./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/zonotope_loose.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/zonotope_loose.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 4ffcfb5240555d68939cfa296fd9345209c9c26c .................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/zonotope_loose.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 4ffcfb5240555d68939cfa296fd9345209c9c26c ...................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 01:07:30,164 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 01:07:30,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 01:07:30,205 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 01:07:30,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 01:07:30,209 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 01:07:30,211 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 01:07:30,217 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 01:07:30,220 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 01:07:30,230 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 01:07:30,231 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 01:07:30,235 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 01:07:30,236 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 01:07:30,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 01:07:30,240 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 01:07:30,244 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 01:07:30,245 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 01:07:30,248 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 01:07:30,250 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 01:07:30,254 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 01:07:30,257 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 01:07:30,258 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 01:07:30,259 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 01:07:30,261 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 01:07:30,265 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 01:07:30,266 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 01:07:30,266 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 01:07:30,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 01:07:30,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 01:07:30,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 01:07:30,269 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 01:07:30,270 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 01:07:30,271 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 01:07:30,272 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 01:07:30,273 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 01:07:30,273 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 01:07:30,274 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 01:07:30,274 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 01:07:30,274 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 01:07:30,276 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 01:07:30,276 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 01:07:30,280 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 01:07:30,317 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 01:07:30,317 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 01:07:30,318 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 01:07:30,319 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 01:07:30,321 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 01:07:30,321 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 01:07:30,321 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 01:07:30,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 01:07:30,322 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 01:07:30,322 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 01:07:30,323 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 01:07:30,323 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 01:07:30,323 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 01:07:30,323 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 01:07:30,323 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 01:07:30,324 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 01:07:30,324 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 01:07:30,324 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 01:07:30,324 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 01:07:30,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 01:07:30,325 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 01:07:30,325 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 01:07:30,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:07:30,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 01:07:30,332 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 01:07:30,332 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 01:07:30,333 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 01:07:30,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 01:07:30,333 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 01:07:30,333 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 01:07:30,333 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ffcfb5240555d68939cfa296fd9345209c9c26c [2021-08-26 01:07:30,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 01:07:30,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 01:07:30,638 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 01:07:30,639 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 01:07:30,639 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 01:07:30,640 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/zonotope_loose.c [2021-08-26 01:07:30,695 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e57e52412/4a0a624254124916bc1a18673eb8fc9f/FLAGf88d11529 [2021-08-26 01:07:31,166 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 01:07:31,167 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/zonotope_loose.c [2021-08-26 01:07:31,173 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e57e52412/4a0a624254124916bc1a18673eb8fc9f/FLAGf88d11529 [2021-08-26 01:07:31,193 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e57e52412/4a0a624254124916bc1a18673eb8fc9f [2021-08-26 01:07:31,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 01:07:31,198 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 01:07:31,199 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 01:07:31,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 01:07:31,203 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 01:07:31,203 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:07:31" (1/1) ... [2021-08-26 01:07:31,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c842b1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:07:31, skipping insertion in model container [2021-08-26 01:07:31,205 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:07:31" (1/1) ... [2021-08-26 01:07:31,211 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 01:07:31,223 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 01:07:31,340 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/zonotope_loose.c[577,590] [2021-08-26 01:07:31,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:07:31,364 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 01:07:31,376 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/zonotope_loose.c[577,590] [2021-08-26 01:07:31,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:07:31,393 INFO L208 MainTranslator]: Completed translation [2021-08-26 01:07:31,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:07:31 WrapperNode [2021-08-26 01:07:31,396 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 01:07:31,397 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 01:07:31,397 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 01:07:31,397 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 01:07:31,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:07:31" (1/1) ... [2021-08-26 01:07:31,445 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:07:31" (1/1) ... [2021-08-26 01:07:31,462 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 01:07:31,463 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 01:07:31,463 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 01:07:31,463 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 01:07:31,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:07:31" (1/1) ... [2021-08-26 01:07:31,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:07:31" (1/1) ... [2021-08-26 01:07:31,480 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:07:31" (1/1) ... [2021-08-26 01:07:31,481 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:07:31" (1/1) ... [2021-08-26 01:07:31,491 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:07:31" (1/1) ... [2021-08-26 01:07:31,495 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:07:31" (1/1) ... [2021-08-26 01:07:31,496 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:07:31" (1/1) ... [2021-08-26 01:07:31,498 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 01:07:31,499 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 01:07:31,499 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 01:07:31,500 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 01:07:31,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:07:31" (1/1) ... [2021-08-26 01:07:31,506 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:07:31,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 01:07:31,526 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-26 01:07:31,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-26 01:07:31,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 01:07:31,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 01:07:31,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 01:07:31,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 01:07:31,809 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 01:07:31,824 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-26 01:07:31,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:07:31 BoogieIcfgContainer [2021-08-26 01:07:31,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 01:07:31,828 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 01:07:31,828 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 01:07:31,831 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 01:07:31,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 01:07:31" (1/3) ... [2021-08-26 01:07:31,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@595c9d88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:07:31, skipping insertion in model container [2021-08-26 01:07:31,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:07:31" (2/3) ... [2021-08-26 01:07:31,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@595c9d88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:07:31, skipping insertion in model container [2021-08-26 01:07:31,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:07:31" (3/3) ... [2021-08-26 01:07:31,834 INFO L111 eAbstractionObserver]: Analyzing ICFG zonotope_loose.c [2021-08-26 01:07:31,852 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 01:07:31,853 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-26 01:07:31,890 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 01:07:31,895 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-26 01:07:31,896 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-26 01:07:31,907 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:07:31,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-26 01:07:31,911 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:07:31,912 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:07:31,913 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:07:31,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:07:31,918 INFO L82 PathProgramCache]: Analyzing trace with hash 119383821, now seen corresponding path program 1 times [2021-08-26 01:07:31,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 01:07:31,926 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581849814] [2021-08-26 01:07:31,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:07:31,927 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 01:07:32,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:07:32,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:07:32,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 01:07:32,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581849814] [2021-08-26 01:07:32,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581849814] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 01:07:32,099 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:07:32,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-26 01:07:32,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909435573] [2021-08-26 01:07:32,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 01:07:32,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 01:07:32,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 01:07:32,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 01:07:32,132 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:07:32,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:07:32,144 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2021-08-26 01:07:32,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 01:07:32,145 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-08-26 01:07:32,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:07:32,151 INFO L225 Difference]: With dead ends: 23 [2021-08-26 01:07:32,151 INFO L226 Difference]: Without dead ends: 9 [2021-08-26 01:07:32,154 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 01:07:32,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-08-26 01:07:32,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-08-26 01:07:32,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:07:32,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-08-26 01:07:32,178 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 8 [2021-08-26 01:07:32,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:07:32,179 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-08-26 01:07:32,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:07:32,180 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-08-26 01:07:32,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-26 01:07:32,180 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:07:32,181 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:07:32,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 01:07:32,181 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:07:32,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:07:32,185 INFO L82 PathProgramCache]: Analyzing trace with hash 176642123, now seen corresponding path program 1 times [2021-08-26 01:07:32,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 01:07:32,186 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293512945] [2021-08-26 01:07:32,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:07:32,186 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 01:07:32,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 01:07:32,227 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-26 01:07:32,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 01:07:32,272 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-26 01:07:32,273 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-26 01:07:32,274 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 01:07:32,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-26 01:07:32,282 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 01:07:32,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 01:07:32 BoogieIcfgContainer [2021-08-26 01:07:32,302 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 01:07:32,303 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 01:07:32,303 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 01:07:32,303 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 01:07:32,303 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:07:31" (3/4) ... [2021-08-26 01:07:32,306 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-26 01:07:32,306 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 01:07:32,309 INFO L168 Benchmark]: Toolchain (without parser) took 1109.18 ms. Allocated memory is still 65.0 MB. Free memory was 48.2 MB in the beginning and 34.5 MB in the end (delta: 13.7 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. [2021-08-26 01:07:32,309 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 65.0 MB. Free memory is still 47.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:07:32,310 INFO L168 Benchmark]: CACSL2BoogieTranslator took 196.59 ms. Allocated memory is still 65.0 MB. Free memory was 48.0 MB in the beginning and 38.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-08-26 01:07:32,312 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.40 ms. Allocated memory is still 65.0 MB. Free memory was 38.5 MB in the beginning and 48.8 MB in the end (delta: -10.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 01:07:32,313 INFO L168 Benchmark]: Boogie Preprocessor took 35.11 ms. Allocated memory is still 65.0 MB. Free memory was 48.8 MB in the beginning and 48.0 MB in the end (delta: 848.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:07:32,317 INFO L168 Benchmark]: RCFGBuilder took 328.19 ms. Allocated memory is still 65.0 MB. Free memory was 47.7 MB in the beginning and 36.4 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-26 01:07:32,318 INFO L168 Benchmark]: TraceAbstraction took 473.51 ms. Allocated memory is still 65.0 MB. Free memory was 36.1 MB in the beginning and 34.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 3.7 MB. Max. memory is 16.1 GB. [2021-08-26 01:07:32,319 INFO L168 Benchmark]: Witness Printer took 4.02 ms. Allocated memory is still 65.0 MB. Free memory was 34.8 MB in the beginning and 34.5 MB in the end (delta: 335.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:07:32,321 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 65.0 MB. Free memory is still 47.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 196.59 ms. Allocated memory is still 65.0 MB. Free memory was 48.0 MB in the beginning and 38.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 65.40 ms. Allocated memory is still 65.0 MB. Free memory was 38.5 MB in the beginning and 48.8 MB in the end (delta: -10.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.11 ms. Allocated memory is still 65.0 MB. Free memory was 48.8 MB in the beginning and 48.0 MB in the end (delta: 848.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 328.19 ms. Allocated memory is still 65.0 MB. Free memory was 47.7 MB in the beginning and 36.4 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 473.51 ms. Allocated memory is still 65.0 MB. Free memory was 36.1 MB in the beginning and 34.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 3.7 MB. Max. memory is 16.1 GB. * Witness Printer took 4.02 ms. Allocated memory is still 65.0 MB. Free memory was 34.8 MB in the beginning and 34.5 MB in the end (delta: 335.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 14]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 27, overapproximation of someBinaryArithmeticDOUBLEoperation at line 24. Possible FailurePath: [L18] double x,y; [L20] x = __VERIFIER_nondet_double() [L12] COND FALSE !(!cond) [L23] y = x*x - x [L24] COND TRUE y >= 0 [L24] y = x / 10. [L14] COND TRUE !(cond) [L14] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 392.4ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 8.0ms, AutomataDifference: 39.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 13 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 11.6ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 16.6ms SsaConstructionTime, 74.7ms SatisfiabilityAnalysisTime, 52.9ms InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 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 [2021-08-26 01:07:32,354 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 01:07:34,120 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2021-08-26 01:07:34,178 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 01:07:34,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 01:07:34,179 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 01:07:34,180 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 01:07:34,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 01:07:34,181 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 01:07:34,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 01:07:34,182 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 01:07:34,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 01:07:34,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 01:07:34,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 01:07:34,185 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-26 01:07:34,213 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 01:07:34,217 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 01:07:34,219 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 01:07:34,219 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 01:07:34,220 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 01:07:34,221 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 01:07:34,221 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 01:07:34,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 01:07:34,222 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 01:07:34,222 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 01:07:34,223 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 01:07:34,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 01:07:34,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 01:07:34,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 01:07:34,223 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-26 01:07:34,223 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-26 01:07:34,224 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 01:07:34,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 01:07:34,224 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 01:07:34,224 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 01:07:34,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 01:07:34,225 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 01:07:34,225 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 01:07:34,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:07:34,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 01:07:34,225 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 01:07:34,226 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 01:07:34,226 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-26 01:07:34,226 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-26 01:07:34,226 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 01:07:34,226 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 01:07:34,226 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-26 01:07:34,227 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ffcfb5240555d68939cfa296fd9345209c9c26c [2021-08-26 01:07:34,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 01:07:34,542 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 01:07:34,545 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 01:07:34,546 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 01:07:34,546 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 01:07:34,547 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/zonotope_loose.c [2021-08-26 01:07:34,619 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf5be2065/915053ec6b17407b80028c44b9d987f5/FLAG66aa64f95 [2021-08-26 01:07:34,997 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 01:07:34,997 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/zonotope_loose.c [2021-08-26 01:07:35,003 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf5be2065/915053ec6b17407b80028c44b9d987f5/FLAG66aa64f95 [2021-08-26 01:07:35,435 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf5be2065/915053ec6b17407b80028c44b9d987f5 [2021-08-26 01:07:35,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 01:07:35,440 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 01:07:35,443 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 01:07:35,443 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 01:07:35,447 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 01:07:35,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:07:35" (1/1) ... [2021-08-26 01:07:35,450 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51141d97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:07:35, skipping insertion in model container [2021-08-26 01:07:35,450 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:07:35" (1/1) ... [2021-08-26 01:07:35,460 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 01:07:35,473 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 01:07:35,570 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/zonotope_loose.c[577,590] [2021-08-26 01:07:35,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:07:35,591 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 01:07:35,614 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/zonotope_loose.c[577,590] [2021-08-26 01:07:35,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:07:35,649 INFO L208 MainTranslator]: Completed translation [2021-08-26 01:07:35,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:07:35 WrapperNode [2021-08-26 01:07:35,649 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 01:07:35,651 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 01:07:35,651 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 01:07:35,651 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 01:07:35,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:07:35" (1/1) ... [2021-08-26 01:07:35,664 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:07:35" (1/1) ... [2021-08-26 01:07:35,678 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 01:07:35,679 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 01:07:35,680 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 01:07:35,680 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 01:07:35,686 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:07:35" (1/1) ... [2021-08-26 01:07:35,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:07:35" (1/1) ... [2021-08-26 01:07:35,701 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:07:35" (1/1) ... [2021-08-26 01:07:35,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:07:35" (1/1) ... [2021-08-26 01:07:35,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:07:35" (1/1) ... [2021-08-26 01:07:35,710 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:07:35" (1/1) ... [2021-08-26 01:07:35,711 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:07:35" (1/1) ... [2021-08-26 01:07:35,714 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 01:07:35,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 01:07:35,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 01:07:35,715 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 01:07:35,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:07:35" (1/1) ... [2021-08-26 01:07:35,721 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:07:35,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 01:07:35,739 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-26 01:07:35,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-26 01:07:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-26 01:07:35,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 01:07:35,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 01:07:35,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 01:07:40,694 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 01:07:40,694 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-26 01:07:40,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:07:40 BoogieIcfgContainer [2021-08-26 01:07:40,696 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 01:07:40,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 01:07:40,697 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 01:07:40,707 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 01:07:40,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 01:07:35" (1/3) ... [2021-08-26 01:07:40,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e4b0104 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:07:40, skipping insertion in model container [2021-08-26 01:07:40,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:07:35" (2/3) ... [2021-08-26 01:07:40,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e4b0104 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:07:40, skipping insertion in model container [2021-08-26 01:07:40,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:07:40" (3/3) ... [2021-08-26 01:07:40,710 INFO L111 eAbstractionObserver]: Analyzing ICFG zonotope_loose.c [2021-08-26 01:07:40,714 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 01:07:40,715 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-26 01:07:40,753 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 01:07:40,759 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-26 01:07:40,760 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-26 01:07:40,771 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:07:40,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-26 01:07:40,776 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:07:40,776 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:07:40,777 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:07:40,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:07:40,782 INFO L82 PathProgramCache]: Analyzing trace with hash 119383821, now seen corresponding path program 1 times [2021-08-26 01:07:40,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 01:07:40,791 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1750893699] [2021-08-26 01:07:40,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:07:40,792 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 01:07:40,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 01:07:40,821 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 01:07:40,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-26 01:07:41,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:07:41,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 1 conjunts are in the unsatisfiable core [2021-08-26 01:07:41,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:07:41,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:07:41,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:07:41,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:07:41,394 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 01:07:41,398 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1750893699] [2021-08-26 01:07:41,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1750893699] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 01:07:41,399 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:07:41,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-26 01:07:41,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005384263] [2021-08-26 01:07:41,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 01:07:41,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 01:07:41,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 01:07:41,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 01:07:41,418 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:07:41,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:07:41,429 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2021-08-26 01:07:41,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 01:07:41,430 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-08-26 01:07:41,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:07:41,436 INFO L225 Difference]: With dead ends: 23 [2021-08-26 01:07:41,436 INFO L226 Difference]: Without dead ends: 9 [2021-08-26 01:07:41,438 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 01:07:41,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-08-26 01:07:41,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-08-26 01:07:41,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:07:41,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-08-26 01:07:41,461 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 8 [2021-08-26 01:07:41,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:07:41,461 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-08-26 01:07:41,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:07:41,462 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-08-26 01:07:41,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-26 01:07:41,462 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:07:41,462 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:07:41,486 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-26 01:07:41,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 01:07:41,677 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:07:41,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:07:41,678 INFO L82 PathProgramCache]: Analyzing trace with hash 176642123, now seen corresponding path program 1 times [2021-08-26 01:07:41,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 01:07:41,679 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [734099745] [2021-08-26 01:07:41,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:07:41,679 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 01:07:41,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 01:07:41,683 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 01:07:41,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-26 01:07:42,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:07:42,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-26 01:07:42,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:07:52,023 WARN L838 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (and (= c_ULTIMATE.start_main_~y~0 (fp.div c_currentRoundingMode ULTIMATE.start_main_~x~0 .cse0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 .cse0))))) is different from false [2021-08-26 01:09:05,447 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (let ((.cse0 (fp.leq (fp.div roundNearestTiesToEven ULTIMATE.start_main_~x~0 .cse1) ((_ to_fp 11 53) roundNearestTiesToEven 105.0)))) (or (and (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)) (not .cse0)) (and .cse0 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))))) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 .cse1)))) is different from true [2021-08-26 01:09:20,515 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.leq (fp.div roundNearestTiesToEven ULTIMATE.start_main_~x~0 .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 .cse0)))) is different from false [2021-08-26 01:09:22,602 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.leq (fp.div roundNearestTiesToEven ULTIMATE.start_main_~x~0 .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 .cse0)))) is different from true [2021-08-26 01:09:22,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:09:22,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:09:31,892 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)))) (and (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq .cse0 (_ +zero 11 53)))) is different from false [2021-08-26 01:09:34,014 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)))) (and (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq .cse0 (_ +zero 11 53)))) is different from true [2021-08-26 01:09:57,002 WARN L838 $PredicateComparison]: unable to prove that (or (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32)) (let ((.cse0 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)))) (and (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq .cse0 (_ +zero 11 53))))) is different from false [2021-08-26 01:09:59,123 WARN L860 $PredicateComparison]: unable to prove that (or (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32)) (let ((.cse0 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)))) (and (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq .cse0 (_ +zero 11 53))))) is different from true [2021-08-26 01:10:39,696 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~x~0_9 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (not (fp.leq v_ULTIMATE.start_main_~x~0_9 .cse0)) (fp.leq (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~x~0_9 .cse0) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq v_ULTIMATE.start_main_~x~0_9 (_ +zero 11 53)))))) is different from false [2021-08-26 01:10:41,819 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~x~0_9 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (not (fp.leq v_ULTIMATE.start_main_~x~0_9 .cse0)) (fp.leq (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~x~0_9 .cse0) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq v_ULTIMATE.start_main_~x~0_9 (_ +zero 11 53)))))) is different from true [2021-08-26 01:10:41,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:10:41,820 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 01:10:41,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [734099745] [2021-08-26 01:10:41,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [734099745] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 01:10:41,821 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:10:41,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 12 [2021-08-26 01:10:41,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638479106] [2021-08-26 01:10:41,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-08-26 01:10:41,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 01:10:41,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-26 01:10:41,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=10, NotChecked=90, Total=156 [2021-08-26 01:10:41,824 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:10:43,945 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~x~0_9 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (not (fp.leq v_ULTIMATE.start_main_~x~0_9 .cse0)) (fp.leq (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~x~0_9 .cse0) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq v_ULTIMATE.start_main_~x~0_9 (_ +zero 11 53)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-08-26 01:10:46,074 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~x~0_9 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (not (fp.leq v_ULTIMATE.start_main_~x~0_9 .cse0)) (fp.leq (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~x~0_9 .cse0) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq v_ULTIMATE.start_main_~x~0_9 (_ +zero 11 53)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-08-26 01:10:48,205 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32))) (.cse3 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (and (let ((.cse0 (fp.geq c_ULTIMATE.start_main_~x~0 (_ +zero 11 53))) (.cse1 (fp.leq c_ULTIMATE.start_main_~x~0 .cse3))) (or (and (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32)) .cse0 .cse1) (and (or (not .cse0) (not .cse1)) .cse2))) (or .cse2 (let ((.cse4 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~x~0 .cse3))) (and (fp.leq .cse4 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq .cse4 (_ +zero 11 53))))) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2021-08-26 01:10:50,332 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse2 (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32))) (.cse3 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (and (let ((.cse0 (fp.geq c_ULTIMATE.start_main_~x~0 (_ +zero 11 53))) (.cse1 (fp.leq c_ULTIMATE.start_main_~x~0 .cse3))) (or (and (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32)) .cse0 .cse1) (and (or (not .cse0) (not .cse1)) .cse2))) (or .cse2 (let ((.cse4 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~x~0 .cse3))) (and (fp.leq .cse4 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq .cse4 (_ +zero 11 53))))) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2021-08-26 01:10:52,457 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (let ((.cse0 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~x~0 .cse1))) (and (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq .cse0 (_ +zero 11 53)) (fp.geq c_ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq c_ULTIMATE.start_main_~x~0 .cse1) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from false [2021-08-26 01:10:54,579 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (let ((.cse0 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~x~0 .cse1))) (and (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq .cse0 (_ +zero 11 53)) (fp.geq c_ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq c_ULTIMATE.start_main_~x~0 .cse1) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from true [2021-08-26 01:10:56,703 WARN L838 $PredicateComparison]: unable to prove that (and (fp.leq c_ULTIMATE.start_main_~y~0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq c_ULTIMATE.start_main_~y~0 (_ +zero 11 53)) (= c_currentRoundingMode roundNearestTiesToEven) (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (and (= c_ULTIMATE.start_main_~y~0 (fp.div c_currentRoundingMode ULTIMATE.start_main_~x~0 .cse0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 .cse0))))) is different from false [2021-08-26 01:11:05,463 WARN L207 SmtUtils]: Spent 5.55 s on a formula simplification that was a NOOP. DAG size: 24 [2021-08-26 01:11:05,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:11:05,487 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2021-08-26 01:11:05,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-26 01:11:05,488 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-08-26 01:11:05,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:11:05,489 INFO L225 Difference]: With dead ends: 13 [2021-08-26 01:11:05,489 INFO L226 Difference]: Without dead ends: 9 [2021-08-26 01:11:05,490 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 46769.9ms TimeCoverageRelationStatistics Valid=36, Invalid=42, Unknown=18, NotChecked=210, Total=306 [2021-08-26 01:11:05,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-08-26 01:11:05,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-08-26 01:11:05,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:11:05,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2021-08-26 01:11:05,492 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2021-08-26 01:11:05,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:11:05,492 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2021-08-26 01:11:05,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:11:05,492 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2021-08-26 01:11:05,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-26 01:11:05,493 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:11:05,493 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:11:05,512 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-26 01:11:05,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 01:11:05,700 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:11:05,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:11:05,703 INFO L82 PathProgramCache]: Analyzing trace with hash 176701705, now seen corresponding path program 1 times [2021-08-26 01:11:05,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 01:11:05,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [991264675] [2021-08-26 01:11:05,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:11:05,707 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 01:11:05,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 01:11:05,708 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 01:11:05,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-26 01:11:06,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:11:06,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-26 01:11:06,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:11:43,013 WARN L207 SmtUtils]: Spent 11.51 s on a formula simplification that was a NOOP. DAG size: 14 [2021-08-26 01:11:59,980 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.geq (fp.sub c_currentRoundingMode .cse0 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (= c_ULTIMATE.start_main_~y~0 (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-08-26 01:13:49,978 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (let ((.cse0 (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)))) (or (and (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)) (not (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 105.0)))) (and (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32)) (fp.geq .cse0 (_ +zero 11 53))))) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))))) is different from false [2021-08-26 01:13:52,023 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (let ((.cse0 (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)))) (or (and (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)) (not (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 105.0)))) (and (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32)) (fp.geq .cse0 (_ +zero 11 53))))) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))))) is different from true [2021-08-26 01:14:12,808 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))))) is different from false [2021-08-26 01:14:14,852 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))))) is different from true [2021-08-26 01:14:14,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:14:14,854 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:14:58,941 WARN L207 SmtUtils]: Spent 12.05 s on a formula simplification that was a NOOP. DAG size: 14 [2021-08-26 01:15:07,222 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~x~0))) (or (fp.geq (fp.sub c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)))) is different from false [2021-08-26 01:15:23,293 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~x~0))) (or (fp.geq (fp.sub c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32)))) is different from true [2021-08-26 01:15:42,104 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~x~0_10 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~x~0_10))) (or (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq v_ULTIMATE.start_main_~x~0_10 (_ +zero 11 53))) (fp.geq (fp.sub c_currentRoundingMode .cse0 v_ULTIMATE.start_main_~x~0_10) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (not (fp.leq v_ULTIMATE.start_main_~x~0_10 ((_ to_fp 11 53) c_currentRoundingMode 10.0)))))) is different from false [2021-08-26 01:15:44,162 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~x~0_10 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~x~0_10))) (or (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq v_ULTIMATE.start_main_~x~0_10 (_ +zero 11 53))) (fp.geq (fp.sub c_currentRoundingMode .cse0 v_ULTIMATE.start_main_~x~0_10) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (not (fp.leq v_ULTIMATE.start_main_~x~0_10 ((_ to_fp 11 53) c_currentRoundingMode 10.0)))))) is different from true [2021-08-26 01:15:44,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:15:44,163 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 01:15:44,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [991264675] [2021-08-26 01:15:44,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [991264675] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 01:15:44,163 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:15:44,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 14 [2021-08-26 01:15:44,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463196233] [2021-08-26 01:15:44,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-26 01:15:44,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 01:15:44,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-26 01:15:44,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=43, Unknown=21, NotChecked=114, Total=210 [2021-08-26 01:15:44,165 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand has 15 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:15:50,432 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~x~0_10 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~x~0_10))) (or (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq v_ULTIMATE.start_main_~x~0_10 (_ +zero 11 53))) (fp.geq (fp.sub c_currentRoundingMode .cse0 v_ULTIMATE.start_main_~x~0_10) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (not (fp.leq v_ULTIMATE.start_main_~x~0_10 ((_ to_fp 11 53) c_currentRoundingMode 10.0)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-08-26 01:15:52,488 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~x~0_10 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~x~0_10))) (or (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq v_ULTIMATE.start_main_~x~0_10 (_ +zero 11 53))) (fp.geq (fp.sub c_currentRoundingMode .cse0 v_ULTIMATE.start_main_~x~0_10) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (not (fp.leq v_ULTIMATE.start_main_~x~0_10 ((_ to_fp 11 53) c_currentRoundingMode 10.0)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-08-26 01:15:54,548 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32)))) (and (let ((.cse0 (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~x~0))) (or (fp.geq (fp.sub c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) .cse1)) (let ((.cse2 (fp.geq c_ULTIMATE.start_main_~x~0 (_ +zero 11 53))) (.cse3 (fp.leq c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)))) (or (and (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32)) .cse2 .cse3) (and (or (not .cse2) (not .cse3)) .cse1))) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2021-08-26 01:15:56,951 WARN L838 $PredicateComparison]: unable to prove that (and (let ((.cse0 (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~x~0))) (or (fp.geq (fp.sub c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)))) (fp.geq c_ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-08-26 01:15:59,013 WARN L860 $PredicateComparison]: unable to prove that (and (let ((.cse0 (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~x~0))) (or (fp.geq (fp.sub c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)))) (fp.geq c_ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-08-26 01:16:01,086 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~x~0))) (and (= c_ULTIMATE.start_main_~y~0 (fp.sub c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0)) (or (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq c_ULTIMATE.start_main_~y~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (fp.geq c_ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2021-08-26 01:16:03,138 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~x~0))) (and (= c_ULTIMATE.start_main_~y~0 (fp.sub c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0)) (or (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq c_ULTIMATE.start_main_~y~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (fp.geq c_ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2021-08-26 01:16:05,196 WARN L838 $PredicateComparison]: unable to prove that (and (fp.leq c_ULTIMATE.start_main_~y~0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq c_ULTIMATE.start_main_~y~0 (_ +zero 11 53)) (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.geq (fp.sub c_currentRoundingMode .cse0 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (= c_ULTIMATE.start_main_~y~0 (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-08-26 01:16:07,269 WARN L838 $PredicateComparison]: unable to prove that (and (not (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (let ((.cse0 (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)))) (or (and (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)) (not (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 105.0)))) (and (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32)) (fp.geq .cse0 (_ +zero 11 53))))) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)))))) is different from false [2021-08-26 01:16:07,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:16:07,275 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2021-08-26 01:16:07,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-26 01:16:07,275 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-08-26 01:16:07,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:16:07,275 INFO L225 Difference]: With dead ends: 9 [2021-08-26 01:16:07,275 INFO L226 Difference]: Without dead ends: 0 [2021-08-26 01:16:07,276 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 12 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 96049.0ms TimeCoverageRelationStatistics Valid=44, Invalid=46, Unknown=30, NotChecked=300, Total=420 [2021-08-26 01:16:07,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-26 01:16:07,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-26 01:16:07,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:16:07,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-26 01:16:07,277 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2021-08-26 01:16:07,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:16:07,277 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-26 01:16:07,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:16:07,277 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-26 01:16:07,277 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-26 01:16:07,279 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 01:16:07,296 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-26 01:16:07,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 01:16:07,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-26 01:16:07,489 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:16:07,513 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:16:07,518 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-26 01:16:07,518 INFO L857 garLoopResultBuilder]: For program point L11(lines 11 13) no Hoare annotation was computed. [2021-08-26 01:16:07,518 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-26 01:16:07,518 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-26 01:16:07,518 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-26 01:16:07,519 INFO L860 garLoopResultBuilder]: At program point L28(lines 16 29) the Hoare annotation is: true [2021-08-26 01:16:07,519 INFO L857 garLoopResultBuilder]: For program point L24(lines 24 25) no Hoare annotation was computed. [2021-08-26 01:16:07,519 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-08-26 01:16:07,519 INFO L857 garLoopResultBuilder]: For program point L24-2(lines 24 25) no Hoare annotation was computed. [2021-08-26 01:16:07,519 INFO L857 garLoopResultBuilder]: For program point L14(line 14) no Hoare annotation was computed. [2021-08-26 01:16:07,519 INFO L857 garLoopResultBuilder]: For program point L14-1(line 14) no Hoare annotation was computed. [2021-08-26 01:16:07,520 INFO L857 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2021-08-26 01:16:07,520 INFO L860 garLoopResultBuilder]: At program point L14-3(line 14) the Hoare annotation is: true [2021-08-26 01:16:07,524 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 01:16:07,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 01:16:07 BoogieIcfgContainer [2021-08-26 01:16:07,529 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 01:16:07,530 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 01:16:07,530 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 01:16:07,530 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 01:16:07,531 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:07:40" (3/4) ... [2021-08-26 01:16:07,534 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-26 01:16:07,542 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-08-26 01:16:07,542 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-26 01:16:07,542 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-08-26 01:16:07,542 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 01:16:07,574 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-26 01:16:07,574 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 01:16:07,575 INFO L168 Benchmark]: Toolchain (without parser) took 512134.63 ms. Allocated memory was 60.8 MB in the beginning and 79.7 MB in the end (delta: 18.9 MB). Free memory was 40.1 MB in the beginning and 33.7 MB in the end (delta: 6.3 MB). Peak memory consumption was 24.7 MB. Max. memory is 16.1 GB. [2021-08-26 01:16:07,575 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 60.8 MB. Free memory was 43.0 MB in the beginning and 42.9 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:16:07,576 INFO L168 Benchmark]: CACSL2BoogieTranslator took 206.67 ms. Allocated memory is still 60.8 MB. Free memory was 39.9 MB in the beginning and 44.1 MB in the end (delta: -4.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-26 01:16:07,576 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.05 ms. Allocated memory is still 60.8 MB. Free memory was 43.9 MB in the beginning and 42.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:16:07,577 INFO L168 Benchmark]: Boogie Preprocessor took 34.33 ms. Allocated memory is still 60.8 MB. Free memory was 42.6 MB in the beginning and 41.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:16:07,577 INFO L168 Benchmark]: RCFGBuilder took 4981.31 ms. Allocated memory is still 60.8 MB. Free memory was 41.4 MB in the beginning and 29.4 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-26 01:16:07,577 INFO L168 Benchmark]: TraceAbstraction took 506832.06 ms. Allocated memory was 60.8 MB in the beginning and 79.7 MB in the end (delta: 18.9 MB). Free memory was 28.8 MB in the beginning and 35.8 MB in the end (delta: -7.0 MB). Peak memory consumption was 15.3 MB. Max. memory is 16.1 GB. [2021-08-26 01:16:07,578 INFO L168 Benchmark]: Witness Printer took 44.17 ms. Allocated memory is still 79.7 MB. Free memory was 35.8 MB in the beginning and 33.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 01:16:07,579 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 60.8 MB. Free memory was 43.0 MB in the beginning and 42.9 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 206.67 ms. Allocated memory is still 60.8 MB. Free memory was 39.9 MB in the beginning and 44.1 MB in the end (delta: -4.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 28.05 ms. Allocated memory is still 60.8 MB. Free memory was 43.9 MB in the beginning and 42.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.33 ms. Allocated memory is still 60.8 MB. Free memory was 42.6 MB in the beginning and 41.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 4981.31 ms. Allocated memory is still 60.8 MB. Free memory was 41.4 MB in the beginning and 29.4 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 506832.06 ms. Allocated memory was 60.8 MB in the beginning and 79.7 MB in the end (delta: 18.9 MB). Free memory was 28.8 MB in the beginning and 35.8 MB in the end (delta: -7.0 MB). Peak memory consumption was 15.3 MB. Max. memory is 16.1 GB. * Witness Printer took 44.17 ms. Allocated memory is still 79.7 MB. Free memory was 35.8 MB in the beginning and 33.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 506772.0ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 8.5ms, AutomataDifference: 46810.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 32.2ms, InitialAbstractionConstructionTime: 7.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 18 SDtfs, 0 SDslu, 9 SDs, 0 SdLazy, 9 SolverSat, 0 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 4063.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 22 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 142819.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 13.4ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 25.8ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 2.1ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 44.0ms SsaConstructionTime, 1063.0ms SatisfiabilityAnalysisTime, 457902.7ms InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 42 ConstructedInterpolants, 8 QuantifiedInterpolants, 572 SizeOfPredicates, 14 NumberOfNonLiveVariables, 99 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-08-26 01:16:07,792 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...