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-new/gauss_sum.i.p+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-2989841 [2019-08-10 02:26:24,261 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-10 02:26:24,264 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-10 02:26:24,276 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-10 02:26:24,277 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-10 02:26:24,278 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-10 02:26:24,279 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-10 02:26:24,281 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-10 02:26:24,283 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-10 02:26:24,284 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-10 02:26:24,285 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-10 02:26:24,286 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-10 02:26:24,286 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-10 02:26:24,287 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-10 02:26:24,288 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-10 02:26:24,289 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-10 02:26:24,290 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-10 02:26:24,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-10 02:26:24,293 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-10 02:26:24,295 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-10 02:26:24,297 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-10 02:26:24,298 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-10 02:26:24,303 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-10 02:26:24,304 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-10 02:26:24,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-10 02:26:24,314 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-10 02:26:24,315 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-10 02:26:24,316 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-10 02:26:24,317 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-10 02:26:24,318 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-10 02:26:24,318 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-10 02:26:24,322 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-10 02:26:24,322 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-10 02:26:24,322 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-10 02:26:24,324 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-10 02:26:24,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-10 02:26:24,327 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 02:26:24,357 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-10 02:26:24,357 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-10 02:26:24,360 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-10 02:26:24,360 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-10 02:26:24,360 INFO L138 SettingsManager]: * Use SBE=true [2019-08-10 02:26:24,361 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-10 02:26:24,361 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-10 02:26:24,361 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-10 02:26:24,361 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-10 02:26:24,361 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-10 02:26:24,362 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-10 02:26:24,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-10 02:26:24,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-10 02:26:24,364 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-10 02:26:24,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-10 02:26:24,364 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-10 02:26:24,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-10 02:26:24,364 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-10 02:26:24,365 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-10 02:26:24,365 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-10 02:26:24,365 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-10 02:26:24,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-10 02:26:24,366 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-10 02:26:24,366 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-10 02:26:24,366 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-10 02:26:24,367 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-10 02:26:24,367 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-10 02:26:24,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-10 02:26:24,367 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-10 02:26:24,423 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-10 02:26:24,445 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-10 02:26:24,449 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-10 02:26:24,450 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-10 02:26:24,451 INFO L275 PluginConnector]: CDTParser initialized [2019-08-10 02:26:24,452 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/gauss_sum.i.p+lhb-reducer.c [2019-08-10 02:26:24,529 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96c141591/872e201cfc0a4958ab30d5d4745d6a83/FLAG88e031ea4 [2019-08-10 02:26:24,995 INFO L306 CDTParser]: Found 1 translation units. [2019-08-10 02:26:24,996 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/gauss_sum.i.p+lhb-reducer.c [2019-08-10 02:26:25,003 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96c141591/872e201cfc0a4958ab30d5d4745d6a83/FLAG88e031ea4 [2019-08-10 02:26:25,341 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96c141591/872e201cfc0a4958ab30d5d4745d6a83 [2019-08-10 02:26:25,351 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-10 02:26:25,353 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-10 02:26:25,354 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-10 02:26:25,354 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-10 02:26:25,358 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-10 02:26:25,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.08 02:26:25" (1/1) ... [2019-08-10 02:26:25,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35bcec1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:26:25, skipping insertion in model container [2019-08-10 02:26:25,362 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.08 02:26:25" (1/1) ... [2019-08-10 02:26:25,368 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-10 02:26:25,386 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-10 02:26:25,553 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-10 02:26:25,559 INFO L188 MainTranslator]: Completed pre-run [2019-08-10 02:26:25,582 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-10 02:26:25,595 INFO L192 MainTranslator]: Completed translation [2019-08-10 02:26:25,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:26:25 WrapperNode [2019-08-10 02:26:25,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-10 02:26:25,597 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-10 02:26:25,597 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-10 02:26:25,597 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-10 02:26:25,607 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:26:25" (1/1) ... [2019-08-10 02:26:25,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:26:25" (1/1) ... [2019-08-10 02:26:25,612 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:26:25" (1/1) ... [2019-08-10 02:26:25,612 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:26:25" (1/1) ... [2019-08-10 02:26:25,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:26:25" (1/1) ... [2019-08-10 02:26:25,704 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:26:25" (1/1) ... [2019-08-10 02:26:25,705 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:26:25" (1/1) ... [2019-08-10 02:26:25,707 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-10 02:26:25,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-10 02:26:25,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-10 02:26:25,708 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-10 02:26:25,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.08 02:26:25" (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 02:26:25,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-10 02:26:25,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-10 02:26:25,766 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-10 02:26:25,766 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-10 02:26:25,766 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-08-10 02:26:25,767 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-08-10 02:26:25,767 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-08-10 02:26:25,767 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-10 02:26:25,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-10 02:26:25,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-10 02:26:25,957 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-10 02:26:25,957 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-10 02:26:25,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.08 02:26:25 BoogieIcfgContainer [2019-08-10 02:26:25,959 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-10 02:26:25,959 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-10 02:26:25,960 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-10 02:26:25,960 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-10 02:26:25,961 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.08 02:26:25" (1/1) ... [2019-08-10 02:26:26,162 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-10 02:26:26,171 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-10 02:26:26,174 INFO L168 Benchmark]: Toolchain (without parser) took 819.89 ms. Allocated memory was 132.1 MB in the beginning and 199.8 MB in the end (delta: 67.6 MB). Free memory was 88.0 MB in the beginning and 156.5 MB in the end (delta: -68.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-08-10 02:26:26,175 INFO L168 Benchmark]: CDTParser took 0.55 ms. Allocated memory is still 132.1 MB. Free memory was 106.2 MB in the beginning and 106.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-10 02:26:26,176 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.14 ms. Allocated memory is still 132.1 MB. Free memory was 87.8 MB in the beginning and 78.0 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-08-10 02:26:26,177 INFO L168 Benchmark]: Boogie Preprocessor took 110.49 ms. Allocated memory was 132.1 MB in the beginning and 199.8 MB in the end (delta: 67.6 MB). Free memory was 78.0 MB in the beginning and 176.8 MB in the end (delta: -98.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. [2019-08-10 02:26:26,178 INFO L168 Benchmark]: RCFGBuilder took 251.56 ms. Allocated memory is still 199.8 MB. Free memory was 176.8 MB in the beginning and 163.7 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2019-08-10 02:26:26,179 INFO L168 Benchmark]: Symbolic Interpretation took 211.69 ms. Allocated memory is still 199.8 MB. Free memory was 163.7 MB in the beginning and 156.5 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 7.1 GB. [2019-08-10 02:26:26,184 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 64]: 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 37#(and (not (<= main_~main__i~0 main_~main__n~0)) (= main_~__tmp_1~0 (ite (= (* main_~main__n~0 (+ main_~main__n~0 1)) (* 2 main_~main__sum~0)) 1 0)) (= main_~__VERIFIER_assert__cond~0 0) (= main_~__tmp_1~0 main_~__VERIFIER_assert__cond~0)). Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55 ms. Allocated memory is still 132.1 MB. Free memory was 106.2 MB in the beginning and 106.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 242.14 ms. Allocated memory is still 132.1 MB. Free memory was 87.8 MB in the beginning and 78.0 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 110.49 ms. Allocated memory was 132.1 MB in the beginning and 199.8 MB in the end (delta: 67.6 MB). Free memory was 78.0 MB in the beginning and 176.8 MB in the end (delta: -98.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 251.56 ms. Allocated memory is still 199.8 MB. Free memory was 176.8 MB in the beginning and 163.7 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 211.69 ms. Allocated memory is still 199.8 MB. Free memory was 163.7 MB in the beginning and 156.5 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...