/usr/bin/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 CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/loop-acceleration/simple_3-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 10:08:56,533 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 10:08:56,536 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 10:08:56,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 10:08:56,554 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 10:08:56,556 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 10:08:56,557 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 10:08:56,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 10:08:56,571 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 10:08:56,574 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 10:08:56,575 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 10:08:56,577 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 10:08:56,577 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 10:08:56,579 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 10:08:56,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 10:08:56,582 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 10:08:56,583 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 10:08:56,584 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 10:08:56,585 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 10:08:56,589 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 10:08:56,593 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 10:08:56,596 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 10:08:56,598 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 10:08:56,599 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 10:08:56,601 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 10:08:56,601 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 10:08:56,601 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 10:08:56,603 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 10:08:56,603 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 10:08:56,605 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 10:08:56,605 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 10:08:56,607 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 10:08:56,607 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 10:08:56,608 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 10:08:56,610 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 10:08:56,610 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 10:08:56,611 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 10:08:56,611 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 10:08:56,611 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 10:08:56,612 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 10:08:56,612 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 10:08:56,613 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 [2019-11-07 10:08:56,643 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 10:08:56,644 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 10:08:56,645 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 10:08:56,645 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 10:08:56,645 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 10:08:56,645 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 10:08:56,646 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 10:08:56,646 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 10:08:56,646 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 10:08:56,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 10:08:56,646 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 10:08:56,646 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 10:08:56,647 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 10:08:56,647 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 10:08:56,647 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 10:08:56,647 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 10:08:56,647 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 10:08:56,648 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 10:08:56,648 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 10:08:56,648 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 10:08:56,648 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 10:08:56,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 10:08:56,649 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 10:08:56,649 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 10:08:56,649 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 10:08:56,649 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 10:08:56,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 10:08:56,650 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 10:08:56,650 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain 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 -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-11-07 10:08:56,922 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 10:08:56,932 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 10:08:56,940 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 10:08:56,941 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 10:08:56,941 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 10:08:56,942 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/simple_3-1.c [2019-11-07 10:08:57,015 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b35ba36a/24e29b7bca4f4a1f98a65f303e9deee2/FLAG807c520ab [2019-11-07 10:08:57,456 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 10:08:57,457 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/simple_3-1.c [2019-11-07 10:08:57,463 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b35ba36a/24e29b7bca4f4a1f98a65f303e9deee2/FLAG807c520ab [2019-11-07 10:08:57,889 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b35ba36a/24e29b7bca4f4a1f98a65f303e9deee2 [2019-11-07 10:08:57,898 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 10:08:57,899 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 10:08:57,900 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 10:08:57,901 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 10:08:57,904 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 10:08:57,905 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:08:57" (1/1) ... [2019-11-07 10:08:57,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d43b053 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:08:57, skipping insertion in model container [2019-11-07 10:08:57,908 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:08:57" (1/1) ... [2019-11-07 10:08:57,913 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 10:08:57,925 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 10:08:58,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 10:08:58,072 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 10:08:58,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 10:08:58,101 INFO L192 MainTranslator]: Completed translation [2019-11-07 10:08:58,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:08:58 WrapperNode [2019-11-07 10:08:58,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 10:08:58,103 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 10:08:58,103 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 10:08:58,103 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 10:08:58,192 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:08:58" (1/1) ... [2019-11-07 10:08:58,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:08:58" (1/1) ... [2019-11-07 10:08:58,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:08:58" (1/1) ... [2019-11-07 10:08:58,200 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:08:58" (1/1) ... [2019-11-07 10:08:58,203 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:08:58" (1/1) ... [2019-11-07 10:08:58,208 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:08:58" (1/1) ... [2019-11-07 10:08:58,209 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:08:58" (1/1) ... [2019-11-07 10:08:58,210 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 10:08:58,211 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 10:08:58,211 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 10:08:58,211 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 10:08:58,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:08:58" (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 [2019-11-07 10:08:58,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 10:08:58,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 10:08:58,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-07 10:08:58,269 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 10:08:58,269 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 10:08:58,269 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2019-11-07 10:08:58,269 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-07 10:08:58,269 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 10:08:58,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 10:08:58,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 10:08:58,442 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 10:08:58,442 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-07 10:08:58,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:08:58 BoogieIcfgContainer [2019-11-07 10:08:58,444 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 10:08:58,444 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-11-07 10:08:58,444 INFO L271 PluginConnector]: Initializing Sifa... [2019-11-07 10:08:58,445 INFO L275 PluginConnector]: Sifa initialized [2019-11-07 10:08:58,446 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:08:58" (1/1) ... [2019-11-07 10:08:58,446 INFO L79 SifaObserver]: LogSizeWrapperFluid Intern Fluid=SizeLimitFluid ♦ Abstract Domain=CompoundDomain ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ CompoundDomain Intern Domains=ExplicitValueDomain;IntervalDomain ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ SizeLimitFluid Max. Disjunctions=8 ♦ Simplification Technique=SIMPLIFY_QUICK ♦ SizeLimitFluid Max. DAG Size=-1 [2019-11-07 10:08:58,469 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-11-07 10:08:58,469 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 10:08:58,476 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 10:08:58,484 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 10:08:58,485 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-07 10:08:58,529 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-11-07 10:08:58,698 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 40 for LOIs [2019-11-07 10:08:58,703 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-07 10:08:58,721 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-11-07 10:08:58,721 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-11-07 10:08:58,726 INFO L168 Benchmark]: Toolchain (without parser) took 825.81 ms. Allocated memory was 136.3 MB in the beginning and 200.3 MB in the end (delta: 64.0 MB). Free memory was 101.3 MB in the beginning and 155.6 MB in the end (delta: -54.3 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-11-07 10:08:58,727 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 136.3 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-11-07 10:08:58,728 INFO L168 Benchmark]: CACSL2BoogieTranslator took 202.04 ms. Allocated memory is still 136.3 MB. Free memory was 101.1 MB in the beginning and 91.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-11-07 10:08:58,729 INFO L168 Benchmark]: Boogie Preprocessor took 107.54 ms. Allocated memory was 136.3 MB in the beginning and 200.3 MB in the end (delta: 64.0 MB). Free memory was 91.8 MB in the beginning and 178.5 MB in the end (delta: -86.7 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2019-11-07 10:08:58,730 INFO L168 Benchmark]: RCFGBuilder took 233.18 ms. Allocated memory is still 200.3 MB. Free memory was 178.5 MB in the beginning and 167.7 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2019-11-07 10:08:58,731 INFO L168 Benchmark]: Sifa took 277.17 ms. Allocated memory is still 200.3 MB. Free memory was 167.7 MB in the beginning and 155.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. [2019-11-07 10:08:58,735 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 136.3 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 202.04 ms. Allocated memory is still 136.3 MB. Free memory was 101.1 MB in the beginning and 91.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.54 ms. Allocated memory was 136.3 MB in the beginning and 200.3 MB in the end (delta: 64.0 MB). Free memory was 91.8 MB in the beginning and 178.5 MB in the end (delta: -86.7 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 233.18 ms. Allocated memory is still 200.3 MB. Free memory was 178.5 MB in the beginning and 167.7 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * Sifa took 277.17 ms. Allocated memory is still 200.3 MB. Free memory was 167.7 MB in the beginning and 155.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 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]: 235, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 0, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 9, TOOLS_POST_TIME[ms]: 24, TOOLS_POST_CALL_APPLICATIONS: 3, TOOLS_POST_CALL_TIME[ms]: 44, TOOLS_POST_RETURN_APPLICATIONS: 1, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 13, TOOLS_QUANTIFIERELIM_TIME[ms]: 56, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 34, FLUID_QUERY_TIME[ms]: 4, FLUID_QUERIES: 21, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME[ms]: 0, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME[ms]: 89, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME[ms]: 14, DOMAIN_ISBOTTOM_APPLICATIONS: 0, DOMAIN_ISBOTTOM_TIME[ms]: 0, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 116, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 116, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, CALL_SUMMARIZER_APPLICATIONS: 1, CALL_SUMMARIZER_CACHE_MISSES: 1, CALL_SUMMARIZER_OVERALL_TIME[ms]: 3, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 3, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 6, PATH_EXPR_TIME[ms]: 4, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 11, DAG_COMPRESSION_PROCESSED_NODES: 43, DAG_COMPRESSION_RETAINED_NODES: 29 - UnprovableResult [Line: 6]: 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 27#(and (exists ((v_main_~x~0_BEFORE_CALL_1 Int) (v_main_~N~0_BEFORE_CALL_1 Int)) (or (and (<= 0 v_main_~x~0_BEFORE_CALL_1) (= (mod v_main_~x~0_BEFORE_CALL_1 2) 0) (= |__VERIFIER_assert_#in~cond| (+ (mod v_main_~x~0_BEFORE_CALL_1 2) (- 4294967296))) (not (< (mod v_main_~x~0_BEFORE_CALL_1 4294967296) (mod v_main_~N~0_BEFORE_CALL_1 65536))) (not (<= (mod v_main_~x~0_BEFORE_CALL_1 2) 2147483647))) (and (= |__VERIFIER_assert_#in~cond| (+ (mod (+ (mod v_main_~x~0_BEFORE_CALL_1 2) 4294967294) 4294967296) (- 4294967296))) (<= 0 v_main_~x~0_BEFORE_CALL_1) (not (<= (mod (+ (mod v_main_~x~0_BEFORE_CALL_1 2) 4294967294) 4294967296) 2147483647)) (not (= (mod v_main_~x~0_BEFORE_CALL_1 2) 0)) (< (mod v_main_~x~0_BEFORE_CALL_1 4294967296) 0) (not (< (mod v_main_~x~0_BEFORE_CALL_1 4294967296) (mod v_main_~N~0_BEFORE_CALL_1 65536)))) (and (<= 0 v_main_~x~0_BEFORE_CALL_1) (not (< (mod v_main_~x~0_BEFORE_CALL_1 4294967296) 0)) (= |__VERIFIER_assert_#in~cond| (+ (mod v_main_~x~0_BEFORE_CALL_1 2) (- 4294967296))) (not (< (mod v_main_~x~0_BEFORE_CALL_1 4294967296) (mod v_main_~N~0_BEFORE_CALL_1 65536))) (not (<= (mod v_main_~x~0_BEFORE_CALL_1 2) 2147483647))) (and (<= 0 v_main_~x~0_BEFORE_CALL_1) (= (mod v_main_~x~0_BEFORE_CALL_1 2) |__VERIFIER_assert_#in~cond|) (= (mod v_main_~x~0_BEFORE_CALL_1 2) 0) (not (< (mod v_main_~x~0_BEFORE_CALL_1 4294967296) (mod v_main_~N~0_BEFORE_CALL_1 65536))) (<= (mod v_main_~x~0_BEFORE_CALL_1 2) 2147483647)) (and (<= 0 v_main_~x~0_BEFORE_CALL_1) (= (mod v_main_~x~0_BEFORE_CALL_1 2) |__VERIFIER_assert_#in~cond|) (not (< (mod v_main_~x~0_BEFORE_CALL_1 4294967296) 0)) (not (< (mod v_main_~x~0_BEFORE_CALL_1 4294967296) (mod v_main_~N~0_BEFORE_CALL_1 65536))) (<= (mod v_main_~x~0_BEFORE_CALL_1 2) 2147483647)) (and (<= 0 v_main_~x~0_BEFORE_CALL_1) (= |__VERIFIER_assert_#in~cond| (mod (+ (mod v_main_~x~0_BEFORE_CALL_1 2) 4294967294) 4294967296)) (not (= (mod v_main_~x~0_BEFORE_CALL_1 2) 0)) (< (mod v_main_~x~0_BEFORE_CALL_1 4294967296) 0) (not (< (mod v_main_~x~0_BEFORE_CALL_1 4294967296) (mod v_main_~N~0_BEFORE_CALL_1 65536))) (<= (mod (+ (mod v_main_~x~0_BEFORE_CALL_1 2) 4294967294) 4294967296) 2147483647)))) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...