./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/cast_float_ptr.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/cast_float_ptr.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 617eaa0242fb4a2f0fbdac83184f4c0ff716c3b2 ........................................................................................................................................................................................................................................................... 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/cast_float_ptr.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 617eaa0242fb4a2f0fbdac83184f4c0ff716c3b2 ...................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 00:11:12,252 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 00:11:12,253 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 00:11:12,279 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 00:11:12,282 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 00:11:12,285 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 00:11:12,287 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 00:11:12,292 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 00:11:12,294 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 00:11:12,297 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 00:11:12,298 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 00:11:12,301 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 00:11:12,301 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 00:11:12,303 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 00:11:12,305 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 00:11:12,307 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 00:11:12,307 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 00:11:12,308 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 00:11:12,312 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 00:11:12,316 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 00:11:12,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 00:11:12,318 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 00:11:12,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 00:11:12,320 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 00:11:12,325 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 00:11:12,326 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 00:11:12,327 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 00:11:12,327 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 00:11:12,328 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 00:11:12,329 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 00:11:12,329 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 00:11:12,330 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 00:11:12,331 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 00:11:12,331 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 00:11:12,332 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 00:11:12,333 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 00:11:12,333 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 00:11:12,333 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 00:11:12,333 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 00:11:12,334 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 00:11:12,335 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 00:11:12,338 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 00:11:12,371 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 00:11:12,371 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 00:11:12,372 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 00:11:12,372 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 00:11:12,373 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 00:11:12,373 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 00:11:12,374 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 00:11:12,374 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 00:11:12,374 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 00:11:12,374 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 00:11:12,375 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 00:11:12,375 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 00:11:12,375 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 00:11:12,375 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 00:11:12,375 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 00:11:12,376 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 00:11:12,376 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 00:11:12,376 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 00:11:12,376 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 00:11:12,376 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 00:11:12,381 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 00:11:12,381 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 00:11:12,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 00:11:12,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 00:11:12,381 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 00:11:12,381 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 00:11:12,381 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 00:11:12,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 00:11:12,381 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 00:11:12,381 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 00:11:12,382 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 617eaa0242fb4a2f0fbdac83184f4c0ff716c3b2 [2021-08-26 00:11:12,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 00:11:12,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 00:11:12,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 00:11:12,648 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 00:11:12,648 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 00:11:12,649 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/cast_float_ptr.c [2021-08-26 00:11:12,695 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3625c0ed6/89d15fe24c1b47afad68ca4f1ec2c7c0/FLAG40d9bb5dc [2021-08-26 00:11:13,055 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 00:11:13,056 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cast_float_ptr.c [2021-08-26 00:11:13,060 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3625c0ed6/89d15fe24c1b47afad68ca4f1ec2c7c0/FLAG40d9bb5dc [2021-08-26 00:11:13,475 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3625c0ed6/89d15fe24c1b47afad68ca4f1ec2c7c0 [2021-08-26 00:11:13,477 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 00:11:13,478 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 00:11:13,479 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 00:11:13,479 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 00:11:13,486 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 00:11:13,487 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 12:11:13" (1/1) ... [2021-08-26 00:11:13,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6daebc13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:11:13, skipping insertion in model container [2021-08-26 00:11:13,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 12:11:13" (1/1) ... [2021-08-26 00:11:13,493 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 00:11:13,503 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 00:11:13,580 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/cast_float_ptr.c[362,375] [2021-08-26 00:11:13,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 00:11:13,597 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 00:11:13,605 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/cast_float_ptr.c[362,375] [2021-08-26 00:11:13,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 00:11:13,618 INFO L208 MainTranslator]: Completed translation [2021-08-26 00:11:13,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:11:13 WrapperNode [2021-08-26 00:11:13,619 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 00:11:13,620 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 00:11:13,620 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 00:11:13,620 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 00:11:13,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:11:13" (1/1) ... [2021-08-26 00:11:13,641 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:11:13" (1/1) ... [2021-08-26 00:11:13,676 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 00:11:13,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 00:11:13,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 00:11:13,677 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 00:11:13,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:11:13" (1/1) ... [2021-08-26 00:11:13,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:11:13" (1/1) ... [2021-08-26 00:11:13,696 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:11:13" (1/1) ... [2021-08-26 00:11:13,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:11:13" (1/1) ... [2021-08-26 00:11:13,705 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:11:13" (1/1) ... [2021-08-26 00:11:13,707 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:11:13" (1/1) ... [2021-08-26 00:11:13,708 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:11:13" (1/1) ... [2021-08-26 00:11:13,711 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 00:11:13,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 00:11:13,712 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 00:11:13,712 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 00:11:13,713 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:11:13" (1/1) ... [2021-08-26 00:11:13,717 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 00:11:13,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 00:11:13,730 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 00:11:13,747 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 00:11:13,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 00:11:13,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 00:11:13,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-08-26 00:11:13,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-26 00:11:13,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-08-26 00:11:13,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 00:11:13,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 00:11:13,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-26 00:11:13,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-26 00:11:13,984 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 00:11:13,999 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-26 00:11:14,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:11:14 BoogieIcfgContainer [2021-08-26 00:11:14,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 00:11:14,002 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 00:11:14,002 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 00:11:14,004 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 00:11:14,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 12:11:13" (1/3) ... [2021-08-26 00:11:14,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34cac42b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 12:11:14, skipping insertion in model container [2021-08-26 00:11:14,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:11:13" (2/3) ... [2021-08-26 00:11:14,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34cac42b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 12:11:14, skipping insertion in model container [2021-08-26 00:11:14,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:11:14" (3/3) ... [2021-08-26 00:11:14,006 INFO L111 eAbstractionObserver]: Analyzing ICFG cast_float_ptr.c [2021-08-26 00:11:14,009 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 00:11:14,009 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-26 00:11:14,065 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 00:11:14,070 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 00:11:14,070 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-26 00:11:14,079 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 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 00:11:14,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-08-26 00:11:14,083 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 00:11:14,083 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 00:11:14,084 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 00:11:14,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 00:11:14,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1271567759, now seen corresponding path program 1 times [2021-08-26 00:11:14,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 00:11:14,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716958375] [2021-08-26 00:11:14,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 00:11:14,102 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 00:11:14,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 00:11:14,221 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-26 00:11:14,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 00:11:14,276 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-26 00:11:14,278 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-26 00:11:14,279 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:11:14,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 00:11:14,284 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 00:11:14,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 12:11:14 BoogieIcfgContainer [2021-08-26 00:11:14,301 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 00:11:14,303 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 00:11:14,303 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 00:11:14,303 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 00:11:14,304 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:11:14" (3/4) ... [2021-08-26 00:11:14,306 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-26 00:11:14,306 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 00:11:14,308 INFO L168 Benchmark]: Toolchain (without parser) took 828.22 ms. Allocated memory is still 62.9 MB. Free memory was 43.0 MB in the beginning and 31.3 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. [2021-08-26 00:11:14,309 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 62.9 MB. Free memory was 44.2 MB in the beginning and 44.1 MB in the end (delta: 83.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:11:14,309 INFO L168 Benchmark]: CACSL2BoogieTranslator took 140.01 ms. Allocated memory is still 62.9 MB. Free memory was 42.8 MB in the beginning and 33.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-08-26 00:11:14,310 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.12 ms. Allocated memory is still 62.9 MB. Free memory was 33.1 MB in the beginning and 45.6 MB in the end (delta: -12.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-08-26 00:11:14,311 INFO L168 Benchmark]: Boogie Preprocessor took 34.71 ms. Allocated memory is still 62.9 MB. Free memory was 45.6 MB in the beginning and 44.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:11:14,312 INFO L168 Benchmark]: RCFGBuilder took 288.83 ms. Allocated memory is still 62.9 MB. Free memory was 44.1 MB in the beginning and 28.4 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-08-26 00:11:14,313 INFO L168 Benchmark]: TraceAbstraction took 299.31 ms. Allocated memory is still 62.9 MB. Free memory was 28.1 MB in the beginning and 31.9 MB in the end (delta: -3.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:11:14,317 INFO L168 Benchmark]: Witness Printer took 3.09 ms. Allocated memory is still 62.9 MB. Free memory was 31.6 MB in the beginning and 31.3 MB in the end (delta: 304.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:11:14,320 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 62.9 MB. Free memory was 44.2 MB in the beginning and 44.1 MB in the end (delta: 83.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 140.01 ms. Allocated memory is still 62.9 MB. Free memory was 42.8 MB in the beginning and 33.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.12 ms. Allocated memory is still 62.9 MB. Free memory was 33.1 MB in the beginning and 45.6 MB in the end (delta: -12.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.71 ms. Allocated memory is still 62.9 MB. Free memory was 45.6 MB in the beginning and 44.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 288.83 ms. Allocated memory is still 62.9 MB. Free memory was 44.1 MB in the beginning and 28.4 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 299.31 ms. Allocated memory is still 62.9 MB. Free memory was 28.1 MB in the beginning and 31.9 MB in the end (delta: -3.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 3.09 ms. Allocated memory is still 62.9 MB. Free memory was 31.6 MB in the beginning and 31.3 MB in the end (delta: 304.2 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: 5]: 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 25, overapproximation of bitwiseAnd at line 13. Possible FailurePath: [L34] double a; [L35] float r; [L37] a = __VERIFIER_nondet_double() [L10] double dmax; [L11] float f; [L13] EXPR \read(d) [L13] COND FALSE !((((*(unsigned*)&d) & 0x7FF00000) >> 20) == 2047) [L15] ((unsigned*)&dmax)[0] = 0x47efffff [L16] ((unsigned*)&dmax)[1] = 0xe0000000 [L18] EXPR \read(d) [L18] EXPR \read(dmax) [L18] COND FALSE !(d > dmax) [L21] EXPR \read(d) [L21] EXPR \read(dmax) [L21] COND FALSE !(-d > dmax) [L25] EXPR \read(d) [L25] d >= -3.41e38 && d <= 3.41e38 [L25] EXPR \read(d) [L25] d >= -3.41e38 && d <= 3.41e38 [L5] COND TRUE !(cond) [L5] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 219.2ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 5.7ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 7.8ms SsaConstructionTime, 66.6ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-26 00:11:14,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 00:11:15,921 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 00:11:15,923 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 00:11:15,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 00:11:15,953 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 00:11:15,956 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 00:11:15,959 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 00:11:15,963 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 00:11:15,965 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 00:11:15,970 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 00:11:15,971 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 00:11:15,974 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 00:11:15,975 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 00:11:15,977 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 00:11:15,979 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 00:11:15,980 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 00:11:15,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 00:11:15,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 00:11:15,986 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 00:11:15,988 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 00:11:15,991 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 00:11:15,992 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 00:11:15,994 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 00:11:15,995 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 00:11:15,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 00:11:15,998 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 00:11:15,999 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 00:11:16,000 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 00:11:16,000 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 00:11:16,001 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 00:11:16,002 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 00:11:16,002 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 00:11:16,003 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 00:11:16,004 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 00:11:16,005 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 00:11:16,005 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 00:11:16,005 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 00:11:16,006 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 00:11:16,006 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 00:11:16,007 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 00:11:16,007 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 00:11:16,008 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-26 00:11:16,040 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 00:11:16,040 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 00:11:16,041 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 00:11:16,041 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 00:11:16,042 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 00:11:16,042 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 00:11:16,043 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 00:11:16,043 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 00:11:16,043 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 00:11:16,043 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 00:11:16,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 00:11:16,044 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 00:11:16,044 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 00:11:16,044 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 00:11:16,044 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-26 00:11:16,044 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-26 00:11:16,044 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 00:11:16,045 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 00:11:16,045 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 00:11:16,045 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 00:11:16,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 00:11:16,045 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 00:11:16,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 00:11:16,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 00:11:16,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 00:11:16,046 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 00:11:16,046 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 00:11:16,046 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-26 00:11:16,046 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-26 00:11:16,046 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 00:11:16,046 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 00:11:16,047 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-26 00:11:16,047 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 617eaa0242fb4a2f0fbdac83184f4c0ff716c3b2 [2021-08-26 00:11:16,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 00:11:16,350 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 00:11:16,353 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 00:11:16,354 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 00:11:16,354 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 00:11:16,355 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/cast_float_ptr.c [2021-08-26 00:11:16,405 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3a88c787/6f69fe57393e43d5a64d165e02219f41/FLAGbd9c1f72c [2021-08-26 00:11:16,728 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 00:11:16,729 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cast_float_ptr.c [2021-08-26 00:11:16,734 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3a88c787/6f69fe57393e43d5a64d165e02219f41/FLAGbd9c1f72c [2021-08-26 00:11:17,163 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3a88c787/6f69fe57393e43d5a64d165e02219f41 [2021-08-26 00:11:17,166 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 00:11:17,168 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 00:11:17,169 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 00:11:17,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 00:11:17,172 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 00:11:17,172 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 12:11:17" (1/1) ... [2021-08-26 00:11:17,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ce15f16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:11:17, skipping insertion in model container [2021-08-26 00:11:17,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 12:11:17" (1/1) ... [2021-08-26 00:11:17,179 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 00:11:17,191 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 00:11:17,273 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/cast_float_ptr.c[362,375] [2021-08-26 00:11:17,283 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 00:11:17,292 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 00:11:17,300 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/cast_float_ptr.c[362,375] [2021-08-26 00:11:17,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 00:11:17,317 INFO L208 MainTranslator]: Completed translation [2021-08-26 00:11:17,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:11:17 WrapperNode [2021-08-26 00:11:17,317 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 00:11:17,318 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 00:11:17,318 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 00:11:17,319 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 00:11:17,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:11:17" (1/1) ... [2021-08-26 00:11:17,360 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:11:17" (1/1) ... [2021-08-26 00:11:17,377 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 00:11:17,379 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 00:11:17,380 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 00:11:17,380 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 00:11:17,385 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:11:17" (1/1) ... [2021-08-26 00:11:17,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:11:17" (1/1) ... [2021-08-26 00:11:17,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:11:17" (1/1) ... [2021-08-26 00:11:17,394 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:11:17" (1/1) ... [2021-08-26 00:11:17,417 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:11:17" (1/1) ... [2021-08-26 00:11:17,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:11:17" (1/1) ... [2021-08-26 00:11:17,419 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:11:17" (1/1) ... [2021-08-26 00:11:17,421 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 00:11:17,422 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 00:11:17,422 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 00:11:17,422 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 00:11:17,423 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:11:17" (1/1) ... [2021-08-26 00:11:17,437 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 00:11:17,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 00:11:17,454 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 00:11:17,476 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 00:11:17,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-08-26 00:11:17,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-08-26 00:11:17,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-26 00:11:17,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 00:11:17,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-08-26 00:11:17,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-26 00:11:17,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 00:11:17,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 00:11:17,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-08-26 00:11:17,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-26 00:11:17,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-26 00:11:17,847 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 00:11:17,847 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-26 00:11:17,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:11:17 BoogieIcfgContainer [2021-08-26 00:11:17,848 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 00:11:17,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 00:11:17,851 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 00:11:17,853 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 00:11:17,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 12:11:17" (1/3) ... [2021-08-26 00:11:17,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7efde1e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 12:11:17, skipping insertion in model container [2021-08-26 00:11:17,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:11:17" (2/3) ... [2021-08-26 00:11:17,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7efde1e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 12:11:17, skipping insertion in model container [2021-08-26 00:11:17,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:11:17" (3/3) ... [2021-08-26 00:11:17,857 INFO L111 eAbstractionObserver]: Analyzing ICFG cast_float_ptr.c [2021-08-26 00:11:17,861 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 00:11:17,861 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-26 00:11:17,904 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 00:11:17,910 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 00:11:17,911 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-26 00:11:17,923 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 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 00:11:17,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-08-26 00:11:17,932 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 00:11:17,932 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 00:11:17,933 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 00:11:17,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 00:11:17,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1271567759, now seen corresponding path program 1 times [2021-08-26 00:11:17,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 00:11:17,948 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1101772797] [2021-08-26 00:11:17,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 00:11:17,949 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 00:11:17,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 00:11:17,952 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 00:11:17,976 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 00:11:18,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 00:11:18,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 13 conjunts are in the unsatisfiable core [2021-08-26 00:11:18,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 00:11:18,213 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-08-26 00:11:18,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 62 [2021-08-26 00:11:18,688 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 00:11:18,689 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 00:11:19,110 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-08-26 00:11:19,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 3017 treesize of output 1 [2021-08-26 00:11:19,116 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 00:11:19,116 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 00:11:19,117 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1101772797] [2021-08-26 00:11:19,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1101772797] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 00:11:19,117 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 00:11:19,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 7] imperfect sequences [] total 11 [2021-08-26 00:11:19,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948897099] [2021-08-26 00:11:19,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-26 00:11:19,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 00:11:19,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-26 00:11:19,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-08-26 00:11:19,133 INFO L87 Difference]: Start difference. First operand has 16 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 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 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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 00:11:20,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 00:11:20,436 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2021-08-26 00:11:20,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-26 00:11:20,438 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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 9 [2021-08-26 00:11:20,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 00:11:20,443 INFO L225 Difference]: With dead ends: 32 [2021-08-26 00:11:20,443 INFO L226 Difference]: Without dead ends: 10 [2021-08-26 00:11:20,445 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 585.1ms TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2021-08-26 00:11:20,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-08-26 00:11:20,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-08-26 00:11:20,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.0) internal successors, (9), 9 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 00:11:20,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2021-08-26 00:11:20,463 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 9 [2021-08-26 00:11:20,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 00:11:20,463 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2021-08-26 00:11:20,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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 00:11:20,464 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2021-08-26 00:11:20,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-08-26 00:11:20,465 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 00:11:20,465 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 00:11:20,478 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 00:11:20,665 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 00:11:20,666 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 00:11:20,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 00:11:20,666 INFO L82 PathProgramCache]: Analyzing trace with hash 1271627341, now seen corresponding path program 1 times [2021-08-26 00:11:20,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 00:11:20,667 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [857118011] [2021-08-26 00:11:20,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 00:11:20,667 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 00:11:20,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 00:11:20,670 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 00:11:20,678 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 00:11:20,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 00:11:20,777 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-26 00:11:20,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 00:11:20,873 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-08-26 00:11:20,874 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-26 00:11:20,875 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:11:20,903 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 00:11:21,076 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 00:11:21,081 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 00:11:21,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 12:11:21 BoogieIcfgContainer [2021-08-26 00:11:21,096 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 00:11:21,096 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 00:11:21,096 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 00:11:21,096 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 00:11:21,097 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:11:17" (3/4) ... [2021-08-26 00:11:21,099 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-26 00:11:21,143 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-26 00:11:21,143 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 00:11:21,144 INFO L168 Benchmark]: Toolchain (without parser) took 3976.28 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 38.1 MB in the beginning and 47.0 MB in the end (delta: -8.9 MB). Peak memory consumption was 1.8 MB. Max. memory is 16.1 GB. [2021-08-26 00:11:21,145 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 58.7 MB. Free memory was 41.0 MB in the beginning and 40.9 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:11:21,146 INFO L168 Benchmark]: CACSL2BoogieTranslator took 148.88 ms. Allocated memory is still 58.7 MB. Free memory was 37.9 MB in the beginning and 27.6 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-26 00:11:21,146 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.51 ms. Allocated memory is still 58.7 MB. Free memory was 27.5 MB in the beginning and 41.9 MB in the end (delta: -14.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-26 00:11:21,147 INFO L168 Benchmark]: Boogie Preprocessor took 41.83 ms. Allocated memory is still 58.7 MB. Free memory was 41.9 MB in the beginning and 40.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 00:11:21,150 INFO L168 Benchmark]: RCFGBuilder took 426.70 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 40.5 MB in the beginning and 50.8 MB in the end (delta: -10.3 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. [2021-08-26 00:11:21,150 INFO L168 Benchmark]: TraceAbstraction took 3245.40 ms. Allocated memory is still 71.3 MB. Free memory was 50.5 MB in the beginning and 49.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 16.1 GB. [2021-08-26 00:11:21,150 INFO L168 Benchmark]: Witness Printer took 47.52 ms. Allocated memory is still 71.3 MB. Free memory was 49.1 MB in the beginning and 47.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 00:11:21,154 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 58.7 MB. Free memory was 41.0 MB in the beginning and 40.9 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 148.88 ms. Allocated memory is still 58.7 MB. Free memory was 37.9 MB in the beginning and 27.6 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 60.51 ms. Allocated memory is still 58.7 MB. Free memory was 27.5 MB in the beginning and 41.9 MB in the end (delta: -14.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.83 ms. Allocated memory is still 58.7 MB. Free memory was 41.9 MB in the beginning and 40.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 426.70 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 40.5 MB in the beginning and 50.8 MB in the end (delta: -10.3 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3245.40 ms. Allocated memory is still 71.3 MB. Free memory was 50.5 MB in the beginning and 49.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 16.1 GB. * Witness Printer took 47.52 ms. Allocated memory is still 71.3 MB. Free memory was 49.1 MB in the beginning and 47.0 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 - CounterExampleResult [Line: 5]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L34] double a; [L35] float r; [L37] a = __VERIFIER_nondet_double() [L10] double dmax; [L11] float f; [L13] EXPR \read(d) [L13] COND FALSE !((((*(unsigned*)&d) & 0x7FF00000) >> 20) == 2047) [L15] ((unsigned*)&dmax)[0] = 0x47efffff [L16] ((unsigned*)&dmax)[1] = 0xe0000000 [L18] EXPR \read(d) [L18] EXPR \read(dmax) [L18] COND FALSE !(d > dmax) [L21] EXPR \read(d) [L21] EXPR \read(dmax) [L21] COND FALSE !(-d > dmax) [L25] EXPR \read(d) [L25] d >= -3.41e38 && d <= 3.41e38 [L5] COND TRUE !(cond) [L5] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3176.8ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 13.3ms, AutomataDifference: 1322.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 15 SDtfs, 22 SDslu, 62 SDs, 0 SdLazy, 87 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1093.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 585.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 8.8ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 36.1ms SsaConstructionTime, 114.8ms SatisfiabilityAnalysisTime, 1021.3ms InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 3 QuantifiedInterpolants, 604 SizeOfPredicates, 8 NumberOfNonLiveVariables, 58 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-08-26 00:11:21,191 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...