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-acceleration/nested_1-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-06 09:06:39,632 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-06 09:06:39,635 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-06 09:06:39,652 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-06 09:06:39,652 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-06 09:06:39,654 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-06 09:06:39,655 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-06 09:06:39,659 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-06 09:06:39,664 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-06 09:06:39,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-06 09:06:39,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-06 09:06:39,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-06 09:06:39,668 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-06 09:06:39,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-06 09:06:39,671 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-06 09:06:39,673 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-06 09:06:39,674 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-06 09:06:39,675 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-06 09:06:39,681 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-06 09:06:39,686 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-06 09:06:39,687 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-06 09:06:39,690 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-06 09:06:39,694 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-06 09:06:39,695 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-06 09:06:39,698 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-06 09:06:39,698 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-06 09:06:39,698 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-06 09:06:39,699 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-06 09:06:39,700 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-06 09:06:39,701 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-06 09:06:39,701 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-06 09:06:39,702 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-06 09:06:39,702 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-06 09:06:39,703 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-06 09:06:39,704 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-06 09:06:39,704 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-06 09:06:39,705 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-06 09:06:39,705 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-06 09:06:39,705 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-06 09:06:39,706 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-06 09:06:39,707 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-06 09:06:39,708 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 [2019-09-06 09:06:39,731 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-06 09:06:39,731 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-06 09:06:39,734 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-06 09:06:39,734 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-06 09:06:39,734 INFO L138 SettingsManager]: * Use SBE=true [2019-09-06 09:06:39,735 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-06 09:06:39,735 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-06 09:06:39,735 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-06 09:06:39,735 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-06 09:06:39,735 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-06 09:06:39,737 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-06 09:06:39,737 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-06 09:06:39,737 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-06 09:06:39,738 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-06 09:06:39,738 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-06 09:06:39,738 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-06 09:06:39,738 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-06 09:06:39,739 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-06 09:06:39,739 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-06 09:06:39,739 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-06 09:06:39,739 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-06 09:06:39,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-06 09:06:39,740 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-06 09:06:39,740 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-06 09:06:39,741 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-06 09:06:39,741 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-06 09:06:39,741 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-06 09:06:39,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-06 09:06:39,741 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 [2019-09-06 09:06:39,800 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-06 09:06:39,818 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-06 09:06:39,822 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-06 09:06:39,826 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-06 09:06:39,827 INFO L275 PluginConnector]: CDTParser initialized [2019-09-06 09:06:39,828 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/nested_1-2.c [2019-09-06 09:06:39,889 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05ab764b3/1df224ce10184e9690932de44d24b0c0/FLAG983447d0a [2019-09-06 09:06:40,321 INFO L306 CDTParser]: Found 1 translation units. [2019-09-06 09:06:40,321 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/nested_1-2.c [2019-09-06 09:06:40,330 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05ab764b3/1df224ce10184e9690932de44d24b0c0/FLAG983447d0a [2019-09-06 09:06:40,725 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05ab764b3/1df224ce10184e9690932de44d24b0c0 [2019-09-06 09:06:40,738 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-06 09:06:40,740 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-06 09:06:40,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-06 09:06:40,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-06 09:06:40,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-06 09:06:40,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.09 09:06:40" (1/1) ... [2019-09-06 09:06:40,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5748c03b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:06:40, skipping insertion in model container [2019-09-06 09:06:40,749 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.09 09:06:40" (1/1) ... [2019-09-06 09:06:40,756 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-06 09:06:40,771 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-06 09:06:40,923 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-06 09:06:40,927 INFO L188 MainTranslator]: Completed pre-run [2019-09-06 09:06:40,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-06 09:06:40,954 INFO L192 MainTranslator]: Completed translation [2019-09-06 09:06:40,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:06:40 WrapperNode [2019-09-06 09:06:40,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-06 09:06:40,956 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-06 09:06:40,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-06 09:06:40,956 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-06 09:06:41,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:06:40" (1/1) ... [2019-09-06 09:06:41,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:06:40" (1/1) ... [2019-09-06 09:06:41,081 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:06:40" (1/1) ... [2019-09-06 09:06:41,082 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:06:40" (1/1) ... [2019-09-06 09:06:41,086 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:06:40" (1/1) ... [2019-09-06 09:06:41,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:06:40" (1/1) ... [2019-09-06 09:06:41,092 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:06:40" (1/1) ... [2019-09-06 09:06:41,094 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-06 09:06:41,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-06 09:06:41,095 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-06 09:06:41,095 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-06 09:06:41,096 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 09:06:40" (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 [2019-09-06 09:06:41,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-06 09:06:41,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-06 09:06:41,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-06 09:06:41,146 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-06 09:06:41,146 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-06 09:06:41,146 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-06 09:06:41,146 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-06 09:06:41,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-06 09:06:41,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-06 09:06:41,346 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-06 09:06:41,347 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-09-06 09:06:41,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.09 09:06:41 BoogieIcfgContainer [2019-09-06 09:06:41,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-06 09:06:41,349 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-06 09:06:41,349 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-06 09:06:41,349 INFO L275 PluginConnector]: Sifa initialized [2019-09-06 09:06:41,350 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.09 09:06:41" (1/1) ... [2019-09-06 09:06:41,351 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 [2019-09-06 09:06:41,378 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-06 09:06:41,379 INFO L169 IcfgInterpreter]: Building call graph [2019-09-06 09:06:41,387 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-06 09:06:41,398 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-06 09:06:41,400 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-06 09:06:41,451 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-09-06 09:06:41,599 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2019-09-06 09:06:41,608 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-06 09:06:41,609 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-06 09:06:41,611 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 44#(and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond)) [2019-09-06 09:06:41,643 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-06 09:06:41,644 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-06 09:06:41,647 INFO L168 Benchmark]: Toolchain (without parser) took 905.47 ms. Allocated memory was 132.1 MB in the beginning and 200.3 MB in the end (delta: 68.2 MB). Free memory was 86.8 MB in the beginning and 155.2 MB in the end (delta: -68.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-06 09:06:41,648 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 132.1 MB. Free memory was 105.1 MB in the beginning and 104.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-06 09:06:41,649 INFO L168 Benchmark]: CACSL2BoogieTranslator took 214.73 ms. Allocated memory is still 132.1 MB. Free memory was 86.6 MB in the beginning and 77.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-09-06 09:06:41,650 INFO L168 Benchmark]: Boogie Preprocessor took 137.88 ms. Allocated memory was 132.1 MB in the beginning and 200.3 MB in the end (delta: 68.2 MB). Free memory was 77.5 MB in the beginning and 177.2 MB in the end (delta: -99.7 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. [2019-09-06 09:06:41,654 INFO L168 Benchmark]: RCFGBuilder took 253.93 ms. Allocated memory is still 200.3 MB. Free memory was 177.2 MB in the beginning and 165.5 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2019-09-06 09:06:41,655 INFO L168 Benchmark]: Sifa took 295.05 ms. Allocated memory is still 200.3 MB. Free memory was 165.5 MB in the beginning and 155.2 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-09-06 09:06:41,659 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 132.1 MB. Free memory was 105.1 MB in the beginning and 104.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 214.73 ms. Allocated memory is still 132.1 MB. Free memory was 86.6 MB in the beginning and 77.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 137.88 ms. Allocated memory was 132.1 MB in the beginning and 200.3 MB in the end (delta: 68.2 MB). Free memory was 77.5 MB in the beginning and 177.2 MB in the end (delta: -99.7 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 253.93 ms. Allocated memory is still 200.3 MB. Free memory was 177.2 MB in the beginning and 165.5 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. * Sifa took 295.05 ms. Allocated memory is still 200.3 MB. Free memory was 165.5 MB in the beginning and 155.2 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 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]: 233, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 31, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 23, TOOLS_POST_TIME[ms]: 30, TOOLS_POST_CALL_APPLICATIONS: 3, TOOLS_POST_CALL_TIME[ms]: 39, TOOLS_POST_RETURN_APPLICATIONS: 1, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_TIME[ms]: 55, FLUID_QUERY_TIME[ms]: 4, FLUID_QUERIES: 33, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 14, DOMAIN_JOIN_TIME[ms]: 33, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME[ms]: 4, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME[ms]: 20, DOMAIN_ISBOTTOM_APPLICATIONS: 5, DOMAIN_ISBOTTOM_TIME[ms]: 22, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 65, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 65, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 1, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 13, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 4, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 19, DAG_COMPRESSION_PROCESSED_NODES: 76, DAG_COMPRESSION_RETAINED_NODES: 44 - 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 44#(and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...