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 ExplicitValueDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid AlwaysFluid --sifa.intern.fluid AlwaysFluid --sifa.simplification.technique SIMPLIFY_DDA -i ../../../trunk/examples/svcomp/ldv-regression/test09.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 22:26:48,250 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 22:26:48,252 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 22:26:48,263 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 22:26:48,263 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 22:26:48,264 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 22:26:48,266 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 22:26:48,267 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 22:26:48,269 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 22:26:48,270 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 22:26:48,271 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 22:26:48,272 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 22:26:48,272 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 22:26:48,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 22:26:48,274 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 22:26:48,276 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 22:26:48,276 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 22:26:48,277 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 22:26:48,279 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 22:26:48,282 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 22:26:48,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 22:26:48,285 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 22:26:48,286 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 22:26:48,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 22:26:48,289 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-20 22:26:48,297 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 22:26:48,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 22:26:48,299 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 22:26:48,299 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 [2019-09-20 22:26:48,314 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 22:26:48,314 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 22:26:48,315 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 22:26:48,316 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 22:26:48,316 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 22:26:48,316 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 22:26:48,316 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 22:26:48,316 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 22:26:48,317 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 22:26:48,317 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 22:26:48,317 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 22:26:48,317 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 22:26:48,317 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 22:26:48,318 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 22:26:48,318 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 22:26:48,318 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 22:26:48,318 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 22:26:48,318 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 22:26:48,319 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 22:26:48,319 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 22:26:48,319 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 22:26:48,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 22:26:48,319 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 22:26:48,320 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 22:26:48,320 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 22:26:48,320 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 22:26:48,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 22:26:48,320 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 22:26:48,321 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> ExplicitValueDomain 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 -> AlwaysFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Intern Fluid -> AlwaysFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_DDA [2019-09-20 22:26:48,352 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 22:26:48,365 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 22:26:48,370 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 22:26:48,372 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 22:26:48,372 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 22:26:48,373 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test09.c [2019-09-20 22:26:48,450 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ee209fca/3fa4f761cc5943b2877c281dc9f9465e/FLAG3a6b7b611 [2019-09-20 22:26:48,864 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 22:26:48,865 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test09.c [2019-09-20 22:26:48,872 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ee209fca/3fa4f761cc5943b2877c281dc9f9465e/FLAG3a6b7b611 [2019-09-20 22:26:49,292 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ee209fca/3fa4f761cc5943b2877c281dc9f9465e [2019-09-20 22:26:49,301 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 22:26:49,303 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 22:26:49,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 22:26:49,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 22:26:49,308 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 22:26:49,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 10:26:49" (1/1) ... [2019-09-20 22:26:49,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7609cfe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:26:49, skipping insertion in model container [2019-09-20 22:26:49,312 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 10:26:49" (1/1) ... [2019-09-20 22:26:49,320 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 22:26:49,339 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 22:26:49,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 22:26:49,539 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 22:26:49,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 22:26:49,568 INFO L192 MainTranslator]: Completed translation [2019-09-20 22:26:49,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:26:49 WrapperNode [2019-09-20 22:26:49,569 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 22:26:49,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 22:26:49,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 22:26:49,570 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 22:26:49,679 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:26:49" (1/1) ... [2019-09-20 22:26:49,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:26:49" (1/1) ... [2019-09-20 22:26:49,685 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:26:49" (1/1) ... [2019-09-20 22:26:49,686 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:26:49" (1/1) ... [2019-09-20 22:26:49,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:26:49" (1/1) ... [2019-09-20 22:26:49,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:26:49" (1/1) ... [2019-09-20 22:26:49,699 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:26:49" (1/1) ... [2019-09-20 22:26:49,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 22:26:49,702 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 22:26:49,702 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 22:26:49,703 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 22:26:49,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:26:49" (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 [2019-09-20 22:26:49,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 22:26:49,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 22:26:49,756 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-09-20 22:26:49,756 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 22:26:49,756 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 22:26:49,756 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-09-20 22:26:49,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 22:26:49,756 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 22:26:49,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 22:26:49,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 22:26:49,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 22:26:49,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 22:26:49,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 22:26:49,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 22:26:50,044 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 22:26:50,045 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-20 22:26:50,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 10:26:50 BoogieIcfgContainer [2019-09-20 22:26:50,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 22:26:50,047 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-20 22:26:50,048 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-20 22:26:50,048 INFO L275 PluginConnector]: Sifa initialized [2019-09-20 22:26:50,049 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 10:26:50" (1/1) ... [2019-09-20 22:26:50,050 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=ExplicitValueDomain ♦ Abstract when formula's dag size exceeds (negative numbers disable this limit)=-1 ♦ Fluid=AlwaysFluid ♦ 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=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=SIMPLIFY_DDA ♦ Intern Fluid=AlwaysFluid [2019-09-20 22:26:50,091 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-20 22:26:50,091 INFO L169 IcfgInterpreter]: Building call graph [2019-09-20 22:26:50,098 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-20 22:26:50,107 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-20 22:26:50,108 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-20 22:26:50,357 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2019-09-20 22:26:50,534 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2019-09-20 22:26:50,679 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 16 for LOIs [2019-09-20 22:26:50,923 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-20 22:26:50,924 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-20 22:26:50,926 INFO L193 IcfgInterpreter]: Reachable states at location mainErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 28#true [2019-09-20 22:26:50,941 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-20 22:26:50,941 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-20 22:26:50,945 INFO L168 Benchmark]: Toolchain (without parser) took 1640.43 ms. Allocated memory was 136.8 MB in the beginning and 235.4 MB in the end (delta: 98.6 MB). Free memory was 92.9 MB in the beginning and 205.9 MB in the end (delta: -113.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 22:26:50,947 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 136.8 MB. Free memory was 111.3 MB in the beginning and 111.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 22:26:50,948 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.92 ms. Allocated memory is still 136.8 MB. Free memory was 92.5 MB in the beginning and 82.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-09-20 22:26:50,955 INFO L168 Benchmark]: Boogie Preprocessor took 131.76 ms. Allocated memory was 136.8 MB in the beginning and 203.4 MB in the end (delta: 66.6 MB). Free memory was 82.8 MB in the beginning and 179.5 MB in the end (delta: -96.6 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. [2019-09-20 22:26:50,957 INFO L168 Benchmark]: RCFGBuilder took 344.81 ms. Allocated memory is still 203.4 MB. Free memory was 179.5 MB in the beginning and 162.1 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 7.1 GB. [2019-09-20 22:26:50,958 INFO L168 Benchmark]: Sifa took 894.06 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 162.1 MB in the beginning and 207.3 MB in the end (delta: -45.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 22:26:50,967 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 136.8 MB. Free memory was 111.3 MB in the beginning and 111.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 265.92 ms. Allocated memory is still 136.8 MB. Free memory was 92.5 MB in the beginning and 82.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 131.76 ms. Allocated memory was 136.8 MB in the beginning and 203.4 MB in the end (delta: 66.6 MB). Free memory was 82.8 MB in the beginning and 179.5 MB in the end (delta: -96.6 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 344.81 ms. Allocated memory is still 203.4 MB. Free memory was 179.5 MB in the beginning and 162.1 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 7.1 GB. * Sifa took 894.06 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 162.1 MB in the beginning and 207.3 MB in the end (delta: -45.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME[ms]: 835, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 9, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 6, TOOLS_POST_TIME[ms]: 568, TOOLS_POST_CALL_APPLICATIONS: 3, TOOLS_POST_CALL_TIME[ms]: 25, TOOLS_POST_RETURN_APPLICATIONS: 2, TOOLS_POST_RETURN_TIME[ms]: 13, TOOLS_QUANTIFIERELIM_APPLICATIONS: 11, TOOLS_QUANTIFIERELIM_TIME[ms]: 590, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 368, FLUID_QUERY_TIME[ms]: 0, FLUID_QUERIES: 9, FLUID_YES_ANSWERS: 9, DOMAIN_JOIN_APPLICATIONS: 3, DOMAIN_JOIN_TIME[ms]: 141, DOMAIN_ALPHA_APPLICATIONS: 9, DOMAIN_ALPHA_TIME[ms]: 27, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME[ms]: 0, DOMAIN_ISSUBSETEQ_APPLICATIONS: 0, DOMAIN_ISSUBSETEQ_TIME[ms]: 0, DOMAIN_ISBOTTOM_APPLICATIONS: 0, DOMAIN_ISBOTTOM_TIME[ms]: 0, LOOP_SUMMARIZER_APPLICATIONS: 0, LOOP_SUMMARIZER_CACHE_MISSES: 0, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 0, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 0, CALL_SUMMARIZER_APPLICATIONS: 2, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME[ms]: 524, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 523, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 3, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 12, DAG_COMPRESSION_PROCESSED_NODES: 37, DAG_COMPRESSION_RETAINED_NODES: 22 - UnprovableResult [Line: 37]: 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 28#true. Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...