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_2-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c6af20d [2019-09-03 21:26:13,947 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-03 21:26:13,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-03 21:26:13,962 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-03 21:26:13,962 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-03 21:26:13,963 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-03 21:26:13,965 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-03 21:26:13,967 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-03 21:26:13,968 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-03 21:26:13,969 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-03 21:26:13,970 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-03 21:26:13,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-03 21:26:13,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-03 21:26:13,973 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-03 21:26:13,974 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-03 21:26:13,975 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-03 21:26:13,976 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-03 21:26:13,977 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-03 21:26:13,979 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-03 21:26:13,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-03 21:26:13,986 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-03 21:26:13,987 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-03 21:26:13,991 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-03 21:26:13,995 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-03 21:26:13,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-03 21:26:13,998 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-03 21:26:13,998 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-03 21:26:13,999 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-03 21:26:14,000 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-03 21:26:14,000 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-03 21:26:14,001 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-03 21:26:14,003 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-03 21:26:14,003 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-03 21:26:14,004 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-03 21:26:14,006 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-03 21:26:14,007 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-03 21:26:14,008 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-03 21:26:14,008 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-03 21:26:14,008 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-03 21:26:14,009 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-03 21:26:14,010 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-03 21:26:14,012 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 [2019-09-03 21:26:14,036 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-03 21:26:14,037 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-03 21:26:14,037 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-03 21:26:14,038 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-03 21:26:14,038 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-03 21:26:14,039 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-03 21:26:14,039 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-03 21:26:14,039 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-03 21:26:14,039 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-03 21:26:14,040 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-03 21:26:14,041 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-03 21:26:14,042 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-03 21:26:14,042 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-03 21:26:14,042 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-03 21:26:14,043 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-03 21:26:14,043 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-03 21:26:14,044 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-03 21:26:14,044 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-03 21:26:14,044 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-03 21:26:14,045 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-03 21:26:14,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-03 21:26:14,045 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-03 21:26:14,045 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-03 21:26:14,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-03 21:26:14,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-03 21:26:14,046 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-03 21:26:14,046 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-03 21:26:14,047 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-03 21:26:14,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-03 21:26:14,047 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-03 21:26:14,088 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-03 21:26:14,102 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-03 21:26:14,106 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-03 21:26:14,107 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-03 21:26:14,108 INFO L275 PluginConnector]: CDTParser initialized [2019-09-03 21:26:14,109 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/simple_2-2.c [2019-09-03 21:26:14,177 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7baf3fc3/f1934774480e4b1ab4d487430c835899/FLAGdf401a38f [2019-09-03 21:26:14,679 INFO L306 CDTParser]: Found 1 translation units. [2019-09-03 21:26:14,680 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/simple_2-2.c [2019-09-03 21:26:14,687 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7baf3fc3/f1934774480e4b1ab4d487430c835899/FLAGdf401a38f [2019-09-03 21:26:15,008 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7baf3fc3/f1934774480e4b1ab4d487430c835899 [2019-09-03 21:26:15,020 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-03 21:26:15,022 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-03 21:26:15,025 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-03 21:26:15,025 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-03 21:26:15,028 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-03 21:26:15,029 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 09:26:15" (1/1) ... [2019-09-03 21:26:15,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e8bb312 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:15, skipping insertion in model container [2019-09-03 21:26:15,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 09:26:15" (1/1) ... [2019-09-03 21:26:15,040 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-03 21:26:15,054 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-03 21:26:15,277 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 21:26:15,291 INFO L188 MainTranslator]: Completed pre-run [2019-09-03 21:26:15,315 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 21:26:15,340 INFO L192 MainTranslator]: Completed translation [2019-09-03 21:26:15,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:15 WrapperNode [2019-09-03 21:26:15,342 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-03 21:26:15,343 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-03 21:26:15,343 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-03 21:26:15,344 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-03 21:26:15,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:15" (1/1) ... [2019-09-03 21:26:15,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:15" (1/1) ... [2019-09-03 21:26:15,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:15" (1/1) ... [2019-09-03 21:26:15,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:15" (1/1) ... [2019-09-03 21:26:15,469 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:15" (1/1) ... [2019-09-03 21:26:15,476 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:15" (1/1) ... [2019-09-03 21:26:15,477 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:15" (1/1) ... [2019-09-03 21:26:15,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-03 21:26:15,479 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-03 21:26:15,479 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-03 21:26:15,479 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-03 21:26:15,480 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:15" (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 [2019-09-03 21:26:15,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-03 21:26:15,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-03 21:26:15,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-03 21:26:15,555 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-03 21:26:15,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-03 21:26:15,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-03 21:26:15,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-03 21:26:15,555 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-03 21:26:15,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-03 21:26:15,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-03 21:26:15,774 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-03 21:26:15,774 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-03 21:26:15,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 09:26:15 BoogieIcfgContainer [2019-09-03 21:26:15,776 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-03 21:26:15,779 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-03 21:26:15,780 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-03 21:26:15,780 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-03 21:26:15,781 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 09:26:15" (1/1) ... [2019-09-03 21:26:15,818 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-03 21:26:15,908 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-03 21:26:15,945 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-03 21:26:15,962 INFO L272 AbstractInterpreter]: Visited 19 different actions 19 times. Never merged. Never widened. Performed 12 root evaluator evaluations with a maximum evaluation depth of 7. Performed 12 inverse root evaluator evaluations with a maximum inverse evaluation depth of 7. Found 1 fixpoints after 1 different actions. Largest state had 4 variables. [2019-09-03 21:26:15,963 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-03 21:26:15,966 INFO L168 Benchmark]: Toolchain (without parser) took 942.68 ms. Allocated memory was 130.5 MB in the beginning and 198.2 MB in the end (delta: 67.6 MB). Free memory was 87.1 MB in the beginning and 156.8 MB in the end (delta: -69.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-03 21:26:15,967 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 130.5 MB. Free memory was 104.8 MB in the beginning and 104.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-03 21:26:15,970 INFO L168 Benchmark]: CACSL2BoogieTranslator took 318.05 ms. Allocated memory is still 130.5 MB. Free memory was 86.9 MB in the beginning and 77.9 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:15,971 INFO L168 Benchmark]: Boogie Preprocessor took 135.29 ms. Allocated memory was 130.5 MB in the beginning and 198.2 MB in the end (delta: 67.6 MB). Free memory was 77.9 MB in the beginning and 175.0 MB in the end (delta: -97.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:15,973 INFO L168 Benchmark]: RCFGBuilder took 296.91 ms. Allocated memory is still 198.2 MB. Free memory was 175.0 MB in the beginning and 163.9 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:15,974 INFO L168 Benchmark]: Abstract Interpretation took 183.56 ms. Allocated memory is still 198.2 MB. Free memory was 163.9 MB in the beginning and 156.8 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:15,981 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 130.5 MB. Free memory was 104.8 MB in the beginning and 104.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 318.05 ms. Allocated memory is still 130.5 MB. Free memory was 86.9 MB in the beginning and 77.9 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 135.29 ms. Allocated memory was 130.5 MB in the beginning and 198.2 MB in the end (delta: 67.6 MB). Free memory was 77.9 MB in the beginning and 175.0 MB in the end (delta: -97.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 296.91 ms. Allocated memory is still 198.2 MB. Free memory was 175.0 MB in the beginning and 163.9 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 183.56 ms. Allocated memory is still 198.2 MB. Free memory was 163.9 MB in the beginning and 156.8 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 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...