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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/loop-invgen/half_2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-11 16:12:37,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-11 16:12:37,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-11 16:12:37,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-11 16:12:37,159 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-11 16:12:37,160 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-11 16:12:37,162 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-11 16:12:37,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-11 16:12:37,165 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-11 16:12:37,166 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-11 16:12:37,167 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-11 16:12:37,168 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-11 16:12:37,168 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-11 16:12:37,169 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-11 16:12:37,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-11 16:12:37,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-11 16:12:37,172 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-11 16:12:37,173 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-11 16:12:37,174 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-11 16:12:37,176 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-11 16:12:37,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-11 16:12:37,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-11 16:12:37,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-11 16:12:37,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-11 16:12:37,183 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-11 16:12:37,186 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-11 16:12:37,187 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-11 16:12:37,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-11 16:12:37,188 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-11 16:12:37,189 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-11 16:12:37,190 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-11 16:12:37,190 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-11 16:12:37,191 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-11 16:12:37,191 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-11 16:12:37,192 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-11 16:12:37,192 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-11 16:12:37,193 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-11 16:12:37,216 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-11 16:12:37,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-11 16:12:37,216 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-11 16:12:37,216 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-11 16:12:37,217 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-11 16:12:37,217 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-11 16:12:37,218 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-11 16:12:37,218 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-11 16:12:37,218 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-11 16:12:37,219 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-11 16:12:37,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-11 16:12:37,220 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-11 16:12:37,220 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-11 16:12:37,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-11 16:12:37,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-11 16:12:37,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-11 16:12:37,221 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-11 16:12:37,221 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-11 16:12:37,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-11 16:12:37,222 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-11 16:12:37,222 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-11 16:12:37,223 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-11 16:12:37,223 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-11 16:12:37,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-11 16:12:37,223 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-11 16:12:37,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-11 16:12:37,224 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-11 16:12:37,224 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-11 16:12:37,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-11 16:12:37,224 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-11 16:12:37,274 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-11 16:12:37,286 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-11 16:12:37,289 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-11 16:12:37,291 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-11 16:12:37,291 INFO L275 PluginConnector]: CDTParser initialized [2019-09-11 16:12:37,292 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/half_2.i [2019-09-11 16:12:37,352 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e3938cbf/f6e0ef3284704ea991a726b3f4f2461e/FLAG8980c99db [2019-09-11 16:12:37,778 INFO L306 CDTParser]: Found 1 translation units. [2019-09-11 16:12:37,779 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/half_2.i [2019-09-11 16:12:37,785 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e3938cbf/f6e0ef3284704ea991a726b3f4f2461e/FLAG8980c99db [2019-09-11 16:12:38,178 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e3938cbf/f6e0ef3284704ea991a726b3f4f2461e [2019-09-11 16:12:38,187 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-11 16:12:38,189 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-11 16:12:38,190 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-11 16:12:38,190 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-11 16:12:38,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-11 16:12:38,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:12:38" (1/1) ... [2019-09-11 16:12:38,197 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eabac37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:12:38, skipping insertion in model container [2019-09-11 16:12:38,197 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:12:38" (1/1) ... [2019-09-11 16:12:38,205 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-11 16:12:38,222 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-11 16:12:38,419 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:12:38,424 INFO L188 MainTranslator]: Completed pre-run [2019-09-11 16:12:38,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:12:38,451 INFO L192 MainTranslator]: Completed translation [2019-09-11 16:12:38,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:12:38 WrapperNode [2019-09-11 16:12:38,451 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-11 16:12:38,452 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-11 16:12:38,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-11 16:12:38,452 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-11 16:12:38,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:12:38" (1/1) ... [2019-09-11 16:12:38,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:12:38" (1/1) ... [2019-09-11 16:12:38,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:12:38" (1/1) ... [2019-09-11 16:12:38,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:12:38" (1/1) ... [2019-09-11 16:12:38,563 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:12:38" (1/1) ... [2019-09-11 16:12:38,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:12:38" (1/1) ... [2019-09-11 16:12:38,568 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:12:38" (1/1) ... [2019-09-11 16:12:38,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-11 16:12:38,570 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-11 16:12:38,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-11 16:12:38,571 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-11 16:12:38,572 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:12:38" (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 [2019-09-11 16:12:38,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-11 16:12:38,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-11 16:12:38,640 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-11 16:12:38,640 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-11 16:12:38,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-11 16:12:38,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-11 16:12:38,641 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-11 16:12:38,641 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-11 16:12:38,641 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-11 16:12:38,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-11 16:12:38,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-11 16:12:38,838 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-11 16:12:38,839 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-09-11 16:12:38,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:12:38 BoogieIcfgContainer [2019-09-11 16:12:38,840 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-11 16:12:38,848 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-11 16:12:38,849 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-11 16:12:38,849 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-11 16:12:38,852 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:12:38" (1/1) ... [2019-09-11 16:12:38,899 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-11 16:12:39,058 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-11 16:12:39,383 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-11 16:12:39,406 INFO L272 AbstractInterpreter]: Visited 27 different actions 148 times. Merged at 9 different actions 50 times. Widened at 3 different actions 6 times. Performed 213 root evaluator evaluations with a maximum evaluation depth of 11. Performed 213 inverse root evaluator evaluations with a maximum inverse evaluation depth of 11. Found 14 fixpoints after 4 different actions. Largest state had 9 variables. [2019-09-11 16:12:39,406 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-11 16:12:39,411 INFO L168 Benchmark]: Toolchain (without parser) took 1219.53 ms. Allocated memory was 134.7 MB in the beginning and 199.8 MB in the end (delta: 65.0 MB). Free memory was 87.2 MB in the beginning and 124.1 MB in the end (delta: -36.9 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. [2019-09-11 16:12:39,413 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 134.7 MB. Free memory was 105.9 MB in the beginning and 105.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-11 16:12:39,415 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.74 ms. Allocated memory is still 134.7 MB. Free memory was 87.0 MB in the beginning and 77.9 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-09-11 16:12:39,417 INFO L168 Benchmark]: Boogie Preprocessor took 118.29 ms. Allocated memory was 134.7 MB in the beginning and 199.8 MB in the end (delta: 65.0 MB). Free memory was 77.9 MB in the beginning and 177.3 MB in the end (delta: -99.4 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2019-09-11 16:12:39,419 INFO L168 Benchmark]: RCFGBuilder took 270.18 ms. Allocated memory is still 199.8 MB. Free memory was 177.3 MB in the beginning and 165.0 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. [2019-09-11 16:12:39,420 INFO L168 Benchmark]: Abstract Interpretation took 558.17 ms. Allocated memory is still 199.8 MB. Free memory was 165.0 MB in the beginning and 124.1 MB in the end (delta: 40.9 MB). Peak memory consumption was 40.9 MB. Max. memory is 7.1 GB. [2019-09-11 16:12:39,430 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 134.7 MB. Free memory was 105.9 MB in the beginning and 105.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 261.74 ms. Allocated memory is still 134.7 MB. Free memory was 87.0 MB in the beginning and 77.9 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.29 ms. Allocated memory was 134.7 MB in the beginning and 199.8 MB in the end (delta: 65.0 MB). Free memory was 77.9 MB in the beginning and 177.3 MB in the end (delta: -99.4 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 270.18 ms. Allocated memory is still 199.8 MB. Free memory was 177.3 MB in the beginning and 165.0 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 558.17 ms. Allocated memory is still 199.8 MB. Free memory was 165.0 MB in the beginning and 124.1 MB in the end (delta: 40.9 MB). Peak memory consumption was 40.9 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] int n,i,k; [L12] n = __VERIFIER_nondet_int() [L13] COND FALSE !(!(n <= 1000000)) [L14] k = n [L15] i = 0 [L16] COND FALSE !(i < n) [L20] int j = 0; [L21] COND TRUE j < n/2 [L22] CALL __VERIFIER_assert(k > 0) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...