/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_label58.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 07:23:56,362 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 07:23:56,364 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 07:23:56,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 07:23:56,384 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 07:23:56,386 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 07:23:56,388 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 07:23:56,397 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 07:23:56,399 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 07:23:56,400 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 07:23:56,401 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 07:23:56,403 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 07:23:56,404 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 07:23:56,406 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 07:23:56,408 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 07:23:56,411 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 07:23:56,412 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 07:23:56,415 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 07:23:56,416 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 07:23:56,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 07:23:56,426 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 07:23:56,429 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 07:23:56,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 07:23:56,433 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 07:23:56,435 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-07 07:23:56,444 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 07:23:56,445 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 07:23:56,446 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 07:23:56,446 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 07:23:56,474 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 07:23:56,474 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 07:23:56,479 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 07:23:56,479 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 07:23:56,479 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 07:23:56,480 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 07:23:56,480 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 07:23:56,480 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 07:23:56,480 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 07:23:56,480 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 07:23:56,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 07:23:56,482 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 07:23:56,482 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 07:23:56,482 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 07:23:56,482 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 07:23:56,483 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 07:23:56,483 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 07:23:56,483 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 07:23:56,483 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 07:23:56,484 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 07:23:56,485 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 07:23:56,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 07:23:56,486 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 07:23:56,488 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 07:23:56,488 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 07:23:56,488 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 07:23:56,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 07:23:56,488 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 07:23:56,489 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 07:23:56,756 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 07:23:56,774 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 07:23:56,777 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 07:23:56,779 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 07:23:56,779 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 07:23:56,780 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label58.c [2019-11-07 07:23:56,859 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6eb7b3634/c7f684665755478c93f7e7e5ee69706e/FLAG1f1a1bd7d [2019-11-07 07:23:57,557 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 07:23:57,560 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label58.c [2019-11-07 07:23:57,580 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6eb7b3634/c7f684665755478c93f7e7e5ee69706e/FLAG1f1a1bd7d [2019-11-07 07:23:57,769 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6eb7b3634/c7f684665755478c93f7e7e5ee69706e [2019-11-07 07:23:57,779 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 07:23:57,781 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 07:23:57,782 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 07:23:57,782 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 07:23:57,785 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 07:23:57,786 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:23:57" (1/1) ... [2019-11-07 07:23:57,789 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@102d6654 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:57, skipping insertion in model container [2019-11-07 07:23:57,790 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:23:57" (1/1) ... [2019-11-07 07:23:57,797 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 07:23:57,879 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 07:23:58,663 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 07:23:58,670 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 07:23:58,994 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 07:23:59,019 INFO L192 MainTranslator]: Completed translation [2019-11-07 07:23:59,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:59 WrapperNode [2019-11-07 07:23:59,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 07:23:59,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 07:23:59,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 07:23:59,021 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 07:23:59,037 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:59" (1/1) ... [2019-11-07 07:23:59,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:59" (1/1) ... [2019-11-07 07:23:59,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:59" (1/1) ... [2019-11-07 07:23:59,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:59" (1/1) ... [2019-11-07 07:23:59,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:59" (1/1) ... [2019-11-07 07:23:59,204 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:59" (1/1) ... [2019-11-07 07:23:59,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:59" (1/1) ... [2019-11-07 07:23:59,240 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 07:23:59,240 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 07:23:59,241 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 07:23:59,241 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 07:23:59,242 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:23:59" (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 07:23:59,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 07:23:59,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 07:23:59,313 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-11-07 07:23:59,313 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 07:23:59,314 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-11-07 07:23:59,315 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 07:23:59,315 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 07:23:59,316 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-07 07:23:59,317 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 07:23:59,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 07:23:59,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 07:24:02,530 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 07:24:02,531 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-07 07:24:02,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:24:02 BoogieIcfgContainer [2019-11-07 07:24:02,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 07:24:02,533 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-11-07 07:24:02,533 INFO L271 PluginConnector]: Initializing Sifa... [2019-11-07 07:24:02,533 INFO L275 PluginConnector]: Sifa initialized [2019-11-07 07:24:02,535 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:24:02" (1/1) ... [2019-11-07 07:24:02,535 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 07:24:02,563 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-11-07 07:24:02,564 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 07:24:02,574 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 07:24:02,583 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 07:24:02,584 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-07 07:24:02,692 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 156 for LOIs [2019-11-07 07:24:04,654 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 17 [2019-11-07 07:24:04,667 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 17 [2019-11-07 07:24:04,681 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 17 [2019-11-07 07:24:04,884 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 72 [2019-11-07 07:24:04,888 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 19 [2019-11-07 07:24:04,907 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 44 [2019-11-07 07:24:08,592 INFO L197 IcfgInterpreter]: Interpreting procedure calculate_output with input of size 155 for LOIs [2019-11-07 07:24:15,810 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 17 [2019-11-07 07:24:15,851 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 17 [2019-11-07 07:24:15,914 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-07 07:24:15,927 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-11-07 07:24:15,927 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-11-07 07:24:15,929 INFO L168 Benchmark]: Toolchain (without parser) took 18147.99 ms. Allocated memory was 145.2 MB in the beginning and 706.2 MB in the end (delta: 561.0 MB). Free memory was 97.4 MB in the beginning and 426.5 MB in the end (delta: -329.0 MB). Peak memory consumption was 231.9 MB. Max. memory is 7.1 GB. [2019-11-07 07:24:15,930 INFO L168 Benchmark]: CDTParser took 1.18 ms. Allocated memory is still 145.2 MB. Free memory is still 121.2 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-11-07 07:24:15,931 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1238.93 ms. Allocated memory was 145.2 MB in the beginning and 204.5 MB in the end (delta: 59.2 MB). Free memory was 97.0 MB in the beginning and 122.5 MB in the end (delta: -25.5 MB). Peak memory consumption was 41.8 MB. Max. memory is 7.1 GB. [2019-11-07 07:24:15,932 INFO L168 Benchmark]: Boogie Preprocessor took 219.19 ms. Allocated memory is still 204.5 MB. Free memory was 121.5 MB in the beginning and 110.2 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2019-11-07 07:24:15,933 INFO L168 Benchmark]: RCFGBuilder took 3292.12 ms. Allocated memory was 204.5 MB in the beginning and 308.8 MB in the end (delta: 104.3 MB). Free memory was 110.2 MB in the beginning and 246.5 MB in the end (delta: -136.3 MB). Peak memory consumption was 80.5 MB. Max. memory is 7.1 GB. [2019-11-07 07:24:15,934 INFO L168 Benchmark]: Sifa took 13394.00 ms. Allocated memory was 308.8 MB in the beginning and 706.2 MB in the end (delta: 397.4 MB). Free memory was 246.5 MB in the beginning and 426.5 MB in the end (delta: -179.9 MB). Peak memory consumption was 217.5 MB. Max. memory is 7.1 GB. [2019-11-07 07:24:15,938 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.18 ms. Allocated memory is still 145.2 MB. Free memory is still 121.2 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1238.93 ms. Allocated memory was 145.2 MB in the beginning and 204.5 MB in the end (delta: 59.2 MB). Free memory was 97.0 MB in the beginning and 122.5 MB in the end (delta: -25.5 MB). Peak memory consumption was 41.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 219.19 ms. Allocated memory is still 204.5 MB. Free memory was 121.5 MB in the beginning and 110.2 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3292.12 ms. Allocated memory was 204.5 MB in the beginning and 308.8 MB in the end (delta: 104.3 MB). Free memory was 110.2 MB in the beginning and 246.5 MB in the end (delta: -136.3 MB). Peak memory consumption was 80.5 MB. Max. memory is 7.1 GB. * Sifa took 13394.00 ms. Allocated memory was 308.8 MB in the beginning and 706.2 MB in the end (delta: 397.4 MB). Free memory was 246.5 MB in the beginning and 426.5 MB in the end (delta: -179.9 MB). Peak memory consumption was 217.5 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]: 13352, 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]: 403, TOOLS_POST_CALL_APPLICATIONS: 6, TOOLS_POST_CALL_TIME[ms]: 85, TOOLS_POST_RETURN_APPLICATIONS: 4, TOOLS_POST_RETURN_TIME[ms]: 25, TOOLS_QUANTIFIERELIM_APPLICATIONS: 446, TOOLS_QUANTIFIERELIM_TIME[ms]: 364, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 54, FLUID_QUERY_TIME[ms]: 23, FLUID_QUERIES: 450, FLUID_YES_ANSWERS: 351, DOMAIN_JOIN_APPLICATIONS: 140, DOMAIN_JOIN_TIME[ms]: 2551, DOMAIN_ALPHA_APPLICATIONS: 351, DOMAIN_ALPHA_TIME[ms]: 9539, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME[ms]: 244, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME[ms]: 12, DOMAIN_ISBOTTOM_APPLICATIONS: 140, DOMAIN_ISBOTTOM_TIME[ms]: 255, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 298, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 298, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 4, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME[ms]: 5200, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 5199, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 6, PATH_EXPR_TIME[ms]: 16, REGEX_TO_DAG_TIME[ms]: 8, DAG_COMPRESSION_TIME[ms]: 84, DAG_COMPRESSION_PROCESSED_NODES: 2364, DAG_COMPRESSION_RETAINED_NODES: 315 - UnprovableResult [Line: 1515]: 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 21804#(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) (not (= ~a11~0 1)) (<= 23 ~w~0) (<= 3 ~c~0) (<= ~c~0 3) (<= ~z~0 26) (<= ~a18~0 1) (= ~a12~0 1) (<= 1 ~a18~0) (<= ~w~0 23) (<= 5 ~e~0) (<= ~a~0 1) (<= ~d~0 4) (= ~a18~0 1) (<= 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 (= 1 ~a6~0)) (<= 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...