/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/Problem02_label07.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 07:22:02,698 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 07:22:02,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 07:22:02,712 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 07:22:02,713 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 07:22:02,714 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 07:22:02,715 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 07:22:02,717 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 07:22:02,719 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 07:22:02,720 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 07:22:02,721 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 07:22:02,725 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 07:22:02,725 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 07:22:02,726 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 07:22:02,729 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 07:22:02,731 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 07:22:02,732 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 07:22:02,733 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 07:22:02,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 07:22:02,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 07:22:02,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 07:22:02,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 07:22:02,746 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 07:22:02,747 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 07:22:02,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-07 07:22:02,767 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 07:22:02,771 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 07:22:02,772 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 07:22:02,772 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 07:22:02,794 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 07:22:02,794 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 07:22:02,795 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 07:22:02,796 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 07:22:02,796 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 07:22:02,796 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 07:22:02,796 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 07:22:02,797 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 07:22:02,797 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 07:22:02,797 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 07:22:02,797 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 07:22:02,797 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 07:22:02,798 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 07:22:02,798 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 07:22:02,798 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 07:22:02,798 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 07:22:02,798 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 07:22:02,799 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 07:22:02,799 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 07:22:02,799 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 07:22:02,799 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 07:22:02,799 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 07:22:02,800 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 07:22:02,800 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 07:22:02,800 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 07:22:02,800 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 07:22:02,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 07:22:02,801 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 07:22:02,801 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 07:22:03,118 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 07:22:03,130 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 07:22:03,133 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 07:22:03,135 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 07:22:03,135 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 07:22:03,136 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label07.c [2019-11-07 07:22:03,206 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e83d42db4/16fde099d8364afe95ec0f5096465175/FLAG312e9da61 [2019-11-07 07:22:03,779 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 07:22:03,780 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label07.c [2019-11-07 07:22:03,797 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e83d42db4/16fde099d8364afe95ec0f5096465175/FLAG312e9da61 [2019-11-07 07:22:04,055 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e83d42db4/16fde099d8364afe95ec0f5096465175 [2019-11-07 07:22:04,068 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 07:22:04,071 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 07:22:04,073 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 07:22:04,073 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 07:22:04,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 07:22:04,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:22:04" (1/1) ... [2019-11-07 07:22:04,080 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e89fa84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:04, skipping insertion in model container [2019-11-07 07:22:04,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:22:04" (1/1) ... [2019-11-07 07:22:04,089 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 07:22:04,144 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 07:22:04,667 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 07:22:04,673 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 07:22:04,779 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 07:22:04,797 INFO L192 MainTranslator]: Completed translation [2019-11-07 07:22:04,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:04 WrapperNode [2019-11-07 07:22:04,798 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 07:22:04,799 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 07:22:04,799 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 07:22:04,800 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 07:22:04,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:04" (1/1) ... [2019-11-07 07:22:04,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:04" (1/1) ... [2019-11-07 07:22:04,831 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:04" (1/1) ... [2019-11-07 07:22:04,831 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:04" (1/1) ... [2019-11-07 07:22:04,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:04" (1/1) ... [2019-11-07 07:22:04,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:04" (1/1) ... [2019-11-07 07:22:04,905 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:04" (1/1) ... [2019-11-07 07:22:04,912 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 07:22:04,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 07:22:04,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 07:22:04,913 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 07:22:04,914 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:04" (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 07:22:04,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 07:22:04,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 07:22:04,985 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-11-07 07:22:04,985 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 07:22:04,986 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-11-07 07:22:04,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 07:22:04,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 07:22:04,986 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-07 07:22:04,986 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 07:22:04,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 07:22:04,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 07:22:07,163 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 07:22:07,163 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-07 07:22:07,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:22:07 BoogieIcfgContainer [2019-11-07 07:22:07,165 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 07:22:07,166 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-11-07 07:22:07,168 INFO L271 PluginConnector]: Initializing Sifa... [2019-11-07 07:22:07,168 INFO L275 PluginConnector]: Sifa initialized [2019-11-07 07:22:07,170 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:22:07" (1/1) ... [2019-11-07 07:22:07,170 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 07:22:07,218 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-11-07 07:22:07,219 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 07:22:07,235 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 07:22:07,245 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 07:22:07,247 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-07 07:22:07,332 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 59 for LOIs [2019-11-07 07:22:07,927 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 59 [2019-11-07 07:22:08,088 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 59 [2019-11-07 07:22:08,231 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 59 [2019-11-07 07:22:09,519 INFO L197 IcfgInterpreter]: Interpreting procedure calculate_output with input of size 78 for LOIs [2019-11-07 07:22:10,491 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 59 [2019-11-07 07:22:10,771 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 59 [2019-11-07 07:22:11,135 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-07 07:22:11,158 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-11-07 07:22:11,158 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-11-07 07:22:11,163 INFO L168 Benchmark]: Toolchain (without parser) took 7089.44 ms. Allocated memory was 144.2 MB in the beginning and 349.2 MB in the end (delta: 205.0 MB). Free memory was 100.0 MB in the beginning and 216.6 MB in the end (delta: -116.6 MB). Peak memory consumption was 88.4 MB. Max. memory is 7.1 GB. [2019-11-07 07:22:11,164 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 144.2 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-07 07:22:11,166 INFO L168 Benchmark]: CACSL2BoogieTranslator took 726.47 ms. Allocated memory was 144.2 MB in the beginning and 204.5 MB in the end (delta: 60.3 MB). Free memory was 99.8 MB in the beginning and 170.8 MB in the end (delta: -71.0 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB. [2019-11-07 07:22:11,168 INFO L168 Benchmark]: Boogie Preprocessor took 112.83 ms. Allocated memory is still 204.5 MB. Free memory was 170.8 MB in the beginning and 165.7 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. [2019-11-07 07:22:11,169 INFO L168 Benchmark]: RCFGBuilder took 2253.22 ms. Allocated memory was 204.5 MB in the beginning and 255.3 MB in the end (delta: 50.9 MB). Free memory was 165.7 MB in the beginning and 202.2 MB in the end (delta: -36.6 MB). Peak memory consumption was 118.1 MB. Max. memory is 7.1 GB. [2019-11-07 07:22:11,175 INFO L168 Benchmark]: Sifa took 3992.74 ms. Allocated memory was 255.3 MB in the beginning and 349.2 MB in the end (delta: 93.8 MB). Free memory was 202.2 MB in the beginning and 216.6 MB in the end (delta: -14.4 MB). Peak memory consumption was 79.4 MB. Max. memory is 7.1 GB. [2019-11-07 07:22:11,187 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 144.2 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 726.47 ms. Allocated memory was 144.2 MB in the beginning and 204.5 MB in the end (delta: 60.3 MB). Free memory was 99.8 MB in the beginning and 170.8 MB in the end (delta: -71.0 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 112.83 ms. Allocated memory is still 204.5 MB. Free memory was 170.8 MB in the beginning and 165.7 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2253.22 ms. Allocated memory was 204.5 MB in the beginning and 255.3 MB in the end (delta: 50.9 MB). Free memory was 165.7 MB in the beginning and 202.2 MB in the end (delta: -36.6 MB). Peak memory consumption was 118.1 MB. Max. memory is 7.1 GB. * Sifa took 3992.74 ms. Allocated memory was 255.3 MB in the beginning and 349.2 MB in the end (delta: 93.8 MB). Free memory was 202.2 MB in the beginning and 216.6 MB in the end (delta: -14.4 MB). Peak memory consumption was 79.4 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]: 3918, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 76, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 244, TOOLS_POST_TIME[ms]: 158, TOOLS_POST_CALL_APPLICATIONS: 5, TOOLS_POST_CALL_TIME[ms]: 42, TOOLS_POST_RETURN_APPLICATIONS: 3, TOOLS_POST_RETURN_TIME[ms]: 28, TOOLS_QUANTIFIERELIM_APPLICATIONS: 252, TOOLS_QUANTIFIERELIM_TIME[ms]: 155, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 17, FLUID_QUERY_TIME[ms]: 22, FLUID_QUERIES: 257, FLUID_YES_ANSWERS: 114, DOMAIN_JOIN_APPLICATIONS: 76, DOMAIN_JOIN_TIME[ms]: 837, DOMAIN_ALPHA_APPLICATIONS: 114, DOMAIN_ALPHA_TIME[ms]: 2452, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME[ms]: 86, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME[ms]: 8, DOMAIN_ISBOTTOM_APPLICATIONS: 76, DOMAIN_ISBOTTOM_TIME[ms]: 103, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 2170, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 2169, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 3, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME[ms]: 2028, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 2027, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 8, PATH_EXPR_TIME[ms]: 11, REGEX_TO_DAG_TIME[ms]: 8, DAG_COMPRESSION_TIME[ms]: 62, DAG_COMPRESSION_PROCESSED_NODES: 1348, DAG_COMPRESSION_RETAINED_NODES: 188 - UnprovableResult [Line: 589]: 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 2985#(and (<= 21 ~u~0) (<= 1 calculate_output_~input) (<= ~x~0 24) (<= 1 |calculate_output_#in~input|) (<= 6 ~f~0) (<= |calculate_output_#in~input| 6) (<= 1 ~a~0) (= ~a25~0 1) (= ~a21~0 1) (<= 23 ~w~0) (<= 3 ~c~0) (<= ~c~0 3) (<= ~z~0 26) (= ~a19~0 1) (= ~a11~0 1) (<= ~w~0 23) (<= 5 ~e~0) (<= ~a~0 1) (= ~a28~0 11) (<= 1 ~a21~0) (<= ~d~0 4) (<= 25 ~y~0) (<= ~y~0 25) (<= 22 ~v~0) (<= ~a21~0 1) (<= calculate_output_~input 6) (<= ~f~0 6) (= ~a17~0 7) (<= 4 ~d~0) (<= ~v~0 22) (<= ~u~0 21) (<= 26 ~z~0) (<= 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...