/usr/bin/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-fb55353 [2019-11-07 06:57:06,309 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 06:57:06,312 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 06:57:06,330 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-07 06:57:06,375 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 [2019-11-07 06:57:06,389 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 06:57:06,389 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 06:57:06,390 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 06:57:06,391 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 06:57:06,391 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 06:57:06,391 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 06:57:06,391 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 06:57:06,392 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 06:57:06,392 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 06:57:06,392 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 06:57:06,392 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 06:57:06,392 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 06:57:06,392 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 06:57:06,393 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 06:57:06,393 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 06:57:06,393 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 06:57:06,393 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 06:57:06,393 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 06:57:06,394 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 06:57:06,394 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 06:57:06,394 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 06:57:06,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 06:57:06,394 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 06:57:06,395 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 06:57:06,395 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 06:57:06,395 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 06:57:06,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 06:57:06,395 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 06:57:06,395 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain [2019-11-07 06:57:06,699 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 06:57:06,722 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 06:57:06,725 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 06:57:06,727 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 06:57:06,727 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 06:57:06,729 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/phases_2-2.c [2019-11-07 06:57:06,802 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62002b563/4c69a03fee8d4c5583d42ddb5337362d/FLAG447b132ad [2019-11-07 06:57:07,278 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 06:57:07,280 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/phases_2-2.c [2019-11-07 06:57:07,286 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62002b563/4c69a03fee8d4c5583d42ddb5337362d/FLAG447b132ad [2019-11-07 06:57:07,631 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62002b563/4c69a03fee8d4c5583d42ddb5337362d [2019-11-07 06:57:07,640 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 06:57:07,645 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 06:57:07,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 06:57:07,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 06:57:07,650 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 06:57:07,651 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:57:07" (1/1) ... [2019-11-07 06:57:07,653 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e733c71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:07, skipping insertion in model container [2019-11-07 06:57:07,654 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:57:07" (1/1) ... [2019-11-07 06:57:07,662 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 06:57:07,683 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 06:57:07,867 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 06:57:07,878 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 06:57:07,902 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 06:57:07,916 INFO L192 MainTranslator]: Completed translation [2019-11-07 06:57:07,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:07 WrapperNode [2019-11-07 06:57:07,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 06:57:07,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 06:57:07,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 06:57:07,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 06:57:07,928 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:07" (1/1) ... [2019-11-07 06:57:07,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:07" (1/1) ... [2019-11-07 06:57:08,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:07" (1/1) ... [2019-11-07 06:57:08,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:07" (1/1) ... [2019-11-07 06:57:08,026 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:07" (1/1) ... [2019-11-07 06:57:08,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:07" (1/1) ... [2019-11-07 06:57:08,033 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:07" (1/1) ... [2019-11-07 06:57:08,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 06:57:08,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 06:57:08,041 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 06:57:08,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 06:57:08,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:07" (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 [2019-11-07 06:57:08,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 06:57:08,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 06:57:08,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-07 06:57:08,090 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 06:57:08,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 06:57:08,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-07 06:57:08,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-11-07 06:57:08,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-07 06:57:08,090 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 06:57:08,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 06:57:08,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 06:57:08,256 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 06:57:08,256 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-07 06:57:08,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:57:08 BoogieIcfgContainer [2019-11-07 06:57:08,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 06:57:08,259 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-11-07 06:57:08,259 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-11-07 06:57:08,259 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-11-07 06:57:08,260 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:57:08" (1/1) ... [2019-11-07 06:57:08,287 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-07 06:57:08,354 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-11-07 06:57:08,701 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-11-07 06:57:08,723 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. [2019-11-07 06:57:08,724 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-11-07 06:57:08,729 INFO L168 Benchmark]: Toolchain (without parser) took 1084.42 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 102.7 MB in the beginning and 130.5 MB in the end (delta: -27.7 MB). Peak memory consumption was 30.0 MB. Max. memory is 7.1 GB. [2019-11-07 06:57:08,730 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 144.2 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-11-07 06:57:08,732 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.30 ms. Allocated memory is still 144.2 MB. Free memory was 102.3 MB in the beginning and 92.7 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-11-07 06:57:08,734 INFO L168 Benchmark]: Boogie Preprocessor took 121.70 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 92.7 MB in the beginning and 180.8 MB in the end (delta: -88.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2019-11-07 06:57:08,737 INFO L168 Benchmark]: RCFGBuilder took 218.49 ms. Allocated memory is still 201.9 MB. Free memory was 180.1 MB in the beginning and 169.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2019-11-07 06:57:08,738 INFO L168 Benchmark]: Abstract Interpretation took 465.43 ms. Allocated memory is still 201.9 MB. Free memory was 169.3 MB in the beginning and 130.5 MB in the end (delta: 38.8 MB). Peak memory consumption was 38.8 MB. Max. memory is 7.1 GB. [2019-11-07 06:57:08,749 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 144.2 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 271.30 ms. Allocated memory is still 144.2 MB. Free memory was 102.3 MB in the beginning and 92.7 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 121.70 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 92.7 MB in the beginning and 180.8 MB in the end (delta: -88.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 218.49 ms. Allocated memory is still 201.9 MB. Free memory was 180.1 MB in the beginning and 169.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 465.43 ms. Allocated memory is still 201.9 MB. Free memory was 169.3 MB in the beginning and 130.5 MB in the end (delta: 38.8 MB). Peak memory consumption was 38.8 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...