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 SizeLimitFluid --sifa.intern.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_DDA -i ../../../trunk/examples/svcomp/nla-digbench/ps2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 14:06:24,508 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 14:06:24,510 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 14:06:24,522 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 14:06:24,522 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 14:06:24,523 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 14:06:24,524 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 14:06:24,526 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 14:06:24,528 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 14:06:24,529 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 14:06:24,530 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 14:06:24,531 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 14:06:24,531 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 14:06:24,532 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 14:06:24,533 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 14:06:24,534 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 14:06:24,535 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 14:06:24,536 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 14:06:24,541 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 14:06:24,543 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 14:06:24,545 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 14:06:24,546 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 14:06:24,547 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 14:06:24,548 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 14:06:24,550 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 14:06:24,551 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 14:06:24,551 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 14:06:24,553 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 14:06:24,553 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 14:06:24,556 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 14:06:24,556 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 14:06:24,559 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 14:06:24,559 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 14:06:24,560 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 14:06:24,561 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 14:06:24,561 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 14:06:24,562 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 14:06:24,565 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 14:06:24,565 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 14:06:24,566 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 14:06:24,567 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 14:06:24,571 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 14:06:24,595 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 14:06:24,596 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 14:06:24,598 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 14:06:24,599 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 14:06:24,599 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 14:06:24,599 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 14:06:24,599 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 14:06:24,600 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 14:06:24,600 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 14:06:24,600 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 14:06:24,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 14:06:24,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 14:06:24,602 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 14:06:24,602 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 14:06:24,602 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 14:06:24,603 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 14:06:24,603 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 14:06:24,603 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 14:06:24,603 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 14:06:24,603 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 14:06:24,604 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 14:06:24,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 14:06:24,604 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 14:06:24,605 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 14:06:24,605 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 14:06:24,605 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 14:06:24,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 14:06:24,605 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 14:06:24,606 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 -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Intern Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_DDA [2019-09-20 14:06:24,669 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 14:06:24,688 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 14:06:24,692 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 14:06:24,694 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 14:06:24,694 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 14:06:24,695 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/ps2.c [2019-09-20 14:06:24,756 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cef3b93a/73505236e4f846d6a1e5a0424abe327c/FLAG221188f72 [2019-09-20 14:06:25,213 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 14:06:25,213 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/ps2.c [2019-09-20 14:06:25,221 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cef3b93a/73505236e4f846d6a1e5a0424abe327c/FLAG221188f72 [2019-09-20 14:06:25,581 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cef3b93a/73505236e4f846d6a1e5a0424abe327c [2019-09-20 14:06:25,593 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 14:06:25,594 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 14:06:25,595 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 14:06:25,595 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 14:06:25,598 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 14:06:25,599 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:06:25" (1/1) ... [2019-09-20 14:06:25,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f9b7aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:06:25, skipping insertion in model container [2019-09-20 14:06:25,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:06:25" (1/1) ... [2019-09-20 14:06:25,610 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 14:06:25,630 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 14:06:25,902 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 14:06:25,909 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 14:06:25,932 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 14:06:25,950 INFO L192 MainTranslator]: Completed translation [2019-09-20 14:06:25,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:06:25 WrapperNode [2019-09-20 14:06:25,951 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 14:06:25,952 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 14:06:25,952 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 14:06:25,952 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 14:06:26,109 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:06:25" (1/1) ... [2019-09-20 14:06:26,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:06:25" (1/1) ... [2019-09-20 14:06:26,116 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:06:25" (1/1) ... [2019-09-20 14:06:26,117 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:06:25" (1/1) ... [2019-09-20 14:06:26,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:06:25" (1/1) ... [2019-09-20 14:06:26,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:06:25" (1/1) ... [2019-09-20 14:06:26,127 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:06:25" (1/1) ... [2019-09-20 14:06:26,128 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 14:06:26,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 14:06:26,129 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 14:06:26,129 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 14:06:26,130 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:06:25" (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 14:06:26,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 14:06:26,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 14:06:26,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-20 14:06:26,191 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 14:06:26,191 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 14:06:26,192 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 14:06:26,192 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-20 14:06:26,193 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-20 14:06:26,193 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 14:06:26,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 14:06:26,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 14:06:26,387 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 14:06:26,388 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-20 14:06:26,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:06:26 BoogieIcfgContainer [2019-09-20 14:06:26,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 14:06:26,390 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-20 14:06:26,390 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-20 14:06:26,390 INFO L275 PluginConnector]: Sifa initialized [2019-09-20 14:06:26,391 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:06:26" (1/1) ... [2019-09-20 14:06:26,391 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=ExplicitValueDomain ♦ 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=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=SIMPLIFY_DDA ♦ Intern Fluid=SizeLimitFluid [2019-09-20 14:06:26,412 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-20 14:06:26,412 INFO L169 IcfgInterpreter]: Building call graph [2019-09-20 14:06:26,420 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-20 14:06:26,432 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-20 14:06:26,434 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-20 14:06:26,488 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-09-20 14:06:27,033 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2019-09-20 14:06:27,354 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2019-09-20 14:06:27,639 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 44 [2019-09-20 14:06:27,820 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2019-09-20 14:06:27,917 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2019-09-20 14:06:27,930 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-20 14:06:27,931 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-20 14:06:27,933 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 79#(and (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-09-20 14:06:27,946 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-20 14:06:27,946 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-20 14:06:27,948 INFO L168 Benchmark]: Toolchain (without parser) took 2353.53 ms. Allocated memory was 138.9 MB in the beginning and 224.4 MB in the end (delta: 85.5 MB). Free memory was 86.8 MB in the beginning and 159.5 MB in the end (delta: -72.7 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2019-09-20 14:06:27,949 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 138.9 MB. Free memory was 105.0 MB in the beginning and 104.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 14:06:27,950 INFO L168 Benchmark]: CACSL2BoogieTranslator took 357.09 ms. Allocated memory is still 138.9 MB. Free memory was 86.6 MB in the beginning and 77.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-09-20 14:06:27,954 INFO L168 Benchmark]: Boogie Preprocessor took 176.40 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 77.2 MB in the beginning and 178.8 MB in the end (delta: -101.6 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2019-09-20 14:06:27,955 INFO L168 Benchmark]: RCFGBuilder took 260.58 ms. Allocated memory is still 201.3 MB. Free memory was 178.8 MB in the beginning and 166.3 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2019-09-20 14:06:27,956 INFO L168 Benchmark]: Sifa took 1556.35 ms. Allocated memory was 201.3 MB in the beginning and 224.4 MB in the end (delta: 23.1 MB). Free memory was 166.3 MB in the beginning and 159.5 MB in the end (delta: 6.8 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB. [2019-09-20 14:06:27,965 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 138.9 MB. Free memory was 105.0 MB in the beginning and 104.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 357.09 ms. Allocated memory is still 138.9 MB. Free memory was 86.6 MB in the beginning and 77.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 176.40 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 77.2 MB in the beginning and 178.8 MB in the end (delta: -101.6 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 260.58 ms. Allocated memory is still 201.3 MB. Free memory was 178.8 MB in the beginning and 166.3 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * Sifa took 1556.35 ms. Allocated memory was 201.3 MB in the beginning and 224.4 MB in the end (delta: 23.1 MB). Free memory was 166.3 MB in the beginning and 159.5 MB in the end (delta: 6.8 MB). Peak memory consumption was 29.9 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]: 1521, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 36, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 25, TOOLS_POST_TIME[ms]: 47, TOOLS_POST_CALL_APPLICATIONS: 10, TOOLS_POST_CALL_TIME[ms]: 91, TOOLS_POST_RETURN_APPLICATIONS: 7, TOOLS_POST_RETURN_TIME[ms]: 24, TOOLS_QUANTIFIERELIM_APPLICATIONS: 42, TOOLS_QUANTIFIERELIM_TIME[ms]: 135, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 29, FLUID_QUERY_TIME[ms]: 5, FLUID_QUERIES: 41, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 12, DOMAIN_JOIN_TIME[ms]: 697, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 4, DOMAIN_WIDEN_TIME[ms]: 563, DOMAIN_ISSUBSETEQ_APPLICATIONS: 5, DOMAIN_ISSUBSETEQ_TIME[ms]: 11, DOMAIN_ISBOTTOM_APPLICATIONS: 4, DOMAIN_ISBOTTOM_TIME[ms]: 5, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 1336, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 1335, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 5, CALL_SUMMARIZER_APPLICATIONS: 7, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME[ms]: 54, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 53, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 7, PATH_EXPR_TIME[ms]: 3, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 16, DAG_COMPRESSION_PROCESSED_NODES: 69, DAG_COMPRESSION_RETAINED_NODES: 36 - UnprovableResult [Line: 7]: 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 79#(and (= 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...