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/nested_1-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c6af20d [2019-09-03 21:26:04,935 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-03 21:26:04,938 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-03 21:26:04,960 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-03 21:26:04,960 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-03 21:26:04,964 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-03 21:26:04,968 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-03 21:26:04,979 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-03 21:26:04,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-03 21:26:04,987 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-03 21:26:04,988 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-03 21:26:04,989 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-03 21:26:04,989 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-03 21:26:04,991 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-03 21:26:04,994 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-03 21:26:04,995 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-03 21:26:04,996 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-03 21:26:04,996 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-03 21:26:05,000 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-03 21:26:05,002 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-03 21:26:05,005 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-03 21:26:05,007 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-03 21:26:05,008 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-03 21:26:05,010 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-03 21:26:05,012 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-03 21:26:05,018 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-03 21:26:05,020 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-03 21:26:05,021 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-03 21:26:05,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-03 21:26:05,026 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-03 21:26:05,026 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-03 21:26:05,027 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-03 21:26:05,027 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-03 21:26:05,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-03 21:26:05,029 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-03 21:26:05,030 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-03 21:26:05,031 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 21:26:05,055 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-03 21:26:05,056 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-03 21:26:05,057 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-03 21:26:05,057 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-03 21:26:05,058 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-03 21:26:05,058 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-03 21:26:05,058 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-03 21:26:05,058 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-03 21:26:05,059 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-03 21:26:05,059 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-03 21:26:05,061 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-03 21:26:05,061 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-03 21:26:05,061 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-03 21:26:05,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-03 21:26:05,062 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-03 21:26:05,062 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-03 21:26:05,063 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-03 21:26:05,063 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-03 21:26:05,063 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-03 21:26:05,063 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-03 21:26:05,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-03 21:26:05,064 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-03 21:26:05,064 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-03 21:26:05,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-03 21:26:05,064 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-03 21:26:05,064 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-03 21:26:05,065 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-03 21:26:05,065 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-03 21:26:05,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-03 21:26:05,065 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-03 21:26:05,120 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-03 21:26:05,137 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-03 21:26:05,141 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-03 21:26:05,143 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-03 21:26:05,143 INFO L275 PluginConnector]: CDTParser initialized [2019-09-03 21:26:05,144 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/nested_1-1.c [2019-09-03 21:26:05,211 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed2fa0049/55ad6a97f7454429a4f51b102e26e399/FLAG8f8671b0a [2019-09-03 21:26:05,658 INFO L306 CDTParser]: Found 1 translation units. [2019-09-03 21:26:05,658 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/nested_1-1.c [2019-09-03 21:26:05,665 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed2fa0049/55ad6a97f7454429a4f51b102e26e399/FLAG8f8671b0a [2019-09-03 21:26:06,073 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed2fa0049/55ad6a97f7454429a4f51b102e26e399 [2019-09-03 21:26:06,083 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-03 21:26:06,084 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-03 21:26:06,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-03 21:26:06,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-03 21:26:06,089 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-03 21:26:06,090 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 09:26:06" (1/1) ... [2019-09-03 21:26:06,093 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61fa5d6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:06, skipping insertion in model container [2019-09-03 21:26:06,093 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 09:26:06" (1/1) ... [2019-09-03 21:26:06,101 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-03 21:26:06,116 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-03 21:26:06,301 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 21:26:06,304 INFO L188 MainTranslator]: Completed pre-run [2019-09-03 21:26:06,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 21:26:06,333 INFO L192 MainTranslator]: Completed translation [2019-09-03 21:26:06,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:06 WrapperNode [2019-09-03 21:26:06,334 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-03 21:26:06,335 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-03 21:26:06,335 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-03 21:26:06,335 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-03 21:26:06,435 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:06" (1/1) ... [2019-09-03 21:26:06,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:06" (1/1) ... [2019-09-03 21:26:06,440 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:06" (1/1) ... [2019-09-03 21:26:06,440 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:06" (1/1) ... [2019-09-03 21:26:06,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:06" (1/1) ... [2019-09-03 21:26:06,450 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:06" (1/1) ... [2019-09-03 21:26:06,451 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:06" (1/1) ... [2019-09-03 21:26:06,454 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-03 21:26:06,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-03 21:26:06,455 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-03 21:26:06,455 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-03 21:26:06,456 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:26:06" (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 21:26:06,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-03 21:26:06,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-03 21:26:06,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-03 21:26:06,520 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-03 21:26:06,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-03 21:26:06,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-03 21:26:06,520 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-03 21:26:06,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-03 21:26:06,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-03 21:26:06,686 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-03 21:26:06,687 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-09-03 21:26:06,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 09:26:06 BoogieIcfgContainer [2019-09-03 21:26:06,688 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-03 21:26:06,689 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-03 21:26:06,689 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-03 21:26:06,689 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-03 21:26:06,690 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 09:26:06" (1/1) ... [2019-09-03 21:26:06,741 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-03 21:26:06,857 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-03 21:26:08,574 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-03 21:26:08,595 INFO L272 AbstractInterpreter]: Visited 23 different actions 188 times. Merged at 7 different actions 60 times. Widened at 3 different actions 16 times. Performed 322 root evaluator evaluations with a maximum evaluation depth of 12. Performed 322 inverse root evaluator evaluations with a maximum inverse evaluation depth of 12. Found 23 fixpoints after 4 different actions. Largest state had 5 variables. [2019-09-03 21:26:08,596 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-03 21:26:08,601 INFO L168 Benchmark]: Toolchain (without parser) took 2513.30 ms. Allocated memory was 133.2 MB in the beginning and 320.3 MB in the end (delta: 187.2 MB). Free memory was 89.2 MB in the beginning and 291.5 MB in the end (delta: -202.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-03 21:26:08,602 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 133.2 MB. Free memory was 107.5 MB in the beginning and 107.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-03 21:26:08,603 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.28 ms. Allocated memory is still 133.2 MB. Free memory was 89.0 MB in the beginning and 80.0 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:08,606 INFO L168 Benchmark]: Boogie Preprocessor took 119.93 ms. Allocated memory was 133.2 MB in the beginning and 199.2 MB in the end (delta: 66.1 MB). Free memory was 80.0 MB in the beginning and 175.7 MB in the end (delta: -95.7 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:08,608 INFO L168 Benchmark]: RCFGBuilder took 233.24 ms. Allocated memory is still 199.2 MB. Free memory was 175.7 MB in the beginning and 164.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2019-09-03 21:26:08,609 INFO L168 Benchmark]: Abstract Interpretation took 1907.13 ms. Allocated memory was 199.2 MB in the beginning and 320.3 MB in the end (delta: 121.1 MB). Free memory was 164.2 MB in the beginning and 291.5 MB in the end (delta: -127.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-03 21:26:08,619 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 133.2 MB. Free memory was 107.5 MB in the beginning and 107.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 249.28 ms. Allocated memory is still 133.2 MB. Free memory was 89.0 MB in the beginning and 80.0 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.93 ms. Allocated memory was 133.2 MB in the beginning and 199.2 MB in the end (delta: 66.1 MB). Free memory was 80.0 MB in the beginning and 175.7 MB in the end (delta: -95.7 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 233.24 ms. Allocated memory is still 199.2 MB. Free memory was 175.7 MB in the beginning and 164.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 1907.13 ms. Allocated memory was 199.2 MB in the beginning and 320.3 MB in the end (delta: 121.1 MB). Free memory was 164.2 MB in the beginning and 291.5 MB in the end (delta: -127.3 MB). There was no memory consumed. 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] unsigned int x = 0; [L12] unsigned int y = 0; [L14] COND FALSE !(x < 0x0fffffff) [L24] CALL __VERIFIER_assert(x % 2) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...