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/nla-digbench/egcd2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-0883e75 [2019-09-05 11:15:50,111 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-05 11:15:50,114 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-05 11:15:50,126 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-05 11:15:50,126 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-05 11:15:50,127 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-05 11:15:50,129 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-05 11:15:50,131 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-05 11:15:50,132 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-05 11:15:50,133 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-05 11:15:50,134 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-05 11:15:50,136 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-05 11:15:50,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-05 11:15:50,137 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-05 11:15:50,138 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-05 11:15:50,139 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-05 11:15:50,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-05 11:15:50,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-05 11:15:50,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-05 11:15:50,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-05 11:15:50,157 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-05 11:15:50,158 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-05 11:15:50,159 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-05 11:15:50,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-05 11:15:50,162 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-05 11:15:50,162 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-05 11:15:50,162 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-05 11:15:50,163 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-05 11:15:50,163 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-05 11:15:50,164 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-05 11:15:50,164 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-05 11:15:50,165 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-05 11:15:50,166 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-05 11:15:50,166 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-05 11:15:50,167 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-05 11:15:50,168 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-05 11:15:50,168 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-05 11:15:50,169 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-05 11:15:50,169 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-05 11:15:50,170 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-05 11:15:50,170 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-05 11:15:50,171 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 [2019-09-05 11:15:50,188 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-05 11:15:50,189 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-05 11:15:50,191 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-05 11:15:50,191 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-05 11:15:50,191 INFO L138 SettingsManager]: * Use SBE=true [2019-09-05 11:15:50,191 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-05 11:15:50,191 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-05 11:15:50,192 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-05 11:15:50,192 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-05 11:15:50,192 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-05 11:15:50,192 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-05 11:15:50,192 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-05 11:15:50,193 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-05 11:15:50,193 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-05 11:15:50,193 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-05 11:15:50,193 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-05 11:15:50,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-05 11:15:50,194 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-05 11:15:50,194 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-05 11:15:50,194 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-05 11:15:50,194 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-05 11:15:50,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-05 11:15:50,195 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-05 11:15:50,195 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-05 11:15:50,195 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-05 11:15:50,195 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-05 11:15:50,196 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-05 11:15:50,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-05 11:15:50,196 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 [2019-09-05 11:15:50,228 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-05 11:15:50,243 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-05 11:15:50,248 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-05 11:15:50,249 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-05 11:15:50,250 INFO L275 PluginConnector]: CDTParser initialized [2019-09-05 11:15:50,251 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/egcd2.c [2019-09-05 11:15:50,325 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9439c1c59/03242c6471de405d827dd95c0cd8cbc7/FLAGc4bcf1c24 [2019-09-05 11:15:50,772 INFO L306 CDTParser]: Found 1 translation units. [2019-09-05 11:15:50,773 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/egcd2.c [2019-09-05 11:15:50,780 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9439c1c59/03242c6471de405d827dd95c0cd8cbc7/FLAGc4bcf1c24 [2019-09-05 11:15:51,138 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9439c1c59/03242c6471de405d827dd95c0cd8cbc7 [2019-09-05 11:15:51,148 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-05 11:15:51,150 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-05 11:15:51,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-05 11:15:51,151 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-05 11:15:51,154 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-05 11:15:51,155 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.09 11:15:51" (1/1) ... [2019-09-05 11:15:51,158 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@465b7da2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:15:51, skipping insertion in model container [2019-09-05 11:15:51,159 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.09 11:15:51" (1/1) ... [2019-09-05 11:15:51,166 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-05 11:15:51,192 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-05 11:15:51,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-05 11:15:51,408 INFO L188 MainTranslator]: Completed pre-run [2019-09-05 11:15:51,450 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-05 11:15:51,465 INFO L192 MainTranslator]: Completed translation [2019-09-05 11:15:51,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:15:51 WrapperNode [2019-09-05 11:15:51,466 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-05 11:15:51,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-05 11:15:51,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-05 11:15:51,467 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-05 11:15:51,574 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:15:51" (1/1) ... [2019-09-05 11:15:51,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:15:51" (1/1) ... [2019-09-05 11:15:51,585 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:15:51" (1/1) ... [2019-09-05 11:15:51,585 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:15:51" (1/1) ... [2019-09-05 11:15:51,590 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:15:51" (1/1) ... [2019-09-05 11:15:51,596 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:15:51" (1/1) ... [2019-09-05 11:15:51,597 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:15:51" (1/1) ... [2019-09-05 11:15:51,599 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-05 11:15:51,599 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-05 11:15:51,599 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-05 11:15:51,600 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-05 11:15:51,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 11:15:51" (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 [2019-09-05 11:15:51,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-05 11:15:51,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-05 11:15:51,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-05 11:15:51,648 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-05 11:15:51,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-05 11:15:51,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-05 11:15:51,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-05 11:15:51,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-05 11:15:51,648 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-05 11:15:51,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-05 11:15:51,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-05 11:15:51,873 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-05 11:15:51,873 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-09-05 11:15:51,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.09 11:15:51 BoogieIcfgContainer [2019-09-05 11:15:51,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-05 11:15:51,875 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-05 11:15:51,875 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-05 11:15:51,875 INFO L275 PluginConnector]: Sifa initialized [2019-09-05 11:15:51,877 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.09 11:15:51" (1/1) ... [2019-09-05 11:15:51,877 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 [2019-09-05 11:15:51,935 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-05 11:15:51,935 INFO L169 IcfgInterpreter]: Building call graph [2019-09-05 11:15:51,951 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-05 11:15:51,964 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-05 11:15:51,965 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-05 11:15:52,028 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-09-05 11:15:53,118 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2019-09-05 11:15:53,119 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-05 11:15:53,119 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-05 11:15:53,124 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 276#(and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond)) [2019-09-05 11:15:53,139 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-05 11:15:53,139 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-05 11:15:53,143 INFO L168 Benchmark]: Toolchain (without parser) took 1991.35 ms. Allocated memory was 132.1 MB in the beginning and 222.3 MB in the end (delta: 90.2 MB). Free memory was 88.4 MB in the beginning and 158.4 MB in the end (delta: -70.0 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-09-05 11:15:53,144 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 132.1 MB. Free memory was 106.4 MB in the beginning and 106.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-05 11:15:53,146 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.22 ms. Allocated memory is still 132.1 MB. Free memory was 88.2 MB in the beginning and 78.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-09-05 11:15:53,148 INFO L168 Benchmark]: Boogie Preprocessor took 132.58 ms. Allocated memory was 132.1 MB in the beginning and 199.2 MB in the end (delta: 67.1 MB). Free memory was 78.2 MB in the beginning and 175.7 MB in the end (delta: -97.5 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. [2019-09-05 11:15:53,148 INFO L168 Benchmark]: RCFGBuilder took 275.48 ms. Allocated memory is still 199.2 MB. Free memory was 175.7 MB in the beginning and 161.9 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2019-09-05 11:15:53,154 INFO L168 Benchmark]: Sifa took 1264.10 ms. Allocated memory was 199.2 MB in the beginning and 222.3 MB in the end (delta: 23.1 MB). Free memory was 161.9 MB in the beginning and 158.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2019-09-05 11:15:53,166 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 132.1 MB. Free memory was 106.4 MB in the beginning and 106.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 315.22 ms. Allocated memory is still 132.1 MB. Free memory was 88.2 MB in the beginning and 78.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 132.58 ms. Allocated memory was 132.1 MB in the beginning and 199.2 MB in the end (delta: 67.1 MB). Free memory was 78.2 MB in the beginning and 175.7 MB in the end (delta: -97.5 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 275.48 ms. Allocated memory is still 199.2 MB. Free memory was 175.7 MB in the beginning and 161.9 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * Sifa took 1264.10 ms. Allocated memory was 199.2 MB in the beginning and 222.3 MB in the end (delta: 23.1 MB). Free memory was 161.9 MB in the beginning and 158.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions 1190 OVERALL_TIME[ms], 3 ICFG_INTERPRETER_ENTERED_PROCEDURES, 137 DAG_INTERPRETER_EARLY_EXIT_QUERIES, 8 DAG_INTERPRETER_EARLY_EXITS, 68 TOOLS_POST_APPLICATIONS, 65 TOOLS_POST_TIME[ms], 60 TOOLS_POST_CALL_APPLICATIONS, 640 TOOLS_POST_CALL_TIME[ms], 53 TOOLS_POST_RETURN_APPLICATIONS, 138 TOOLS_POST_RETURN_TIME[ms], 751 TOOLS_QUANTIFIERELIM_TIME[ms], 9 FLUID_QUERY_TIME[ms], 147 FLUID_QUERIES, 0 FLUID_YES_ANSWERS, 38 DOMAIN_JOIN_APPLICATIONS, 36 DOMAIN_JOIN_TIME[ms], 0 DOMAIN_ALPHA_APPLICATIONS, 0 DOMAIN_ALPHA_TIME[ms], 5 DOMAIN_WIDEN_APPLICATIONS, 7 DOMAIN_WIDEN_TIME[ms], 104 DOMAIN_ISSUBSETEQ_APPLICATIONS, 126 DOMAIN_ISSUBSETEQ_TIME[ms], 32 DOMAIN_ISBOTTOM_APPLICATIONS, 31 DOMAIN_ISBOTTOM_TIME[ms], 6 LOOP_SUMMARIZER_APPLICATIONS, 5 LOOP_SUMMARIZER_CACHE_MISSES, 834 LOOP_SUMMARIZER_OVERALL_TIME[ms], 833 LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms], 10 LOOP_SUMMARIZER_FIXPOINT_ITERATIONS, 53 CALL_SUMMARIZER_APPLICATIONS, 0 CALL_SUMMARIZER_CACHE_MISSES, 144 CALL_SUMMARIZER_OVERALL_TIME[ms], 0 CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms], 5 PROCEDURE_GRAPH_BUILDER_TIME[ms], 4 PATH_EXPR_TIME[ms], 4 REGEX_TO_DAG_TIME[ms], 37 DAG_COMPRESSION_TIME[ms], 250 DAG_COMPRESSION_PROCESSED_NODES, 98 DAG_COMPRESSION_RETAINED_NODES - UnprovableResult [Line: 8]: 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 276#(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...