/usr/bin/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 CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label38.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 07:23:37,080 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 07:23:37,082 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 07:23:37,097 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 07:23:37,097 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 07:23:37,098 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 07:23:37,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 07:23:37,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 07:23:37,103 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 07:23:37,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 07:23:37,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 07:23:37,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 07:23:37,107 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 07:23:37,108 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 07:23:37,109 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 07:23:37,110 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 07:23:37,110 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 07:23:37,111 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 07:23:37,113 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 07:23:37,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 07:23:37,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 07:23:37,117 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 07:23:37,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 07:23:37,119 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 07:23:37,121 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-07 07:23:37,129 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 07:23:37,130 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 07:23:37,131 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 07:23:37,131 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 [2019-11-07 07:23:37,145 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 07:23:37,146 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 07:23:37,147 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 07:23:37,147 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 07:23:37,147 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 07:23:37,147 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 07:23:37,148 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 07:23:37,148 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 07:23:37,148 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 07:23:37,148 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 07:23:37,148 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 07:23:37,149 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 07:23:37,149 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 07:23:37,149 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 07:23:37,149 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 07:23:37,149 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 07:23:37,150 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 07:23:37,150 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 07:23:37,150 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 07:23:37,150 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 07:23:37,150 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 07:23:37,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 07:23:37,151 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 07:23:37,151 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 07:23:37,151 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 07:23:37,151 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 07:23:37,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 07:23:37,152 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 07:23:37,152 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain 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: Simplification Technique -> SIMPLIFY_QUICK [2019-11-07 07:23:37,443 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 07:23:37,458 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 07:23:37,463 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 07:23:37,464 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 07:23:37,465 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 07:23:37,465 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label38.c [2019-11-07 07:23:37,530 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1179c673/ab01ec8506d543f3a9675aa13e195354/FLAG261107059 [2019-11-07 07:23:38,100 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 07:23:38,101 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label38.c [2019-11-07 07:23:38,121 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1179c673/ab01ec8506d543f3a9675aa13e195354/FLAG261107059 [2019-11-07 07:23:38,365 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1179c673/ab01ec8506d543f3a9675aa13e195354 [2019-11-07 07:23:38,373 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 07:23:38,375 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 07:23:38,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 07:23:38,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 07:23:38,380 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 07:23:38,381 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:23:38" (1/1) ... [2019-11-07 07:23:38,384 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d2f105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:38, skipping insertion in model container [2019-11-07 07:23:38,384 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:23:38" (1/1) ... [2019-11-07 07:23:38,392 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 07:23:38,472 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 07:23:39,329 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 07:23:39,345 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 07:23:39,601 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 07:23:39,633 INFO L192 MainTranslator]: Completed translation [2019-11-07 07:23:39,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:39 WrapperNode [2019-11-07 07:23:39,634 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 07:23:39,634 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 07:23:39,635 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 07:23:39,635 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 07:23:39,651 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:39" (1/1) ... [2019-11-07 07:23:39,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:39" (1/1) ... [2019-11-07 07:23:39,698 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:39" (1/1) ... [2019-11-07 07:23:39,699 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:39" (1/1) ... [2019-11-07 07:23:39,770 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:39" (1/1) ... [2019-11-07 07:23:39,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:39" (1/1) ... [2019-11-07 07:23:39,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:39" (1/1) ... [2019-11-07 07:23:39,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 07:23:39,840 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 07:23:39,840 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 07:23:39,840 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 07:23:39,841 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:39" (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 [2019-11-07 07:23:39,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 07:23:39,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 07:23:39,911 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-11-07 07:23:39,911 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 07:23:39,911 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-11-07 07:23:39,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 07:23:39,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 07:23:39,913 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-07 07:23:39,913 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 07:23:39,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 07:23:39,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 07:23:43,444 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 07:23:43,446 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-07 07:23:43,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:23:43 BoogieIcfgContainer [2019-11-07 07:23:43,448 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 07:23:43,448 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-11-07 07:23:43,449 INFO L271 PluginConnector]: Initializing Sifa... [2019-11-07 07:23:43,450 INFO L275 PluginConnector]: Sifa initialized [2019-11-07 07:23:43,451 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:23:43" (1/1) ... [2019-11-07 07:23:43,452 INFO L79 SifaObserver]: LogSizeWrapperFluid Intern Fluid=SizeLimitFluid ♦ Abstract Domain=CompoundDomain ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ CompoundDomain Intern Domains=ExplicitValueDomain;IntervalDomain ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ SizeLimitFluid Max. Disjunctions=8 ♦ Simplification Technique=SIMPLIFY_QUICK ♦ SizeLimitFluid Max. DAG Size=-1 [2019-11-07 07:23:43,502 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-11-07 07:23:43,505 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 07:23:43,515 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 07:23:43,522 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 07:23:43,524 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-07 07:23:43,606 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 156 for LOIs [2019-11-07 07:23:45,500 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 58 [2019-11-07 07:23:45,605 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 58 [2019-11-07 07:23:45,699 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 58 [2019-11-07 07:23:48,589 INFO L197 IcfgInterpreter]: Interpreting procedure calculate_output with input of size 155 for LOIs [2019-11-07 07:23:53,465 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 58 [2019-11-07 07:23:53,585 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 58 [2019-11-07 07:23:53,705 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-07 07:23:53,719 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-11-07 07:23:53,719 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-11-07 07:23:53,721 INFO L168 Benchmark]: Toolchain (without parser) took 15345.63 ms. Allocated memory was 135.8 MB in the beginning and 740.8 MB in the end (delta: 605.0 MB). Free memory was 95.6 MB in the beginning and 419.5 MB in the end (delta: -323.9 MB). Peak memory consumption was 281.1 MB. Max. memory is 7.1 GB. [2019-11-07 07:23:53,724 INFO L168 Benchmark]: CDTParser took 1.22 ms. Allocated memory is still 135.8 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-07 07:23:53,725 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1258.08 ms. Allocated memory was 135.8 MB in the beginning and 203.9 MB in the end (delta: 68.2 MB). Free memory was 95.2 MB in the beginning and 129.7 MB in the end (delta: -34.5 MB). Peak memory consumption was 43.0 MB. Max. memory is 7.1 GB. [2019-11-07 07:23:53,726 INFO L168 Benchmark]: Boogie Preprocessor took 205.22 ms. Allocated memory is still 203.9 MB. Free memory was 129.7 MB in the beginning and 118.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2019-11-07 07:23:53,727 INFO L168 Benchmark]: RCFGBuilder took 3607.93 ms. Allocated memory was 203.9 MB in the beginning and 264.2 MB in the end (delta: 60.3 MB). Free memory was 118.2 MB in the beginning and 94.7 MB in the end (delta: 23.5 MB). Peak memory consumption was 101.2 MB. Max. memory is 7.1 GB. [2019-11-07 07:23:53,728 INFO L168 Benchmark]: Sifa took 10270.54 ms. Allocated memory was 264.2 MB in the beginning and 740.8 MB in the end (delta: 476.6 MB). Free memory was 94.7 MB in the beginning and 419.5 MB in the end (delta: -324.8 MB). Peak memory consumption was 151.8 MB. Max. memory is 7.1 GB. [2019-11-07 07:23:53,734 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.22 ms. Allocated memory is still 135.8 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1258.08 ms. Allocated memory was 135.8 MB in the beginning and 203.9 MB in the end (delta: 68.2 MB). Free memory was 95.2 MB in the beginning and 129.7 MB in the end (delta: -34.5 MB). Peak memory consumption was 43.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 205.22 ms. Allocated memory is still 203.9 MB. Free memory was 129.7 MB in the beginning and 118.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3607.93 ms. Allocated memory was 203.9 MB in the beginning and 264.2 MB in the end (delta: 60.3 MB). Free memory was 118.2 MB in the beginning and 94.7 MB in the end (delta: 23.5 MB). Peak memory consumption was 101.2 MB. Max. memory is 7.1 GB. * Sifa took 10270.54 ms. Allocated memory was 264.2 MB in the beginning and 740.8 MB in the end (delta: 476.6 MB). Free memory was 94.7 MB in the beginning and 419.5 MB in the end (delta: -324.8 MB). Peak memory consumption was 151.8 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]: 10203, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 140, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 436, TOOLS_POST_TIME[ms]: 258, TOOLS_POST_CALL_APPLICATIONS: 6, TOOLS_POST_CALL_TIME[ms]: 65, TOOLS_POST_RETURN_APPLICATIONS: 4, TOOLS_POST_RETURN_TIME[ms]: 15, TOOLS_QUANTIFIERELIM_APPLICATIONS: 446, TOOLS_QUANTIFIERELIM_TIME[ms]: 221, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 19, FLUID_QUERY_TIME[ms]: 18, FLUID_QUERIES: 450, FLUID_YES_ANSWERS: 351, DOMAIN_JOIN_APPLICATIONS: 140, DOMAIN_JOIN_TIME[ms]: 1903, DOMAIN_ALPHA_APPLICATIONS: 351, DOMAIN_ALPHA_TIME[ms]: 7224, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME[ms]: 195, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME[ms]: 7, DOMAIN_ISBOTTOM_APPLICATIONS: 140, DOMAIN_ISBOTTOM_TIME[ms]: 253, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 227, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 226, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 4, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME[ms]: 4429, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 4428, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 6, PATH_EXPR_TIME[ms]: 17, REGEX_TO_DAG_TIME[ms]: 8, DAG_COMPRESSION_TIME[ms]: 137, DAG_COMPRESSION_PROCESSED_NODES: 2499, DAG_COMPRESSION_RETAINED_NODES: 315 - UnprovableResult [Line: 1638]: 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 21707#(and (<= ~b~0 2) (<= 21 ~u~0) (not (= ~a26~0 1)) (<= 1 calculate_output_~input) (<= ~x~0 24) (= 1 ~a5~0) (<= 1 |calculate_output_#in~input|) (<= 6 ~f~0) (<= |calculate_output_#in~input| 6) (<= 1 ~a~0) (<= 23 ~w~0) (<= 3 ~c~0) (<= ~c~0 3) (<= ~z~0 26) (<= ~a18~0 1) (= ~a11~0 1) (<= 1 ~a18~0) (<= ~w~0 23) (<= 5 ~e~0) (<= ~a~0 1) (<= ~d~0 4) (= ~a18~0 1) (= 1 ~a6~0) (<= 25 ~y~0) (<= ~y~0 25) (<= 22 ~v~0) (<= calculate_output_~input 6) (<= 2 ~b~0) (<= ~f~0 6) (= 1 ~a3~0) (<= 4 ~d~0) (<= ~v~0 22) (<= ~u~0 21) (<= 26 ~z~0) (not (= ~a27~0 1)) (not (= ~a12~0 1)) (<= 24 ~x~0) (<= ~e~0 5)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...