./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/bary_diverge.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-benchs/bary_diverge.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 4217b41001a9030eb8124c79f0e7a7772f611bd4 .................................................................................................................................................................................................................................................................................................. 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-benchs/bary_diverge.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 4217b41001a9030eb8124c79f0e7a7772f611bd4 ......................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 00:16:24,972 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:16:24,975 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:16:25,015 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:16:25,016 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:16:25,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:16:25,028 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:16:25,031 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:16:25,034 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:16:25,037 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:16:25,038 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:16:25,040 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:16:25,040 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:16:25,043 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:16:25,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:16:25,046 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:16:25,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:16:25,049 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:16:25,051 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:16:25,059 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:16:25,061 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:16:25,063 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:16:25,065 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:16:25,066 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:16:25,078 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:16:25,078 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:16:25,078 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:16:25,079 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:16:25,080 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:16:25,080 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:16:25,081 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:16:25,081 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:16:25,082 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:16:25,083 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:16:25,084 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:16:25,084 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:16:25,085 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:16:25,085 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:16:25,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:16:25,086 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:16:25,086 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:16:25,087 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 00:16:25,114 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:16:25,115 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:16:25,116 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:16:25,116 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:16:25,117 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:16:25,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:16:25,117 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:16:25,117 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 00:16:25,118 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:16:25,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:16:25,118 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:16:25,118 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:16:25,119 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:16:25,119 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:16:25,119 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:16:25,119 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:16:25,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:16:25,120 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:16:25,120 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:16:25,120 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:16:25,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:16:25,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:16:25,121 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:16:25,121 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:16:25,122 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:16:25,122 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 00:16:25,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 00:16:25,122 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:16:25,123 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:16:25,123 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 -> 4217b41001a9030eb8124c79f0e7a7772f611bd4 [2020-10-20 00:16:25,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:16:25,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:16:25,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:16:25,350 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:16:25,350 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:16:25,351 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/bary_diverge.c [2020-10-20 00:16:25,414 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be96fb01c/587ad070ec16488690bda5376192e69b/FLAG75800ec13 [2020-10-20 00:16:25,903 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:16:25,904 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/bary_diverge.c [2020-10-20 00:16:25,912 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be96fb01c/587ad070ec16488690bda5376192e69b/FLAG75800ec13 [2020-10-20 00:16:26,283 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be96fb01c/587ad070ec16488690bda5376192e69b [2020-10-20 00:16:26,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:16:26,294 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:16:26,296 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:16:26,296 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:16:26,299 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:16:26,300 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:16:26" (1/1) ... [2020-10-20 00:16:26,303 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56c9c324 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:26, skipping insertion in model container [2020-10-20 00:16:26,303 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:16:26" (1/1) ... [2020-10-20 00:16:26,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:16:26,329 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:16:26,544 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:16:26,555 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:16:26,578 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:16:26,597 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:16:26,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:26 WrapperNode [2020-10-20 00:16:26,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:16:26,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:16:26,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:16:26,599 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:16:26,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:26" (1/1) ... [2020-10-20 00:16:26,619 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:26" (1/1) ... [2020-10-20 00:16:26,647 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:16:26,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:16:26,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:16:26,649 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:16:26,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:26" (1/1) ... [2020-10-20 00:16:26,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:26" (1/1) ... [2020-10-20 00:16:26,662 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:26" (1/1) ... [2020-10-20 00:16:26,662 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:26" (1/1) ... [2020-10-20 00:16:26,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:26" (1/1) ... [2020-10-20 00:16:26,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:26" (1/1) ... [2020-10-20 00:16:26,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:26" (1/1) ... [2020-10-20 00:16:26,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:16:26,681 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:16:26,681 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:16:26,681 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:16:26,682 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:26" (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 00:16:26,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 00:16:26,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:16:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:16:26,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:16:27,035 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:16:27,035 INFO L298 CfgBuilder]: Removed 33 assume(true) statements. [2020-10-20 00:16:27,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:16:27 BoogieIcfgContainer [2020-10-20 00:16:27,038 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:16:27,040 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:16:27,040 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:16:27,045 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:16:27,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:16:26" (1/3) ... [2020-10-20 00:16:27,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@138e639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:16:27, skipping insertion in model container [2020-10-20 00:16:27,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:26" (2/3) ... [2020-10-20 00:16:27,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@138e639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:16:27, skipping insertion in model container [2020-10-20 00:16:27,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:16:27" (3/3) ... [2020-10-20 00:16:27,050 INFO L111 eAbstractionObserver]: Analyzing ICFG bary_diverge.c [2020-10-20 00:16:27,066 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:16:27,076 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:16:27,096 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:16:27,130 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:16:27,131 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:16:27,131 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:16:27,131 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:16:27,132 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:16:27,132 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:16:27,132 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:16:27,132 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:16:27,149 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-10-20 00:16:27,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 00:16:27,157 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:16:27,159 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:16:27,159 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:16:27,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:16:27,166 INFO L82 PathProgramCache]: Analyzing trace with hash -28394951, now seen corresponding path program 1 times [2020-10-20 00:16:27,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:16:27,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086483011] [2020-10-20 00:16:27,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:16:27,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:16:27,346 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 00:16:27,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086483011] [2020-10-20 00:16:27,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:16:27,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 00:16:27,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169228131] [2020-10-20 00:16:27,355 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:16:27,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:16:27,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:16:27,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:16:27,372 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2020-10-20 00:16:27,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:16:27,394 INFO L93 Difference]: Finished difference Result 58 states and 75 transitions. [2020-10-20 00:16:27,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:16:27,395 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2020-10-20 00:16:27,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:16:27,407 INFO L225 Difference]: With dead ends: 58 [2020-10-20 00:16:27,407 INFO L226 Difference]: Without dead ends: 26 [2020-10-20 00:16:27,411 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 00:16:27,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-20 00:16:27,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-10-20 00:16:27,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-20 00:16:27,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2020-10-20 00:16:27,451 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 14 [2020-10-20 00:16:27,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:16:27,451 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2020-10-20 00:16:27,451 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:16:27,452 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2020-10-20 00:16:27,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 00:16:27,453 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:16:27,453 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:16:27,453 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 00:16:27,454 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:16:27,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:16:27,454 INFO L82 PathProgramCache]: Analyzing trace with hash 229770487, now seen corresponding path program 1 times [2020-10-20 00:16:27,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:16:27,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146400203] [2020-10-20 00:16:27,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:16:27,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:16:27,496 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:16:27,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:16:27,526 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:16:27,562 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 00:16:27,563 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 00:16:27,564 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 00:16:27,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:16:27 BoogieIcfgContainer [2020-10-20 00:16:27,603 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:16:27,603 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:16:27,603 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:16:27,604 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:16:27,605 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:16:27" (3/4) ... [2020-10-20 00:16:27,609 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 00:16:27,609 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:16:27,612 INFO L168 Benchmark]: Toolchain (without parser) took 1321.75 ms. Allocated memory was 41.9 MB in the beginning and 45.1 MB in the end (delta: 3.1 MB). Free memory was 22.0 MB in the beginning and 9.6 MB in the end (delta: 12.5 MB). Peak memory consumption was 15.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:16:27,613 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 32.0 MB. Free memory was 11.1 MB in the beginning and 11.0 MB in the end (delta: 68.4 kB). Peak memory consumption was 68.4 kB. Max. memory is 14.3 GB. [2020-10-20 00:16:27,614 INFO L168 Benchmark]: CACSL2BoogieTranslator took 302.68 ms. Allocated memory was 41.9 MB in the beginning and 42.5 MB in the end (delta: 524.3 kB). Free memory was 21.1 MB in the beginning and 21.5 MB in the end (delta: -347.7 kB). Peak memory consumption was 12.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:16:27,615 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.03 ms. Allocated memory is still 42.5 MB. Free memory was 21.5 MB in the beginning and 19.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. [2020-10-20 00:16:27,616 INFO L168 Benchmark]: Boogie Preprocessor took 32.10 ms. Allocated memory is still 42.5 MB. Free memory was 19.5 MB in the beginning and 18.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:16:27,617 INFO L168 Benchmark]: RCFGBuilder took 357.17 ms. Allocated memory was 42.5 MB in the beginning and 45.1 MB in the end (delta: 2.6 MB). Free memory was 18.0 MB in the beginning and 19.1 MB in the end (delta: -1.1 MB). Peak memory consumption was 9.0 MB. Max. memory is 14.3 GB. [2020-10-20 00:16:27,618 INFO L168 Benchmark]: TraceAbstraction took 562.93 ms. Allocated memory is still 45.1 MB. Free memory was 18.6 MB in the beginning and 10.1 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 14.3 GB. [2020-10-20 00:16:27,619 INFO L168 Benchmark]: Witness Printer took 6.13 ms. Allocated memory is still 45.1 MB. Free memory was 10.1 MB in the beginning and 9.9 MB in the end (delta: 284.7 kB). Peak memory consumption was 284.7 kB. Max. memory is 14.3 GB. [2020-10-20 00:16:27,626 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 32.0 MB. Free memory was 11.1 MB in the beginning and 11.0 MB in the end (delta: 68.4 kB). Peak memory consumption was 68.4 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 302.68 ms. Allocated memory was 41.9 MB in the beginning and 42.5 MB in the end (delta: 524.3 kB). Free memory was 21.1 MB in the beginning and 21.5 MB in the end (delta: -347.7 kB). Peak memory consumption was 12.3 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 49.03 ms. Allocated memory is still 42.5 MB. Free memory was 21.5 MB in the beginning and 19.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 32.10 ms. Allocated memory is still 42.5 MB. Free memory was 19.5 MB in the beginning and 18.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * RCFGBuilder took 357.17 ms. Allocated memory was 42.5 MB in the beginning and 45.1 MB in the end (delta: 2.6 MB). Free memory was 18.0 MB in the beginning and 19.1 MB in the end (delta: -1.1 MB). Peak memory consumption was 9.0 MB. Max. memory is 14.3 GB. * TraceAbstraction took 562.93 ms. Allocated memory is still 45.1 MB. Free memory was 18.6 MB in the beginning and 10.1 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 14.3 GB. * Witness Printer took 6.13 ms. Allocated memory is still 45.1 MB. Free memory was 10.1 MB in the beginning and 9.9 MB in the end (delta: 284.7 kB). Peak memory consumption was 284.7 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 50. Possible FailurePath: [L19] BOOLEAN INIT; [L20] float C1, I; [L34] static float X,Y,Z; VAL [C1=0, I=0, INIT=0, X=0, Y=0, Z=0] [L55] int i; [L57] INIT = TRUE [L24] float x; [L25] x = __VERIFIER_nondet_float() [L12] COND FALSE !(!cond) VAL [C1=0, I=0, INIT=1, X=0, Y=0, Z=0] [L27] return x; VAL [C1=0, I=0, INIT=1, X=0, Y=0, Z=0] [L58] C1 = RANDOM_INPUT() [L24] float x; [L25] x = __VERIFIER_nondet_float() [L12] COND FALSE !(!cond) VAL [C1=50, I=0, INIT=1, X=0, Y=0, Z=0] [L27] return x; VAL [C1=50, I=0, INIT=1, X=0, Y=0, Z=0] [L59] I = RANDOM_INPUT() [L61] i = 0 VAL [C1=50, I=49, INIT=1, X=0, Y=0, Z=0] [L61] COND TRUE i < 3600000 VAL [C1=50, I=49, INIT=1, X=0, Y=0, Z=0] [L36] COND FALSE !(C1 > 0.f) VAL [C1=50, I=49, INIT=1, X=0, Y=0, Z=0] [L41] COND TRUE INIT == TRUE [L42] X = I [L43] Y = I [L44] Z = I VAL [C1=50, I=49, INIT=1, X=49, Y=49, Z=49] [L14] COND TRUE !(cond) VAL [C1=50, I=49, INIT=1, X=49, Y=49, Z=49] [L3] __assert_fail("0", "bary_diverge.c", 3, "reach_error") VAL [C1=50, I=49, INIT=1, X=49, Y=49, Z=49] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 32 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=31occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 169 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 00:16:29,881 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:16:29,884 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:16:29,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:16:29,922 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:16:29,928 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:16:29,930 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:16:29,934 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:16:29,936 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:16:29,937 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:16:29,938 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:16:29,940 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:16:29,940 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:16:29,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:16:29,944 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:16:29,946 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:16:29,947 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:16:29,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:16:29,950 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:16:29,953 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:16:29,955 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:16:29,957 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:16:29,959 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:16:29,960 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:16:29,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:16:29,966 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:16:29,967 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:16:29,975 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:16:29,976 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:16:29,977 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:16:29,977 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:16:29,978 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:16:29,978 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:16:29,980 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:16:29,981 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:16:29,983 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:16:29,984 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:16:29,984 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:16:29,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:16:29,985 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:16:29,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:16:29,988 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-20 00:16:30,026 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:16:30,026 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:16:30,028 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:16:30,028 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:16:30,028 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:16:30,028 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:16:30,029 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:16:30,029 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:16:30,029 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:16:30,029 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:16:30,030 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:16:30,030 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:16:30,030 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 00:16:30,030 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 00:16:30,031 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:16:30,031 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:16:30,031 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:16:30,031 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:16:30,032 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:16:30,032 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:16:30,032 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:16:30,032 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:16:30,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:16:30,033 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:16:30,033 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:16:30,033 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:16:30,034 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 00:16:30,034 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 00:16:30,034 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:16:30,034 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:16:30,035 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 00:16:30,035 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 -> 4217b41001a9030eb8124c79f0e7a7772f611bd4 [2020-10-20 00:16:30,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:16:30,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:16:30,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:16:30,239 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:16:30,239 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:16:30,240 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/bary_diverge.c [2020-10-20 00:16:30,303 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e782ba881/385f542281c143dc90241a3500a31de6/FLAGc76e0309c [2020-10-20 00:16:30,753 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:16:30,754 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/bary_diverge.c [2020-10-20 00:16:30,759 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e782ba881/385f542281c143dc90241a3500a31de6/FLAGc76e0309c [2020-10-20 00:16:31,151 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e782ba881/385f542281c143dc90241a3500a31de6 [2020-10-20 00:16:31,155 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:16:31,163 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:16:31,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:16:31,164 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:16:31,169 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:16:31,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:16:31" (1/1) ... [2020-10-20 00:16:31,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63522197 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:31, skipping insertion in model container [2020-10-20 00:16:31,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:16:31" (1/1) ... [2020-10-20 00:16:31,185 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:16:31,210 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:16:31,476 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:16:31,493 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:16:31,518 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:16:31,538 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:16:31,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:31 WrapperNode [2020-10-20 00:16:31,539 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:16:31,540 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:16:31,540 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:16:31,540 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:16:31,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:31" (1/1) ... [2020-10-20 00:16:31,561 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:31" (1/1) ... [2020-10-20 00:16:31,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:16:31,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:16:31,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:16:31,589 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:16:31,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:31" (1/1) ... [2020-10-20 00:16:31,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:31" (1/1) ... [2020-10-20 00:16:31,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:31" (1/1) ... [2020-10-20 00:16:31,604 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:31" (1/1) ... [2020-10-20 00:16:31,613 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:31" (1/1) ... [2020-10-20 00:16:31,618 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:31" (1/1) ... [2020-10-20 00:16:31,621 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:31" (1/1) ... [2020-10-20 00:16:31,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:16:31,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:16:31,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:16:31,626 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:16:31,627 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:31" (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 00:16:31,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-20 00:16:31,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:16:31,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:16:31,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:16:34,122 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:16:34,122 INFO L298 CfgBuilder]: Removed 33 assume(true) statements. [2020-10-20 00:16:34,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:16:34 BoogieIcfgContainer [2020-10-20 00:16:34,124 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:16:34,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:16:34,126 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:16:34,130 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:16:34,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:16:31" (1/3) ... [2020-10-20 00:16:34,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@be1ecbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:16:34, skipping insertion in model container [2020-10-20 00:16:34,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:16:31" (2/3) ... [2020-10-20 00:16:34,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@be1ecbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:16:34, skipping insertion in model container [2020-10-20 00:16:34,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:16:34" (3/3) ... [2020-10-20 00:16:34,136 INFO L111 eAbstractionObserver]: Analyzing ICFG bary_diverge.c [2020-10-20 00:16:34,150 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:16:34,158 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:16:34,171 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:16:34,196 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:16:34,196 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:16:34,197 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:16:34,197 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:16:34,197 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:16:34,197 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:16:34,198 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:16:34,198 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:16:34,215 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-10-20 00:16:34,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 00:16:34,222 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:16:34,223 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:16:34,224 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:16:34,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:16:34,231 INFO L82 PathProgramCache]: Analyzing trace with hash -28394951, now seen corresponding path program 1 times [2020-10-20 00:16:34,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:16:34,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1783165277] [2020-10-20 00:16:34,246 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 00:16:34,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:16:34,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-20 00:16:34,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:16:34,383 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 00:16:34,384 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:16:34,395 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 00:16:34,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1783165277] [2020-10-20 00:16:34,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:16:34,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 00:16:34,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400901075] [2020-10-20 00:16:34,405 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:16:34,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:16:34,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:16:34,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:16:34,424 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2020-10-20 00:16:34,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:16:34,444 INFO L93 Difference]: Finished difference Result 58 states and 75 transitions. [2020-10-20 00:16:34,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:16:34,445 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2020-10-20 00:16:34,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:16:34,454 INFO L225 Difference]: With dead ends: 58 [2020-10-20 00:16:34,454 INFO L226 Difference]: Without dead ends: 26 [2020-10-20 00:16:34,458 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 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 00:16:34,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-20 00:16:34,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-10-20 00:16:34,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-20 00:16:34,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2020-10-20 00:16:34,492 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 14 [2020-10-20 00:16:34,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:16:34,493 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2020-10-20 00:16:34,493 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:16:34,493 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2020-10-20 00:16:34,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 00:16:34,494 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:16:34,494 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:16:34,695 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 00:16:34,696 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:16:34,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:16:34,697 INFO L82 PathProgramCache]: Analyzing trace with hash 229770487, now seen corresponding path program 1 times [2020-10-20 00:16:34,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:16:34,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1891204625] [2020-10-20 00:16:34,703 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 00:16:34,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:16:34,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-20 00:16:34,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:16:34,864 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1891204625] [2020-10-20 00:16:34,865 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 00:16:34,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1010203261] [2020-10-20 00:16:34,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-20 00:16:35,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:16:35,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-20 00:16:35,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:16:35,131 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 00:16:35,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478139863] [2020-10-20 00:16:35,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 00:16:35,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:16:35,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-20 00:16:35,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:16:35,274 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-20 00:16:35,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:16:35,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-20 00:16:35,275 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-10-20 00:16:35,275 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 00:16:35,900 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk,3 mathsat -unsat_core_generation=3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 00:16:35,923 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-20 00:16:35,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:16:35 BoogieIcfgContainer [2020-10-20 00:16:35,924 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:16:35,925 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:16:35,925 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:16:35,925 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:16:35,927 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:16:34" (3/4) ... [2020-10-20 00:16:35,931 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 00:16:35,933 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:16:35,942 INFO L168 Benchmark]: Toolchain (without parser) took 4781.81 ms. Allocated memory was 37.7 MB in the beginning and 51.4 MB in the end (delta: 13.6 MB). Free memory was 13.0 MB in the beginning and 33.1 MB in the end (delta: -20.1 MB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 00:16:35,943 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 37.2 MB. Free memory is still 16.1 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 00:16:35,944 INFO L168 Benchmark]: CACSL2BoogieTranslator took 375.43 ms. Allocated memory was 37.7 MB in the beginning and 45.1 MB in the end (delta: 7.3 MB). Free memory was 12.1 MB in the beginning and 26.7 MB in the end (delta: -14.5 MB). Peak memory consumption was 8.9 MB. Max. memory is 14.3 GB. [2020-10-20 00:16:35,945 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.01 ms. Allocated memory is still 45.1 MB. Free memory was 26.7 MB in the beginning and 24.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. [2020-10-20 00:16:35,948 INFO L168 Benchmark]: Boogie Preprocessor took 36.39 ms. Allocated memory is still 45.1 MB. Free memory was 24.5 MB in the beginning and 22.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:16:35,949 INFO L168 Benchmark]: RCFGBuilder took 2498.77 ms. Allocated memory was 45.1 MB in the beginning and 47.7 MB in the end (delta: 2.6 MB). Free memory was 22.8 MB in the beginning and 20.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 11.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:16:35,956 INFO L168 Benchmark]: TraceAbstraction took 1798.82 ms. Allocated memory was 47.7 MB in the beginning and 51.4 MB in the end (delta: 3.7 MB). Free memory was 19.7 MB in the beginning and 33.5 MB in the end (delta: -13.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:16:35,959 INFO L168 Benchmark]: Witness Printer took 11.85 ms. Allocated memory is still 51.4 MB. Free memory was 33.5 MB in the beginning and 33.1 MB in the end (delta: 408.6 kB). Peak memory consumption was 408.6 kB. Max. memory is 14.3 GB. [2020-10-20 00:16:35,970 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 37.2 MB. Free memory is still 16.1 MB. There was no memory consumed. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 375.43 ms. Allocated memory was 37.7 MB in the beginning and 45.1 MB in the end (delta: 7.3 MB). Free memory was 12.1 MB in the beginning and 26.7 MB in the end (delta: -14.5 MB). Peak memory consumption was 8.9 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 49.01 ms. Allocated memory is still 45.1 MB. Free memory was 26.7 MB in the beginning and 24.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 36.39 ms. Allocated memory is still 45.1 MB. Free memory was 24.5 MB in the beginning and 22.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * RCFGBuilder took 2498.77 ms. Allocated memory was 45.1 MB in the beginning and 47.7 MB in the end (delta: 2.6 MB). Free memory was 22.8 MB in the beginning and 20.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 11.6 MB. Max. memory is 14.3 GB. * TraceAbstraction took 1798.82 ms. Allocated memory was 47.7 MB in the beginning and 51.4 MB in the end (delta: 3.7 MB). Free memory was 19.7 MB in the beginning and 33.5 MB in the end (delta: -13.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 14.3 GB. * Witness Printer took 11.85 ms. Allocated memory is still 51.4 MB. Free memory was 33.5 MB in the beginning and 33.1 MB in the end (delta: 408.6 kB). Peak memory consumption was 408.6 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: unable to decide satisfiability of path constraint. Possible FailurePath: [L19] BOOLEAN INIT; [L20] float C1, I; [L34] static float X,Y,Z; [L55] int i; [L57] INIT = TRUE [L24] float x; [L25] x = __VERIFIER_nondet_float() [L12] COND FALSE !(!cond) [L27] return x; [L58] C1 = RANDOM_INPUT() [L24] float x; [L25] x = __VERIFIER_nondet_float() [L12] COND FALSE !(!cond) [L27] return x; [L59] I = RANDOM_INPUT() [L61] i = 0 [L61] COND TRUE i < 3600000 [L36] COND FALSE !(C1 > 0.f) [L41] COND TRUE INIT == TRUE [L42] X = I [L43] Y = I [L44] Z = I [L14] COND TRUE !(cond) [L3] __assert_fail("0", "bary_diverge.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 1.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 32 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 338 SizeOfPredicates, 0 NumberOfNonLiveVariables, 50 ConjunctsInSsa, 1 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...