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/egcd3.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c6af20d [2019-09-03 21:27:32,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-03 21:27:32,119 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-03 21:27:32,135 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-03 21:27:32,136 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-03 21:27:32,137 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-03 21:27:32,140 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-03 21:27:32,145 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-03 21:27:32,151 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-03 21:27:32,155 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-03 21:27:32,156 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-03 21:27:32,158 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-03 21:27:32,159 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-03 21:27:32,160 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-03 21:27:32,162 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-03 21:27:32,164 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-03 21:27:32,165 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-03 21:27:32,167 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-03 21:27:32,171 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-03 21:27:32,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-03 21:27:32,176 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-03 21:27:32,177 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-03 21:27:32,178 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-03 21:27:32,180 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-03 21:27:32,184 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-03 21:27:32,190 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-03 21:27:32,191 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-03 21:27:32,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-03 21:27:32,192 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-03 21:27:32,197 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-03 21:27:32,197 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-03 21:27:32,198 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-03 21:27:32,198 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-03 21:27:32,198 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-03 21:27:32,200 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-03 21:27:32,201 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-03 21:27:32,202 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 [2019-09-03 21:27:32,234 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-03 21:27:32,235 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-03 21:27:32,237 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-03 21:27:32,237 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-03 21:27:32,238 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-03 21:27:32,239 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-03 21:27:32,239 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-03 21:27:32,239 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-03 21:27:32,239 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-03 21:27:32,239 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-03 21:27:32,241 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-03 21:27:32,242 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-03 21:27:32,242 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-03 21:27:32,242 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-03 21:27:32,242 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-03 21:27:32,243 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-03 21:27:32,243 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-03 21:27:32,243 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-03 21:27:32,243 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-03 21:27:32,244 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-03 21:27:32,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-03 21:27:32,244 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-03 21:27:32,244 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-03 21:27:32,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-03 21:27:32,245 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-03 21:27:32,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-03 21:27:32,245 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-03 21:27:32,245 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-03 21:27:32,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-03 21:27:32,246 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-03 21:27:32,286 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-03 21:27:32,304 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-03 21:27:32,307 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-03 21:27:32,309 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-03 21:27:32,309 INFO L275 PluginConnector]: CDTParser initialized [2019-09-03 21:27:32,310 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/egcd3.c [2019-09-03 21:27:32,371 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d08c2843/7d5ca5cc62b144558c6fbf5ccaf567b6/FLAGcea269977 [2019-09-03 21:27:32,816 INFO L306 CDTParser]: Found 1 translation units. [2019-09-03 21:27:32,817 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/egcd3.c [2019-09-03 21:27:32,827 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d08c2843/7d5ca5cc62b144558c6fbf5ccaf567b6/FLAGcea269977 [2019-09-03 21:27:33,194 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d08c2843/7d5ca5cc62b144558c6fbf5ccaf567b6 [2019-09-03 21:27:33,203 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-03 21:27:33,205 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-03 21:27:33,206 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-03 21:27:33,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-03 21:27:33,209 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-03 21:27:33,210 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 09:27:33" (1/1) ... [2019-09-03 21:27:33,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2df7a19b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:33, skipping insertion in model container [2019-09-03 21:27:33,214 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 09:27:33" (1/1) ... [2019-09-03 21:27:33,220 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-03 21:27:33,238 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-03 21:27:33,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 21:27:33,426 INFO L188 MainTranslator]: Completed pre-run [2019-09-03 21:27:33,451 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 21:27:33,465 INFO L192 MainTranslator]: Completed translation [2019-09-03 21:27:33,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:33 WrapperNode [2019-09-03 21:27:33,466 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-03 21:27:33,467 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-03 21:27:33,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-03 21:27:33,467 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-03 21:27:33,579 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:33" (1/1) ... [2019-09-03 21:27:33,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:33" (1/1) ... [2019-09-03 21:27:33,585 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:33" (1/1) ... [2019-09-03 21:27:33,586 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:33" (1/1) ... [2019-09-03 21:27:33,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:33" (1/1) ... [2019-09-03 21:27:33,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:33" (1/1) ... [2019-09-03 21:27:33,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:33" (1/1) ... [2019-09-03 21:27:33,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-03 21:27:33,605 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-03 21:27:33,605 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-03 21:27:33,605 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-03 21:27:33,606 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:33" (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 [2019-09-03 21:27:33,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-03 21:27:33,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-03 21:27:33,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-03 21:27:33,664 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-03 21:27:33,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-03 21:27:33,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-03 21:27:33,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-03 21:27:33,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-03 21:27:33,665 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-03 21:27:33,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-03 21:27:33,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-03 21:27:33,902 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-03 21:27:33,902 INFO L283 CfgBuilder]: Removed 3 assume(true) statements. [2019-09-03 21:27:33,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 09:27:33 BoogieIcfgContainer [2019-09-03 21:27:33,916 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-03 21:27:33,917 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-03 21:27:33,917 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-03 21:27:33,918 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-03 21:27:33,919 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 09:27:33" (1/1) ... [2019-09-03 21:27:33,980 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-03 21:27:34,313 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-03 21:27:34,347 INFO L272 AbstractInterpreter]: Visited 37 different actions 85 times. Merged at 8 different actions 8 times. Never widened. Performed 165 root evaluator evaluations with a maximum evaluation depth of 9. Performed 165 inverse root evaluator evaluations with a maximum inverse evaluation depth of 9. Found 1 fixpoints after 1 different actions. Largest state had 16 variables. [2019-09-03 21:27:34,348 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-03 21:27:34,353 INFO L168 Benchmark]: Toolchain (without parser) took 1145.36 ms. Allocated memory was 138.9 MB in the beginning and 199.8 MB in the end (delta: 60.8 MB). Free memory was 85.3 MB in the beginning and 144.5 MB in the end (delta: -59.2 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. [2019-09-03 21:27:34,355 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.9 MB. Free memory was 103.6 MB in the beginning and 103.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-03 21:27:34,357 INFO L168 Benchmark]: CACSL2BoogieTranslator took 260.98 ms. Allocated memory is still 138.9 MB. Free memory was 85.1 MB in the beginning and 75.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-09-03 21:27:34,359 INFO L168 Benchmark]: Boogie Preprocessor took 137.87 ms. Allocated memory was 138.9 MB in the beginning and 199.8 MB in the end (delta: 60.8 MB). Free memory was 75.2 MB in the beginning and 176.7 MB in the end (delta: -101.5 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2019-09-03 21:27:34,361 INFO L168 Benchmark]: RCFGBuilder took 311.34 ms. Allocated memory is still 199.8 MB. Free memory was 176.7 MB in the beginning and 162.9 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2019-09-03 21:27:34,363 INFO L168 Benchmark]: Abstract Interpretation took 430.79 ms. Allocated memory is still 199.8 MB. Free memory was 162.9 MB in the beginning and 144.5 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 7.1 GB. [2019-09-03 21:27:34,374 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 138.9 MB. Free memory was 103.6 MB in the beginning and 103.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 260.98 ms. Allocated memory is still 138.9 MB. Free memory was 85.1 MB in the beginning and 75.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 137.87 ms. Allocated memory was 138.9 MB in the beginning and 199.8 MB in the end (delta: 60.8 MB). Free memory was 75.2 MB in the beginning and 176.7 MB in the end (delta: -101.5 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 311.34 ms. Allocated memory is still 199.8 MB. Free memory was 176.7 MB in the beginning and 162.9 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 430.79 ms. Allocated memory is still 199.8 MB. Free memory was 162.9 MB in the beginning and 144.5 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 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 x, y; [L15] int a, b, p, q, r, s; [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] COND TRUE !(b != 0) [L67] CALL __VERIFIER_assert(p*x - q*x + r*y - s*y == a) [L6] COND TRUE !(cond) [L8] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...