java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AbstractInterpretationC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/float-benchs/filter2_iterated.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-11 16:03:45,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-11 16:03:45,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-11 16:03:45,166 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-11 16:03:45,166 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-11 16:03:45,167 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-11 16:03:45,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-11 16:03:45,170 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-11 16:03:45,172 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-11 16:03:45,173 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-11 16:03:45,174 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-11 16:03:45,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-11 16:03:45,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-11 16:03:45,176 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-11 16:03:45,177 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-11 16:03:45,179 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-11 16:03:45,179 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-11 16:03:45,180 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-11 16:03:45,182 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-11 16:03:45,184 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-11 16:03:45,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-11 16:03:45,186 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-11 16:03:45,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-11 16:03:45,188 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-11 16:03:45,190 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-11 16:03:45,193 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-11 16:03:45,194 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-11 16:03:45,195 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-11 16:03:45,195 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-11 16:03:45,196 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-11 16:03:45,197 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-11 16:03:45,197 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-11 16:03:45,198 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-11 16:03:45,198 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-11 16:03:45,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-11 16:03:45,199 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-11 16:03:45,200 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-11 16:03:45,216 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-11 16:03:45,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-11 16:03:45,216 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-11 16:03:45,217 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-11 16:03:45,217 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-11 16:03:45,217 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-11 16:03:45,218 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-11 16:03:45,218 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-11 16:03:45,218 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-11 16:03:45,218 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-11 16:03:45,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-11 16:03:45,219 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-11 16:03:45,219 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-11 16:03:45,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-11 16:03:45,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-11 16:03:45,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-11 16:03:45,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-11 16:03:45,220 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-11 16:03:45,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-11 16:03:45,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-11 16:03:45,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-11 16:03:45,221 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-11 16:03:45,221 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-11 16:03:45,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-11 16:03:45,222 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-11 16:03:45,222 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-11 16:03:45,222 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-11 16:03:45,222 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-11 16:03:45,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-11 16:03:45,223 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-11 16:03:45,252 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-11 16:03:45,268 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-11 16:03:45,272 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-11 16:03:45,274 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-11 16:03:45,274 INFO L275 PluginConnector]: CDTParser initialized [2019-09-11 16:03:45,275 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/filter2_iterated.c [2019-09-11 16:03:45,353 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd46dac25/b12e4301c4354c50b26fe53eb6258333/FLAG0b6e52631 [2019-09-11 16:03:45,778 INFO L306 CDTParser]: Found 1 translation units. [2019-09-11 16:03:45,779 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/filter2_iterated.c [2019-09-11 16:03:45,786 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd46dac25/b12e4301c4354c50b26fe53eb6258333/FLAG0b6e52631 [2019-09-11 16:03:46,173 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd46dac25/b12e4301c4354c50b26fe53eb6258333 [2019-09-11 16:03:46,182 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-11 16:03:46,183 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-11 16:03:46,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-11 16:03:46,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-11 16:03:46,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-11 16:03:46,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:03:46" (1/1) ... [2019-09-11 16:03:46,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ba085a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:03:46, skipping insertion in model container [2019-09-11 16:03:46,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:03:46" (1/1) ... [2019-09-11 16:03:46,199 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-11 16:03:46,219 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-11 16:03:46,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:03:46,731 INFO L188 MainTranslator]: Completed pre-run [2019-09-11 16:03:46,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:03:46,830 INFO L192 MainTranslator]: Completed translation [2019-09-11 16:03:46,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:03:46 WrapperNode [2019-09-11 16:03:46,831 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-11 16:03:46,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-11 16:03:46,832 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-11 16:03:46,832 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-11 16:03:46,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:03:46" (1/1) ... [2019-09-11 16:03:46,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:03:46" (1/1) ... [2019-09-11 16:03:46,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:03:46" (1/1) ... [2019-09-11 16:03:46,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:03:46" (1/1) ... [2019-09-11 16:03:46,900 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:03:46" (1/1) ... [2019-09-11 16:03:46,904 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:03:46" (1/1) ... [2019-09-11 16:03:46,906 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:03:46" (1/1) ... [2019-09-11 16:03:46,909 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-11 16:03:46,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-11 16:03:46,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-11 16:03:46,910 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-11 16:03:46,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:03:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-11 16:03:46,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-11 16:03:46,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-11 16:03:46,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-11 16:03:46,975 INFO L138 BoogieDeclarations]: Found implementation of procedure filter1 [2019-09-11 16:03:46,975 INFO L138 BoogieDeclarations]: Found implementation of procedure filter2 [2019-09-11 16:03:46,975 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-11 16:03:46,975 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-11 16:03:46,975 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-11 16:03:46,975 INFO L130 BoogieDeclarations]: Found specification of procedure filter1 [2019-09-11 16:03:46,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-11 16:03:46,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-11 16:03:46,976 INFO L130 BoogieDeclarations]: Found specification of procedure filter2 [2019-09-11 16:03:46,976 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-11 16:03:46,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-11 16:03:46,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-11 16:03:46,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-09-11 16:03:46,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-11 16:03:46,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-11 16:03:47,274 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-11 16:03:47,274 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-11 16:03:47,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:03:47 BoogieIcfgContainer [2019-09-11 16:03:47,276 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-11 16:03:47,277 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-11 16:03:47,277 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-11 16:03:47,277 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-11 16:03:47,278 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:03:47" (1/1) ... [2019-09-11 16:03:47,314 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-11 16:03:47,434 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-11 16:03:47,446 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 25 root evaluator evaluations with a maximum evaluation depth of 0. Performed 25 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 38 variables. [2019-09-11 16:03:47,446 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-11 16:03:47,449 INFO L168 Benchmark]: Toolchain (without parser) took 1264.41 ms. Allocated memory was 131.1 MB in the beginning and 200.8 MB in the end (delta: 69.7 MB). Free memory was 86.3 MB in the beginning and 151.0 MB in the end (delta: -64.7 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2019-09-11 16:03:47,450 INFO L168 Benchmark]: CDTParser took 1.01 ms. Allocated memory is still 131.1 MB. Free memory was 104.3 MB in the beginning and 104.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-11 16:03:47,452 INFO L168 Benchmark]: CACSL2BoogieTranslator took 646.83 ms. Allocated memory was 131.1 MB in the beginning and 200.8 MB in the end (delta: 69.7 MB). Free memory was 85.9 MB in the beginning and 176.5 MB in the end (delta: -90.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. [2019-09-11 16:03:47,453 INFO L168 Benchmark]: Boogie Preprocessor took 77.27 ms. Allocated memory is still 200.8 MB. Free memory was 176.5 MB in the beginning and 174.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2019-09-11 16:03:47,454 INFO L168 Benchmark]: RCFGBuilder took 366.72 ms. Allocated memory is still 200.8 MB. Free memory was 174.1 MB in the beginning and 156.0 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 7.1 GB. [2019-09-11 16:03:47,454 INFO L168 Benchmark]: Abstract Interpretation took 169.50 ms. Allocated memory is still 200.8 MB. Free memory was 156.0 MB in the beginning and 151.0 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2019-09-11 16:03:47,459 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.01 ms. Allocated memory is still 131.1 MB. Free memory was 104.3 MB in the beginning and 104.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 646.83 ms. Allocated memory was 131.1 MB in the beginning and 200.8 MB in the end (delta: 69.7 MB). Free memory was 85.9 MB in the beginning and 176.5 MB in the end (delta: -90.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 77.27 ms. Allocated memory is still 200.8 MB. Free memory was 176.5 MB in the beginning and 174.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 366.72 ms. Allocated memory is still 200.8 MB. Free memory was 174.1 MB in the beginning and 156.0 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 169.50 ms. Allocated memory is still 200.8 MB. Free memory was 156.0 MB in the beginning and 151.0 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location RESULT: Ultimate proved your program to be correct! Received shutdown request...