java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-acceleration/underapprox_2-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-2989841 [2019-08-10 02:24:30,376 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-10 02:24:30,378 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-10 02:24:30,389 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-10 02:24:30,389 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-10 02:24:30,390 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-10 02:24:30,392 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-10 02:24:30,393 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-10 02:24:30,395 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-10 02:24:30,396 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-10 02:24:30,397 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-10 02:24:30,398 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-10 02:24:30,398 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-10 02:24:30,399 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-10 02:24:30,400 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-10 02:24:30,401 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-10 02:24:30,402 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-10 02:24:30,403 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-10 02:24:30,404 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-10 02:24:30,406 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-10 02:24:30,407 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-10 02:24:30,408 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-10 02:24:30,409 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-10 02:24:30,410 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-10 02:24:30,412 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-10 02:24:30,419 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-10 02:24:30,420 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-10 02:24:30,421 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-10 02:24:30,421 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 [2019-08-10 02:24:30,435 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-10 02:24:30,435 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-10 02:24:30,436 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-10 02:24:30,436 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-10 02:24:30,436 INFO L138 SettingsManager]: * Use SBE=true [2019-08-10 02:24:30,437 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-10 02:24:30,437 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-10 02:24:30,437 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-10 02:24:30,437 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-10 02:24:30,437 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-10 02:24:30,438 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-10 02:24:30,438 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-10 02:24:30,438 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-10 02:24:30,438 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-10 02:24:30,439 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-10 02:24:30,439 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-10 02:24:30,439 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-10 02:24:30,439 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-10 02:24:30,439 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-10 02:24:30,440 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-10 02:24:30,440 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-10 02:24:30,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-10 02:24:30,440 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-10 02:24:30,440 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-10 02:24:30,441 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-10 02:24:30,441 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-10 02:24:30,441 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-10 02:24:30,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-10 02:24:30,441 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-10 02:24:30,480 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-10 02:24:30,492 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-10 02:24:30,495 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-10 02:24:30,497 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-10 02:24:30,497 INFO L275 PluginConnector]: CDTParser initialized [2019-08-10 02:24:30,498 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/underapprox_2-1.c [2019-08-10 02:24:30,557 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc3d8ab2a/dcc24d5b714941eba67e6a943d905621/FLAG0c4142a6c [2019-08-10 02:24:30,942 INFO L306 CDTParser]: Found 1 translation units. [2019-08-10 02:24:30,942 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/underapprox_2-1.c [2019-08-10 02:24:30,947 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc3d8ab2a/dcc24d5b714941eba67e6a943d905621/FLAG0c4142a6c [2019-08-10 02:24:31,370 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc3d8ab2a/dcc24d5b714941eba67e6a943d905621 [2019-08-10 02:24:31,378 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-10 02:24:31,380 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-10 02:24:31,381 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-10 02:24:31,381 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-10 02:24:31,384 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-10 02:24:31,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.08 02:24:31" (1/1) ... [2019-08-10 02:24:31,389 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12ee2162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:24:31, skipping insertion in model container [2019-08-10 02:24:31,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.08 02:24:31" (1/1) ... [2019-08-10 02:24:31,396 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-10 02:24:31,413 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-10 02:24:31,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-10 02:24:31,627 INFO L188 MainTranslator]: Completed pre-run [2019-08-10 02:24:31,645 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-10 02:24:31,665 INFO L192 MainTranslator]: Completed translation [2019-08-10 02:24:31,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:24:31 WrapperNode [2019-08-10 02:24:31,666 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-10 02:24:31,667 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-10 02:24:31,667 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-10 02:24:31,667 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-10 02:24:31,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:24:31" (1/1) ... [2019-08-10 02:24:31,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:24:31" (1/1) ... [2019-08-10 02:24:31,767 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:24:31" (1/1) ... [2019-08-10 02:24:31,767 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:24:31" (1/1) ... [2019-08-10 02:24:31,771 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:24:31" (1/1) ... [2019-08-10 02:24:31,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:24:31" (1/1) ... [2019-08-10 02:24:31,776 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:24:31" (1/1) ... [2019-08-10 02:24:31,777 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-10 02:24:31,777 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-10 02:24:31,777 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-10 02:24:31,777 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-10 02:24:31,778 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:24:31" (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 [2019-08-10 02:24:31,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-10 02:24:31,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-10 02:24:31,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-08-10 02:24:31,822 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-10 02:24:31,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-10 02:24:31,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-08-10 02:24:31,823 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-10 02:24:31,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-10 02:24:31,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-10 02:24:31,968 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-10 02:24:31,968 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-10 02:24:31,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.08 02:24:31 BoogieIcfgContainer [2019-08-10 02:24:31,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-10 02:24:31,970 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-10 02:24:31,970 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-10 02:24:31,970 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-10 02:24:31,974 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.08 02:24:31" (1/1) ... [2019-08-10 02:24:32,101 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-10 02:24:32,108 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-10 02:24:32,111 INFO L168 Benchmark]: Toolchain (without parser) took 729.92 ms. Allocated memory was 136.3 MB in the beginning and 197.1 MB in the end (delta: 60.8 MB). Free memory was 83.9 MB in the beginning and 157.2 MB in the end (delta: -73.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-08-10 02:24:32,112 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 136.3 MB. Free memory was 102.5 MB in the beginning and 102.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-10 02:24:32,113 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.93 ms. Allocated memory is still 136.3 MB. Free memory was 83.7 MB in the beginning and 74.6 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-08-10 02:24:32,114 INFO L168 Benchmark]: Boogie Preprocessor took 109.96 ms. Allocated memory was 136.3 MB in the beginning and 197.1 MB in the end (delta: 60.8 MB). Free memory was 74.6 MB in the beginning and 174.9 MB in the end (delta: -100.3 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2019-08-10 02:24:32,115 INFO L168 Benchmark]: RCFGBuilder took 192.36 ms. Allocated memory is still 197.1 MB. Free memory was 174.9 MB in the beginning and 163.6 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2019-08-10 02:24:32,116 INFO L168 Benchmark]: Symbolic Interpretation took 138.43 ms. Allocated memory is still 197.1 MB. Free memory was 163.6 MB in the beginning and 157.2 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 7.1 GB. [2019-08-10 02:24:32,122 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 5]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Interpreter reached this location of interest. Location might be reachable. Predicate is 34#(and (or (= |__VERIFIER_assert_#in~cond| 0) (= |__VERIFIER_assert_#in~cond| 1)) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)). Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 136.3 MB. Free memory was 102.5 MB in the beginning and 102.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 285.93 ms. Allocated memory is still 136.3 MB. Free memory was 83.7 MB in the beginning and 74.6 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 109.96 ms. Allocated memory was 136.3 MB in the beginning and 197.1 MB in the end (delta: 60.8 MB). Free memory was 74.6 MB in the beginning and 174.9 MB in the end (delta: -100.3 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 192.36 ms. Allocated memory is still 197.1 MB. Free memory was 174.9 MB in the beginning and 163.6 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 138.43 ms. Allocated memory is still 197.1 MB. Free memory was 163.6 MB in the beginning and 157.2 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...