./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/filter2_iterated.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8d31f386 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/filter2_iterated.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 4d18c017f419dc210dcbafa8af1edf74b131b258 ...................................................................................................................................................................................................................................................... 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/filter2_iterated.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 4d18c017f419dc210dcbafa8af1edf74b131b258 ................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-04 23:14:03,054 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-04 23:14:03,056 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-04 23:14:03,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-04 23:14:03,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-04 23:14:03,093 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-04 23:14:03,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-04 23:14:03,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-04 23:14:03,099 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-04 23:14:03,102 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-04 23:14:03,103 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-04 23:14:03,104 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-04 23:14:03,104 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-04 23:14:03,106 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-04 23:14:03,107 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-04 23:14:03,108 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-04 23:14:03,110 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-04 23:14:03,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-04 23:14:03,111 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-04 23:14:03,116 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-04 23:14:03,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-04 23:14:03,117 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-04 23:14:03,119 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-04 23:14:03,119 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-04 23:14:03,124 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-04 23:14:03,124 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-04 23:14:03,124 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-04 23:14:03,125 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-04 23:14:03,125 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-04 23:14:03,126 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-04 23:14:03,126 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-04 23:14:03,126 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-04 23:14:03,127 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-04 23:14:03,128 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-04 23:14:03,129 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-04 23:14:03,129 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-04 23:14:03,129 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-04 23:14:03,129 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-04 23:14:03,130 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-04 23:14:03,131 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-04 23:14:03,131 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-04 23:14:03,133 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-07-04 23:14:03,159 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-04 23:14:03,159 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-04 23:14:03,161 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-04 23:14:03,161 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-04 23:14:03,162 INFO L138 SettingsManager]: * Use SBE=true [2021-07-04 23:14:03,162 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-04 23:14:03,162 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-04 23:14:03,162 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-04 23:14:03,163 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-04 23:14:03,163 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-04 23:14:03,163 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-04 23:14:03,164 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-04 23:14:03,164 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-04 23:14:03,164 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-04 23:14:03,164 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-04 23:14:03,164 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-04 23:14:03,164 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-04 23:14:03,164 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-04 23:14:03,165 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-04 23:14:03,165 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-04 23:14:03,165 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 23:14:03,165 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-04 23:14:03,165 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-04 23:14:03,165 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-04 23:14:03,166 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-04 23:14:03,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-04 23:14:03,166 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-04 23:14:03,166 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-04 23:14:03,166 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d18c017f419dc210dcbafa8af1edf74b131b258 [2021-07-04 23:14:03,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-04 23:14:03,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-04 23:14:03,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-04 23:14:03,412 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-04 23:14:03,412 INFO L275 PluginConnector]: CDTParser initialized [2021-07-04 23:14:03,413 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/filter2_iterated.c [2021-07-04 23:14:03,476 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27358b1f2/c1f4ade290314aa190e5e74994b0ffe5/FLAG11052dab0 [2021-07-04 23:14:03,838 INFO L306 CDTParser]: Found 1 translation units. [2021-07-04 23:14:03,839 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/filter2_iterated.c [2021-07-04 23:14:03,844 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27358b1f2/c1f4ade290314aa190e5e74994b0ffe5/FLAG11052dab0 [2021-07-04 23:14:03,854 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27358b1f2/c1f4ade290314aa190e5e74994b0ffe5 [2021-07-04 23:14:03,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-04 23:14:03,857 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-04 23:14:03,860 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-04 23:14:03,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-04 23:14:03,862 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-04 23:14:03,862 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 11:14:03" (1/1) ... [2021-07-04 23:14:03,863 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20822e46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 11:14:03, skipping insertion in model container [2021-07-04 23:14:03,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 11:14:03" (1/1) ... [2021-07-04 23:14:03,867 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-04 23:14:03,883 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-04 23:14:03,971 WARN L224 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/filter2_iterated.c[447,460] [2021-07-04 23:14:04,006 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-04 23:14:04,011 INFO L203 MainTranslator]: Completed pre-run [2021-07-04 23:14:04,018 WARN L224 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/filter2_iterated.c[447,460] [2021-07-04 23:14:04,032 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-04 23:14:04,041 INFO L208 MainTranslator]: Completed translation [2021-07-04 23:14:04,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 11:14:04 WrapperNode [2021-07-04 23:14:04,043 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-04 23:14:04,044 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-04 23:14:04,044 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-04 23:14:04,044 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-04 23:14:04,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 11:14:04" (1/1) ... [2021-07-04 23:14:04,053 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 11:14:04" (1/1) ... [2021-07-04 23:14:04,069 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-04 23:14:04,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-04 23:14:04,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-04 23:14:04,070 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-04 23:14:04,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 11:14:04" (1/1) ... [2021-07-04 23:14:04,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 11:14:04" (1/1) ... [2021-07-04 23:14:04,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 11:14:04" (1/1) ... [2021-07-04 23:14:04,078 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 11:14:04" (1/1) ... [2021-07-04 23:14:04,082 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 11:14:04" (1/1) ... [2021-07-04 23:14:04,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 11:14:04" (1/1) ... [2021-07-04 23:14:04,092 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 11:14:04" (1/1) ... [2021-07-04 23:14:04,094 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-04 23:14:04,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-04 23:14:04,094 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-04 23:14:04,094 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-04 23:14:04,095 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 11:14:04" (1/1) ... [2021-07-04 23:14:04,103 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 23:14:04,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-04 23:14:04,118 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) [2021-07-04 23:14:04,125 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 [2021-07-04 23:14:04,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-04 23:14:04,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-04 23:14:04,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-07-04 23:14:04,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-07-04 23:14:04,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-04 23:14:04,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-04 23:14:04,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-07-04 23:14:04,406 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-04 23:14:04,420 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-07-04 23:14:04,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 11:14:04 BoogieIcfgContainer [2021-07-04 23:14:04,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-04 23:14:04,423 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-04 23:14:04,423 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-04 23:14:04,425 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-04 23:14:04,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.07 11:14:03" (1/3) ... [2021-07-04 23:14:04,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32a1b203 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.07 11:14:04, skipping insertion in model container [2021-07-04 23:14:04,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 11:14:04" (2/3) ... [2021-07-04 23:14:04,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32a1b203 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.07 11:14:04, skipping insertion in model container [2021-07-04 23:14:04,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 11:14:04" (3/3) ... [2021-07-04 23:14:04,427 INFO L111 eAbstractionObserver]: Analyzing ICFG filter2_iterated.c [2021-07-04 23:14:04,432 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-04 23:14:04,441 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-04 23:14:04,483 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-04 23:14:04,490 INFO L329 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, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-04 23:14:04,490 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-04 23:14:04,500 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 16 states have internal predecessors, (23), 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) [2021-07-04 23:14:04,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-07-04 23:14:04,507 INFO L517 BasicCegarLoop]: Found error trace [2021-07-04 23:14:04,507 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-07-04 23:14:04,508 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-04 23:14:04,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-04 23:14:04,517 INFO L82 PathProgramCache]: Analyzing trace with hash 304794067, now seen corresponding path program 1 times [2021-07-04 23:14:04,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-04 23:14:04,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985101695] [2021-07-04 23:14:04,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 23:14:04,525 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-04 23:14:04,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-04 23:14:04,630 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-04 23:14:04,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-04 23:14:04,663 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-04 23:14:04,683 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-04 23:14:04,686 INFO L639 BasicCegarLoop]: Counterexample is feasible [2021-07-04 23:14:04,688 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-04 23:14:04,688 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-04 23:14:04,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.07 11:14:04 BoogieIcfgContainer [2021-07-04 23:14:04,706 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-04 23:14:04,707 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-04 23:14:04,707 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-04 23:14:04,707 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-04 23:14:04,707 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 11:14:04" (3/4) ... [2021-07-04 23:14:04,709 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-07-04 23:14:04,709 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-04 23:14:04,711 INFO L168 Benchmark]: Toolchain (without parser) took 852.73 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 51.6 MB in the beginning and 44.4 MB in the end (delta: 7.2 MB). Peak memory consumption was 21.5 MB. Max. memory is 16.1 GB. [2021-07-04 23:14:04,711 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 69.2 MB. Free memory was 51.1 MB in the beginning and 51.1 MB in the end (delta: 54.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 23:14:04,711 INFO L168 Benchmark]: CACSL2BoogieTranslator took 183.77 ms. Allocated memory is still 69.2 MB. Free memory was 51.4 MB in the beginning and 50.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-07-04 23:14:04,712 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.90 ms. Allocated memory is still 69.2 MB. Free memory was 50.1 MB in the beginning and 48.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-04 23:14:04,712 INFO L168 Benchmark]: Boogie Preprocessor took 23.53 ms. Allocated memory is still 69.2 MB. Free memory was 48.2 MB in the beginning and 46.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-04 23:14:04,713 INFO L168 Benchmark]: RCFGBuilder took 327.95 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 46.5 MB in the beginning and 60.3 MB in the end (delta: -13.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 16.1 GB. [2021-07-04 23:14:04,713 INFO L168 Benchmark]: TraceAbstraction took 283.24 ms. Allocated memory is still 83.9 MB. Free memory was 59.5 MB in the beginning and 44.8 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-07-04 23:14:04,713 INFO L168 Benchmark]: Witness Printer took 2.62 ms. Allocated memory is still 83.9 MB. Free memory is still 44.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 23:14:04,715 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 ms. Allocated memory is still 69.2 MB. Free memory was 51.1 MB in the beginning and 51.1 MB in the end (delta: 54.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 183.77 ms. Allocated memory is still 69.2 MB. Free memory was 51.4 MB in the beginning and 50.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 25.90 ms. Allocated memory is still 69.2 MB. Free memory was 50.1 MB in the beginning and 48.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.53 ms. Allocated memory is still 69.2 MB. Free memory was 48.2 MB in the beginning and 46.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 327.95 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 46.5 MB in the beginning and 60.3 MB in the end (delta: -13.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 283.24 ms. Allocated memory is still 83.9 MB. Free memory was 59.5 MB in the beginning and 44.8 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Witness Printer took 2.62 ms. Allocated memory is still 83.9 MB. Free memory is still 44.4 MB. 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: 9]: 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 74, overapproximation of to_real at line 58, overapproximation of someBinaryArithmeticDOUBLEoperation at line 62. Possible FailurePath: [L13] BOOLEAN INIT1, INIT2; [L14] float X, P; [L18] static float E[2], S[2]; [L38] static float E2[2], S2[2]; VAL [E={11:0}, E2={5:0}, INIT1=0, INIT2=0, P=0, S={9:0}, S2={10:0}, X=0] [L58] X = 0 [L59] INIT1 = TRUE [L60] INIT2 = TRUE VAL [E={11:0}, E2={5:0}, INIT1=1, INIT2=1, P=0, S={9:0}, S2={10:0}] [L61] COND TRUE \read(TRUE) [L62] X = 0.98*X + 85. VAL [E={11:0}, E2={5:0}, INIT1=1, INIT2=1, P=0, S={9:0}, S2={10:0}] [L63] COND FALSE !(X >= -400. && X <= 400.) VAL [E={11:0}, E2={5:0}, INIT1=1, INIT2=1, P=0, S={9:0}, S2={10:0}] [L68] COND FALSE !(X >= -800. && X <= 800.) VAL [E={11:0}, E2={5:0}, INIT1=1, INIT2=1, P=0, S={9:0}, S2={10:0}] [L9] COND TRUE !(cond) VAL [E={11:0}, E2={5:0}, INIT1=1, INIT2=1, P=0, S={9:0}, S2={10:0}] [L9] reach_error() VAL [E={11:0}, E2={5:0}, INIT1=1, INIT2=1, P=0, S={9:0}, S2={10:0}] - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 208.8ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 8.6ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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: 6.4ms SsaConstructionTime, 52.1ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 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 [2021-07-04 23:14:04,770 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-wip.dd.multireach-323-8d31f38 [2021-07-04 23:14:06,140 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-04 23:14:06,142 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-04 23:14:06,160 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-04 23:14:06,160 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-04 23:14:06,161 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-04 23:14:06,162 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-04 23:14:06,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-04 23:14:06,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-04 23:14:06,165 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-04 23:14:06,165 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-04 23:14:06,166 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-04 23:14:06,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-04 23:14:06,167 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-04 23:14:06,168 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-04 23:14:06,168 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-04 23:14:06,169 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-04 23:14:06,169 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-04 23:14:06,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-04 23:14:06,171 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-04 23:14:06,172 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-04 23:14:06,177 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-04 23:14:06,177 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-04 23:14:06,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-04 23:14:06,181 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-04 23:14:06,183 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-04 23:14:06,183 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-04 23:14:06,184 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-04 23:14:06,184 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-04 23:14:06,185 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-04 23:14:06,187 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-04 23:14:06,187 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-04 23:14:06,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-04 23:14:06,190 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-04 23:14:06,191 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-04 23:14:06,191 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-04 23:14:06,192 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-04 23:14:06,192 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-04 23:14:06,192 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-04 23:14:06,193 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-04 23:14:06,194 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-04 23:14:06,194 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-07-04 23:14:06,211 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-04 23:14:06,212 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-04 23:14:06,213 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-04 23:14:06,213 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-04 23:14:06,213 INFO L138 SettingsManager]: * Use SBE=true [2021-07-04 23:14:06,213 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-04 23:14:06,213 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-04 23:14:06,213 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-04 23:14:06,214 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-04 23:14:06,214 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-04 23:14:06,214 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-04 23:14:06,214 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-04 23:14:06,214 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-07-04 23:14:06,214 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-07-04 23:14:06,215 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-04 23:14:06,218 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-04 23:14:06,218 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-04 23:14:06,219 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-04 23:14:06,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-04 23:14:06,219 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-04 23:14:06,219 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-04 23:14:06,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 23:14:06,219 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-04 23:14:06,220 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-04 23:14:06,220 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-04 23:14:06,220 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-07-04 23:14:06,220 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-07-04 23:14:06,220 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-04 23:14:06,220 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-04 23:14:06,221 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-04 23:14:06,221 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d18c017f419dc210dcbafa8af1edf74b131b258 [2021-07-04 23:14:06,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-04 23:14:06,478 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-04 23:14:06,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-04 23:14:06,482 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-04 23:14:06,483 INFO L275 PluginConnector]: CDTParser initialized [2021-07-04 23:14:06,483 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/filter2_iterated.c [2021-07-04 23:14:06,530 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fbf24a96/e7664d9472ce4ab4a64e3857716c361a/FLAG5a88c9733 [2021-07-04 23:14:06,887 INFO L306 CDTParser]: Found 1 translation units. [2021-07-04 23:14:06,888 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/filter2_iterated.c [2021-07-04 23:14:06,893 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fbf24a96/e7664d9472ce4ab4a64e3857716c361a/FLAG5a88c9733 [2021-07-04 23:14:07,309 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fbf24a96/e7664d9472ce4ab4a64e3857716c361a [2021-07-04 23:14:07,311 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-04 23:14:07,312 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-04 23:14:07,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-04 23:14:07,313 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-04 23:14:07,315 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-04 23:14:07,315 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 11:14:07" (1/1) ... [2021-07-04 23:14:07,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1540770e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 11:14:07, skipping insertion in model container [2021-07-04 23:14:07,317 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 11:14:07" (1/1) ... [2021-07-04 23:14:07,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-04 23:14:07,338 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-04 23:14:07,428 WARN L224 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/filter2_iterated.c[447,460] [2021-07-04 23:14:07,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-04 23:14:07,459 INFO L203 MainTranslator]: Completed pre-run [2021-07-04 23:14:07,466 WARN L224 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/filter2_iterated.c[447,460] [2021-07-04 23:14:07,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-04 23:14:07,506 INFO L208 MainTranslator]: Completed translation [2021-07-04 23:14:07,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 11:14:07 WrapperNode [2021-07-04 23:14:07,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-04 23:14:07,507 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-04 23:14:07,507 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-04 23:14:07,508 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-04 23:14:07,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 11:14:07" (1/1) ... [2021-07-04 23:14:07,541 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 11:14:07" (1/1) ... [2021-07-04 23:14:07,561 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-04 23:14:07,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-04 23:14:07,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-04 23:14:07,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-04 23:14:07,567 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 11:14:07" (1/1) ... [2021-07-04 23:14:07,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 11:14:07" (1/1) ... [2021-07-04 23:14:07,570 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 11:14:07" (1/1) ... [2021-07-04 23:14:07,571 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 11:14:07" (1/1) ... [2021-07-04 23:14:07,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 11:14:07" (1/1) ... [2021-07-04 23:14:07,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 11:14:07" (1/1) ... [2021-07-04 23:14:07,581 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 11:14:07" (1/1) ... [2021-07-04 23:14:07,583 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-04 23:14:07,584 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-04 23:14:07,584 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-04 23:14:07,584 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-04 23:14:07,588 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 11:14:07" (1/1) ... [2021-07-04 23:14:07,592 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 23:14:07,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-04 23:14:07,605 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) [2021-07-04 23:14:07,607 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 [2021-07-04 23:14:07,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-07-04 23:14:07,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-07-04 23:14:07,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-04 23:14:07,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-07-04 23:14:07,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-04 23:14:07,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-04 23:14:07,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-07-04 23:14:15,457 WARN L224 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-07-04 23:14:15,458 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Statements2TransFormula.constructTransFormula(Statements2TransFormula.java:214) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Statements2TransFormula.getTransFormula(Statements2TransFormula.java:174) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Statements2TransFormula.statementSequence(Statements2TransFormula.java:722) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.util.TransFormulaAdder.addTransitionFormulas(TransFormulaAdder.java:119) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:724) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:265) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:235) ... 25 more [2021-07-04 23:14:15,467 INFO L168 Benchmark]: Toolchain (without parser) took 8154.51 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 40.0 MB in the beginning and 53.5 MB in the end (delta: -13.5 MB). Peak memory consumption was 23.8 MB. Max. memory is 16.1 GB. [2021-07-04 23:14:15,468 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 58.7 MB. Free memory is still 41.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 23:14:15,468 INFO L168 Benchmark]: CACSL2BoogieTranslator took 193.91 ms. Allocated memory is still 58.7 MB. Free memory was 39.7 MB in the beginning and 42.3 MB in the end (delta: -2.6 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. [2021-07-04 23:14:15,469 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.65 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 42.3 MB in the beginning and 53.7 MB in the end (delta: -11.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-04 23:14:15,469 INFO L168 Benchmark]: Boogie Preprocessor took 22.14 ms. Allocated memory is still 71.3 MB. Free memory was 53.7 MB in the beginning and 51.6 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 23:14:15,469 INFO L168 Benchmark]: RCFGBuilder took 7875.13 ms. Allocated memory is still 71.3 MB. Free memory was 51.6 MB in the beginning and 53.8 MB in the end (delta: -2.2 MB). Peak memory consumption was 24.7 MB. Max. memory is 16.1 GB. [2021-07-04 23:14:15,471 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### [2021-07-04 23:14:15,473 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 101 --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 58.7 MB. Free memory is still 41.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 193.91 ms. Allocated memory is still 58.7 MB. Free memory was 39.7 MB in the beginning and 42.3 MB in the end (delta: -2.6 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.65 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 42.3 MB in the beginning and 53.7 MB in the end (delta: -11.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.14 ms. Allocated memory is still 71.3 MB. Free memory was 53.7 MB in the beginning and 51.6 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 7875.13 ms. Allocated memory is still 71.3 MB. Free memory was 51.6 MB in the beginning and 53.8 MB in the end (delta: -2.2 MB). Peak memory consumption was 24.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...