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 IntervalDomain -i ../../../trunk/examples/svcomp/loop-lit/gj2007.c.i.p+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-06 09:07:47,311 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-06 09:07:47,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-06 09:07:47,324 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-06 09:07:47,324 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-06 09:07:47,325 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-06 09:07:47,327 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-06 09:07:47,328 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-06 09:07:47,330 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-06 09:07:47,331 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-06 09:07:47,332 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-06 09:07:47,333 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-06 09:07:47,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-06 09:07:47,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-06 09:07:47,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-06 09:07:47,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-06 09:07:47,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-06 09:07:47,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-06 09:07:47,340 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-06 09:07:47,342 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-06 09:07:47,343 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-06 09:07:47,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-06 09:07:47,345 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-06 09:07:47,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-06 09:07:47,348 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-06 09:07:47,348 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-06 09:07:47,349 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-06 09:07:47,349 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-06 09:07:47,350 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-06 09:07:47,351 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-06 09:07:47,351 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-06 09:07:47,352 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-06 09:07:47,353 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-06 09:07:47,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-06 09:07:47,354 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-06 09:07:47,355 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-06 09:07:47,355 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-06 09:07:47,355 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-06 09:07:47,356 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-06 09:07:47,356 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-06 09:07:47,357 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-06 09:07:47,358 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-06 09:07:47,383 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-06 09:07:47,383 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-06 09:07:47,384 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-06 09:07:47,384 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-06 09:07:47,385 INFO L138 SettingsManager]: * Use SBE=true [2019-09-06 09:07:47,385 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-06 09:07:47,385 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-06 09:07:47,385 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-06 09:07:47,385 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-06 09:07:47,386 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-06 09:07:47,386 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-06 09:07:47,386 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-06 09:07:47,386 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-06 09:07:47,386 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-06 09:07:47,387 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-06 09:07:47,387 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-06 09:07:47,387 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-06 09:07:47,387 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-06 09:07:47,387 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-06 09:07:47,388 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-06 09:07:47,388 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-06 09:07:47,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-06 09:07:47,388 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-06 09:07:47,388 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-06 09:07:47,389 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-06 09:07:47,389 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-06 09:07:47,389 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-06 09:07:47,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-06 09:07:47,389 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2019-09-06 09:07:47,418 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-06 09:07:47,430 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-06 09:07:47,434 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-06 09:07:47,437 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-06 09:07:47,438 INFO L275 PluginConnector]: CDTParser initialized [2019-09-06 09:07:47,439 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/gj2007.c.i.p+lhb-reducer.c [2019-09-06 09:07:47,512 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f631dd2b/e5580cf6c8fc4fd388517a2a1b6ce06b/FLAGd90f68ae1 [2019-09-06 09:07:47,976 INFO L306 CDTParser]: Found 1 translation units. [2019-09-06 09:07:47,976 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gj2007.c.i.p+lhb-reducer.c [2019-09-06 09:07:47,988 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f631dd2b/e5580cf6c8fc4fd388517a2a1b6ce06b/FLAGd90f68ae1 [2019-09-06 09:07:48,336 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f631dd2b/e5580cf6c8fc4fd388517a2a1b6ce06b [2019-09-06 09:07:48,348 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-06 09:07:48,350 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-06 09:07:48,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-06 09:07:48,351 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-06 09:07:48,354 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-06 09:07:48,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.09 09:07:48" (1/1) ... [2019-09-06 09:07:48,357 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f8f1870 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:07:48, skipping insertion in model container [2019-09-06 09:07:48,357 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.09 09:07:48" (1/1) ... [2019-09-06 09:07:48,364 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-06 09:07:48,390 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-06 09:07:48,567 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-06 09:07:48,573 INFO L188 MainTranslator]: Completed pre-run [2019-09-06 09:07:48,601 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-06 09:07:48,721 INFO L192 MainTranslator]: Completed translation [2019-09-06 09:07:48,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:07:48 WrapperNode [2019-09-06 09:07:48,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-06 09:07:48,722 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-06 09:07:48,723 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-06 09:07:48,723 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-06 09:07:48,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:07:48" (1/1) ... [2019-09-06 09:07:48,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:07:48" (1/1) ... [2019-09-06 09:07:48,744 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:07:48" (1/1) ... [2019-09-06 09:07:48,744 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:07:48" (1/1) ... [2019-09-06 09:07:48,754 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:07:48" (1/1) ... [2019-09-06 09:07:48,761 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:07:48" (1/1) ... [2019-09-06 09:07:48,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:07:48" (1/1) ... [2019-09-06 09:07:48,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-06 09:07:48,765 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-06 09:07:48,765 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-06 09:07:48,765 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-06 09:07:48,766 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:07:48" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-06 09:07:48,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-06 09:07:48,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-06 09:07:48,818 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-06 09:07:48,818 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-06 09:07:48,818 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-06 09:07:48,818 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-06 09:07:48,819 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-06 09:07:48,819 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-06 09:07:48,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-06 09:07:48,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-06 09:07:49,125 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-06 09:07:49,125 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-06 09:07:49,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.09 09:07:49 BoogieIcfgContainer [2019-09-06 09:07:49,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-06 09:07:49,130 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-06 09:07:49,130 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-06 09:07:49,131 INFO L275 PluginConnector]: Sifa initialized [2019-09-06 09:07:49,132 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.09 09:07:49" (1/1) ... [2019-09-06 09:07:49,132 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=IntervalDomain ♦ Abstract when formula's dag size exceeds (negative numbers disable this limit)=-1 ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ Abstract when formula has more disjuncts than (negative numbers disable this limit)=8 ♦ Call Summarizer=ReUseSupersetCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=NONE ♦ Intern Fluid=SizeLimitFluid [2019-09-06 09:07:49,161 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-06 09:07:49,161 INFO L169 IcfgInterpreter]: Building call graph [2019-09-06 09:07:49,169 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-06 09:07:49,178 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-06 09:07:49,179 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-06 09:07:49,253 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 10 for LOIs [2019-09-06 09:07:49,477 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-06 09:07:49,477 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-06 09:07:49,479 INFO L193 IcfgInterpreter]: Reachable states at location mainErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 69#(and (<= 0 ~__return_720~0) (<= 50 main_~main__y~0) (<= 0 |old(~__return_720~0)|) (<= 100 main_~main__x~0) (<= 0 main_~__VERIFIER_assert__cond~0) (<= main_~__VERIFIER_assert__cond~0 0) (<= 0 ~__return_main~0) (<= main_~__tmp_1~0 0) (<= ~__return_720~0 0) (<= 0 main_~__tmp_1~0) (<= |old(~__return_720~0)| 0) (<= ~__return_main~0 0)) [2019-09-06 09:07:49,494 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-06 09:07:49,494 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-06 09:07:49,496 INFO L168 Benchmark]: Toolchain (without parser) took 1145.76 ms. Allocated memory was 141.0 MB in the beginning and 201.3 MB in the end (delta: 60.3 MB). Free memory was 89.2 MB in the beginning and 144.0 MB in the end (delta: -54.8 MB). Peak memory consumption was 5.5 MB. Max. memory is 7.1 GB. [2019-09-06 09:07:49,497 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 141.0 MB. Free memory was 107.2 MB in the beginning and 107.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-09-06 09:07:49,498 INFO L168 Benchmark]: CACSL2BoogieTranslator took 370.90 ms. Allocated memory was 141.0 MB in the beginning and 201.3 MB in the end (delta: 60.3 MB). Free memory was 89.0 MB in the beginning and 179.9 MB in the end (delta: -90.9 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. [2019-09-06 09:07:49,499 INFO L168 Benchmark]: Boogie Preprocessor took 42.32 ms. Allocated memory is still 201.3 MB. Free memory was 179.9 MB in the beginning and 177.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-09-06 09:07:49,500 INFO L168 Benchmark]: RCFGBuilder took 361.60 ms. Allocated memory is still 201.3 MB. Free memory was 177.7 MB in the beginning and 161.2 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. [2019-09-06 09:07:49,500 INFO L168 Benchmark]: Sifa took 363.86 ms. Allocated memory is still 201.3 MB. Free memory was 161.2 MB in the beginning and 144.0 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 7.1 GB. [2019-09-06 09:07:49,504 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 141.0 MB. Free memory was 107.2 MB in the beginning and 107.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 370.90 ms. Allocated memory was 141.0 MB in the beginning and 201.3 MB in the end (delta: 60.3 MB). Free memory was 89.0 MB in the beginning and 179.9 MB in the end (delta: -90.9 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 42.32 ms. Allocated memory is still 201.3 MB. Free memory was 179.9 MB in the beginning and 177.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 361.60 ms. Allocated memory is still 201.3 MB. Free memory was 177.7 MB in the beginning and 161.2 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. * Sifa took 363.86 ms. Allocated memory is still 201.3 MB. Free memory was 161.2 MB in the beginning and 144.0 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 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]: 319, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 48, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 42, TOOLS_POST_TIME[ms]: 85, TOOLS_POST_CALL_APPLICATIONS: 2, TOOLS_POST_CALL_TIME[ms]: 21, TOOLS_POST_RETURN_APPLICATIONS: 1, TOOLS_POST_RETURN_TIME[ms]: 1, TOOLS_QUANTIFIERELIM_TIME[ms]: 73, FLUID_QUERY_TIME[ms]: 6, FLUID_QUERIES: 51, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 20, DOMAIN_JOIN_TIME[ms]: 53, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME[ms]: 6, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME[ms]: 24, DOMAIN_ISBOTTOM_APPLICATIONS: 12, DOMAIN_ISBOTTOM_TIME[ms]: 23, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 81, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 81, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, CALL_SUMMARIZER_APPLICATIONS: 1, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 20, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 8, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 30, DAG_COMPRESSION_PROCESSED_NODES: 197, DAG_COMPRESSION_RETAINED_NODES: 124 - UnprovableResult [Line: 91]: 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 69#(and (<= 0 ~__return_720~0) (<= 50 main_~main__y~0) (<= 0 |old(~__return_720~0)|) (<= 100 main_~main__x~0) (<= 0 main_~__VERIFIER_assert__cond~0) (<= main_~__VERIFIER_assert__cond~0 0) (<= 0 ~__return_main~0) (<= main_~__tmp_1~0 0) (<= ~__return_720~0 0) (<= 0 main_~__tmp_1~0) (<= |old(~__return_720~0)| 0) (<= ~__return_main~0 0)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...