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/loop-invgen/SpamAssassin-loop.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 12:38:20,274 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 12:38:20,276 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 12:38:20,290 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 12:38:20,290 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 12:38:20,291 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 12:38:20,292 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 12:38:20,294 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 12:38:20,296 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 12:38:20,297 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 12:38:20,298 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 12:38:20,299 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 12:38:20,299 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 12:38:20,300 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 12:38:20,301 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 12:38:20,302 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 12:38:20,303 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 12:38:20,304 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 12:38:20,305 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 12:38:20,308 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 12:38:20,309 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 12:38:20,310 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 12:38:20,311 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 12:38:20,312 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 12:38:20,315 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-03 12:38:20,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 12:38:20,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 12:38:20,319 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 12:38:20,320 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 12:38:20,321 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 12:38:20,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 12:38:20,323 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 12:38:20,323 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 12:38:20,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 12:38:20,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 12:38:20,327 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 12:38:20,328 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 [2019-10-03 12:38:20,345 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 12:38:20,345 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 12:38:20,346 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 12:38:20,346 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 12:38:20,346 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 12:38:20,347 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 12:38:20,347 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 12:38:20,347 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 12:38:20,347 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 12:38:20,347 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 12:38:20,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 12:38:20,348 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 12:38:20,348 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 12:38:20,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 12:38:20,349 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 12:38:20,349 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 12:38:20,349 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 12:38:20,349 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 12:38:20,350 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 12:38:20,350 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 12:38:20,350 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 12:38:20,350 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 12:38:20,350 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 12:38:20,351 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 12:38:20,351 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 12:38:20,351 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 12:38:20,351 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 12:38:20,351 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 12:38:20,352 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 12:38:20,352 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 12:38:20,381 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 12:38:20,393 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 12:38:20,396 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 12:38:20,398 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 12:38:20,398 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 12:38:20,399 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i [2019-10-03 12:38:20,461 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/442fd981c/3d86e6eba41c4f1e8dac386c6e1f019c/FLAG9b0430e81 [2019-10-03 12:38:20,894 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 12:38:20,894 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i [2019-10-03 12:38:20,901 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/442fd981c/3d86e6eba41c4f1e8dac386c6e1f019c/FLAG9b0430e81 [2019-10-03 12:38:21,305 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/442fd981c/3d86e6eba41c4f1e8dac386c6e1f019c [2019-10-03 12:38:21,316 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 12:38:21,318 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 12:38:21,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 12:38:21,320 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 12:38:21,326 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 12:38:21,327 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 12:38:21" (1/1) ... [2019-10-03 12:38:21,330 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e605b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:38:21, skipping insertion in model container [2019-10-03 12:38:21,330 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 12:38:21" (1/1) ... [2019-10-03 12:38:21,338 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 12:38:21,361 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 12:38:21,568 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 12:38:21,576 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 12:38:21,599 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 12:38:21,618 INFO L192 MainTranslator]: Completed translation [2019-10-03 12:38:21,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:38:21 WrapperNode [2019-10-03 12:38:21,618 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 12:38:21,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 12:38:21,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 12:38:21,619 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 12:38:21,719 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:38:21" (1/1) ... [2019-10-03 12:38:21,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:38:21" (1/1) ... [2019-10-03 12:38:21,726 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:38:21" (1/1) ... [2019-10-03 12:38:21,726 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:38:21" (1/1) ... [2019-10-03 12:38:21,730 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:38:21" (1/1) ... [2019-10-03 12:38:21,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:38:21" (1/1) ... [2019-10-03 12:38:21,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:38:21" (1/1) ... [2019-10-03 12:38:21,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 12:38:21,749 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 12:38:21,749 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 12:38:21,749 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 12:38:21,750 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:38:21" (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 [2019-10-03 12:38:21,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 12:38:21,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 12:38:21,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-03 12:38:21,817 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 12:38:21,817 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 12:38:21,818 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-03 12:38:21,818 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-03 12:38:21,818 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 12:38:21,818 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 12:38:21,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 12:38:21,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 12:38:22,072 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 12:38:22,073 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-03 12:38:22,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 12:38:22 BoogieIcfgContainer [2019-10-03 12:38:22,074 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 12:38:22,075 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-10-03 12:38:22,075 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-10-03 12:38:22,075 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-10-03 12:38:22,076 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 12:38:22" (1/1) ... [2019-10-03 12:38:22,124 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 12:38:22,830 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-10-03 12:38:22,851 INFO L272 AbstractInterpreter]: Visited 64 different actions 991 times. Merged at 31 different actions 158 times. Widened at 4 different actions 6 times. Performed 1036 root evaluator evaluations with a maximum evaluation depth of 6. Performed 1036 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 28 fixpoints after 9 different actions. Largest state had 16 variables. [2019-10-03 12:38:22,852 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-10-03 12:38:22,855 INFO L168 Benchmark]: Toolchain (without parser) took 1536.31 ms. Allocated memory was 138.4 MB in the beginning and 198.7 MB in the end (delta: 60.3 MB). Free memory was 85.9 MB in the beginning and 99.5 MB in the end (delta: -13.7 MB). Peak memory consumption was 46.6 MB. Max. memory is 7.1 GB. [2019-10-03 12:38:22,856 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory was 104.5 MB in the beginning and 104.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 12:38:22,858 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.13 ms. Allocated memory is still 138.4 MB. Free memory was 85.6 MB in the beginning and 75.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-10-03 12:38:22,859 INFO L168 Benchmark]: Boogie Preprocessor took 129.27 ms. Allocated memory was 138.4 MB in the beginning and 198.7 MB in the end (delta: 60.3 MB). Free memory was 75.6 MB in the beginning and 176.0 MB in the end (delta: -100.4 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2019-10-03 12:38:22,860 INFO L168 Benchmark]: RCFGBuilder took 325.59 ms. Allocated memory is still 198.7 MB. Free memory was 176.0 MB in the beginning and 160.3 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. [2019-10-03 12:38:22,861 INFO L168 Benchmark]: Abstract Interpretation took 777.07 ms. Allocated memory is still 198.7 MB. Free memory was 160.3 MB in the beginning and 99.5 MB in the end (delta: 60.7 MB). Peak memory consumption was 60.7 MB. Max. memory is 7.1 GB. [2019-10-03 12:38:22,865 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory was 104.5 MB in the beginning and 104.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 299.13 ms. Allocated memory is still 138.4 MB. Free memory was 85.6 MB in the beginning and 75.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 129.27 ms. Allocated memory was 138.4 MB in the beginning and 198.7 MB in the end (delta: 60.3 MB). Free memory was 75.6 MB in the beginning and 176.0 MB in the end (delta: -100.4 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 325.59 ms. Allocated memory is still 198.7 MB. Free memory was 176.0 MB in the beginning and 160.3 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 777.07 ms. Allocated memory is still 198.7 MB. Free memory was 160.3 MB in the beginning and 99.5 MB in the end (delta: 60.7 MB). Peak memory consumption was 60.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 5]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: abstract domain could reach this error location. Possible FailurePath: [L12] int len; [L13] int i; [L14] int j; [L15] int bufsize; [L16] bufsize = __VERIFIER_nondet_int() [L17] COND FALSE !(bufsize < 0) [L18] len = __VERIFIER_nondet_int() [L19] int limit = bufsize - 4; [L20] i = 0 [L20] COND TRUE i < len [L21] j = 0 [L21] COND TRUE i < len && j < limit [L22] COND FALSE !(i + 1 < len) [L43] CALL __VERIFIER_assert(i