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 -i ../../../trunk/examples/svcomp/loops/nec20.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-06 09:05:29,644 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-06 09:05:29,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-06 09:05:29,658 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-06 09:05:29,658 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-06 09:05:29,659 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-06 09:05:29,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-06 09:05:29,662 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-06 09:05:29,664 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-06 09:05:29,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-06 09:05:29,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-06 09:05:29,667 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-06 09:05:29,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-06 09:05:29,668 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-06 09:05:29,669 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-06 09:05:29,670 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-06 09:05:29,671 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-06 09:05:29,672 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-06 09:05:29,673 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-06 09:05:29,675 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-06 09:05:29,677 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-06 09:05:29,678 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-06 09:05:29,678 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-06 09:05:29,679 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-06 09:05:29,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-06 09:05:29,681 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-06 09:05:29,682 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-06 09:05:29,682 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-06 09:05:29,683 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-06 09:05:29,684 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-06 09:05:29,684 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-06 09:05:29,685 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-06 09:05:29,685 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-06 09:05:29,686 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-06 09:05:29,687 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-06 09:05:29,687 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-06 09:05:29,688 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-06 09:05:29,689 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-06 09:05:29,689 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-06 09:05:29,690 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-06 09:05:29,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-06 09:05:29,692 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 [2019-09-06 09:05:29,706 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-06 09:05:29,707 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-06 09:05:29,708 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-06 09:05:29,708 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-06 09:05:29,708 INFO L138 SettingsManager]: * Use SBE=true [2019-09-06 09:05:29,709 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-06 09:05:29,709 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-06 09:05:29,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-06 09:05:29,709 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-06 09:05:29,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-06 09:05:29,710 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-06 09:05:29,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-06 09:05:29,710 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-06 09:05:29,710 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-06 09:05:29,710 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-06 09:05:29,710 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-06 09:05:29,711 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-06 09:05:29,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-06 09:05:29,711 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-06 09:05:29,711 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-06 09:05:29,711 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-06 09:05:29,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-06 09:05:29,712 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-06 09:05:29,712 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-06 09:05:29,712 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-06 09:05:29,712 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-06 09:05:29,713 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-06 09:05:29,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-06 09:05:29,713 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2019-09-06 09:05:29,742 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-06 09:05:29,754 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-06 09:05:29,757 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-06 09:05:29,758 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-06 09:05:29,759 INFO L275 PluginConnector]: CDTParser initialized [2019-09-06 09:05:29,759 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/nec20.c [2019-09-06 09:05:29,819 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2aa9c2834/6bd0b1c1bb3a4530a6e4c45e747a89df/FLAG0d8fdcf16 [2019-09-06 09:05:30,237 INFO L306 CDTParser]: Found 1 translation units. [2019-09-06 09:05:30,238 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/nec20.c [2019-09-06 09:05:30,244 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2aa9c2834/6bd0b1c1bb3a4530a6e4c45e747a89df/FLAG0d8fdcf16 [2019-09-06 09:05:30,635 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2aa9c2834/6bd0b1c1bb3a4530a6e4c45e747a89df [2019-09-06 09:05:30,646 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-06 09:05:30,648 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-06 09:05:30,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-06 09:05:30,649 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-06 09:05:30,653 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-06 09:05:30,654 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.09 09:05:30" (1/1) ... [2019-09-06 09:05:30,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74e22ba2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:05:30, skipping insertion in model container [2019-09-06 09:05:30,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.09 09:05:30" (1/1) ... [2019-09-06 09:05:30,664 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-06 09:05:30,685 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-06 09:05:30,897 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-06 09:05:30,901 INFO L188 MainTranslator]: Completed pre-run [2019-09-06 09:05:30,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-06 09:05:30,931 INFO L192 MainTranslator]: Completed translation [2019-09-06 09:05:30,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:05:30 WrapperNode [2019-09-06 09:05:30,932 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-06 09:05:30,932 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-06 09:05:30,933 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-06 09:05:30,933 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-06 09:05:31,033 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:05:30" (1/1) ... [2019-09-06 09:05:31,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:05:30" (1/1) ... [2019-09-06 09:05:31,038 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:05:30" (1/1) ... [2019-09-06 09:05:31,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:05:30" (1/1) ... [2019-09-06 09:05:31,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:05:30" (1/1) ... [2019-09-06 09:05:31,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:05:30" (1/1) ... [2019-09-06 09:05:31,048 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:05:30" (1/1) ... [2019-09-06 09:05:31,049 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-06 09:05:31,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-06 09:05:31,050 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-06 09:05:31,050 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-06 09:05:31,051 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:05:30" (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 [2019-09-06 09:05:31,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-06 09:05:31,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-06 09:05:31,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-06 09:05:31,102 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-06 09:05:31,102 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-06 09:05:31,102 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-06 09:05:31,102 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-06 09:05:31,102 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-06 09:05:31,103 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-06 09:05:31,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-06 09:05:31,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-06 09:05:31,334 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-06 09:05:31,335 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-06 09:05:31,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.09 09:05:31 BoogieIcfgContainer [2019-09-06 09:05:31,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-06 09:05:31,337 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-06 09:05:31,337 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-06 09:05:31,338 INFO L275 PluginConnector]: Sifa initialized [2019-09-06 09:05:31,339 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.09 09:05:31" (1/1) ... [2019-09-06 09:05:31,340 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=ReUseSupersetCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=NONE ♦ Intern Fluid=SizeLimitFluid [2019-09-06 09:05:31,366 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-06 09:05:31,366 INFO L169 IcfgInterpreter]: Building call graph [2019-09-06 09:05:31,387 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-06 09:05:31,407 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-06 09:05:31,414 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-06 09:05:31,473 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 5 for LOIs [2019-09-06 09:05:31,639 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 10 for LOIs [2019-09-06 09:05:31,645 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-06 09:05:31,645 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-06 09:05:31,647 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 28#(and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond) (<= 0 ~b~0) (<= ~b~0 0)) [2019-09-06 09:05:31,659 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-06 09:05:31,659 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-06 09:05:31,661 INFO L168 Benchmark]: Toolchain (without parser) took 1013.58 ms. Allocated memory was 141.0 MB in the beginning and 200.8 MB in the end (delta: 59.8 MB). Free memory was 88.8 MB in the beginning and 152.7 MB in the end (delta: -63.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-06 09:05:31,662 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 141.0 MB. Free memory was 107.1 MB in the beginning and 106.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-06 09:05:31,663 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.12 ms. Allocated memory is still 141.0 MB. Free memory was 88.6 MB in the beginning and 78.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-09-06 09:05:31,664 INFO L168 Benchmark]: Boogie Preprocessor took 116.97 ms. Allocated memory was 141.0 MB in the beginning and 200.8 MB in the end (delta: 59.8 MB). Free memory was 78.6 MB in the beginning and 177.8 MB in the end (delta: -99.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2019-09-06 09:05:31,665 INFO L168 Benchmark]: RCFGBuilder took 286.74 ms. Allocated memory is still 200.8 MB. Free memory was 177.8 MB in the beginning and 165.1 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. [2019-09-06 09:05:31,666 INFO L168 Benchmark]: Sifa took 322.71 ms. Allocated memory is still 200.8 MB. Free memory was 165.1 MB in the beginning and 152.7 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2019-09-06 09:05:31,670 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 141.0 MB. Free memory was 107.1 MB in the beginning and 106.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 283.12 ms. Allocated memory is still 141.0 MB. Free memory was 88.6 MB in the beginning and 78.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.97 ms. Allocated memory was 141.0 MB in the beginning and 200.8 MB in the end (delta: 59.8 MB). Free memory was 78.6 MB in the beginning and 177.8 MB in the end (delta: -99.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 286.74 ms. Allocated memory is still 200.8 MB. Free memory was 177.8 MB in the beginning and 165.1 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. * Sifa took 322.71 ms. Allocated memory is still 200.8 MB. Free memory was 165.1 MB in the beginning and 152.7 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 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]: 281, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 19, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 15, TOOLS_POST_TIME[ms]: 103, TOOLS_POST_CALL_APPLICATIONS: 3, TOOLS_POST_CALL_TIME[ms]: 36, TOOLS_POST_RETURN_APPLICATIONS: 1, TOOLS_POST_RETURN_TIME[ms]: 1, TOOLS_QUANTIFIERELIM_TIME[ms]: 128, FLUID_QUERY_TIME[ms]: 4, FLUID_QUERIES: 21, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 6, DOMAIN_JOIN_TIME[ms]: 21, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME[ms]: 5, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME[ms]: 6, DOMAIN_ISBOTTOM_APPLICATIONS: 2, DOMAIN_ISBOTTOM_TIME[ms]: 7, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 25, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 24, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 1, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 17, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 4, REGEX_TO_DAG_TIME[ms]: 2, DAG_COMPRESSION_TIME[ms]: 15, DAG_COMPRESSION_PROCESSED_NODES: 71, DAG_COMPRESSION_RETAINED_NODES: 47 - 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 28#(and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond) (<= 0 ~b~0) (<= ~b~0 0)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...