/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_label41.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 07:22:50,413 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 07:22:50,416 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 07:22:50,434 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 07:22:50,434 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 07:22:50,436 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 07:22:50,438 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 07:22:50,447 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 07:22:50,452 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 07:22:50,455 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 07:22:50,456 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 07:22:50,457 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 07:22:50,458 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 07:22:50,459 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 07:22:50,461 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 07:22:50,463 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 07:22:50,464 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 07:22:50,465 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 07:22:50,466 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 07:22:50,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 07:22:50,475 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 07:22:50,478 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 07:22:50,481 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 07:22:50,481 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 07:22:50,484 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-07 07:22:50,495 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 07:22:50,495 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 07:22:50,496 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 07:22:50,497 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 07:22:50,516 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 07:22:50,520 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 07:22:50,524 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 07:22:50,524 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 07:22:50,525 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 07:22:50,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 07:22:50,525 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 07:22:50,525 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 07:22:50,525 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 07:22:50,526 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 07:22:50,526 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 07:22:50,527 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 07:22:50,527 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 07:22:50,527 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 07:22:50,527 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 07:22:50,527 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 07:22:50,527 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 07:22:50,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 07:22:50,528 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 07:22:50,528 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 07:22:50,528 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 07:22:50,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 07:22:50,530 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 07:22:50,530 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 07:22:50,530 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 07:22:50,530 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 07:22:50,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 07:22:50,531 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 07:22:50,531 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 07:22:50,792 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 07:22:50,805 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 07:22:50,809 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 07:22:50,811 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 07:22:50,811 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 07:22:50,812 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label41.c [2019-11-07 07:22:50,890 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea63c2c82/66cfbc2c1d8b4b06adfc59d13c5ce520/FLAGc48fd1fc2 [2019-11-07 07:22:51,491 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 07:22:51,492 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label41.c [2019-11-07 07:22:51,507 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea63c2c82/66cfbc2c1d8b4b06adfc59d13c5ce520/FLAGc48fd1fc2 [2019-11-07 07:22:51,712 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea63c2c82/66cfbc2c1d8b4b06adfc59d13c5ce520 [2019-11-07 07:22:51,720 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 07:22:51,722 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 07:22:51,723 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 07:22:51,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 07:22:51,726 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 07:22:51,727 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:22:51" (1/1) ... [2019-11-07 07:22:51,730 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c70f143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:51, skipping insertion in model container [2019-11-07 07:22:51,730 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:22:51" (1/1) ... [2019-11-07 07:22:51,738 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 07:22:51,796 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 07:22:52,300 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 07:22:52,314 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 07:22:52,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 07:22:52,465 INFO L192 MainTranslator]: Completed translation [2019-11-07 07:22:52,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:52 WrapperNode [2019-11-07 07:22:52,466 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 07:22:52,467 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 07:22:52,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 07:22:52,467 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 07:22:52,482 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:52" (1/1) ... [2019-11-07 07:22:52,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:52" (1/1) ... [2019-11-07 07:22:52,520 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:52" (1/1) ... [2019-11-07 07:22:52,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:52" (1/1) ... [2019-11-07 07:22:52,577 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:52" (1/1) ... [2019-11-07 07:22:52,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:52" (1/1) ... [2019-11-07 07:22:52,606 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:52" (1/1) ... [2019-11-07 07:22:52,615 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 07:22:52,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 07:22:52,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 07:22:52,616 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 07:22:52,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:52" (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 07:22:52,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 07:22:52,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 07:22:52,687 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-11-07 07:22:52,687 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 07:22:52,687 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-11-07 07:22:52,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 07:22:52,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 07:22:52,689 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-07 07:22:52,689 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 07:22:52,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 07:22:52,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 07:22:54,705 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 07:22:54,705 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-07 07:22:54,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:22:54 BoogieIcfgContainer [2019-11-07 07:22:54,707 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 07:22:54,707 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-11-07 07:22:54,708 INFO L271 PluginConnector]: Initializing Sifa... [2019-11-07 07:22:54,708 INFO L275 PluginConnector]: Sifa initialized [2019-11-07 07:22:54,709 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:22:54" (1/1) ... [2019-11-07 07:22:54,710 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 07:22:54,735 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-11-07 07:22:54,735 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 07:22:54,744 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 07:22:54,752 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 07:22:54,753 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-07 07:22:54,820 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 59 for LOIs [2019-11-07 07:22:55,394 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2019-11-07 07:22:55,408 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2019-11-07 07:22:55,424 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2019-11-07 07:22:55,599 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 67 [2019-11-07 07:22:55,600 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 20 [2019-11-07 07:22:55,611 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 51 [2019-11-07 07:22:56,689 INFO L197 IcfgInterpreter]: Interpreting procedure calculate_output with input of size 78 for LOIs [2019-11-07 07:22:57,457 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2019-11-07 07:22:57,488 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2019-11-07 07:22:57,540 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-07 07:22:57,556 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-11-07 07:22:57,556 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-11-07 07:22:57,559 INFO L168 Benchmark]: Toolchain (without parser) took 5836.66 ms. Allocated memory was 144.7 MB in the beginning and 339.2 MB in the end (delta: 194.5 MB). Free memory was 99.5 MB in the beginning and 261.6 MB in the end (delta: -162.1 MB). Peak memory consumption was 32.4 MB. Max. memory is 7.1 GB. [2019-11-07 07:22:57,561 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 144.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-07 07:22:57,563 INFO L168 Benchmark]: CACSL2BoogieTranslator took 743.91 ms. Allocated memory was 144.7 MB in the beginning and 204.5 MB in the end (delta: 59.8 MB). Free memory was 99.3 MB in the beginning and 171.1 MB in the end (delta: -71.8 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. [2019-11-07 07:22:57,564 INFO L168 Benchmark]: Boogie Preprocessor took 148.68 ms. Allocated memory is still 204.5 MB. Free memory was 171.1 MB in the beginning and 166.2 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2019-11-07 07:22:57,565 INFO L168 Benchmark]: RCFGBuilder took 2091.18 ms. Allocated memory was 204.5 MB in the beginning and 250.1 MB in the end (delta: 45.6 MB). Free memory was 166.2 MB in the beginning and 200.1 MB in the end (delta: -33.9 MB). Peak memory consumption was 118.6 MB. Max. memory is 7.1 GB. [2019-11-07 07:22:57,572 INFO L168 Benchmark]: Sifa took 2849.21 ms. Allocated memory was 250.1 MB in the beginning and 339.2 MB in the end (delta: 89.1 MB). Free memory was 200.1 MB in the beginning and 261.6 MB in the end (delta: -61.5 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. [2019-11-07 07:22:57,582 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 144.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 743.91 ms. Allocated memory was 144.7 MB in the beginning and 204.5 MB in the end (delta: 59.8 MB). Free memory was 99.3 MB in the beginning and 171.1 MB in the end (delta: -71.8 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 148.68 ms. Allocated memory is still 204.5 MB. Free memory was 171.1 MB in the beginning and 166.2 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2091.18 ms. Allocated memory was 204.5 MB in the beginning and 250.1 MB in the end (delta: 45.6 MB). Free memory was 166.2 MB in the beginning and 200.1 MB in the end (delta: -33.9 MB). Peak memory consumption was 118.6 MB. Max. memory is 7.1 GB. * Sifa took 2849.21 ms. Allocated memory was 250.1 MB in the beginning and 339.2 MB in the end (delta: 89.1 MB). Free memory was 200.1 MB in the beginning and 261.6 MB in the end (delta: -61.5 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]: 2806, 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]: 155, TOOLS_POST_CALL_APPLICATIONS: 5, TOOLS_POST_CALL_TIME[ms]: 35, TOOLS_POST_RETURN_APPLICATIONS: 3, TOOLS_POST_RETURN_TIME[ms]: 17, TOOLS_QUANTIFIERELIM_APPLICATIONS: 252, TOOLS_QUANTIFIERELIM_TIME[ms]: 140, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 16, FLUID_QUERY_TIME[ms]: 14, FLUID_QUERIES: 257, FLUID_YES_ANSWERS: 114, DOMAIN_JOIN_APPLICATIONS: 76, DOMAIN_JOIN_TIME[ms]: 941, DOMAIN_ALPHA_APPLICATIONS: 114, DOMAIN_ALPHA_TIME[ms]: 1297, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME[ms]: 75, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME[ms]: 8, DOMAIN_ISBOTTOM_APPLICATIONS: 76, DOMAIN_ISBOTTOM_TIME[ms]: 127, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 1858, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 1858, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 3, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME[ms]: 1742, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 1742, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 6, PATH_EXPR_TIME[ms]: 9, REGEX_TO_DAG_TIME[ms]: 7, DAG_COMPRESSION_TIME[ms]: 48, DAG_COMPRESSION_PROCESSED_NODES: 1345, DAG_COMPRESSION_RETAINED_NODES: 188 - UnprovableResult [Line: 442]: 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 3023#(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) (= ~a28~0 8) (= ~a19~0 1) (= ~a11~0 1) (<= ~w~0 23) (<= 5 ~e~0) (<= ~a~0 1) (<= 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) (<= 4 ~d~0) (<= ~v~0 22) (<= ~u~0 21) (<= 26 ~z~0) (= ~a17~0 8) (<= 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...