/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_2-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 06:57:05,948 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 06:57:05,950 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 06:57:05,962 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-07 06:57:06,009 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 06:57:06,029 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 06:57:06,029 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 06:57:06,031 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 06:57:06,031 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 06:57:06,031 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 06:57:06,032 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 06:57:06,032 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 06:57:06,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 06:57:06,032 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 06:57:06,032 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 06:57:06,033 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 06:57:06,033 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 06:57:06,034 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 06:57:06,034 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 06:57:06,034 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 06:57:06,034 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 06:57:06,035 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 06:57:06,035 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 06:57:06,035 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 06:57:06,035 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 06:57:06,035 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 06:57:06,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 06:57:06,036 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 06:57:06,036 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 06:57:06,036 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 06:57:06,036 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 06:57:06,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 06:57:06,037 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 06:57:06,037 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 06:57:06,325 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 06:57:06,337 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 06:57:06,341 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 06:57:06,342 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 06:57:06,343 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 06:57:06,344 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/phases_2-1.c [2019-11-07 06:57:06,405 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/629d87ce3/e20cb3b6dbe2439fb16921acfd4d9530/FLAGf6ae473c2 [2019-11-07 06:57:06,808 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 06:57:06,809 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/phases_2-1.c [2019-11-07 06:57:06,815 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/629d87ce3/e20cb3b6dbe2439fb16921acfd4d9530/FLAGf6ae473c2 [2019-11-07 06:57:07,188 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/629d87ce3/e20cb3b6dbe2439fb16921acfd4d9530 [2019-11-07 06:57:07,198 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 06:57:07,199 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 06:57:07,201 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 06:57:07,201 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 06:57:07,204 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 06:57:07,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:57:07" (1/1) ... [2019-11-07 06:57:07,208 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39efa35e 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 06:57:07,208 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:57:07" (1/1) ... [2019-11-07 06:57:07,216 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 06:57:07,236 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 06:57:07,416 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 06:57:07,420 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 06:57:07,436 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 06:57:07,450 INFO L192 MainTranslator]: Completed translation [2019-11-07 06:57:07,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:07 WrapperNode [2019-11-07 06:57:07,451 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 06:57:07,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 06:57:07,451 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 06:57:07,452 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 06:57:07,545 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 06:57:07,545 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 06:57:07,551 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 06:57:07,553 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 06:57:07,561 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 06:57:07,567 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 06:57:07,568 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 06:57:07,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 06:57:07,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 06:57:07,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 06:57:07,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 06:57:07,573 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 06:57:07,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 06:57:07,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 06:57:07,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-07 06:57:07,628 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 06:57:07,628 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 06:57:07,628 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-07 06:57:07,628 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-11-07 06:57:07,628 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-07 06:57:07,629 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 06:57:07,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 06:57:07,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 06:57:07,812 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 06:57:07,812 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-07 06:57:07,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:57:07 BoogieIcfgContainer [2019-11-07 06:57:07,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 06:57:07,814 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-11-07 06:57:07,814 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-11-07 06:57:07,815 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-11-07 06:57:07,815 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:57:07" (1/1) ... [2019-11-07 06:57:07,844 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-07 06:57:07,922 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-11-07 06:57:08,275 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-11-07 06:57:08,298 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 06:57:08,298 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-11-07 06:57:08,303 INFO L168 Benchmark]: Toolchain (without parser) took 1100.97 ms. Allocated memory was 143.7 MB in the beginning and 201.3 MB in the end (delta: 57.7 MB). Free memory was 101.3 MB in the beginning and 127.8 MB in the end (delta: -26.4 MB). Peak memory consumption was 31.2 MB. Max. memory is 7.1 GB. [2019-11-07 06:57:08,304 INFO L168 Benchmark]: CDTParser took 0.18 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. [2019-11-07 06:57:08,306 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.43 ms. Allocated memory is still 143.7 MB. Free memory was 100.9 MB in the beginning and 91.7 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-11-07 06:57:08,309 INFO L168 Benchmark]: Boogie Preprocessor took 120.25 ms. Allocated memory was 143.7 MB in the beginning and 201.3 MB in the end (delta: 57.7 MB). Free memory was 91.7 MB in the beginning and 179.5 MB in the end (delta: -87.8 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-11-07 06:57:08,311 INFO L168 Benchmark]: RCFGBuilder took 241.88 ms. Allocated memory is still 201.3 MB. Free memory was 179.5 MB in the beginning and 168.1 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2019-11-07 06:57:08,313 INFO L168 Benchmark]: Abstract Interpretation took 484.19 ms. Allocated memory is still 201.3 MB. Free memory was 168.1 MB in the beginning and 127.8 MB in the end (delta: 40.4 MB). Peak memory consumption was 40.4 MB. Max. memory is 7.1 GB. [2019-11-07 06:57:08,324 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 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 250.43 ms. Allocated memory is still 143.7 MB. Free memory was 100.9 MB in the beginning and 91.7 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.25 ms. Allocated memory was 143.7 MB in the beginning and 201.3 MB in the end (delta: 57.7 MB). Free memory was 91.7 MB in the beginning and 179.5 MB in the end (delta: -87.8 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 241.88 ms. Allocated memory is still 201.3 MB. Free memory was 179.5 MB in the beginning and 168.1 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 484.19 ms. Allocated memory is still 201.3 MB. Free memory was 168.1 MB in the beginning and 127.8 MB in the end (delta: 40.4 MB). Peak memory consumption was 40.4 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...