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-new/gauss_sum.i.p+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-0883e75 [2019-09-05 11:15:24,867 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-05 11:15:24,869 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-05 11:15:24,881 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-05 11:15:24,881 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-05 11:15:24,882 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-05 11:15:24,883 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-05 11:15:24,886 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-05 11:15:24,896 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-05 11:15:24,897 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-05 11:15:24,898 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-05 11:15:24,899 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-05 11:15:24,899 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-05 11:15:24,900 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-05 11:15:24,901 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-05 11:15:24,902 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-05 11:15:24,903 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-05 11:15:24,903 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-05 11:15:24,905 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-05 11:15:24,907 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-05 11:15:24,908 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-05 11:15:24,909 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-05 11:15:24,910 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-05 11:15:24,911 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-05 11:15:24,913 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-05 11:15:24,915 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-05 11:15:24,916 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-05 11:15:24,917 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-05 11:15:24,917 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-05 11:15:24,918 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-05 11:15:24,918 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-05 11:15:24,919 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-05 11:15:24,919 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-05 11:15:24,919 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-05 11:15:24,920 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-05 11:15:24,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-05 11:15:24,922 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 11:15:24,935 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-05 11:15:24,935 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-05 11:15:24,937 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-05 11:15:24,937 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-05 11:15:24,937 INFO L138 SettingsManager]: * Use SBE=true [2019-09-05 11:15:24,937 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-05 11:15:24,937 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-05 11:15:24,938 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-05 11:15:24,938 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-05 11:15:24,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-05 11:15:24,938 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-05 11:15:24,938 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-05 11:15:24,939 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-05 11:15:24,939 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-05 11:15:24,939 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-05 11:15:24,939 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-05 11:15:24,939 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-05 11:15:24,940 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-05 11:15:24,940 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-05 11:15:24,940 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-05 11:15:24,940 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-05 11:15:24,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-05 11:15:24,941 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-05 11:15:24,941 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-05 11:15:24,941 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-05 11:15:24,941 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-05 11:15:24,941 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-05 11:15:24,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-05 11:15:24,942 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 11:15:24,974 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-05 11:15:24,986 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-05 11:15:24,990 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-05 11:15:24,991 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-05 11:15:24,991 INFO L275 PluginConnector]: CDTParser initialized [2019-09-05 11:15:24,992 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/gauss_sum.i.p+lhb-reducer.c [2019-09-05 11:15:25,052 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86c8cec22/9395300cf356493ca41bba774f9f69f5/FLAG215b38a6e [2019-09-05 11:15:25,501 INFO L306 CDTParser]: Found 1 translation units. [2019-09-05 11:15:25,502 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/gauss_sum.i.p+lhb-reducer.c [2019-09-05 11:15:25,516 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86c8cec22/9395300cf356493ca41bba774f9f69f5/FLAG215b38a6e [2019-09-05 11:15:25,867 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86c8cec22/9395300cf356493ca41bba774f9f69f5 [2019-09-05 11:15:25,878 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-05 11:15:25,879 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-05 11:15:25,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-05 11:15:25,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-05 11:15:25,883 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-05 11:15:25,884 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.09 11:15:25" (1/1) ... [2019-09-05 11:15:25,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28c0ed07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:15:25, skipping insertion in model container [2019-09-05 11:15:25,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.09 11:15:25" (1/1) ... [2019-09-05 11:15:25,893 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-05 11:15:25,913 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-05 11:15:26,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-05 11:15:26,087 INFO L188 MainTranslator]: Completed pre-run [2019-09-05 11:15:26,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-05 11:15:26,125 INFO L192 MainTranslator]: Completed translation [2019-09-05 11:15:26,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:15:26 WrapperNode [2019-09-05 11:15:26,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-05 11:15:26,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-05 11:15:26,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-05 11:15:26,127 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-05 11:15:26,141 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:15:26" (1/1) ... [2019-09-05 11:15:26,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:15:26" (1/1) ... [2019-09-05 11:15:26,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:15:26" (1/1) ... [2019-09-05 11:15:26,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:15:26" (1/1) ... [2019-09-05 11:15:26,234 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:15:26" (1/1) ... [2019-09-05 11:15:26,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:15:26" (1/1) ... [2019-09-05 11:15:26,238 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:15:26" (1/1) ... [2019-09-05 11:15:26,239 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-05 11:15:26,240 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-05 11:15:26,240 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-05 11:15:26,240 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-05 11:15:26,241 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:15:26" (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 11:15:26,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-05 11:15:26,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-05 11:15:26,303 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-05 11:15:26,303 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-05 11:15:26,303 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-05 11:15:26,303 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-05 11:15:26,303 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-05 11:15:26,303 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-05 11:15:26,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-05 11:15:26,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-05 11:15:26,546 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-05 11:15:26,547 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-05 11:15:26,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.09 11:15:26 BoogieIcfgContainer [2019-09-05 11:15:26,549 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-05 11:15:26,549 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-05 11:15:26,549 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-05 11:15:26,550 INFO L275 PluginConnector]: Sifa initialized [2019-09-05 11:15:26,551 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.09 11:15:26" (1/1) ... [2019-09-05 11:15:26,552 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 11:15:26,611 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-05 11:15:26,611 INFO L169 IcfgInterpreter]: Building call graph [2019-09-05 11:15:26,633 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-05 11:15:26,644 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-05 11:15:26,646 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-05 11:15:26,714 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 10 for LOIs [2019-09-05 11:15:26,786 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-05 11:15:26,787 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-05 11:15:26,789 INFO L193 IcfgInterpreter]: Reachable states at location mainErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 25#(and (<= 0 |old(~__return_96~0)|) (<= |old(~__return_96~0)| 0) (<= 15 main_~main__sum~0) (<= ~__return_96~0 0) (<= 6 main_~main__i~0) (<= main_~__VERIFIER_assert__cond~0 0) (<= 0 ~__return_main~0) (<= 0 ~__return_96~0) (<= ~__return_main~0 0) (<= main_~main__n~0 1000) (<= 0 main_~__VERIFIER_assert__cond~0) (<= main_~__tmp_1~0 0) (<= 0 main_~__tmp_1~0) (<= 5 main_~main__n~0)) [2019-09-05 11:15:26,802 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-05 11:15:26,802 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-05 11:15:26,805 INFO L168 Benchmark]: Toolchain (without parser) took 924.77 ms. Allocated memory was 129.5 MB in the beginning and 197.7 MB in the end (delta: 68.2 MB). Free memory was 85.8 MB in the beginning and 150.8 MB in the end (delta: -65.0 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. [2019-09-05 11:15:26,805 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 129.5 MB. Free memory is still 103.4 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-05 11:15:26,806 INFO L168 Benchmark]: CACSL2BoogieTranslator took 246.53 ms. Allocated memory is still 129.5 MB. Free memory was 85.4 MB in the beginning and 75.8 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-09-05 11:15:26,808 INFO L168 Benchmark]: Boogie Preprocessor took 113.05 ms. Allocated memory was 129.5 MB in the beginning and 197.7 MB in the end (delta: 68.2 MB). Free memory was 75.8 MB in the beginning and 174.3 MB in the end (delta: -98.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. [2019-09-05 11:15:26,809 INFO L168 Benchmark]: RCFGBuilder took 308.79 ms. Allocated memory is still 197.7 MB. Free memory was 174.3 MB in the beginning and 161.4 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2019-09-05 11:15:26,809 INFO L168 Benchmark]: Sifa took 253.05 ms. Allocated memory is still 197.7 MB. Free memory was 160.4 MB in the beginning and 150.8 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-09-05 11:15:26,813 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 129.5 MB. Free memory is still 103.4 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 246.53 ms. Allocated memory is still 129.5 MB. Free memory was 85.4 MB in the beginning and 75.8 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.05 ms. Allocated memory was 129.5 MB in the beginning and 197.7 MB in the end (delta: 68.2 MB). Free memory was 75.8 MB in the beginning and 174.3 MB in the end (delta: -98.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 308.79 ms. Allocated memory is still 197.7 MB. Free memory was 174.3 MB in the beginning and 161.4 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. * Sifa took 253.05 ms. Allocated memory is still 197.7 MB. Free memory was 160.4 MB in the beginning and 150.8 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions 178 OVERALL_TIME[ms], 2 ICFG_INTERPRETER_ENTERED_PROCEDURES, 18 DAG_INTERPRETER_EARLY_EXIT_QUERIES, 0 DAG_INTERPRETER_EARLY_EXITS, 15 TOOLS_POST_APPLICATIONS, 32 TOOLS_POST_TIME[ms], 2 TOOLS_POST_CALL_APPLICATIONS, 18 TOOLS_POST_CALL_TIME[ms], 1 TOOLS_POST_RETURN_APPLICATIONS, 1 TOOLS_POST_RETURN_TIME[ms], 38 TOOLS_QUANTIFIERELIM_TIME[ms], 5 FLUID_QUERY_TIME[ms], 20 FLUID_QUERIES, 0 FLUID_YES_ANSWERS, 4 DOMAIN_JOIN_APPLICATIONS, 24 DOMAIN_JOIN_TIME[ms], 0 DOMAIN_ALPHA_APPLICATIONS, 0 DOMAIN_ALPHA_TIME[ms], 1 DOMAIN_WIDEN_APPLICATIONS, 5 DOMAIN_WIDEN_TIME[ms], 2 DOMAIN_ISSUBSETEQ_APPLICATIONS, 7 DOMAIN_ISSUBSETEQ_TIME[ms], 0 DOMAIN_ISBOTTOM_APPLICATIONS, 0 DOMAIN_ISBOTTOM_TIME[ms], 1 LOOP_SUMMARIZER_APPLICATIONS, 1 LOOP_SUMMARIZER_CACHE_MISSES, 32 LOOP_SUMMARIZER_OVERALL_TIME[ms], 31 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], 4 PROCEDURE_GRAPH_BUILDER_TIME[ms], 4 PATH_EXPR_TIME[ms], 3 REGEX_TO_DAG_TIME[ms], 17 DAG_COMPRESSION_TIME[ms], 94 DAG_COMPRESSION_PROCESSED_NODES, 36 DAG_COMPRESSION_RETAINED_NODES - UnprovableResult [Line: 64]: 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 25#(and (<= 0 |old(~__return_96~0)|) (<= |old(~__return_96~0)| 0) (<= 15 main_~main__sum~0) (<= ~__return_96~0 0) (<= 6 main_~main__i~0) (<= main_~__VERIFIER_assert__cond~0 0) (<= 0 ~__return_main~0) (<= 0 ~__return_96~0) (<= ~__return_main~0 0) (<= main_~main__n~0 1000) (<= 0 main_~__VERIFIER_assert__cond~0) (<= main_~__tmp_1~0 0) (<= 0 main_~__tmp_1~0) (<= 5 main_~main__n~0)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...