./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ee8e70e7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/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 80f4c7cd3af7d4ef31d93e6369e6026704f12fbd .................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/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 80f4c7cd3af7d4ef31d93e6369e6026704f12fbd ................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-ee8e70e [2020-10-24 14:13:53,456 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 14:13:53,459 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 14:13:53,496 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 14:13:53,497 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 14:13:53,498 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 14:13:53,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 14:13:53,503 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 14:13:53,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 14:13:53,507 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 14:13:53,508 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 14:13:53,510 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 14:13:53,511 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 14:13:53,512 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 14:13:53,514 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 14:13:53,515 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 14:13:53,516 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 14:13:53,518 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 14:13:53,520 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 14:13:53,523 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 14:13:53,525 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 14:13:53,527 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 14:13:53,528 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 14:13:53,532 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 14:13:53,539 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 14:13:53,541 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 14:13:53,541 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 14:13:53,544 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 14:13:53,545 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 14:13:53,546 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 14:13:53,548 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 14:13:53,549 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 14:13:53,550 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 14:13:53,551 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 14:13:53,552 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 14:13:53,553 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 14:13:53,562 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 14:13:53,562 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 14:13:53,562 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 14:13:53,563 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 14:13:53,566 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 14:13:53,567 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 14:13:53,621 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 14:13:53,621 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 14:13:53,626 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 14:13:53,626 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 14:13:53,626 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 14:13:53,627 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 14:13:53,627 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 14:13:53,628 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 14:13:53,628 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 14:13:53,628 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 14:13:53,628 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 14:13:53,629 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 14:13:53,629 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 14:13:53,629 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 14:13:53,629 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 14:13:53,629 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 14:13:53,630 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 14:13:53,630 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 14:13:53,631 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 14:13:53,631 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 14:13:53,631 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 14:13:53,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:13:53,632 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 14:13:53,632 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 14:13:53,632 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 14:13:53,632 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 14:13:53,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 14:13:53,633 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 14:13:53,634 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 14:13:53,634 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80f4c7cd3af7d4ef31d93e6369e6026704f12fbd [2020-10-24 14:13:54,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 14:13:54,113 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 14:13:54,116 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 14:13:54,118 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 14:13:54,120 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 14:13:54,121 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2020-10-24 14:13:54,216 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d98260e9f/4e4798559acb442294178386d012cbdb/FLAG91898d114 [2020-10-24 14:13:54,973 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 14:13:54,974 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2020-10-24 14:13:54,982 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d98260e9f/4e4798559acb442294178386d012cbdb/FLAG91898d114 [2020-10-24 14:13:55,320 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d98260e9f/4e4798559acb442294178386d012cbdb [2020-10-24 14:13:55,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 14:13:55,331 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 14:13:55,336 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 14:13:55,336 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 14:13:55,343 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 14:13:55,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:13:55" (1/1) ... [2020-10-24 14:13:55,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16d67780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:13:55, skipping insertion in model container [2020-10-24 14:13:55,351 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:13:55" (1/1) ... [2020-10-24 14:13:55,360 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 14:13:55,382 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 14:13:55,583 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:13:55,594 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 14:13:55,608 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:13:55,624 INFO L217 MainTranslator]: Completed translation [2020-10-24 14:13:55,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:13:55 WrapperNode [2020-10-24 14:13:55,625 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 14:13:55,626 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 14:13:55,626 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 14:13:55,626 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 14:13:55,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:13:55" (1/1) ... [2020-10-24 14:13:55,643 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:13:55" (1/1) ... [2020-10-24 14:13:55,661 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 14:13:55,662 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 14:13:55,662 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 14:13:55,663 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 14:13:55,672 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:13:55" (1/1) ... [2020-10-24 14:13:55,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:13:55" (1/1) ... [2020-10-24 14:13:55,674 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:13:55" (1/1) ... [2020-10-24 14:13:55,674 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:13:55" (1/1) ... [2020-10-24 14:13:55,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:13:55" (1/1) ... [2020-10-24 14:13:55,680 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:13:55" (1/1) ... [2020-10-24 14:13:55,681 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:13:55" (1/1) ... [2020-10-24 14:13:55,683 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 14:13:55,684 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 14:13:55,684 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 14:13:55,684 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 14:13:55,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:13:55" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-24 14:13:55,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 14:13:55,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 14:13:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 14:13:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 14:13:55,967 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 14:13:55,968 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-24 14:13:55,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:13:55 BoogieIcfgContainer [2020-10-24 14:13:55,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 14:13:55,972 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 14:13:55,972 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 14:13:55,976 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 14:13:55,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:13:55" (1/3) ... [2020-10-24 14:13:55,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e25857d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:13:55, skipping insertion in model container [2020-10-24 14:13:55,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:13:55" (2/3) ... [2020-10-24 14:13:55,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e25857d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:13:55, skipping insertion in model container [2020-10-24 14:13:55,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:13:55" (3/3) ... [2020-10-24 14:13:55,980 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp3.c [2020-10-24 14:13:55,993 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 14:13:55,999 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 14:13:56,016 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 14:13:56,051 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 14:13:56,051 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 14:13:56,051 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 14:13:56,051 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 14:13:56,052 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 14:13:56,052 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 14:13:56,052 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 14:13:56,052 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 14:13:56,073 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-10-24 14:13:56,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-24 14:13:56,089 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:13:56,093 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-24 14:13:56,093 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:13:56,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:13:56,112 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-10-24 14:13:56,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 14:13:56,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977206877] [2020-10-24 14:13:56,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 14:13:56,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 14:13:56,288 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 14:13:56,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 14:13:56,307 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 14:13:56,347 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 14:13:56,348 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 14:13:56,349 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 14:13:56,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:13:56 BoogieIcfgContainer [2020-10-24 14:13:56,389 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 14:13:56,392 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 14:13:56,392 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 14:13:56,393 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 14:13:56,394 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:13:55" (3/4) ... [2020-10-24 14:13:56,398 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 14:13:56,399 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 14:13:56,406 INFO L168 Benchmark]: Toolchain (without parser) took 1074.07 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 23.6 MB in the beginning and 33.8 MB in the end (delta: -10.2 MB). Peak memory consumption was 2.4 MB. Max. memory is 16.1 GB. [2020-10-24 14:13:56,409 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 37.7 MB. Free memory was 19.8 MB in the beginning and 19.7 MB in the end (delta: 42.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:13:56,411 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.24 ms. Allocated memory is still 46.1 MB. Free memory was 23.0 MB in the beginning and 25.3 MB in the end (delta: -2.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-10-24 14:13:56,413 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.49 ms. Allocated memory is still 46.1 MB. Free memory was 25.3 MB in the beginning and 24.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:13:56,415 INFO L168 Benchmark]: Boogie Preprocessor took 21.03 ms. Allocated memory is still 46.1 MB. Free memory was 24.0 MB in the beginning and 23.1 MB in the end (delta: 993.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:13:56,416 INFO L168 Benchmark]: RCFGBuilder took 285.60 ms. Allocated memory is still 46.1 MB. Free memory was 23.1 MB in the beginning and 25.4 MB in the end (delta: -2.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. [2020-10-24 14:13:56,418 INFO L168 Benchmark]: TraceAbstraction took 417.64 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 24.9 MB in the beginning and 34.4 MB in the end (delta: -9.5 MB). Peak memory consumption was 296.5 kB. Max. memory is 16.1 GB. [2020-10-24 14:13:56,420 INFO L168 Benchmark]: Witness Printer took 6.53 ms. Allocated memory is still 56.6 MB. Free memory was 34.1 MB in the beginning and 33.8 MB in the end (delta: 269.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:13:56,439 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 37.7 MB. Free memory was 19.8 MB in the beginning and 19.7 MB in the end (delta: 42.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 289.24 ms. Allocated memory is still 46.1 MB. Free memory was 23.0 MB in the beginning and 25.3 MB in the end (delta: -2.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.49 ms. Allocated memory is still 46.1 MB. Free memory was 25.3 MB in the beginning and 24.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.03 ms. Allocated memory is still 46.1 MB. Free memory was 24.0 MB in the beginning and 23.1 MB in the end (delta: 993.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 285.60 ms. Allocated memory is still 46.1 MB. Free memory was 23.1 MB in the beginning and 25.4 MB in the end (delta: -2.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 417.64 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 24.9 MB in the beginning and 34.4 MB in the end (delta: -9.5 MB). Peak memory consumption was 296.5 kB. Max. memory is 16.1 GB. * Witness Printer took 6.53 ms. Allocated memory is still 56.6 MB. Free memory was 34.1 MB in the beginning and 33.8 MB in the end (delta: 269.2 kB). There was no memory consumed. Max. memory is 16.1 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 someBinaryArithmeticFLOAT_SMToperation at line 8, overapproximation of to_int at line 10. Possible FailurePath: [L8] float fs1=2.0f/6.0f; [L9] float fs2=fs1*6.0f; [L10] COND TRUE !((int)fs2==2) [L3] __assert_fail("0", "float-no-simp3.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-ee8e70e [2020-10-24 14:13:59,193 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 14:13:59,197 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 14:13:59,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 14:13:59,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 14:13:59,235 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 14:13:59,237 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 14:13:59,239 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 14:13:59,242 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 14:13:59,243 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 14:13:59,245 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 14:13:59,247 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 14:13:59,247 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 14:13:59,249 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 14:13:59,250 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 14:13:59,252 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 14:13:59,253 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 14:13:59,255 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 14:13:59,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 14:13:59,260 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 14:13:59,262 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 14:13:59,264 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 14:13:59,266 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 14:13:59,267 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 14:13:59,270 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 14:13:59,271 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 14:13:59,271 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 14:13:59,273 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 14:13:59,274 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 14:13:59,275 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 14:13:59,276 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 14:13:59,277 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 14:13:59,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 14:13:59,279 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 14:13:59,281 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 14:13:59,281 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 14:13:59,283 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 14:13:59,283 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 14:13:59,284 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 14:13:59,288 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 14:13:59,289 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 14:13:59,292 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 14:13:59,352 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 14:13:59,352 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 14:13:59,356 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 14:13:59,356 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 14:13:59,357 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 14:13:59,357 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 14:13:59,357 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 14:13:59,358 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 14:13:59,358 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 14:13:59,358 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 14:13:59,360 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 14:13:59,360 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 14:13:59,360 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 14:13:59,360 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 14:13:59,361 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 14:13:59,361 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 14:13:59,361 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 14:13:59,361 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 14:13:59,362 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 14:13:59,362 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 14:13:59,362 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 14:13:59,363 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 14:13:59,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:13:59,363 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 14:13:59,363 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 14:13:59,364 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 14:13:59,364 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 14:13:59,364 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 14:13:59,364 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 14:13:59,365 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 14:13:59,365 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 14:13:59,365 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80f4c7cd3af7d4ef31d93e6369e6026704f12fbd [2020-10-24 14:13:59,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 14:13:59,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 14:13:59,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 14:13:59,900 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 14:13:59,901 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 14:13:59,903 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2020-10-24 14:14:00,006 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2630c479c/f4f6cc682030434db508d97301902ac6/FLAG32e9dc286 [2020-10-24 14:14:00,704 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 14:14:00,705 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2020-10-24 14:14:00,712 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2630c479c/f4f6cc682030434db508d97301902ac6/FLAG32e9dc286 [2020-10-24 14:14:01,069 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2630c479c/f4f6cc682030434db508d97301902ac6 [2020-10-24 14:14:01,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 14:14:01,080 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 14:14:01,082 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 14:14:01,082 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 14:14:01,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 14:14:01,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:14:01" (1/1) ... [2020-10-24 14:14:01,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ebb2751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:14:01, skipping insertion in model container [2020-10-24 14:14:01,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:14:01" (1/1) ... [2020-10-24 14:14:01,120 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 14:14:01,158 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 14:14:01,326 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:14:01,346 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 14:14:01,364 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:14:01,383 INFO L217 MainTranslator]: Completed translation [2020-10-24 14:14:01,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:14:01 WrapperNode [2020-10-24 14:14:01,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 14:14:01,385 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 14:14:01,386 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 14:14:01,386 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 14:14:01,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:14:01" (1/1) ... [2020-10-24 14:14:01,407 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:14:01" (1/1) ... [2020-10-24 14:14:01,428 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 14:14:01,429 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 14:14:01,429 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 14:14:01,429 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 14:14:01,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:14:01" (1/1) ... [2020-10-24 14:14:01,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:14:01" (1/1) ... [2020-10-24 14:14:01,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:14:01" (1/1) ... [2020-10-24 14:14:01,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:14:01" (1/1) ... [2020-10-24 14:14:01,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:14:01" (1/1) ... [2020-10-24 14:14:01,452 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:14:01" (1/1) ... [2020-10-24 14:14:01,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:14:01" (1/1) ... [2020-10-24 14:14:01,461 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 14:14:01,462 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 14:14:01,463 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 14:14:01,463 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 14:14:01,466 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:14:01" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-24 14:14:01,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 14:14:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 14:14:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 14:14:01,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 14:14:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_FLOAT [2020-10-24 14:14:01,856 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 14:14:01,856 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-24 14:14:01,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:14:01 BoogieIcfgContainer [2020-10-24 14:14:01,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 14:14:01,861 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 14:14:01,861 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 14:14:01,866 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 14:14:01,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:14:01" (1/3) ... [2020-10-24 14:14:01,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d0ba6fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:14:01, skipping insertion in model container [2020-10-24 14:14:01,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:14:01" (2/3) ... [2020-10-24 14:14:01,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d0ba6fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:14:01, skipping insertion in model container [2020-10-24 14:14:01,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:14:01" (3/3) ... [2020-10-24 14:14:01,871 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp3.c [2020-10-24 14:14:01,887 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 14:14:01,892 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 14:14:01,910 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 14:14:01,945 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 14:14:01,946 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 14:14:01,946 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 14:14:01,946 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 14:14:01,946 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 14:14:01,947 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 14:14:01,947 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 14:14:01,947 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 14:14:01,964 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-10-24 14:14:01,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-24 14:14:01,971 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:14:01,972 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-24 14:14:01,972 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:14:01,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:14:01,981 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-10-24 14:14:01,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:14:01,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1306866134] [2020-10-24 14:14:01,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-24 14:14:02,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:14:02,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-24 14:14:02,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:14:04,853 WARN L193 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-10-24 14:14:04,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:14:04,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:14:14,103 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification that was a NOOP. DAG size: 50 [2020-10-24 14:14:14,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:14:14,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1306866134] [2020-10-24 14:14:14,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:14:14,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-24 14:14:14,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112114206] [2020-10-24 14:14:14,114 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 14:14:14,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:14:14,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 14:14:14,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=17, Unknown=2, NotChecked=0, Total=30 [2020-10-24 14:14:14,134 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 6 states. [2020-10-24 14:14:18,652 WARN L193 SmtUtils]: Spent 3.70 s on a formula simplification that was a NOOP. DAG size: 42 [2020-10-24 14:14:19,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:14:19,214 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2020-10-24 14:14:19,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 14:14:19,268 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2020-10-24 14:14:19,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:14:19,274 INFO L225 Difference]: With dead ends: 12 [2020-10-24 14:14:19,275 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 14:14:19,278 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.8s TimeCoverageRelationStatistics Valid=17, Invalid=23, Unknown=2, NotChecked=0, Total=42 [2020-10-24 14:14:19,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 14:14:19,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 14:14:19,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 14:14:19,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 14:14:19,311 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-10-24 14:14:19,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:14:19,312 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 14:14:19,312 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 14:14:19,312 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 14:14:19,313 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 14:14:19,519 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 14:14:19,523 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 14:14:19,526 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-24 14:14:19,527 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-24 14:14:19,527 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-24 14:14:19,527 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-24 14:14:19,527 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-24 14:14:19,527 INFO L274 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-10-24 14:14:19,528 INFO L274 CegarLoopResult]: For program point L5(lines 5 11) no Hoare annotation was computed. [2020-10-24 14:14:19,528 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-24 14:14:19,528 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-24 14:14:19,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:14:19 BoogieIcfgContainer [2020-10-24 14:14:19,536 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 14:14:19,538 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 14:14:19,538 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 14:14:19,538 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 14:14:19,539 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:14:01" (3/4) ... [2020-10-24 14:14:19,542 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-24 14:14:19,552 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-10-24 14:14:19,553 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-24 14:14:19,553 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-24 14:14:19,553 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 14:14:19,600 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 14:14:19,601 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 14:14:19,603 INFO L168 Benchmark]: Toolchain (without parser) took 18527.99 ms. Allocated memory was 39.8 MB in the beginning and 48.2 MB in the end (delta: 8.4 MB). Free memory was 16.2 MB in the beginning and 26.0 MB in the end (delta: -9.8 MB). Peak memory consumption was 1.6 MB. Max. memory is 16.1 GB. [2020-10-24 14:14:19,606 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 39.8 MB. Free memory was 25.3 MB in the beginning and 25.3 MB in the end (delta: 30.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:14:19,608 INFO L168 Benchmark]: CACSL2BoogieTranslator took 302.50 ms. Allocated memory was 39.8 MB in the beginning and 48.2 MB in the end (delta: 8.4 MB). Free memory was 15.5 MB in the beginning and 23.3 MB in the end (delta: -7.8 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2020-10-24 14:14:19,610 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.82 ms. Allocated memory is still 48.2 MB. Free memory was 23.3 MB in the beginning and 21.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:14:19,611 INFO L168 Benchmark]: Boogie Preprocessor took 32.58 ms. Allocated memory is still 48.2 MB. Free memory was 21.8 MB in the beginning and 20.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:14:19,616 INFO L168 Benchmark]: RCFGBuilder took 396.72 ms. Allocated memory is still 48.2 MB. Free memory was 20.7 MB in the beginning and 21.9 MB in the end (delta: -1.1 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. [2020-10-24 14:14:19,619 INFO L168 Benchmark]: TraceAbstraction took 17675.63 ms. Allocated memory is still 48.2 MB. Free memory was 21.4 MB in the beginning and 28.3 MB in the end (delta: -6.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:14:19,620 INFO L168 Benchmark]: Witness Printer took 63.46 ms. Allocated memory is still 48.2 MB. Free memory was 28.3 MB in the beginning and 26.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-24 14:14:19,630 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 39.8 MB. Free memory was 25.3 MB in the beginning and 25.3 MB in the end (delta: 30.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 302.50 ms. Allocated memory was 39.8 MB in the beginning and 48.2 MB in the end (delta: 8.4 MB). Free memory was 15.5 MB in the beginning and 23.3 MB in the end (delta: -7.8 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.82 ms. Allocated memory is still 48.2 MB. Free memory was 23.3 MB in the beginning and 21.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.58 ms. Allocated memory is still 48.2 MB. Free memory was 21.8 MB in the beginning and 20.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 396.72 ms. Allocated memory is still 48.2 MB. Free memory was 20.7 MB in the beginning and 21.9 MB in the end (delta: -1.1 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 17675.63 ms. Allocated memory is still 48.2 MB. Free memory was 21.4 MB in the beginning and 28.3 MB in the end (delta: -6.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 63.46 ms. Allocated memory is still 48.2 MB. Free memory was 28.3 MB in the beginning and 26.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 SDtfs, 7 SDslu, 2 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 11.6s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 2 QuantifiedInterpolants, 606 SizeOfPredicates, 3 NumberOfNonLiveVariables, 29 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...