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/ps2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-11 16:14:47,176 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-11 16:14:47,179 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-11 16:14:47,191 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-11 16:14:47,191 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-11 16:14:47,193 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-11 16:14:47,194 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-11 16:14:47,196 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-11 16:14:47,198 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-11 16:14:47,198 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-11 16:14:47,199 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-11 16:14:47,201 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-11 16:14:47,201 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-11 16:14:47,202 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-11 16:14:47,203 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-11 16:14:47,204 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-11 16:14:47,205 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-11 16:14:47,206 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-11 16:14:47,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-11 16:14:47,209 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-11 16:14:47,211 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-11 16:14:47,212 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-11 16:14:47,213 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-11 16:14:47,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-11 16:14:47,216 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-11 16:14:47,216 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-11 16:14:47,216 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-11 16:14:47,217 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-11 16:14:47,218 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-11 16:14:47,219 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-11 16:14:47,219 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-11 16:14:47,220 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-11 16:14:47,220 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-11 16:14:47,221 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-11 16:14:47,222 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-11 16:14:47,223 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-11 16:14:47,223 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-11 16:14:47,224 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-11 16:14:47,224 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-11 16:14:47,225 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-11 16:14:47,225 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-11 16:14:47,226 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 [2019-09-11 16:14:47,241 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-11 16:14:47,241 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-11 16:14:47,242 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-11 16:14:47,242 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-11 16:14:47,242 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-11 16:14:47,243 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-11 16:14:47,243 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-11 16:14:47,243 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-11 16:14:47,243 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-11 16:14:47,244 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-11 16:14:47,244 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-11 16:14:47,244 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-11 16:14:47,245 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-11 16:14:47,245 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-11 16:14:47,245 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-11 16:14:47,245 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-11 16:14:47,245 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-11 16:14:47,246 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-11 16:14:47,246 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-11 16:14:47,246 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-11 16:14:47,246 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-11 16:14:47,246 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-11 16:14:47,247 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-11 16:14:47,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-11 16:14:47,247 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-11 16:14:47,247 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-11 16:14:47,247 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-11 16:14:47,248 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-11 16:14:47,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-11 16:14:47,248 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-11 16:14:47,277 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-11 16:14:47,291 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-11 16:14:47,294 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-11 16:14:47,296 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-11 16:14:47,296 INFO L275 PluginConnector]: CDTParser initialized [2019-09-11 16:14:47,297 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/ps2.c [2019-09-11 16:14:47,361 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea90c042e/2d74e69eb93b45348a6ce09286e6d69b/FLAG6db7e1909 [2019-09-11 16:14:47,785 INFO L306 CDTParser]: Found 1 translation units. [2019-09-11 16:14:47,786 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/ps2.c [2019-09-11 16:14:47,793 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea90c042e/2d74e69eb93b45348a6ce09286e6d69b/FLAG6db7e1909 [2019-09-11 16:14:48,211 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea90c042e/2d74e69eb93b45348a6ce09286e6d69b [2019-09-11 16:14:48,226 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-11 16:14:48,229 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-11 16:14:48,231 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-11 16:14:48,231 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-11 16:14:48,236 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-11 16:14:48,237 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:14:48" (1/1) ... [2019-09-11 16:14:48,240 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63f255d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:48, skipping insertion in model container [2019-09-11 16:14:48,240 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:14:48" (1/1) ... [2019-09-11 16:14:48,247 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-11 16:14:48,267 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-11 16:14:48,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:14:48,466 INFO L188 MainTranslator]: Completed pre-run [2019-09-11 16:14:48,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:14:48,506 INFO L192 MainTranslator]: Completed translation [2019-09-11 16:14:48,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:48 WrapperNode [2019-09-11 16:14:48,507 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-11 16:14:48,508 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-11 16:14:48,508 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-11 16:14:48,508 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-11 16:14:48,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:48" (1/1) ... [2019-09-11 16:14:48,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:48" (1/1) ... [2019-09-11 16:14:48,618 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:48" (1/1) ... [2019-09-11 16:14:48,618 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:48" (1/1) ... [2019-09-11 16:14:48,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:48" (1/1) ... [2019-09-11 16:14:48,628 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:48" (1/1) ... [2019-09-11 16:14:48,630 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:48" (1/1) ... [2019-09-11 16:14:48,634 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-11 16:14:48,634 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-11 16:14:48,635 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-11 16:14:48,635 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-11 16:14:48,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:14:48" (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 [2019-09-11 16:14:48,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-11 16:14:48,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-11 16:14:48,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-11 16:14:48,690 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-11 16:14:48,691 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-11 16:14:48,691 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-11 16:14:48,691 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-11 16:14:48,691 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-11 16:14:48,691 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-11 16:14:48,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-11 16:14:48,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-11 16:14:48,877 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-11 16:14:48,878 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-11 16:14:48,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:14:48 BoogieIcfgContainer [2019-09-11 16:14:48,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-11 16:14:48,880 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-11 16:14:48,881 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-11 16:14:48,881 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-11 16:14:48,882 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:14:48" (1/1) ... [2019-09-11 16:14:48,939 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-11 16:14:49,132 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-11 16:14:49,160 INFO L272 AbstractInterpreter]: Visited 16 different actions 16 times. Never merged. Never widened. Performed 13 root evaluator evaluations with a maximum evaluation depth of 9. Performed 13 inverse root evaluator evaluations with a maximum inverse evaluation depth of 9. Never found a fixpoint. Largest state had 6 variables. [2019-09-11 16:14:49,160 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-11 16:14:49,164 INFO L168 Benchmark]: Toolchain (without parser) took 933.81 ms. Allocated memory was 141.6 MB in the beginning and 201.3 MB in the end (delta: 59.8 MB). Free memory was 89.1 MB in the beginning and 159.7 MB in the end (delta: -70.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-11 16:14:49,165 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 141.6 MB. Free memory was 107.9 MB in the beginning and 107.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-11 16:14:49,166 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.46 ms. Allocated memory is still 141.6 MB. Free memory was 88.9 MB in the beginning and 79.8 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-09-11 16:14:49,167 INFO L168 Benchmark]: Boogie Preprocessor took 126.29 ms. Allocated memory was 141.6 MB in the beginning and 201.3 MB in the end (delta: 59.8 MB). Free memory was 79.8 MB in the beginning and 179.3 MB in the end (delta: -99.5 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2019-09-11 16:14:49,168 INFO L168 Benchmark]: RCFGBuilder took 245.24 ms. Allocated memory is still 201.3 MB. Free memory was 178.9 MB in the beginning and 167.9 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2019-09-11 16:14:49,169 INFO L168 Benchmark]: Abstract Interpretation took 280.11 ms. Allocated memory is still 201.3 MB. Free memory was 167.3 MB in the beginning and 159.7 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 7.1 GB. [2019-09-11 16:14:49,174 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 141.6 MB. Free memory was 107.9 MB in the beginning and 107.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 276.46 ms. Allocated memory is still 141.6 MB. Free memory was 88.9 MB in the beginning and 79.8 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.29 ms. Allocated memory was 141.6 MB in the beginning and 201.3 MB in the end (delta: 59.8 MB). Free memory was 79.8 MB in the beginning and 179.3 MB in the end (delta: -99.5 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 245.24 ms. Allocated memory is still 201.3 MB. Free memory was 178.9 MB in the beginning and 167.9 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 280.11 ms. Allocated memory is still 201.3 MB. Free memory was 167.3 MB in the beginning and 159.7 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 7]: 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: [L13] int k, y, x, c; [L14] k = __VERIFIER_nondet_int() [L16] y = 0 [L17] x = 0 [L18] c = 0 [L20] COND TRUE 1 [L21] CALL __VERIFIER_assert((y * y) - 2 * x + y == 0) [L5] COND TRUE !(cond) [L7] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...