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/phases_2-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-14 00:38:42,160 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 00:38:42,163 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 00:38:42,181 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 00:38:42,181 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 00:38:42,183 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 00:38:42,185 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 00:38:42,193 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 00:38:42,197 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 00:38:42,200 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 00:38:42,203 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 00:38:42,204 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 00:38:42,204 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 00:38:42,206 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 00:38:42,209 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 00:38:42,210 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 00:38:42,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 00:38:42,212 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 00:38:42,214 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 00:38:42,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 00:38:42,223 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 00:38:42,226 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 00:38:42,228 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 00:38:42,229 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 00:38:42,231 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-14 00:38:42,242 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 00:38:42,243 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 00:38:42,244 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 00:38:42,245 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 00:38:42,278 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 00:38:42,278 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 00:38:42,279 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 00:38:42,279 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 00:38:42,279 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 00:38:42,280 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 00:38:42,280 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 00:38:42,280 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 00:38:42,280 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 00:38:42,280 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 00:38:42,281 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 00:38:42,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 00:38:42,285 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 00:38:42,285 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 00:38:42,286 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 00:38:42,286 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 00:38:42,286 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 00:38:42,286 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 00:38:42,286 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 00:38:42,287 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 00:38:42,287 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 00:38:42,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 00:38:42,287 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 00:38:42,287 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 00:38:42,288 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 00:38:42,288 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 00:38:42,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 00:38:42,289 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 00:38:42,290 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 00:38:42,557 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 00:38:42,579 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 00:38:42,582 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 00:38:42,583 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 00:38:42,584 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 00:38:42,585 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/phases_2-2.c [2019-10-14 00:38:42,658 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f71dd732/6e3af4c3b44a4f5697bada1a7ef51405/FLAGfa3991105 [2019-10-14 00:38:43,116 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 00:38:43,117 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/phases_2-2.c [2019-10-14 00:38:43,124 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f71dd732/6e3af4c3b44a4f5697bada1a7ef51405/FLAGfa3991105 [2019-10-14 00:38:43,494 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f71dd732/6e3af4c3b44a4f5697bada1a7ef51405 [2019-10-14 00:38:43,502 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 00:38:43,503 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 00:38:43,504 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 00:38:43,504 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 00:38:43,507 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 00:38:43,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:38:43" (1/1) ... [2019-10-14 00:38:43,511 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67e4cadf 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 00:38:43,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:38:43" (1/1) ... [2019-10-14 00:38:43,517 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 00:38:43,533 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 00:38:43,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 00:38:43,752 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 00:38:43,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 00:38:43,782 INFO L192 MainTranslator]: Completed translation [2019-10-14 00:38:43,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:38:43 WrapperNode [2019-10-14 00:38:43,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 00:38:43,784 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 00:38:43,784 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 00:38:43,784 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 00:38:43,869 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 00:38:43,869 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 00:38:43,876 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 00:38:43,877 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 00:38:43,880 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 00:38:43,885 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 00:38:43,886 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 00:38:43,887 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 00:38:43,888 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 00:38:43,888 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 00:38:43,888 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 00:38:43,889 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 00:38:43,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 00:38:43,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 00:38:43,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-14 00:38:43,935 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 00:38:43,935 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 00:38:43,935 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-14 00:38:43,935 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-14 00:38:43,935 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-14 00:38:43,936 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 00:38:43,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 00:38:43,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 00:38:44,112 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 00:38:44,112 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-14 00:38:44,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:38:44 BoogieIcfgContainer [2019-10-14 00:38:44,114 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 00:38:44,114 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-10-14 00:38:44,115 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-10-14 00:38:44,115 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-10-14 00:38:44,116 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 00:38:44,138 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-14 00:38:44,204 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-10-14 00:38:44,494 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-10-14 00:38:44,516 INFO L272 AbstractInterpreter]: Visited 23 different actions 86 times. Merged at 8 different actions 24 times. Widened at 1 different actions 2 times. Performed 97 root evaluator evaluations with a maximum evaluation depth of 12. Performed 97 inverse root evaluator evaluations with a maximum inverse evaluation depth of 12. Found 10 fixpoints after 3 different actions. Largest state had 5 variables. [2019-10-14 00:38:44,516 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-10-14 00:38:44,521 INFO L168 Benchmark]: Toolchain (without parser) took 1014.60 ms. Allocated memory was 141.6 MB in the beginning and 203.9 MB in the end (delta: 62.4 MB). Free memory was 105.3 MB in the beginning and 133.5 MB in the end (delta: -28.3 MB). Peak memory consumption was 34.1 MB. Max. memory is 7.1 GB. [2019-10-14 00:38:44,522 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 141.6 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-14 00:38:44,524 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.27 ms. Allocated memory is still 141.6 MB. Free memory was 105.1 MB in the beginning and 95.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-10-14 00:38:44,526 INFO L168 Benchmark]: Boogie Preprocessor took 103.83 ms. Allocated memory was 141.6 MB in the beginning and 203.9 MB in the end (delta: 62.4 MB). Free memory was 95.9 MB in the beginning and 182.5 MB in the end (delta: -86.6 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2019-10-14 00:38:44,528 INFO L168 Benchmark]: RCFGBuilder took 226.12 ms. Allocated memory is still 203.9 MB. Free memory was 182.5 MB in the beginning and 171.0 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2019-10-14 00:38:44,530 INFO L168 Benchmark]: Abstract Interpretation took 401.75 ms. Allocated memory is still 203.9 MB. Free memory was 171.0 MB in the beginning and 133.5 MB in the end (delta: 37.5 MB). Peak memory consumption was 37.5 MB. Max. memory is 7.1 GB. [2019-10-14 00:38:44,538 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 141.6 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 279.27 ms. Allocated memory is still 141.6 MB. Free memory was 105.1 MB in the beginning and 95.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 103.83 ms. Allocated memory was 141.6 MB in the beginning and 203.9 MB in the end (delta: 62.4 MB). Free memory was 95.9 MB in the beginning and 182.5 MB in the end (delta: -86.6 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 226.12 ms. Allocated memory is still 203.9 MB. Free memory was 182.5 MB in the beginning and 171.0 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 401.75 ms. Allocated memory is still 203.9 MB. Free memory was 171.0 MB in the beginning and 133.5 MB in the end (delta: 37.5 MB). Peak memory consumption was 37.5 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] unsigned int x = 1; [L14] unsigned int y = __VERIFIER_nondet_uint(); [L16] COND FALSE !(!(y > 0)) [L18] COND FALSE !(x < y) [L26] CALL __VERIFIER_assert(x == y) [L6] COND TRUE !(cond) [L7] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...