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 --sifa.abstract.domain IntervalDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.intern.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/loops/string-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-21 09:09:09,143 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-21 09:09:09,145 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-21 09:09:09,166 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-21 09:09:09,166 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-21 09:09:09,168 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-21 09:09:09,170 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-21 09:09:09,184 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-21 09:09:09,186 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-21 09:09:09,188 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-21 09:09:09,190 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-21 09:09:09,193 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-21 09:09:09,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-21 09:09:09,196 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-21 09:09:09,199 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-21 09:09:09,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-21 09:09:09,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-21 09:09:09,206 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-21 09:09:09,208 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-21 09:09:09,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-21 09:09:09,218 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-21 09:09:09,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-21 09:09:09,224 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-21 09:09:09,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-21 09:09:09,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-21 09:09:09,228 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-21 09:09:09,228 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-21 09:09:09,230 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-21 09:09:09,231 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-21 09:09:09,233 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-21 09:09:09,233 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-21 09:09:09,235 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-21 09:09:09,236 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-21 09:09:09,236 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-21 09:09:09,239 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-21 09:09:09,239 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-21 09:09:09,240 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-21 09:09:09,240 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-21 09:09:09,240 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-21 09:09:09,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-21 09:09:09,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-21 09:09:09,243 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 [2019-09-21 09:09:09,266 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-21 09:09:09,266 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-21 09:09:09,268 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-21 09:09:09,269 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-21 09:09:09,269 INFO L138 SettingsManager]: * Use SBE=true [2019-09-21 09:09:09,269 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-21 09:09:09,269 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-21 09:09:09,270 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-21 09:09:09,270 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-21 09:09:09,270 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-21 09:09:09,271 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-21 09:09:09,271 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-21 09:09:09,272 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-21 09:09:09,272 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-21 09:09:09,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-21 09:09:09,272 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-21 09:09:09,273 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-21 09:09:09,273 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-21 09:09:09,273 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-21 09:09:09,273 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-21 09:09:09,273 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-21 09:09:09,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-21 09:09:09,274 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-21 09:09:09,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-21 09:09:09,274 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-21 09:09:09,275 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-21 09:09:09,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-21 09:09:09,275 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-21 09:09:09,275 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Intern Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-09-21 09:09:09,332 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-21 09:09:09,349 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-21 09:09:09,354 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-21 09:09:09,356 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-21 09:09:09,356 INFO L275 PluginConnector]: CDTParser initialized [2019-09-21 09:09:09,357 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/string-2.i [2019-09-21 09:09:09,432 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbffe6cde/fd619b26b98f4080a506a2d49ef22755/FLAG2e24c783c [2019-09-21 09:09:09,892 INFO L306 CDTParser]: Found 1 translation units. [2019-09-21 09:09:09,893 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/string-2.i [2019-09-21 09:09:09,901 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbffe6cde/fd619b26b98f4080a506a2d49ef22755/FLAG2e24c783c [2019-09-21 09:09:09,930 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbffe6cde/fd619b26b98f4080a506a2d49ef22755 [2019-09-21 09:09:09,944 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-21 09:09:09,946 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-21 09:09:09,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-21 09:09:09,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-21 09:09:09,956 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-21 09:09:09,957 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 09:09:09" (1/1) ... [2019-09-21 09:09:09,961 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f55d4e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:09:09, skipping insertion in model container [2019-09-21 09:09:09,961 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 09:09:09" (1/1) ... [2019-09-21 09:09:09,970 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-21 09:09:09,997 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-21 09:09:10,230 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-21 09:09:10,233 INFO L188 MainTranslator]: Completed pre-run [2019-09-21 09:09:10,344 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-21 09:09:10,364 INFO L192 MainTranslator]: Completed translation [2019-09-21 09:09:10,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:09:10 WrapperNode [2019-09-21 09:09:10,365 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-21 09:09:10,366 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-21 09:09:10,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-21 09:09:10,366 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-21 09:09:10,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:09:10" (1/1) ... [2019-09-21 09:09:10,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:09:10" (1/1) ... [2019-09-21 09:09:10,386 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:09:10" (1/1) ... [2019-09-21 09:09:10,387 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:09:10" (1/1) ... [2019-09-21 09:09:10,397 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:09:10" (1/1) ... [2019-09-21 09:09:10,404 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:09:10" (1/1) ... [2019-09-21 09:09:10,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:09:10" (1/1) ... [2019-09-21 09:09:10,409 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-21 09:09:10,409 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-21 09:09:10,410 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-21 09:09:10,410 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-21 09:09:10,411 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:09:10" (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 [2019-09-21 09:09:10,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-21 09:09:10,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-21 09:09:10,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-21 09:09:10,479 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-21 09:09:10,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-21 09:09:10,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-21 09:09:10,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-21 09:09:10,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-21 09:09:10,480 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-21 09:09:10,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-21 09:09:10,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-21 09:09:10,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-21 09:09:10,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-21 09:09:10,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-21 09:09:10,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-21 09:09:10,966 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-21 09:09:10,968 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-21 09:09:10,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 09:09:10 BoogieIcfgContainer [2019-09-21 09:09:10,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-21 09:09:10,970 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-21 09:09:10,970 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-21 09:09:10,970 INFO L275 PluginConnector]: Sifa initialized [2019-09-21 09:09:10,971 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 09:09:10" (1/1) ... [2019-09-21 09:09:10,972 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=IntervalDomain ♦ Abstract when formula's dag size exceeds (negative numbers disable this limit)=-1 ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ Abstract when formula has more disjuncts than (negative numbers disable this limit)=8 ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=SIMPLIFY_QUICK ♦ Intern Fluid=SizeLimitFluid [2019-09-21 09:09:10,997 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-21 09:09:10,997 INFO L169 IcfgInterpreter]: Building call graph [2019-09-21 09:09:11,004 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-21 09:09:11,012 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-21 09:09:11,014 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-21 09:09:11,152 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 17 for LOIs [2019-09-21 09:09:11,488 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2019-09-21 09:09:11,493 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-21 09:09:11,494 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-21 09:09:11,497 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 65#(and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond)) [2019-09-21 09:09:11,512 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-21 09:09:11,513 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-21 09:09:11,514 INFO L168 Benchmark]: Toolchain (without parser) took 1568.97 ms. Allocated memory was 131.6 MB in the beginning and 199.8 MB in the end (delta: 68.2 MB). Free memory was 87.1 MB in the beginning and 124.7 MB in the end (delta: -37.6 MB). Peak memory consumption was 30.5 MB. Max. memory is 7.1 GB. [2019-09-21 09:09:11,515 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 131.6 MB. Free memory was 105.8 MB in the beginning and 105.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-21 09:09:11,516 INFO L168 Benchmark]: CACSL2BoogieTranslator took 414.14 ms. Allocated memory was 131.6 MB in the beginning and 199.8 MB in the end (delta: 68.2 MB). Free memory was 86.9 MB in the beginning and 175.6 MB in the end (delta: -88.7 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2019-09-21 09:09:11,517 INFO L168 Benchmark]: Boogie Preprocessor took 43.34 ms. Allocated memory is still 199.8 MB. Free memory was 175.6 MB in the beginning and 173.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-09-21 09:09:11,518 INFO L168 Benchmark]: RCFGBuilder took 560.03 ms. Allocated memory is still 199.8 MB. Free memory was 173.7 MB in the beginning and 149.6 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2019-09-21 09:09:11,519 INFO L168 Benchmark]: Sifa took 542.90 ms. Allocated memory is still 199.8 MB. Free memory was 149.6 MB in the beginning and 124.7 MB in the end (delta: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. [2019-09-21 09:09:11,523 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 131.6 MB. Free memory was 105.8 MB in the beginning and 105.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 414.14 ms. Allocated memory was 131.6 MB in the beginning and 199.8 MB in the end (delta: 68.2 MB). Free memory was 86.9 MB in the beginning and 175.6 MB in the end (delta: -88.7 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 43.34 ms. Allocated memory is still 199.8 MB. Free memory was 175.6 MB in the beginning and 173.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 560.03 ms. Allocated memory is still 199.8 MB. Free memory was 173.7 MB in the beginning and 149.6 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Sifa took 542.90 ms. Allocated memory is still 199.8 MB. Free memory was 149.6 MB in the beginning and 124.7 MB in the end (delta: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME[ms]: 501, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 45, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 37, TOOLS_POST_TIME[ms]: 257, TOOLS_POST_CALL_APPLICATIONS: 3, TOOLS_POST_CALL_TIME[ms]: 18, TOOLS_POST_RETURN_APPLICATIONS: 1, TOOLS_POST_RETURN_TIME[ms]: 1, TOOLS_QUANTIFIERELIM_APPLICATIONS: 39, TOOLS_QUANTIFIERELIM_TIME[ms]: 249, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 75, FLUID_QUERY_TIME[ms]: 5, FLUID_QUERIES: 56, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 16, DOMAIN_JOIN_TIME[ms]: 82, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 6, DOMAIN_WIDEN_TIME[ms]: 17, DOMAIN_ISSUBSETEQ_APPLICATIONS: 11, DOMAIN_ISSUBSETEQ_TIME[ms]: 39, DOMAIN_ISBOTTOM_APPLICATIONS: 3, DOMAIN_ISBOTTOM_TIME[ms]: 4, LOOP_SUMMARIZER_APPLICATIONS: 5, LOOP_SUMMARIZER_CACHE_MISSES: 5, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 279, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 278, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 11, CALL_SUMMARIZER_APPLICATIONS: 1, CALL_SUMMARIZER_CACHE_MISSES: 1, CALL_SUMMARIZER_OVERALL_TIME[ms]: 94, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 93, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 4, PATH_EXPR_TIME[ms]: 4, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 20, DAG_COMPRESSION_PROCESSED_NODES: 162, DAG_COMPRESSION_RETAINED_NODES: 69 - UnprovableResult [Line: 6]: 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 65#(and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...