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-c6af20d [2019-09-03 21:27:42,129 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-03 21:27:42,131 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-03 21:27:42,143 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-03 21:27:42,143 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-03 21:27:42,144 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-03 21:27:42,145 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-03 21:27:42,147 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-03 21:27:42,149 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-03 21:27:42,150 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-03 21:27:42,151 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-03 21:27:42,152 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-03 21:27:42,153 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-03 21:27:42,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-03 21:27:42,154 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-03 21:27:42,156 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-03 21:27:42,156 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-03 21:27:42,157 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-03 21:27:42,159 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-03 21:27:42,161 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-03 21:27:42,162 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-03 21:27:42,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-03 21:27:42,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-03 21:27:42,165 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-03 21:27:42,167 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-03 21:27:42,170 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-03 21:27:42,171 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-03 21:27:42,172 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-03 21:27:42,172 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-03 21:27:42,173 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-03 21:27:42,174 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-03 21:27:42,175 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-03 21:27:42,175 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-03 21:27:42,175 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-03 21:27:42,176 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-03 21:27:42,177 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-03 21:27:42,177 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 21:27:42,194 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-03 21:27:42,194 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-03 21:27:42,195 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-03 21:27:42,195 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-03 21:27:42,198 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-03 21:27:42,198 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-03 21:27:42,198 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-03 21:27:42,198 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-03 21:27:42,198 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-03 21:27:42,199 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-03 21:27:42,199 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-03 21:27:42,200 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-03 21:27:42,200 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-03 21:27:42,200 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-03 21:27:42,202 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-03 21:27:42,202 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-03 21:27:42,202 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-03 21:27:42,202 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-03 21:27:42,203 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-03 21:27:42,203 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-03 21:27:42,203 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-03 21:27:42,203 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-03 21:27:42,203 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-03 21:27:42,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-03 21:27:42,204 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-03 21:27:42,204 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-03 21:27:42,204 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-03 21:27:42,204 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-03 21:27:42,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-03 21:27:42,205 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-03 21:27:42,255 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-03 21:27:42,267 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-03 21:27:42,270 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-03 21:27:42,272 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-03 21:27:42,272 INFO L275 PluginConnector]: CDTParser initialized [2019-09-03 21:27:42,273 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/ps2.c [2019-09-03 21:27:42,336 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b358a5a4/e9246a2fb00d43e19b510a50612279ad/FLAGf60d11a1f [2019-09-03 21:27:42,779 INFO L306 CDTParser]: Found 1 translation units. [2019-09-03 21:27:42,780 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/ps2.c [2019-09-03 21:27:42,786 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b358a5a4/e9246a2fb00d43e19b510a50612279ad/FLAGf60d11a1f [2019-09-03 21:27:43,206 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b358a5a4/e9246a2fb00d43e19b510a50612279ad [2019-09-03 21:27:43,220 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-03 21:27:43,221 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-03 21:27:43,225 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-03 21:27:43,225 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-03 21:27:43,229 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-03 21:27:43,230 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 09:27:43" (1/1) ... [2019-09-03 21:27:43,233 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@621c7695 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:43, skipping insertion in model container [2019-09-03 21:27:43,233 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 09:27:43" (1/1) ... [2019-09-03 21:27:43,241 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-03 21:27:43,262 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-03 21:27:43,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 21:27:43,469 INFO L188 MainTranslator]: Completed pre-run [2019-09-03 21:27:43,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 21:27:43,506 INFO L192 MainTranslator]: Completed translation [2019-09-03 21:27:43,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:43 WrapperNode [2019-09-03 21:27:43,507 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-03 21:27:43,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-03 21:27:43,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-03 21:27:43,508 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-03 21:27:43,615 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:43" (1/1) ... [2019-09-03 21:27:43,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:43" (1/1) ... [2019-09-03 21:27:43,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:43" (1/1) ... [2019-09-03 21:27:43,627 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:43" (1/1) ... [2019-09-03 21:27:43,632 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:43" (1/1) ... [2019-09-03 21:27:43,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:43" (1/1) ... [2019-09-03 21:27:43,640 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:43" (1/1) ... [2019-09-03 21:27:43,641 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-03 21:27:43,642 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-03 21:27:43,642 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-03 21:27:43,642 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-03 21:27:43,643 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:43" (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 21:27:43,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-03 21:27:43,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-03 21:27:43,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-03 21:27:43,690 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-03 21:27:43,691 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-03 21:27:43,691 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-03 21:27:43,691 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-03 21:27:43,691 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-03 21:27:43,691 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-03 21:27:43,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-03 21:27:43,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-03 21:27:43,855 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-03 21:27:43,855 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-03 21:27:43,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 09:27:43 BoogieIcfgContainer [2019-09-03 21:27:43,857 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-03 21:27:43,858 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-03 21:27:43,858 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-03 21:27:43,859 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-03 21:27:43,859 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 09:27:43" (1/1) ... [2019-09-03 21:27:43,898 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-03 21:27:44,061 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-03 21:27:44,080 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. [2019-09-03 21:27:44,081 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-03 21:27:44,084 INFO L168 Benchmark]: Toolchain (without parser) took 861.45 ms. Allocated memory was 140.5 MB in the beginning and 200.3 MB in the end (delta: 59.8 MB). Free memory was 86.4 MB in the beginning and 158.7 MB in the end (delta: -72.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-03 21:27:44,085 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory was 105.2 MB in the beginning and 105.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-03 21:27:44,086 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.35 ms. Allocated memory is still 140.5 MB. Free memory was 86.2 MB in the beginning and 77.2 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-09-03 21:27:44,088 INFO L168 Benchmark]: Boogie Preprocessor took 134.42 ms. Allocated memory was 140.5 MB in the beginning and 200.3 MB in the end (delta: 59.8 MB). Free memory was 77.2 MB in the beginning and 178.3 MB in the end (delta: -101.2 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2019-09-03 21:27:44,089 INFO L168 Benchmark]: RCFGBuilder took 215.52 ms. Allocated memory is still 200.3 MB. Free memory was 177.9 MB in the beginning and 166.9 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2019-09-03 21:27:44,090 INFO L168 Benchmark]: Abstract Interpretation took 222.79 ms. Allocated memory is still 200.3 MB. Free memory was 166.9 MB in the beginning and 158.7 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 7.1 GB. [2019-09-03 21:27:44,099 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory was 105.2 MB in the beginning and 105.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 282.35 ms. Allocated memory is still 140.5 MB. Free memory was 86.2 MB in the beginning and 77.2 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 134.42 ms. Allocated memory was 140.5 MB in the beginning and 200.3 MB in the end (delta: 59.8 MB). Free memory was 77.2 MB in the beginning and 178.3 MB in the end (delta: -101.2 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 215.52 ms. Allocated memory is still 200.3 MB. Free memory was 177.9 MB in the beginning and 166.9 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 222.79 ms. Allocated memory is still 200.3 MB. Free memory was 166.9 MB in the beginning and 158.7 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 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...