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-acceleration/simple_3-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:47:27,174 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:47:27,176 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:47:27,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:47:27,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:47:27,189 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:47:27,190 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:47:27,192 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:47:27,194 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:47:27,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:47:27,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:47:27,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:47:27,197 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:47:27,198 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:47:27,199 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:47:27,201 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:47:27,201 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:47:27,202 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:47:27,204 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:47:27,206 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:47:27,208 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:47:27,209 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:47:27,210 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:47:27,211 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:47:27,214 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:47:27,214 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:47:27,214 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:47:27,215 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:47:27,216 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:47:27,217 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:47:27,217 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:47:27,218 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:47:27,219 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:47:27,220 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:47:27,221 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:47:27,221 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:47:27,222 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:47:27,222 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:47:27,222 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:47:27,223 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:47:27,224 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:47:27,224 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 [2019-09-20 13:47:27,239 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:47:27,239 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:47:27,240 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:47:27,240 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:47:27,241 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:47:27,241 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:47:27,241 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:47:27,241 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:47:27,241 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:47:27,242 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:47:27,242 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:47:27,243 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:47:27,243 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:47:27,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:47:27,243 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:47:27,243 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:47:27,243 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:47:27,244 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:47:27,244 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:47:27,244 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:47:27,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:47:27,245 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:47:27,245 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:47:27,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:47:27,245 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:47:27,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:47:27,246 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:47:27,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:47:27,246 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:47:27,246 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:47:27,292 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:47:27,309 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:47:27,315 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:47:27,317 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:47:27,317 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:47:27,318 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/simple_3-1.c [2019-09-20 13:47:27,390 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db530d872/f339b4caf8d64c55b37dadb8a5de2423/FLAG3600fb60c [2019-09-20 13:47:27,811 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:47:27,812 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/simple_3-1.c [2019-09-20 13:47:27,818 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db530d872/f339b4caf8d64c55b37dadb8a5de2423/FLAG3600fb60c [2019-09-20 13:47:28,191 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db530d872/f339b4caf8d64c55b37dadb8a5de2423 [2019-09-20 13:47:28,205 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:47:28,206 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:47:28,208 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:47:28,208 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:47:28,212 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:47:28,213 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:47:28" (1/1) ... [2019-09-20 13:47:28,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b20aa1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:28, skipping insertion in model container [2019-09-20 13:47:28,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:47:28" (1/1) ... [2019-09-20 13:47:28,227 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:47:28,247 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:47:28,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:47:28,468 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:47:28,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:47:28,502 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:47:28,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:28 WrapperNode [2019-09-20 13:47:28,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:47:28,504 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:47:28,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:47:28,504 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:47:28,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:28" (1/1) ... [2019-09-20 13:47:28,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:28" (1/1) ... [2019-09-20 13:47:28,606 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:28" (1/1) ... [2019-09-20 13:47:28,607 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:28" (1/1) ... [2019-09-20 13:47:28,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:28" (1/1) ... [2019-09-20 13:47:28,615 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:28" (1/1) ... [2019-09-20 13:47:28,616 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:28" (1/1) ... [2019-09-20 13:47:28,617 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:47:28,617 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:47:28,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:47:28,618 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:47:28,619 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:47:28" (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 [2019-09-20 13:47:28,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:47:28,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:47:28,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-20 13:47:28,672 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:47:28,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:47:28,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2019-09-20 13:47:28,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-20 13:47:28,673 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:47:28,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:47:28,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:47:28,842 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:47:28,843 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-20 13:47:28,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:47:28 BoogieIcfgContainer [2019-09-20 13:47:28,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:47:28,845 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-20 13:47:28,845 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-20 13:47:28,845 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-20 13:47:28,846 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:47:28" (1/1) ... [2019-09-20 13:47:28,879 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:47:28,945 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-20 13:47:30,078 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-20 13:47:30,112 INFO L272 AbstractInterpreter]: Visited 19 different actions 97 times. Merged at 4 different actions 24 times. Widened at 1 different actions 4 times. Performed 103 root evaluator evaluations with a maximum evaluation depth of 12. Performed 103 inverse root evaluator evaluations with a maximum inverse evaluation depth of 12. Found 7 fixpoints after 2 different actions. Largest state had 4 variables. [2019-09-20 13:47:30,113 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-20 13:47:30,120 INFO L168 Benchmark]: Toolchain (without parser) took 1910.77 ms. Allocated memory was 135.3 MB in the beginning and 268.4 MB in the end (delta: 133.2 MB). Free memory was 85.5 MB in the beginning and 104.9 MB in the end (delta: -19.4 MB). Peak memory consumption was 113.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:47:30,122 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 135.3 MB. Free memory was 103.3 MB in the beginning and 103.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:47:30,123 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.58 ms. Allocated memory is still 135.3 MB. Free memory was 85.1 MB in the beginning and 75.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:47:30,126 INFO L168 Benchmark]: Boogie Preprocessor took 113.24 ms. Allocated memory was 135.3 MB in the beginning and 198.2 MB in the end (delta: 62.9 MB). Free memory was 75.6 MB in the beginning and 175.7 MB in the end (delta: -100.1 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:47:30,128 INFO L168 Benchmark]: RCFGBuilder took 226.84 ms. Allocated memory is still 198.2 MB. Free memory was 175.7 MB in the beginning and 164.4 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:47:30,130 INFO L168 Benchmark]: Abstract Interpretation took 1268.19 ms. Allocated memory was 198.2 MB in the beginning and 268.4 MB in the end (delta: 70.3 MB). Free memory was 164.4 MB in the beginning and 104.9 MB in the end (delta: 59.4 MB). Peak memory consumption was 129.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:47:30,141 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 135.3 MB. Free memory was 103.3 MB in the beginning and 103.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 295.58 ms. Allocated memory is still 135.3 MB. Free memory was 85.1 MB in the beginning and 75.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.24 ms. Allocated memory was 135.3 MB in the beginning and 198.2 MB in the end (delta: 62.9 MB). Free memory was 75.6 MB in the beginning and 175.7 MB in the end (delta: -100.1 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 226.84 ms. Allocated memory is still 198.2 MB. Free memory was 175.7 MB in the beginning and 164.4 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 1268.19 ms. Allocated memory was 198.2 MB in the beginning and 268.4 MB in the end (delta: 70.3 MB). Free memory was 164.4 MB in the beginning and 104.9 MB in the end (delta: 59.4 MB). Peak memory consumption was 129.7 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 = 0; [L13] unsigned short N = __VERIFIER_nondet_ushort(); [L15] COND FALSE !(x < N) [L19] CALL __VERIFIER_assert(x % 2) [L5] COND TRUE !(cond) [L6] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...