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+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-0883e75 [2019-09-05 11:15:18,138 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-05 11:15:18,140 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-05 11:15:18,152 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-05 11:15:18,152 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-05 11:15:18,153 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-05 11:15:18,155 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-05 11:15:18,156 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-05 11:15:18,158 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-05 11:15:18,159 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-05 11:15:18,160 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-05 11:15:18,161 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-05 11:15:18,161 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-05 11:15:18,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-05 11:15:18,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-05 11:15:18,164 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-05 11:15:18,165 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-05 11:15:18,166 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-05 11:15:18,168 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-05 11:15:18,170 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-05 11:15:18,171 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-05 11:15:18,172 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-05 11:15:18,173 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-05 11:15:18,174 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-05 11:15:18,176 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-05 11:15:18,177 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-05 11:15:18,177 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-05 11:15:18,178 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-05 11:15:18,178 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-05 11:15:18,179 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-05 11:15:18,179 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-05 11:15:18,180 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-05 11:15:18,181 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-05 11:15:18,182 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-05 11:15:18,183 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-05 11:15:18,183 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-05 11:15:18,184 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-05 11:15:18,184 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-05 11:15:18,184 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-05 11:15:18,185 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-05 11:15:18,186 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-05 11:15:18,186 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 [2019-09-05 11:15:18,214 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-05 11:15:18,214 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-05 11:15:18,216 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-05 11:15:18,216 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-05 11:15:18,218 INFO L138 SettingsManager]: * Use SBE=true [2019-09-05 11:15:18,218 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-05 11:15:18,219 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-05 11:15:18,219 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-05 11:15:18,219 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-05 11:15:18,219 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-05 11:15:18,219 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-05 11:15:18,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-05 11:15:18,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-05 11:15:18,220 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-05 11:15:18,220 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-05 11:15:18,220 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-05 11:15:18,220 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-05 11:15:18,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-05 11:15:18,221 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-05 11:15:18,221 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-05 11:15:18,223 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-05 11:15:18,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-05 11:15:18,223 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-05 11:15:18,223 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-05 11:15:18,224 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-05 11:15:18,224 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-05 11:15:18,224 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-05 11:15:18,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-05 11:15:18,224 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 [2019-09-05 11:15:18,274 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-05 11:15:18,287 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-05 11:15:18,290 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-05 11:15:18,292 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-05 11:15:18,292 INFO L275 PluginConnector]: CDTParser initialized [2019-09-05 11:15:18,293 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/gj2007.c.i.p+nlh-reducer.c [2019-09-05 11:15:18,355 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f3969790/8787ee38a81747f0a18c7c2b00a825c8/FLAG15ec70b52 [2019-09-05 11:15:18,856 INFO L306 CDTParser]: Found 1 translation units. [2019-09-05 11:15:18,859 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gj2007.c.i.p+nlh-reducer.c [2019-09-05 11:15:18,877 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f3969790/8787ee38a81747f0a18c7c2b00a825c8/FLAG15ec70b52 [2019-09-05 11:15:19,194 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f3969790/8787ee38a81747f0a18c7c2b00a825c8 [2019-09-05 11:15:19,205 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-05 11:15:19,207 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-05 11:15:19,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-05 11:15:19,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-05 11:15:19,213 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-05 11:15:19,214 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.09 11:15:19" (1/1) ... [2019-09-05 11:15:19,217 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e08cfec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:15:19, skipping insertion in model container [2019-09-05 11:15:19,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.09 11:15:19" (1/1) ... [2019-09-05 11:15:19,225 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-05 11:15:19,284 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-05 11:15:19,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-05 11:15:19,700 INFO L188 MainTranslator]: Completed pre-run [2019-09-05 11:15:19,815 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-05 11:15:19,835 INFO L192 MainTranslator]: Completed translation [2019-09-05 11:15:19,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:15:19 WrapperNode [2019-09-05 11:15:19,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-05 11:15:19,837 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-05 11:15:19,837 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-05 11:15:19,837 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-05 11:15:19,847 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:15:19" (1/1) ... [2019-09-05 11:15:19,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:15:19" (1/1) ... [2019-09-05 11:15:19,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:15:19" (1/1) ... [2019-09-05 11:15:19,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:15:19" (1/1) ... [2019-09-05 11:15:19,874 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:15:19" (1/1) ... [2019-09-05 11:15:19,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:15:19" (1/1) ... [2019-09-05 11:15:19,891 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:15:19" (1/1) ... [2019-09-05 11:15:19,896 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-05 11:15:19,897 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-05 11:15:19,897 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-05 11:15:19,897 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-05 11:15:19,898 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:15:19" (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 [2019-09-05 11:15:19,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-05 11:15:19,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-05 11:15:19,957 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-05 11:15:19,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-05 11:15:19,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-05 11:15:19,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-05 11:15:19,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-05 11:15:19,958 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-05 11:15:19,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-05 11:15:19,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-05 11:15:20,807 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-05 11:15:20,808 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-05 11:15:20,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.09 11:15:20 BoogieIcfgContainer [2019-09-05 11:15:20,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-05 11:15:20,810 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-05 11:15:20,810 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-05 11:15:20,810 INFO L275 PluginConnector]: Sifa initialized [2019-09-05 11:15:20,811 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.09 11:15:20" (1/1) ... [2019-09-05 11:15:20,812 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 [2019-09-05 11:15:20,847 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-05 11:15:20,847 INFO L169 IcfgInterpreter]: Building call graph [2019-09-05 11:15:20,873 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-05 11:15:20,890 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-05 11:15:20,892 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-05 11:15:20,977 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 10 for LOIs [2019-09-05 11:15:21,753 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-05 11:15:21,753 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-05 11:15:21,756 INFO L193 IcfgInterpreter]: Reachable states at location mainErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 296#(and (<= |old(~__return_1121~0)| 0) (<= 66 main_~main__y~0) (<= ~__return_1121~0 0) (<= 100 main_~main__x~0) (<= 0 |old(~__return_1121~0)|) (<= 0 main_~__VERIFIER_assert__cond~0) (<= main_~__VERIFIER_assert__cond~0 0) (<= 0 ~__return_1121~0) (<= 0 ~__return_main~0) (<= main_~__tmp_1~0 0) (<= 0 main_~__tmp_1~0) (<= ~__return_main~0 0)) [2019-09-05 11:15:21,771 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-05 11:15:21,772 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-05 11:15:21,775 INFO L168 Benchmark]: Toolchain (without parser) took 2566.81 ms. Allocated memory was 133.7 MB in the beginning and 219.7 MB in the end (delta: 86.0 MB). Free memory was 83.8 MB in the beginning and 70.9 MB in the end (delta: 12.9 MB). Peak memory consumption was 98.9 MB. Max. memory is 7.1 GB. [2019-09-05 11:15:21,776 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 133.7 MB. Free memory was 102.6 MB in the beginning and 102.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-05 11:15:21,778 INFO L168 Benchmark]: CACSL2BoogieTranslator took 627.69 ms. Allocated memory was 133.7 MB in the beginning and 199.8 MB in the end (delta: 66.1 MB). Free memory was 83.6 MB in the beginning and 172.0 MB in the end (delta: -88.3 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB. [2019-09-05 11:15:21,780 INFO L168 Benchmark]: Boogie Preprocessor took 59.56 ms. Allocated memory is still 199.8 MB. Free memory was 172.0 MB in the beginning and 169.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-09-05 11:15:21,781 INFO L168 Benchmark]: RCFGBuilder took 912.75 ms. Allocated memory is still 199.8 MB. Free memory was 169.3 MB in the beginning and 107.2 MB in the end (delta: 62.1 MB). Peak memory consumption was 62.1 MB. Max. memory is 7.1 GB. [2019-09-05 11:15:21,786 INFO L168 Benchmark]: Sifa took 962.17 ms. Allocated memory was 199.8 MB in the beginning and 219.7 MB in the end (delta: 19.9 MB). Free memory was 106.5 MB in the beginning and 70.9 MB in the end (delta: 35.6 MB). Peak memory consumption was 55.5 MB. Max. memory is 7.1 GB. [2019-09-05 11:15:21,798 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 133.7 MB. Free memory was 102.6 MB in the beginning and 102.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 627.69 ms. Allocated memory was 133.7 MB in the beginning and 199.8 MB in the end (delta: 66.1 MB). Free memory was 83.6 MB in the beginning and 172.0 MB in the end (delta: -88.3 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 59.56 ms. Allocated memory is still 199.8 MB. Free memory was 172.0 MB in the beginning and 169.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 912.75 ms. Allocated memory is still 199.8 MB. Free memory was 169.3 MB in the beginning and 107.2 MB in the end (delta: 62.1 MB). Peak memory consumption was 62.1 MB. Max. memory is 7.1 GB. * Sifa took 962.17 ms. Allocated memory was 199.8 MB in the beginning and 219.7 MB in the end (delta: 19.9 MB). Free memory was 106.5 MB in the beginning and 70.9 MB in the end (delta: 35.6 MB). Peak memory consumption was 55.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions 909 OVERALL_TIME[ms], 2 ICFG_INTERPRETER_ENTERED_PROCEDURES, 221 DAG_INTERPRETER_EARLY_EXIT_QUERIES, 1 DAG_INTERPRETER_EARLY_EXITS, 216 TOOLS_POST_APPLICATIONS, 192 TOOLS_POST_TIME[ms], 2 TOOLS_POST_CALL_APPLICATIONS, 19 TOOLS_POST_CALL_TIME[ms], 1 TOOLS_POST_RETURN_APPLICATIONS, 1 TOOLS_POST_RETURN_TIME[ms], 152 TOOLS_QUANTIFIERELIM_TIME[ms], 11 FLUID_QUERY_TIME[ms], 223 FLUID_QUERIES, 0 FLUID_YES_ANSWERS, 74 DOMAIN_JOIN_APPLICATIONS, 105 DOMAIN_JOIN_TIME[ms], 0 DOMAIN_ALPHA_APPLICATIONS, 0 DOMAIN_ALPHA_TIME[ms], 1 DOMAIN_WIDEN_APPLICATIONS, 2 DOMAIN_WIDEN_TIME[ms], 2 DOMAIN_ISSUBSETEQ_APPLICATIONS, 3 DOMAIN_ISSUBSETEQ_TIME[ms], 72 DOMAIN_ISBOTTOM_APPLICATIONS, 135 DOMAIN_ISBOTTOM_TIME[ms], 1 LOOP_SUMMARIZER_APPLICATIONS, 1 LOOP_SUMMARIZER_CACHE_MISSES, 19 LOOP_SUMMARIZER_OVERALL_TIME[ms], 18 LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms], 2 LOOP_SUMMARIZER_FIXPOINT_ITERATIONS, 1 CALL_SUMMARIZER_APPLICATIONS, 0 CALL_SUMMARIZER_CACHE_MISSES, 19 CALL_SUMMARIZER_OVERALL_TIME[ms], 0 CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms], 11 PROCEDURE_GRAPH_BUILDER_TIME[ms], 19 PATH_EXPR_TIME[ms], 10 REGEX_TO_DAG_TIME[ms], 275 DAG_COMPRESSION_TIME[ms], 7328 DAG_COMPRESSION_PROCESSED_NODES, 5236 DAG_COMPRESSION_RETAINED_NODES - UnprovableResult [Line: 439]: 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 296#(and (<= |old(~__return_1121~0)| 0) (<= 66 main_~main__y~0) (<= ~__return_1121~0 0) (<= 100 main_~main__x~0) (<= 0 |old(~__return_1121~0)|) (<= 0 main_~__VERIFIER_assert__cond~0) (<= main_~__VERIFIER_assert__cond~0 0) (<= 0 ~__return_1121~0) (<= 0 ~__return_main~0) (<= main_~__tmp_1~0 0) (<= 0 main_~__tmp_1~0) (<= ~__return_main~0 0)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...