50,980 INFO L168 Benchmark]: RCFGBuilder took 8001.80 ms. Allocated memory is still 46.1 MB. Free memory was 27.4 MB in the beginning and 27.9 MB in the end (delta: -500.9 kB). Peak memory consumption was 16.5 MB. Max. memory is 14.3 GB. [2020-10-20 00:35:50,981 INFO L168 Benchmark]: TraceAbstraction took 18041.28 ms. Allocated memory was 46.1 MB in the beginning and 53.5 MB in the end (delta: 7.3 MB). Free memory was 27.3 MB in the beginning and 29.3 MB in the end (delta: -2.0 MB). Peak memory consumption was 24.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:35:50,983 INFO L168 Benchmark]: Witness Printer took 106.85 ms. Allocated memory is still 53.5 MB. Free memory was 29.3 MB in the beginning and 22.7 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:35:50,991 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 34.1 MB. Free memory was 10.2 MB in the beginning and 10.2 MB in the end (delta: 45.7 kB). Peak memory consumption was 45.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 481.78 ms. Allocated memory was 35.7 MB in the beginning and 44.0 MB in the end (delta: 8.4 MB). Free memory was 15.1 MB in the beginning and 20.2 MB in the end (delta: -5.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 60.94 ms. Allocated memory is still 44.0 MB. Free memory was 20.2 MB in the beginning and 17.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 67.79 ms. Allocated memory was 44.0 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Free memory was 17.6 MB in the beginning and 27.4 MB in the end (delta: -9.8 MB). Peak memory consumption was 5.7 MB. Max. memory is 14.3 GB. * RCFGBuilder took 8001.80 ms. Allocated memory is still 46.1 MB. Free memory was 27.4 MB in the beginning and 27.9 MB in the end (delta: -500.9 kB). Peak memory consumption was 16.5 MB. Max. memory is 14.3 GB. * TraceAbstraction took 18041.28 ms. Allocated memory was 46.1 MB in the beginning and 53.5 MB in the end (delta: 7.3 MB). Free memory was 27.3 MB in the beginning and 29.3 MB in the end (delta: -2.0 MB). Peak memory consumption was 24.2 MB. Max. memory is 14.3 GB. * Witness Printer took 106.85 ms. Allocated memory is still 53.5 MB. Free memory was 29.3 MB in the beginning and 22.7 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - 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: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 55]: Loop Invariant [2020-10-20 00:35:50,998 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:35:50,998 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,999 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,999 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,999 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:50,999 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:51,000 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:35:51,000 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:51,000 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:51,000 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:51,000 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:51,001 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) - InvariantResult [Line: 119]: Loop Invariant [2020-10-20 00:35:51,001 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:35:51,001 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:51,002 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:51,002 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:51,002 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:51,002 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:51,003 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:35:51,003 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:51,003 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:51,003 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:51,004 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:51,004 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && aux-res == -0.0f && __signbit_float(res) == 1-aux - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 122]: Loop Invariant [2020-10-20 00:35:51,005 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:35:51,005 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:51,005 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:51,005 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:51,005 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:51,005 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:51,006 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:35:51,006 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:51,006 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:51,007 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:51,007 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:51,007 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && aux-res == -0.0f && __signbit_float(res) == 1-aux - InvariantResult [Line: 59]: Loop Invariant [2020-10-20 00:35:51,008 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:35:51,008 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:51,008 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:51,008 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:51,008 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:51,009 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:51,009 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:35:51,009 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:51,009 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:51,010 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:51,010 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:35:51,010 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 9.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 111 SDtfs, 183 SDslu, 183 SDs, 0 SdLazy, 80 SolverSat, 13 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 8.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 95 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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, 5 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 12 NumberOfFragments, 136 HoareAnnotationTreeSize, 7 FomulaSimplifications, 24 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 4.9s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 124 ConstructedInterpolants, 12 QuantifiedInterpolants, 9709 SizeOfPredicates, 28 NumberOfNonLiveVariables, 523 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...