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/egcd.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 12:39:32,174 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 12:39:32,176 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 12:39:32,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 12:39:32,189 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 12:39:32,190 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 12:39:32,191 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 12:39:32,193 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 12:39:32,195 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 12:39:32,196 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 12:39:32,197 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 12:39:32,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 12:39:32,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 12:39:32,199 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 12:39:32,200 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 12:39:32,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 12:39:32,202 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 12:39:32,203 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 12:39:32,205 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 12:39:32,208 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 12:39:32,209 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 12:39:32,211 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 12:39:32,212 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 12:39:32,213 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 12:39:32,217 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 12:39:32,218 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 12:39:32,218 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 12:39:32,219 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 12:39:32,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 12:39:32,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 12:39:32,224 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 12:39:32,227 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 12:39:32,228 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 12:39:32,229 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 12:39:32,230 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 12:39:32,230 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 12:39:32,233 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 12:39:32,233 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 12:39:32,233 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 12:39:32,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 12:39:32,238 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 12:39:32,239 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 12:39:32,264 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 12:39:32,264 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 12:39:32,265 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 12:39:32,265 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 12:39:32,266 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 12:39:32,266 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 12:39:32,266 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 12:39:32,266 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 12:39:32,267 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 12:39:32,267 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 12:39:32,269 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 12:39:32,270 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 12:39:32,270 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 12:39:32,270 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 12:39:32,270 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 12:39:32,271 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 12:39:32,271 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 12:39:32,271 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 12:39:32,271 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 12:39:32,272 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 12:39:32,272 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 12:39:32,272 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 12:39:32,272 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 12:39:32,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 12:39:32,273 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 12:39:32,273 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 12:39:32,273 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 12:39:32,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 12:39:32,274 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 12:39:32,274 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 12:39:32,310 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 12:39:32,323 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 12:39:32,327 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 12:39:32,328 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 12:39:32,329 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 12:39:32,329 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/egcd.c [2019-10-03 12:39:32,392 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40a22ea10/0502687e768043b594b2efc69d68678a/FLAGfa656da50 [2019-10-03 12:39:32,882 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 12:39:32,883 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/egcd.c [2019-10-03 12:39:32,893 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40a22ea10/0502687e768043b594b2efc69d68678a/FLAGfa656da50 [2019-10-03 12:39:33,250 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40a22ea10/0502687e768043b594b2efc69d68678a [2019-10-03 12:39:33,259 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 12:39:33,260 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 12:39:33,261 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 12:39:33,261 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 12:39:33,265 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 12:39:33,266 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 12:39:33" (1/1) ... [2019-10-03 12:39:33,269 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7639f8e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:33, skipping insertion in model container [2019-10-03 12:39:33,269 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 12:39:33" (1/1) ... [2019-10-03 12:39:33,277 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 12:39:33,296 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 12:39:33,477 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 12:39:33,482 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 12:39:33,503 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 12:39:33,517 INFO L192 MainTranslator]: Completed translation [2019-10-03 12:39:33,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:33 WrapperNode [2019-10-03 12:39:33,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 12:39:33,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 12:39:33,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 12:39:33,519 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 12:39:33,620 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:33" (1/1) ... [2019-10-03 12:39:33,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:33" (1/1) ... [2019-10-03 12:39:33,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:33" (1/1) ... [2019-10-03 12:39:33,627 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:33" (1/1) ... [2019-10-03 12:39:33,632 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:33" (1/1) ... [2019-10-03 12:39:33,638 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:33" (1/1) ... [2019-10-03 12:39:33,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:33" (1/1) ... [2019-10-03 12:39:33,641 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 12:39:33,642 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 12:39:33,642 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 12:39:33,642 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 12:39:33,643 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 12:39:33" (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 12:39:33,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 12:39:33,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 12:39:33,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-03 12:39:33,700 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 12:39:33,701 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 12:39:33,701 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 12:39:33,701 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-03 12:39:33,701 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-03 12:39:33,701 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 12:39:33,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 12:39:33,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 12:39:33,886 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 12:39:33,887 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-03 12:39:33,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 12:39:33 BoogieIcfgContainer [2019-10-03 12:39:33,889 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 12:39:33,890 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-10-03 12:39:33,890 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-10-03 12:39:33,890 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-10-03 12:39:33,891 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 12:39:33" (1/1) ... [2019-10-03 12:39:33,923 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 12:39:34,143 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-10-03 12:39:34,159 INFO L272 AbstractInterpreter]: Visited 16 different actions 16 times. Never merged. Never widened. Performed 39 root evaluator evaluations with a maximum evaluation depth of 7. Performed 39 inverse root evaluator evaluations with a maximum inverse evaluation depth of 7. Never found a fixpoint. Largest state had 11 variables. [2019-10-03 12:39:34,160 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-10-03 12:39:34,162 INFO L168 Benchmark]: Toolchain (without parser) took 901.06 ms. Allocated memory was 140.0 MB in the beginning and 199.8 MB in the end (delta: 59.8 MB). Free memory was 86.1 MB in the beginning and 154.6 MB in the end (delta: -68.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-03 12:39:34,163 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 104.7 MB in the beginning and 104.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 12:39:34,164 INFO L168 Benchmark]: CACSL2BoogieTranslator took 256.68 ms. Allocated memory is still 140.0 MB. Free memory was 85.6 MB in the beginning and 75.9 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-10-03 12:39:34,165 INFO L168 Benchmark]: Boogie Preprocessor took 123.10 ms. Allocated memory was 140.0 MB in the beginning and 199.8 MB in the end (delta: 59.8 MB). Free memory was 75.9 MB in the beginning and 176.7 MB in the end (delta: -100.8 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2019-10-03 12:39:34,166 INFO L168 Benchmark]: RCFGBuilder took 247.33 ms. Allocated memory is still 199.8 MB. Free memory was 176.7 MB in the beginning and 164.0 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2019-10-03 12:39:34,167 INFO L168 Benchmark]: Abstract Interpretation took 270.16 ms. Allocated memory is still 199.8 MB. Free memory was 164.0 MB in the beginning and 154.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-10-03 12:39:34,171 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 104.7 MB in the beginning and 104.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 256.68 ms. Allocated memory is still 140.0 MB. Free memory was 85.6 MB in the beginning and 75.9 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.10 ms. Allocated memory was 140.0 MB in the beginning and 199.8 MB in the end (delta: 59.8 MB). Free memory was 75.9 MB in the beginning and 176.7 MB in the end (delta: -100.8 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 247.33 ms. Allocated memory is still 199.8 MB. Free memory was 176.7 MB in the beginning and 164.0 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 270.16 ms. Allocated memory is still 199.8 MB. Free memory was 164.0 MB in the beginning and 154.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 8]: 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: [L14] int a, b, p, q, r, s; [L15] int x, y; [L16] x = __VERIFIER_nondet_int() [L17] y = __VERIFIER_nondet_int() [L21] a = x [L22] b = y [L23] p = 1 [L24] q = 0 [L25] r = 0 [L26] s = 1 [L28] COND TRUE 1 [L29] CALL __VERIFIER_assert(1 == p * s - r * q) [L6] COND TRUE !(cond) [L8] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...