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/nla-digbench/bresenham.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 12:39:29,723 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 12:39:29,725 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 12:39:29,737 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-10-03 12:39:29,747 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 12:39:29,748 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 12:39:29,749 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 12:39:29,750 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 12:39:29,751 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 12:39:29,752 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 12:39:29,754 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 12:39:29,755 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 12:39:29,757 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 12:39:29,758 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 12:39:29,759 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 12:39:29,760 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 12:39:29,762 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-03 12:39:29,772 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 12:39:29,786 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 12:39:29,786 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 12:39:29,787 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 12:39:29,787 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 12:39:29,788 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 12:39:29,788 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 12:39:29,788 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 12:39:29,788 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 12:39:29,789 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 12:39:29,789 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 12:39:29,790 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 12:39:29,790 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 12:39:29,790 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 12:39:29,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 12:39:29,790 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 12:39:29,791 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 12:39:29,791 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 12:39:29,791 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 12:39:29,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 12:39:29,791 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 12:39:29,792 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 12:39:29,792 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 12:39:29,792 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 12:39:29,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 12:39:29,793 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 12:39:29,793 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 12:39:29,793 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 12:39:29,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 12:39:29,794 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 12:39:29,794 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 12:39:29,821 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 12:39:29,834 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 12:39:29,838 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 12:39:29,840 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 12:39:29,840 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 12:39:29,841 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/bresenham.c [2019-10-03 12:39:29,905 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bad7237c1/4249735dd133406a9cccc9f2b3fecfc0/FLAGa040df66b [2019-10-03 12:39:30,333 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 12:39:30,334 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/bresenham.c [2019-10-03 12:39:30,341 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bad7237c1/4249735dd133406a9cccc9f2b3fecfc0/FLAGa040df66b [2019-10-03 12:39:30,743 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bad7237c1/4249735dd133406a9cccc9f2b3fecfc0 [2019-10-03 12:39:30,754 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 12:39:30,755 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 12:39:30,757 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 12:39:30,757 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 12:39:30,762 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 12:39:30,763 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 12:39:30" (1/1) ... [2019-10-03 12:39:30,766 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65342265 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:30, skipping insertion in model container [2019-10-03 12:39:30,766 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 12:39:30" (1/1) ... [2019-10-03 12:39:30,774 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 12:39:30,791 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 12:39:31,042 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 12:39:31,050 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 12:39:31,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 12:39:31,101 INFO L192 MainTranslator]: Completed translation [2019-10-03 12:39:31,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:31 WrapperNode [2019-10-03 12:39:31,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 12:39:31,102 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 12:39:31,103 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 12:39:31,104 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 12:39:31,211 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:31" (1/1) ... [2019-10-03 12:39:31,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:31" (1/1) ... [2019-10-03 12:39:31,217 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:31" (1/1) ... [2019-10-03 12:39:31,217 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:31" (1/1) ... [2019-10-03 12:39:31,221 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:31" (1/1) ... [2019-10-03 12:39:31,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:31" (1/1) ... [2019-10-03 12:39:31,228 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:31" (1/1) ... [2019-10-03 12:39:31,229 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 12:39:31,230 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 12:39:31,230 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 12:39:31,230 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 12:39:31,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:31" (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 12:39:31,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 12:39:31,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 12:39:31,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-03 12:39:31,293 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 12:39:31,293 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 12:39:31,293 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 12:39:31,293 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-03 12:39:31,293 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-03 12:39:31,293 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 12:39:31,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 12:39:31,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 12:39:31,493 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 12:39:31,494 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-03 12:39:31,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 12:39:31 BoogieIcfgContainer [2019-10-03 12:39:31,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 12:39:31,496 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-10-03 12:39:31,496 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-10-03 12:39:31,497 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-10-03 12:39:31,497 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 12:39:31" (1/1) ... [2019-10-03 12:39:31,524 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 12:39:31,658 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-10-03 12:39:31,679 INFO L272 AbstractInterpreter]: Visited 16 different actions 16 times. Never merged. Never widened. Performed 15 root evaluator evaluations with a maximum evaluation depth of 11. Performed 15 inverse root evaluator evaluations with a maximum inverse evaluation depth of 11. Never found a fixpoint. Largest state had 10 variables. [2019-10-03 12:39:31,679 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-10-03 12:39:31,682 INFO L168 Benchmark]: Toolchain (without parser) took 925.89 ms. Allocated memory was 141.0 MB in the beginning and 199.8 MB in the end (delta: 58.7 MB). Free memory was 88.5 MB in the beginning and 156.3 MB in the end (delta: -67.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-03 12:39:31,684 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 141.0 MB. Free memory was 107.1 MB in the beginning and 106.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 12:39:31,685 INFO L168 Benchmark]: CACSL2BoogieTranslator took 345.20 ms. Allocated memory is still 141.0 MB. Free memory was 88.1 MB in the beginning and 78.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-10-03 12:39:31,686 INFO L168 Benchmark]: Boogie Preprocessor took 127.09 ms. Allocated memory was 141.0 MB in the beginning and 199.8 MB in the end (delta: 58.7 MB). Free memory was 78.2 MB in the beginning and 177.2 MB in the end (delta: -99.0 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2019-10-03 12:39:31,687 INFO L168 Benchmark]: RCFGBuilder took 265.76 ms. Allocated memory is still 199.8 MB. Free memory was 177.2 MB in the beginning and 164.6 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2019-10-03 12:39:31,688 INFO L168 Benchmark]: Abstract Interpretation took 183.23 ms. Allocated memory is still 199.8 MB. Free memory was 164.6 MB in the beginning and 156.3 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 7.1 GB. [2019-10-03 12:39:31,694 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 141.0 MB. Free memory was 107.1 MB in the beginning and 106.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 345.20 ms. Allocated memory is still 141.0 MB. Free memory was 88.1 MB in the beginning and 78.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.09 ms. Allocated memory was 141.0 MB in the beginning and 199.8 MB in the end (delta: 58.7 MB). Free memory was 78.2 MB in the beginning and 177.2 MB in the end (delta: -99.0 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 265.76 ms. Allocated memory is still 199.8 MB. Free memory was 177.2 MB in the beginning and 164.6 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 183.23 ms. Allocated memory is still 199.8 MB. Free memory was 164.6 MB in the beginning and 156.3 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 11]: 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: [L17] int X, Y; [L18] int v, x, y; [L19] X = __VERIFIER_nondet_int() [L20] Y = __VERIFIER_nondet_int() [L21] v = 2 * Y - X [L22] y = 0 [L23] x = 0 [L25] COND TRUE 1 [L26] CALL __VERIFIER_assert(2*Y*x - 2*X*y - X + 2*Y - v == 0) [L9] COND TRUE !(cond) [L11] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...