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/prod4br.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c6af20d [2019-09-03 21:27:41,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-03 21:27:41,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-03 21:27:41,220 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-03 21:27:41,229 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-03 21:27:41,230 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-03 21:27:41,231 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-03 21:27:41,232 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-03 21:27:41,233 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-03 21:27:41,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-03 21:27:41,235 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-03 21:27:41,237 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-03 21:27:41,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-03 21:27:41,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-03 21:27:41,240 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-03 21:27:41,241 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-03 21:27:41,243 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-03 21:27:41,250 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-03 21:27:41,251 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-03 21:27:41,252 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-03 21:27:41,253 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 21:27:41,267 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-03 21:27:41,267 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-03 21:27:41,268 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-03 21:27:41,268 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-03 21:27:41,269 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-03 21:27:41,269 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-03 21:27:41,269 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-03 21:27:41,269 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-03 21:27:41,269 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-03 21:27:41,270 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-03 21:27:41,270 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-03 21:27:41,270 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-03 21:27:41,271 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-03 21:27:41,271 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-03 21:27:41,271 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-03 21:27:41,271 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-03 21:27:41,271 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-03 21:27:41,271 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-03 21:27:41,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-03 21:27:41,272 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-03 21:27:41,272 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-03 21:27:41,272 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-03 21:27:41,272 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-03 21:27:41,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-03 21:27:41,273 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-03 21:27:41,273 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-03 21:27:41,273 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-03 21:27:41,273 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-03 21:27:41,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-03 21:27:41,274 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-03 21:27:41,302 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-03 21:27:41,315 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-03 21:27:41,319 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-03 21:27:41,321 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-03 21:27:41,321 INFO L275 PluginConnector]: CDTParser initialized [2019-09-03 21:27:41,322 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/prod4br.c [2019-09-03 21:27:41,398 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/672c1dadc/9bae4b9c15cd4e9ea9afc7c8827ce543/FLAGdf2de6be7 [2019-09-03 21:27:41,879 INFO L306 CDTParser]: Found 1 translation units. [2019-09-03 21:27:41,880 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/prod4br.c [2019-09-03 21:27:41,891 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/672c1dadc/9bae4b9c15cd4e9ea9afc7c8827ce543/FLAGdf2de6be7 [2019-09-03 21:27:42,227 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/672c1dadc/9bae4b9c15cd4e9ea9afc7c8827ce543 [2019-09-03 21:27:42,237 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-03 21:27:42,238 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-03 21:27:42,240 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-03 21:27:42,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-03 21:27:42,243 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-03 21:27:42,244 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 09:27:42" (1/1) ... [2019-09-03 21:27:42,247 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a823ade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:42, skipping insertion in model container [2019-09-03 21:27:42,248 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 09:27:42" (1/1) ... [2019-09-03 21:27:42,256 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-03 21:27:42,275 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-03 21:27:42,467 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 21:27:42,471 INFO L188 MainTranslator]: Completed pre-run [2019-09-03 21:27:42,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 21:27:42,503 INFO L192 MainTranslator]: Completed translation [2019-09-03 21:27:42,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:42 WrapperNode [2019-09-03 21:27:42,504 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-03 21:27:42,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-03 21:27:42,505 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-03 21:27:42,505 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-03 21:27:42,608 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:42" (1/1) ... [2019-09-03 21:27:42,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:42" (1/1) ... [2019-09-03 21:27:42,614 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:42" (1/1) ... [2019-09-03 21:27:42,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:42" (1/1) ... [2019-09-03 21:27:42,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:42" (1/1) ... [2019-09-03 21:27:42,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:42" (1/1) ... [2019-09-03 21:27:42,626 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:42" (1/1) ... [2019-09-03 21:27:42,627 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-03 21:27:42,628 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-03 21:27:42,628 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-03 21:27:42,628 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-03 21:27:42,629 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:42" (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 21:27:42,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-03 21:27:42,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-03 21:27:42,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-03 21:27:42,688 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-03 21:27:42,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-03 21:27:42,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-03 21:27:42,689 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-03 21:27:42,689 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-03 21:27:42,689 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-03 21:27:42,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-03 21:27:42,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-03 21:27:42,912 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-03 21:27:42,912 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-03 21:27:42,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 09:27:42 BoogieIcfgContainer [2019-09-03 21:27:42,914 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-03 21:27:42,915 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-03 21:27:42,915 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-03 21:27:42,915 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-03 21:27:42,916 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 09:27:42" (1/1) ... [2019-09-03 21:27:42,947 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-03 21:27:43,164 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-03 21:27:46,202 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-03 21:27:46,228 INFO L272 AbstractInterpreter]: Visited 32 different actions 421 times. Merged at 14 different actions 107 times. Widened at 3 different actions 6 times. Performed 748 root evaluator evaluations with a maximum evaluation depth of 12. Performed 748 inverse root evaluator evaluations with a maximum inverse evaluation depth of 12. Found 43 fixpoints after 5 different actions. Largest state had 9 variables. [2019-09-03 21:27:46,229 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-03 21:27:46,234 INFO L168 Benchmark]: Toolchain (without parser) took 3992.25 ms. Allocated memory was 140.5 MB in the beginning and 357.6 MB in the end (delta: 217.1 MB). Free memory was 86.6 MB in the beginning and 240.9 MB in the end (delta: -154.3 MB). Peak memory consumption was 62.8 MB. Max. memory is 7.1 GB. [2019-09-03 21:27:46,235 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory was 105.4 MB in the beginning and 105.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-03 21:27:46,237 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.93 ms. Allocated memory is still 140.5 MB. Free memory was 86.4 MB in the beginning and 76.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-09-03 21:27:46,239 INFO L168 Benchmark]: Boogie Preprocessor took 122.75 ms. Allocated memory was 140.5 MB in the beginning and 199.8 MB in the end (delta: 59.2 MB). Free memory was 76.7 MB in the beginning and 176.9 MB in the end (delta: -100.2 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2019-09-03 21:27:46,241 INFO L168 Benchmark]: RCFGBuilder took 286.37 ms. Allocated memory is still 199.8 MB. Free memory was 176.9 MB in the beginning and 164.1 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2019-09-03 21:27:46,243 INFO L168 Benchmark]: Abstract Interpretation took 3314.14 ms. Allocated memory was 199.8 MB in the beginning and 357.6 MB in the end (delta: 157.8 MB). Free memory was 163.5 MB in the beginning and 240.9 MB in the end (delta: -77.3 MB). Peak memory consumption was 80.5 MB. Max. memory is 7.1 GB. [2019-09-03 21:27:46,254 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 140.5 MB. Free memory was 105.4 MB in the beginning and 105.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 264.93 ms. Allocated memory is still 140.5 MB. Free memory was 86.4 MB in the beginning and 76.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.75 ms. Allocated memory was 140.5 MB in the beginning and 199.8 MB in the end (delta: 59.2 MB). Free memory was 76.7 MB in the beginning and 176.9 MB in the end (delta: -100.2 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 286.37 ms. Allocated memory is still 199.8 MB. Free memory was 176.9 MB in the beginning and 164.1 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 3314.14 ms. Allocated memory was 199.8 MB in the beginning and 357.6 MB in the end (delta: 157.8 MB). Free memory was 163.5 MB in the beginning and 240.9 MB in the end (delta: -77.3 MB). Peak memory consumption was 80.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 9]: 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: [L15] int x, y; [L16] int a, b, p, q; [L18] x = __VERIFIER_nondet_int() [L19] y = __VERIFIER_nondet_int() [L22] a = x [L23] b = y [L24] p = 1 [L25] q = 0 [L27] COND TRUE 1 [L28] CALL __VERIFIER_assert(q + a * b * p == x * y) [L7] COND TRUE !(cond) [L9] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...