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/loop-invariants/eq1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-19 17:00:56,592 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-19 17:00:56,594 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-19 17:00:56,610 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-19 17:00:56,610 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-19 17:00:56,611 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-19 17:00:56,613 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-19 17:00:56,615 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-19 17:00:56,616 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-19 17:00:56,617 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-19 17:00:56,618 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-19 17:00:56,619 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-19 17:00:56,620 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-19 17:00:56,621 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-19 17:00:56,622 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-19 17:00:56,623 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-19 17:00:56,623 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-19 17:00:56,624 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-19 17:00:56,626 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-19 17:00:56,628 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-19 17:00:56,630 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-19 17:00:56,631 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-19 17:00:56,632 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-19 17:00:56,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-19 17:00:56,636 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-19 17:00:56,639 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-19 17:00:56,640 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-19 17:00:56,641 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-19 17:00:56,642 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-19 17:00:56,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-19 17:00:56,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-19 17:00:56,644 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-19 17:00:56,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-19 17:00:56,644 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-19 17:00:56,645 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-19 17:00:56,646 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-19 17:00:56,647 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 [2019-09-19 17:00:56,663 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-19 17:00:56,663 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-19 17:00:56,664 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-19 17:00:56,665 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-19 17:00:56,665 INFO L138 SettingsManager]: * Use SBE=true [2019-09-19 17:00:56,665 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-19 17:00:56,665 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-19 17:00:56,665 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-19 17:00:56,666 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-19 17:00:56,666 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-19 17:00:56,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-19 17:00:56,667 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-19 17:00:56,667 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-19 17:00:56,667 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-19 17:00:56,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-19 17:00:56,668 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-19 17:00:56,668 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-19 17:00:56,668 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-19 17:00:56,668 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-19 17:00:56,668 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-19 17:00:56,669 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-19 17:00:56,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-19 17:00:56,670 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-19 17:00:56,671 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-19 17:00:56,671 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-19 17:00:56,671 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-19 17:00:56,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-19 17:00:56,671 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-19 17:00:56,672 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 [2019-09-19 17:00:56,722 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-19 17:00:56,735 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-19 17:00:56,738 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-19 17:00:56,740 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-19 17:00:56,740 INFO L275 PluginConnector]: CDTParser initialized [2019-09-19 17:00:56,741 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/eq1.c [2019-09-19 17:00:56,802 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dee1c37fd/4cf04a52420546cf8d7f69bc0d9f6605/FLAG994e265e0 [2019-09-19 17:00:57,264 INFO L306 CDTParser]: Found 1 translation units. [2019-09-19 17:00:57,268 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/eq1.c [2019-09-19 17:00:57,275 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dee1c37fd/4cf04a52420546cf8d7f69bc0d9f6605/FLAG994e265e0 [2019-09-19 17:00:57,647 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dee1c37fd/4cf04a52420546cf8d7f69bc0d9f6605 [2019-09-19 17:00:57,658 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-19 17:00:57,660 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-19 17:00:57,663 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-19 17:00:57,663 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-19 17:00:57,667 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-19 17:00:57,668 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 05:00:57" (1/1) ... [2019-09-19 17:00:57,671 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6688ee5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:00:57, skipping insertion in model container [2019-09-19 17:00:57,671 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 05:00:57" (1/1) ... [2019-09-19 17:00:57,678 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-19 17:00:57,695 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-19 17:00:57,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-19 17:00:57,891 INFO L188 MainTranslator]: Completed pre-run [2019-09-19 17:00:57,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-19 17:00:57,918 INFO L192 MainTranslator]: Completed translation [2019-09-19 17:00:57,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:00:57 WrapperNode [2019-09-19 17:00:57,919 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-19 17:00:57,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-19 17:00:57,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-19 17:00:57,920 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-19 17:00:58,021 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:00:57" (1/1) ... [2019-09-19 17:00:58,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:00:57" (1/1) ... [2019-09-19 17:00:58,027 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:00:57" (1/1) ... [2019-09-19 17:00:58,029 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:00:57" (1/1) ... [2019-09-19 17:00:58,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:00:57" (1/1) ... [2019-09-19 17:00:58,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:00:57" (1/1) ... [2019-09-19 17:00:58,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:00:57" (1/1) ... [2019-09-19 17:00:58,046 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-19 17:00:58,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-19 17:00:58,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-19 17:00:58,047 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-19 17:00:58,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:00:57" (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 [2019-09-19 17:00:58,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-19 17:00:58,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-19 17:00:58,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-19 17:00:58,105 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-19 17:00:58,105 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-19 17:00:58,106 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-19 17:00:58,106 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-19 17:00:58,106 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-19 17:00:58,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-19 17:00:58,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-19 17:00:58,339 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-19 17:00:58,339 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-19 17:00:58,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 05:00:58 BoogieIcfgContainer [2019-09-19 17:00:58,341 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-19 17:00:58,342 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-19 17:00:58,342 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-19 17:00:58,342 INFO L275 PluginConnector]: Sifa initialized [2019-09-19 17:00:58,343 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 05:00:58" (1/1) ... [2019-09-19 17:00:58,344 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 [2019-09-19 17:00:58,374 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-19 17:00:58,375 INFO L169 IcfgInterpreter]: Building call graph [2019-09-19 17:00:58,382 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-19 17:00:58,400 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-19 17:00:58,402 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-19 17:00:58,491 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-09-19 17:00:58,577 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2019-09-19 17:00:58,602 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-19 17:00:58,602 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-19 17:00:58,605 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 31#(= 0 __VERIFIER_assert_~cond) [2019-09-19 17:00:58,625 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-19 17:00:58,625 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-19 17:00:58,629 INFO L168 Benchmark]: Toolchain (without parser) took 967.66 ms. Allocated memory was 134.2 MB in the beginning and 201.3 MB in the end (delta: 67.1 MB). Free memory was 90.2 MB in the beginning and 153.1 MB in the end (delta: -62.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2019-09-19 17:00:58,631 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 134.2 MB. Free memory was 108.4 MB in the beginning and 108.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-19 17:00:58,633 INFO L168 Benchmark]: CACSL2BoogieTranslator took 256.39 ms. Allocated memory is still 134.2 MB. Free memory was 90.0 MB in the beginning and 80.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-09-19 17:00:58,635 INFO L168 Benchmark]: Boogie Preprocessor took 126.83 ms. Allocated memory was 134.2 MB in the beginning and 201.3 MB in the end (delta: 67.1 MB). Free memory was 80.7 MB in the beginning and 177.9 MB in the end (delta: -97.2 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2019-09-19 17:00:58,636 INFO L168 Benchmark]: RCFGBuilder took 294.27 ms. Allocated memory is still 201.3 MB. Free memory was 177.9 MB in the beginning and 163.3 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. [2019-09-19 17:00:58,638 INFO L168 Benchmark]: Sifa took 283.62 ms. Allocated memory is still 201.3 MB. Free memory was 163.3 MB in the beginning and 153.1 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2019-09-19 17:00:58,648 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 134.2 MB. Free memory was 108.4 MB in the beginning and 108.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 256.39 ms. Allocated memory is still 134.2 MB. Free memory was 90.0 MB in the beginning and 80.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.83 ms. Allocated memory was 134.2 MB in the beginning and 201.3 MB in the end (delta: 67.1 MB). Free memory was 80.7 MB in the beginning and 177.9 MB in the end (delta: -97.2 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 294.27 ms. Allocated memory is still 201.3 MB. Free memory was 177.9 MB in the beginning and 163.3 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. * Sifa took 283.62 ms. Allocated memory is still 201.3 MB. Free memory was 163.3 MB in the beginning and 153.1 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 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]: 232, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 11, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 7, TOOLS_POST_TIME[ms]: 41, TOOLS_POST_CALL_APPLICATIONS: 3, TOOLS_POST_CALL_TIME[ms]: 25, TOOLS_POST_RETURN_APPLICATIONS: 1, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 11, TOOLS_QUANTIFIERELIM_TIME[ms]: 56, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 26, FLUID_QUERY_TIME[ms]: 0, FLUID_QUERIES: 12, FLUID_YES_ANSWERS: 12, DOMAIN_JOIN_APPLICATIONS: 3, DOMAIN_JOIN_TIME[ms]: 12, DOMAIN_ALPHA_APPLICATIONS: 12, DOMAIN_ALPHA_TIME[ms]: 48, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME[ms]: 0, DOMAIN_ISSUBSETEQ_APPLICATIONS: 1, DOMAIN_ISSUBSETEQ_TIME[ms]: 2, DOMAIN_ISBOTTOM_APPLICATIONS: 0, DOMAIN_ISBOTTOM_TIME[ms]: 0, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 38, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 38, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 1, CALL_SUMMARIZER_APPLICATIONS: 1, CALL_SUMMARIZER_CACHE_MISSES: 1, CALL_SUMMARIZER_OVERALL_TIME[ms]: 10, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 10, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 12, PATH_EXPR_TIME[ms]: 5, REGEX_TO_DAG_TIME[ms]: 5, DAG_COMPRESSION_TIME[ms]: 27, DAG_COMPRESSION_PROCESSED_NODES: 44, DAG_COMPRESSION_RETAINED_NODES: 28 - UnprovableResult [Line: 5]: 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 31#(= 0 __VERIFIER_assert_~cond). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...