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-lit/gsv2008.c.i.p+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-a32b1f7 [2019-08-18 07:21:55,227 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-18 07:21:55,229 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-18 07:21:55,241 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-18 07:21:55,241 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-18 07:21:55,242 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-18 07:21:55,244 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-18 07:21:55,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-18 07:21:55,247 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-18 07:21:55,248 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-18 07:21:55,249 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-18 07:21:55,251 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-18 07:21:55,251 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-18 07:21:55,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-18 07:21:55,253 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-18 07:21:55,254 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-18 07:21:55,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-18 07:21:55,256 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-18 07:21:55,258 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-18 07:21:55,260 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-18 07:21:55,262 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-18 07:21:55,263 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-18 07:21:55,264 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-18 07:21:55,265 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-18 07:21:55,267 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-18 07:21:55,271 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-18 07:21:55,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-18 07:21:55,272 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-18 07:21:55,273 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-18 07:21:55,274 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-18 07:21:55,274 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-18 07:21:55,275 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-18 07:21:55,275 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-18 07:21:55,276 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-18 07:21:55,277 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-18 07:21:55,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-18 07:21:55,278 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 [2019-08-18 07:21:55,296 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-18 07:21:55,297 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-18 07:21:55,298 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-18 07:21:55,298 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-18 07:21:55,298 INFO L138 SettingsManager]: * Use SBE=true [2019-08-18 07:21:55,299 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-18 07:21:55,299 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-18 07:21:55,300 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-18 07:21:55,300 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-18 07:21:55,300 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-18 07:21:55,301 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-18 07:21:55,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-18 07:21:55,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-18 07:21:55,302 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-18 07:21:55,303 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-18 07:21:55,303 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-18 07:21:55,303 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-18 07:21:55,303 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-18 07:21:55,304 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-18 07:21:55,304 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-18 07:21:55,304 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-18 07:21:55,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-18 07:21:55,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-18 07:21:55,305 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-18 07:21:55,305 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-18 07:21:55,306 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-18 07:21:55,306 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-18 07:21:55,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-18 07:21:55,306 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-18 07:21:55,342 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-18 07:21:55,353 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-18 07:21:55,357 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-18 07:21:55,358 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-18 07:21:55,359 INFO L275 PluginConnector]: CDTParser initialized [2019-08-18 07:21:55,360 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2019-08-18 07:21:55,422 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a77fb044/0a93d3bab17c4535b646b5759a5f8255/FLAGca4051bde [2019-08-18 07:21:55,936 INFO L306 CDTParser]: Found 1 translation units. [2019-08-18 07:21:55,938 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2019-08-18 07:21:55,944 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a77fb044/0a93d3bab17c4535b646b5759a5f8255/FLAGca4051bde [2019-08-18 07:21:56,389 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a77fb044/0a93d3bab17c4535b646b5759a5f8255 [2019-08-18 07:21:56,398 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-18 07:21:56,400 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-18 07:21:56,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-18 07:21:56,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-18 07:21:56,405 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-18 07:21:56,406 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 07:21:56" (1/1) ... [2019-08-18 07:21:56,409 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71593f7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:21:56, skipping insertion in model container [2019-08-18 07:21:56,409 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 07:21:56" (1/1) ... [2019-08-18 07:21:56,418 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-18 07:21:56,437 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-18 07:21:56,596 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-18 07:21:56,600 INFO L188 MainTranslator]: Completed pre-run [2019-08-18 07:21:56,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-18 07:21:56,629 INFO L192 MainTranslator]: Completed translation [2019-08-18 07:21:56,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:21:56 WrapperNode [2019-08-18 07:21:56,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-18 07:21:56,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-18 07:21:56,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-18 07:21:56,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-18 07:21:56,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:21:56" (1/1) ... [2019-08-18 07:21:56,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:21:56" (1/1) ... [2019-08-18 07:21:56,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:21:56" (1/1) ... [2019-08-18 07:21:56,739 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:21:56" (1/1) ... [2019-08-18 07:21:56,748 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:21:56" (1/1) ... [2019-08-18 07:21:56,750 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:21:56" (1/1) ... [2019-08-18 07:21:56,751 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:21:56" (1/1) ... [2019-08-18 07:21:56,752 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-18 07:21:56,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-18 07:21:56,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-18 07:21:56,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-18 07:21:56,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:21:56" (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 [2019-08-18 07:21:56,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-18 07:21:56,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-18 07:21:56,812 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-18 07:21:56,813 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-18 07:21:56,813 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-08-18 07:21:56,813 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-08-18 07:21:56,813 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-08-18 07:21:56,813 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-18 07:21:56,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-18 07:21:56,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-18 07:21:56,991 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-18 07:21:56,991 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-18 07:21:56,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 07:21:56 BoogieIcfgContainer [2019-08-18 07:21:56,993 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-18 07:21:56,994 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-18 07:21:56,994 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-18 07:21:57,001 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-18 07:21:57,003 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 07:21:56" (1/1) ... [2019-08-18 07:21:57,016 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-18 07:21:57,019 INFO L155 IcfgInterpreter]: Building call graph [2019-08-18 07:21:57,025 INFO L160 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-18 07:21:57,037 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-18 07:21:57,039 INFO L185 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 [2019-08-18 07:21:57,150 INFO L185 IcfgInterpreter]: Interpreting procedure main with input of size 8 [2019-08-18 07:21:57,219 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-18 07:21:57,219 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-18 07:21:57,223 INFO L179 IcfgInterpreter]: Location mainErr0ASSERT_VIOLATIONERROR_FUNCTION has predicate 32#(and (= main_~__tmp_1~0 (ite (< 0 main_~main__y~0) 1 0)) (= main_~__VERIFIER_assert__cond~0 0) (= main_~__tmp_1~0 main_~__VERIFIER_assert__cond~0) (not (< main_~main__x~0 0))) [2019-08-18 07:21:57,233 INFO L92 terpretationObserver]: ✘ Some locations of interest might be reachable, see reported results. [2019-08-18 07:21:57,233 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-18 07:21:57,236 INFO L168 Benchmark]: Toolchain (without parser) took 835.39 ms. Allocated memory was 139.5 MB in the beginning and 200.3 MB in the end (delta: 60.8 MB). Free memory was 88.2 MB in the beginning and 159.9 MB in the end (delta: -71.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-08-18 07:21:57,238 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 107.3 MB in the beginning and 107.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-18 07:21:57,239 INFO L168 Benchmark]: CACSL2BoogieTranslator took 229.26 ms. Allocated memory is still 139.5 MB. Free memory was 88.0 MB in the beginning and 78.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-08-18 07:21:57,240 INFO L168 Benchmark]: Boogie Preprocessor took 122.26 ms. Allocated memory was 139.5 MB in the beginning and 200.3 MB in the end (delta: 60.8 MB). Free memory was 78.7 MB in the beginning and 177.9 MB in the end (delta: -99.3 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2019-08-18 07:21:57,241 INFO L168 Benchmark]: RCFGBuilder took 240.47 ms. Allocated memory is still 200.3 MB. Free memory was 177.9 MB in the beginning and 167.0 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2019-08-18 07:21:57,242 INFO L168 Benchmark]: Symbolic Interpretation took 239.83 ms. Allocated memory is still 200.3 MB. Free memory was 167.0 MB in the beginning and 159.9 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 7.1 GB. [2019-08-18 07:21:57,246 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 43]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Over-approximation of reachable states at this location is 32#(and (= main_~__tmp_1~0 (ite (< 0 main_~main__y~0) 1 0)) (= main_~__VERIFIER_assert__cond~0 0) (= main_~__tmp_1~0 main_~__VERIFIER_assert__cond~0) (not (< main_~main__x~0 0))). Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 107.3 MB in the beginning and 107.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 229.26 ms. Allocated memory is still 139.5 MB. Free memory was 88.0 MB in the beginning and 78.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.26 ms. Allocated memory was 139.5 MB in the beginning and 200.3 MB in the end (delta: 60.8 MB). Free memory was 78.7 MB in the beginning and 177.9 MB in the end (delta: -99.3 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 240.47 ms. Allocated memory is still 200.3 MB. Free memory was 177.9 MB in the beginning and 167.0 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 239.83 ms. Allocated memory is still 200.3 MB. Free memory was 167.0 MB in the beginning and 159.9 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...