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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain -i ../../../trunk/examples/svcomp/loop-acceleration/nested_1-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-14 00:38:42,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 00:38:42,136 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 00:38:42,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 00:38:42,154 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 00:38:42,156 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 00:38:42,157 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 00:38:42,166 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 00:38:42,170 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 00:38:42,173 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 00:38:42,174 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 00:38:42,176 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 00:38:42,176 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 00:38:42,178 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 00:38:42,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 00:38:42,181 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 00:38:42,183 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 00:38:42,183 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 00:38:42,185 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 00:38:42,187 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 00:38:42,188 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 00:38:42,189 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 00:38:42,190 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 00:38:42,191 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 00:38:42,193 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 00:38:42,193 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 00:38:42,193 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 00:38:42,194 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 00:38:42,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 00:38:42,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 00:38:42,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 00:38:42,196 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 00:38:42,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 00:38:42,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 00:38:42,198 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 00:38:42,199 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 00:38:42,199 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 00:38:42,200 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 00:38:42,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 00:38:42,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 00:38:42,201 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 00:38:42,202 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-14 00:38:42,230 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 00:38:42,231 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 00:38:42,232 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 00:38:42,232 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 00:38:42,232 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 00:38:42,233 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 00:38:42,233 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 00:38:42,233 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 00:38:42,233 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 00:38:42,233 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 00:38:42,234 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 00:38:42,234 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 00:38:42,234 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 00:38:42,239 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 00:38:42,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 00:38:42,240 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 00:38:42,240 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 00:38:42,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 00:38:42,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 00:38:42,240 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 00:38:42,240 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 00:38:42,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 00:38:42,241 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 00:38:42,241 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 00:38:42,241 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 00:38:42,242 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 00:38:42,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 00:38:42,242 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 00:38:42,242 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain [2019-10-14 00:38:42,496 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 00:38:42,511 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 00:38:42,514 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 00:38:42,516 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 00:38:42,517 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 00:38:42,518 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/nested_1-1.c [2019-10-14 00:38:42,592 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/490d2d3a6/bec546d7279842c496b9813f306479a7/FLAG1b9619b70 [2019-10-14 00:38:43,056 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 00:38:43,056 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/nested_1-1.c [2019-10-14 00:38:43,063 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/490d2d3a6/bec546d7279842c496b9813f306479a7/FLAG1b9619b70 [2019-10-14 00:38:43,477 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/490d2d3a6/bec546d7279842c496b9813f306479a7 [2019-10-14 00:38:43,486 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 00:38:43,488 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 00:38:43,489 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 00:38:43,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 00:38:43,493 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 00:38:43,494 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:38:43" (1/1) ... [2019-10-14 00:38:43,497 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cfc3857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:38:43, skipping insertion in model container [2019-10-14 00:38:43,497 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:38:43" (1/1) ... [2019-10-14 00:38:43,505 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 00:38:43,520 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 00:38:43,688 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 00:38:43,691 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 00:38:43,705 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 00:38:43,715 INFO L192 MainTranslator]: Completed translation [2019-10-14 00:38:43,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:38:43 WrapperNode [2019-10-14 00:38:43,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 00:38:43,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 00:38:43,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 00:38:43,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 00:38:43,817 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:38:43" (1/1) ... [2019-10-14 00:38:43,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:38:43" (1/1) ... [2019-10-14 00:38:43,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:38:43" (1/1) ... [2019-10-14 00:38:43,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:38:43" (1/1) ... [2019-10-14 00:38:43,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:38:43" (1/1) ... [2019-10-14 00:38:43,829 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:38:43" (1/1) ... [2019-10-14 00:38:43,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:38:43" (1/1) ... [2019-10-14 00:38:43,831 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 00:38:43,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 00:38:43,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 00:38:43,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 00:38:43,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:38:43" (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 [2019-10-14 00:38:43,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 00:38:43,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 00:38:43,884 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-14 00:38:43,884 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 00:38:43,884 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 00:38:43,884 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-14 00:38:43,884 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 00:38:43,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 00:38:43,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 00:38:44,052 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 00:38:44,053 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-14 00:38:44,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:38:44 BoogieIcfgContainer [2019-10-14 00:38:44,054 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 00:38:44,055 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-10-14 00:38:44,055 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-10-14 00:38:44,055 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-10-14 00:38:44,056 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:38:44" (1/1) ... [2019-10-14 00:38:44,082 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-14 00:38:44,145 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-10-14 00:38:45,710 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-10-14 00:38:45,729 INFO L272 AbstractInterpreter]: Visited 23 different actions 188 times. Merged at 7 different actions 60 times. Widened at 3 different actions 16 times. Performed 322 root evaluator evaluations with a maximum evaluation depth of 12. Performed 322 inverse root evaluator evaluations with a maximum inverse evaluation depth of 12. Found 23 fixpoints after 4 different actions. Largest state had 5 variables. [2019-10-14 00:38:45,730 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-10-14 00:38:45,735 INFO L168 Benchmark]: Toolchain (without parser) took 2243.67 ms. Allocated memory was 146.3 MB in the beginning and 280.5 MB in the end (delta: 134.2 MB). Free memory was 102.7 MB in the beginning and 123.2 MB in the end (delta: -20.5 MB). Peak memory consumption was 113.7 MB. Max. memory is 7.1 GB. [2019-10-14 00:38:45,736 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 146.3 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-14 00:38:45,738 INFO L168 Benchmark]: CACSL2BoogieTranslator took 227.69 ms. Allocated memory is still 146.3 MB. Free memory was 102.5 MB in the beginning and 93.2 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-10-14 00:38:45,740 INFO L168 Benchmark]: Boogie Preprocessor took 114.05 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 93.2 MB in the beginning and 182.8 MB in the end (delta: -89.6 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-10-14 00:38:45,742 INFO L168 Benchmark]: RCFGBuilder took 223.05 ms. Allocated memory is still 203.9 MB. Free memory was 182.8 MB in the beginning and 171.1 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2019-10-14 00:38:45,743 INFO L168 Benchmark]: Abstract Interpretation took 1675.17 ms. Allocated memory was 203.9 MB in the beginning and 280.5 MB in the end (delta: 76.5 MB). Free memory was 171.1 MB in the beginning and 123.2 MB in the end (delta: 48.0 MB). Peak memory consumption was 124.5 MB. Max. memory is 7.1 GB. [2019-10-14 00:38:45,753 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 146.3 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 227.69 ms. Allocated memory is still 146.3 MB. Free memory was 102.5 MB in the beginning and 93.2 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.05 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 93.2 MB in the beginning and 182.8 MB in the end (delta: -89.6 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 223.05 ms. Allocated memory is still 203.9 MB. Free memory was 182.8 MB in the beginning and 171.1 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 1675.17 ms. Allocated memory was 203.9 MB in the beginning and 280.5 MB in the end (delta: 76.5 MB). Free memory was 171.1 MB in the beginning and 123.2 MB in the end (delta: 48.0 MB). Peak memory consumption was 124.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 5]: 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: [L11] unsigned int x = 0; [L12] unsigned int y = 0; [L14] COND FALSE !(x < 0x0fffffff) [L24] CALL __VERIFIER_assert(x % 2) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...