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 ExplicitValueDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer ReUseSupersetCallSummarizer --sifa.fluid SizeLimitFluid --sifa.intern.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_DDA -i ../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_1b.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 20:21:13,548 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 20:21:13,552 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 20:21:13,572 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 20:21:13,572 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 20:21:13,573 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 20:21:13,576 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 20:21:13,586 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 20:21:13,591 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 20:21:13,594 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 20:21:13,596 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 20:21:13,597 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 20:21:13,598 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 20:21:13,599 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 20:21:13,601 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 20:21:13,603 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 20:21:13,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 20:21:13,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 20:21:13,608 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 20:21:13,613 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 20:21:13,614 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 20:21:13,615 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 20:21:13,616 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 20:21:13,617 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 20:21:13,619 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-20 20:21:13,625 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 20:21:13,627 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 20:21:13,628 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 20:21:13,630 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 [2019-09-20 20:21:13,661 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 20:21:13,662 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 20:21:13,663 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 20:21:13,663 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 20:21:13,663 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 20:21:13,664 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 20:21:13,664 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 20:21:13,664 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 20:21:13,665 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 20:21:13,665 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 20:21:13,665 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 20:21:13,665 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 20:21:13,665 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 20:21:13,666 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 20:21:13,666 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 20:21:13,666 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 20:21:13,666 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 20:21:13,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 20:21:13,667 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 20:21:13,667 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 20:21:13,667 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 20:21:13,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 20:21:13,669 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 20:21:13,669 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 20:21:13,669 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 20:21:13,669 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 20:21:13,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 20:21:13,670 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 20:21:13,670 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> ExplicitValueDomain 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 -> ReUseSupersetCallSummarizer 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_DDA [2019-09-20 20:21:13,718 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 20:21:13,732 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 20:21:13,736 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 20:21:13,737 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 20:21:13,738 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 20:21:13,739 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_1b.cil.c [2019-09-20 20:21:13,811 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b31c4eeb5/9bede1b7c852458f936cd33201bfb8b7/FLAGf587799c1 [2019-09-20 20:21:14,218 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 20:21:14,219 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ssh-simplified/s3_srvr_1b.cil.c [2019-09-20 20:21:14,226 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b31c4eeb5/9bede1b7c852458f936cd33201bfb8b7/FLAGf587799c1 [2019-09-20 20:21:14,642 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b31c4eeb5/9bede1b7c852458f936cd33201bfb8b7 [2019-09-20 20:21:14,652 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 20:21:14,654 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 20:21:14,655 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 20:21:14,655 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 20:21:14,658 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 20:21:14,659 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:21:14" (1/1) ... [2019-09-20 20:21:14,662 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58b02fb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:21:14, skipping insertion in model container [2019-09-20 20:21:14,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:21:14" (1/1) ... [2019-09-20 20:21:14,669 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 20:21:14,691 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 20:21:14,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 20:21:14,913 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 20:21:14,932 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 20:21:15,032 INFO L192 MainTranslator]: Completed translation [2019-09-20 20:21:15,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:21:15 WrapperNode [2019-09-20 20:21:15,033 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 20:21:15,034 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 20:21:15,034 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 20:21:15,034 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 20:21:15,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:21:15" (1/1) ... [2019-09-20 20:21:15,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:21:15" (1/1) ... [2019-09-20 20:21:15,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:21:15" (1/1) ... [2019-09-20 20:21:15,050 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:21:15" (1/1) ... [2019-09-20 20:21:15,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:21:15" (1/1) ... [2019-09-20 20:21:15,058 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:21:15" (1/1) ... [2019-09-20 20:21:15,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:21:15" (1/1) ... [2019-09-20 20:21:15,065 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 20:21:15,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 20:21:15,066 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 20:21:15,066 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 20:21:15,067 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:21:15" (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 [2019-09-20 20:21:15,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 20:21:15,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 20:21:15,126 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 20:21:15,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 20:21:15,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-20 20:21:15,127 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 20:21:15,127 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-09-20 20:21:15,127 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-20 20:21:15,127 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 20:21:15,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 20:21:15,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 20:21:15,449 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 20:21:15,449 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-20 20:21:15,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:21:15 BoogieIcfgContainer [2019-09-20 20:21:15,451 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 20:21:15,453 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-20 20:21:15,453 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-20 20:21:15,454 INFO L275 PluginConnector]: Sifa initialized [2019-09-20 20:21:15,455 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:21:15" (1/1) ... [2019-09-20 20:21:15,455 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=ExplicitValueDomain ♦ 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=SIMPLIFY_DDA ♦ Intern Fluid=SizeLimitFluid [2019-09-20 20:21:15,478 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-20 20:21:15,479 INFO L169 IcfgInterpreter]: Building call graph [2019-09-20 20:21:15,486 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-20 20:21:15,494 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-20 20:21:15,496 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-20 20:21:15,547 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-09-20 20:21:16,319 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 23 [2019-09-20 20:21:16,466 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 28 [2019-09-20 20:21:17,558 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-20 20:21:17,559 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-20 20:21:17,561 INFO L193 IcfgInterpreter]: Reachable states at location mainErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 235#(and (< 2 main_~blastFlag~0) (<= main_~s__state~0 8512)) [2019-09-20 20:21:17,574 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-20 20:21:17,574 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-20 20:21:17,576 INFO L168 Benchmark]: Toolchain (without parser) took 2922.11 ms. Allocated memory was 136.3 MB in the beginning and 253.8 MB in the end (delta: 117.4 MB). Free memory was 92.2 MB in the beginning and 182.9 MB in the end (delta: -90.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2019-09-20 20:21:17,577 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 136.3 MB. Free memory was 110.7 MB in the beginning and 110.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-09-20 20:21:17,578 INFO L168 Benchmark]: CACSL2BoogieTranslator took 378.92 ms. Allocated memory was 136.3 MB in the beginning and 201.3 MB in the end (delta: 65.0 MB). Free memory was 92.0 MB in the beginning and 178.9 MB in the end (delta: -86.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2019-09-20 20:21:17,579 INFO L168 Benchmark]: Boogie Preprocessor took 31.07 ms. Allocated memory is still 201.3 MB. Free memory was 178.9 MB in the beginning and 176.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-09-20 20:21:17,580 INFO L168 Benchmark]: RCFGBuilder took 385.33 ms. Allocated memory is still 201.3 MB. Free memory was 176.8 MB in the beginning and 158.2 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. [2019-09-20 20:21:17,581 INFO L168 Benchmark]: Sifa took 2121.14 ms. Allocated memory was 201.3 MB in the beginning and 253.8 MB in the end (delta: 52.4 MB). Free memory was 158.2 MB in the beginning and 182.9 MB in the end (delta: -24.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. [2019-09-20 20:21:17,585 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 136.3 MB. Free memory was 110.7 MB in the beginning and 110.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 378.92 ms. Allocated memory was 136.3 MB in the beginning and 201.3 MB in the end (delta: 65.0 MB). Free memory was 92.0 MB in the beginning and 178.9 MB in the end (delta: -86.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.07 ms. Allocated memory is still 201.3 MB. Free memory was 178.9 MB in the beginning and 176.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 385.33 ms. Allocated memory is still 201.3 MB. Free memory was 176.8 MB in the beginning and 158.2 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. * Sifa took 2121.14 ms. Allocated memory was 201.3 MB in the beginning and 253.8 MB in the end (delta: 52.4 MB). Free memory was 158.2 MB in the beginning and 182.9 MB in the end (delta: -24.7 MB). Peak memory consumption was 27.7 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]: 2083, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 150, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 129, TOOLS_POST_TIME[ms]: 147, TOOLS_POST_CALL_APPLICATIONS: 2, TOOLS_POST_CALL_TIME[ms]: 6, TOOLS_POST_RETURN_APPLICATIONS: 1, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 107, TOOLS_QUANTIFIERELIM_TIME[ms]: 108, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 11, FLUID_QUERY_TIME[ms]: 8, FLUID_QUERIES: 169, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 37, DOMAIN_JOIN_TIME[ms]: 1233, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 6, DOMAIN_WIDEN_TIME[ms]: 532, DOMAIN_ISSUBSETEQ_APPLICATIONS: 19, DOMAIN_ISSUBSETEQ_TIME[ms]: 15, DOMAIN_ISBOTTOM_APPLICATIONS: 16, DOMAIN_ISBOTTOM_TIME[ms]: 31, LOOP_SUMMARIZER_APPLICATIONS: 13, LOOP_SUMMARIZER_CACHE_MISSES: 13, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 1642, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 1641, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 19, 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]: 4, PATH_EXPR_TIME[ms]: 4, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 41, DAG_COMPRESSION_PROCESSED_NODES: 333, DAG_COMPRESSION_RETAINED_NODES: 107 - UnprovableResult [Line: 139]: 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 235#(and (< 2 main_~blastFlag~0) (<= main_~s__state~0 8512)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...