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/simple_2-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 04:43:52,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 04:43:52,339 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 04:43:52,352 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 04:43:52,352 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 04:43:52,353 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 04:43:52,355 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 04:43:52,356 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 04:43:52,358 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 04:43:52,359 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 04:43:52,360 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 04:43:52,363 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 04:43:52,364 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 04:43:52,365 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 04:43:52,368 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 04:43:52,369 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 04:43:52,371 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 04:43:52,372 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 04:43:52,377 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 04:43:52,378 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 04:43:52,382 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 04:43:52,383 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 04:43:52,385 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 04:43:52,386 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 04:43:52,392 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 04:43:52,407 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 04:43:52,409 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 04:43:52,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 04:43:52,412 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 [2019-10-15 04:43:52,432 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 04:43:52,432 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 04:43:52,434 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 04:43:52,434 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 04:43:52,435 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 04:43:52,435 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 04:43:52,435 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 04:43:52,435 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 04:43:52,435 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 04:43:52,436 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 04:43:52,437 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 04:43:52,437 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 04:43:52,437 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 04:43:52,438 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 04:43:52,438 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 04:43:52,438 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 04:43:52,438 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 04:43:52,438 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 04:43:52,439 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 04:43:52,439 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 04:43:52,439 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 04:43:52,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 04:43:52,439 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 04:43:52,440 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 04:43:52,440 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 04:43:52,440 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 04:43:52,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 04:43:52,440 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 04:43:52,441 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain [2019-10-15 04:43:52,748 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 04:43:52,761 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 04:43:52,765 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 04:43:52,766 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 04:43:52,767 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 04:43:52,768 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/simple_2-1.c [2019-10-15 04:43:52,838 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22336d50c/8f7e31029f7d4fc9bfde735b85556da8/FLAGc26ac5798 [2019-10-15 04:43:53,328 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 04:43:53,328 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/simple_2-1.c [2019-10-15 04:43:53,335 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22336d50c/8f7e31029f7d4fc9bfde735b85556da8/FLAGc26ac5798 [2019-10-15 04:43:53,661 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22336d50c/8f7e31029f7d4fc9bfde735b85556da8 [2019-10-15 04:43:53,669 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 04:43:53,671 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 04:43:53,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 04:43:53,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 04:43:53,676 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 04:43:53,677 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:43:53" (1/1) ... [2019-10-15 04:43:53,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e55f71c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:43:53, skipping insertion in model container [2019-10-15 04:43:53,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:43:53" (1/1) ... [2019-10-15 04:43:53,688 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 04:43:53,704 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 04:43:53,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 04:43:53,885 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 04:43:53,902 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 04:43:53,921 INFO L192 MainTranslator]: Completed translation [2019-10-15 04:43:53,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:43:53 WrapperNode [2019-10-15 04:43:53,922 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 04:43:53,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 04:43:53,923 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 04:43:53,923 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 04:43:53,937 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:43:53" (1/1) ... [2019-10-15 04:43:53,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:43:53" (1/1) ... [2019-10-15 04:43:54,028 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:43:53" (1/1) ... [2019-10-15 04:43:54,028 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:43:53" (1/1) ... [2019-10-15 04:43:54,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:43:53" (1/1) ... [2019-10-15 04:43:54,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:43:53" (1/1) ... [2019-10-15 04:43:54,037 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:43:53" (1/1) ... [2019-10-15 04:43:54,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 04:43:54,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 04:43:54,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 04:43:54,039 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 04:43:54,040 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:43:53" (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 [2019-10-15 04:43:54,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 04:43:54,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 04:43:54,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-15 04:43:54,092 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 04:43:54,092 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 04:43:54,092 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-15 04:43:54,092 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-15 04:43:54,092 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 04:43:54,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 04:43:54,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 04:43:54,254 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 04:43:54,254 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 04:43:54,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:43:54 BoogieIcfgContainer [2019-10-15 04:43:54,256 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 04:43:54,257 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-10-15 04:43:54,257 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-10-15 04:43:54,257 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-10-15 04:43:54,258 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:43:54" (1/1) ... [2019-10-15 04:43:54,281 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-15 04:43:54,352 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-10-15 04:43:54,384 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-10-15 04:43:54,403 INFO L272 AbstractInterpreter]: Visited 19 different actions 19 times. Never merged. Never widened. Performed 12 root evaluator evaluations with a maximum evaluation depth of 6. Performed 12 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 4 variables. [2019-10-15 04:43:54,403 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-10-15 04:43:54,407 INFO L168 Benchmark]: Toolchain (without parser) took 734.27 ms. Allocated memory was 143.7 MB in the beginning and 200.8 MB in the end (delta: 57.1 MB). Free memory was 101.8 MB in the beginning and 161.7 MB in the end (delta: -59.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-15 04:43:54,408 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 143.7 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 04:43:54,409 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.53 ms. Allocated memory is still 143.7 MB. Free memory was 101.6 MB in the beginning and 92.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-10-15 04:43:54,410 INFO L168 Benchmark]: Boogie Preprocessor took 115.95 ms. Allocated memory was 143.7 MB in the beginning and 200.8 MB in the end (delta: 57.1 MB). Free memory was 92.4 MB in the beginning and 180.2 MB in the end (delta: -87.9 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2019-10-15 04:43:54,414 INFO L168 Benchmark]: RCFGBuilder took 217.40 ms. Allocated memory is still 200.8 MB. Free memory was 180.2 MB in the beginning and 168.8 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2019-10-15 04:43:54,415 INFO L168 Benchmark]: Abstract Interpretation took 146.57 ms. Allocated memory is still 200.8 MB. Free memory was 168.8 MB in the beginning and 161.7 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 7.1 GB. [2019-10-15 04:43:54,419 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 143.7 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 250.53 ms. Allocated memory is still 143.7 MB. Free memory was 101.6 MB in the beginning and 92.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.95 ms. Allocated memory was 143.7 MB in the beginning and 200.8 MB in the end (delta: 57.1 MB). Free memory was 92.4 MB in the beginning and 180.2 MB in the end (delta: -87.9 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 217.40 ms. Allocated memory is still 200.8 MB. Free memory was 180.2 MB in the beginning and 168.8 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 146.57 ms. Allocated memory is still 200.8 MB. Free memory was 168.8 MB in the beginning and 161.7 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 6]: 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: [L12] unsigned int x = __VERIFIER_nondet_uint(); [L14] COND FALSE !(x < 0x0fffffff) [L18] CALL __VERIFIER_assert(x >= 0x0fffffff) [L5] COND TRUE !(cond) [L6] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...