/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/eca-rers2012/Problem04_label23.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 07:24:31,620 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 07:24:31,622 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 07:24:31,639 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 07:24:31,640 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 07:24:31,642 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 07:24:31,643 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 07:24:31,653 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 07:24:31,658 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 07:24:31,660 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 07:24:31,661 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 07:24:31,663 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 07:24:31,663 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 07:24:31,665 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 07:24:31,666 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 07:24:31,668 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 07:24:31,669 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 07:24:31,670 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 07:24:31,671 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 07:24:31,675 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 07:24:31,679 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 07:24:31,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 07:24:31,685 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 07:24:31,686 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 07:24:31,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 07:24:31,688 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 07:24:31,688 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 07:24:31,689 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 07:24:31,690 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 07:24:31,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 07:24:31,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 07:24:31,693 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 07:24:31,694 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 07:24:31,695 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 07:24:31,696 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 07:24:31,696 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 07:24:31,697 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 07:24:31,697 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 07:24:31,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 07:24:31,698 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 07:24:31,699 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 07:24:31,700 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 07:24:31,721 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 07:24:31,724 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 07:24:31,725 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 07:24:31,725 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 07:24:31,726 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 07:24:31,726 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 07:24:31,726 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 07:24:31,726 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 07:24:31,726 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 07:24:31,727 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 07:24:31,727 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 07:24:31,727 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 07:24:31,727 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 07:24:31,727 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 07:24:31,727 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 07:24:31,728 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 07:24:31,728 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 07:24:31,728 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 07:24:31,728 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 07:24:31,728 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 07:24:31,729 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 07:24:31,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 07:24:31,729 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 07:24:31,729 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 07:24:31,729 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 07:24:31,730 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 07:24:31,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 07:24:31,730 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 07:24:31,730 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 07:24:32,000 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 07:24:32,014 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 07:24:32,017 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 07:24:32,018 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 07:24:32,019 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 07:24:32,019 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label23.c [2019-11-07 07:24:32,087 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/625d30c25/d50e1a5d9ba142539fb899dd3a693619/FLAG9824729e2 [2019-11-07 07:24:32,851 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 07:24:32,854 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label23.c [2019-11-07 07:24:32,886 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/625d30c25/d50e1a5d9ba142539fb899dd3a693619/FLAG9824729e2 [2019-11-07 07:24:32,910 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/625d30c25/d50e1a5d9ba142539fb899dd3a693619 [2019-11-07 07:24:32,920 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 07:24:32,921 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 07:24:32,922 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 07:24:32,923 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 07:24:32,926 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 07:24:32,927 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:24:32" (1/1) ... [2019-11-07 07:24:32,930 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e5ac96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:24:32, skipping insertion in model container [2019-11-07 07:24:32,930 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:24:32" (1/1) ... [2019-11-07 07:24:32,938 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 07:24:33,122 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 07:24:34,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 07:24:34,621 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 07:24:35,204 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 07:24:35,233 INFO L192 MainTranslator]: Completed translation [2019-11-07 07:24:35,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:24:35 WrapperNode [2019-11-07 07:24:35,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 07:24:35,235 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 07:24:35,235 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 07:24:35,235 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 07:24:35,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:24:35" (1/1) ... [2019-11-07 07:24:35,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:24:35" (1/1) ... [2019-11-07 07:24:35,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:24:35" (1/1) ... [2019-11-07 07:24:35,301 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:24:35" (1/1) ... [2019-11-07 07:24:35,407 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:24:35" (1/1) ... [2019-11-07 07:24:35,437 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:24:35" (1/1) ... [2019-11-07 07:24:35,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:24:35" (1/1) ... [2019-11-07 07:24:35,494 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 07:24:35,494 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 07:24:35,495 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 07:24:35,495 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 07:24:35,496 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:24:35" (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 07:24:35,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 07:24:35,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 07:24:35,567 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-11-07 07:24:35,567 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-11-07 07:24:35,567 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2019-11-07 07:24:35,568 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2019-11-07 07:24:35,568 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 07:24:35,569 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-11-07 07:24:35,569 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-11-07 07:24:35,569 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2019-11-07 07:24:35,569 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2019-11-07 07:24:35,569 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 07:24:35,570 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 07:24:35,571 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-07 07:24:35,571 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 07:24:35,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 07:24:35,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 07:24:40,983 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 07:24:40,983 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-07 07:24:40,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:24:40 BoogieIcfgContainer [2019-11-07 07:24:40,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 07:24:40,988 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-11-07 07:24:40,989 INFO L271 PluginConnector]: Initializing Sifa... [2019-11-07 07:24:40,989 INFO L275 PluginConnector]: Sifa initialized [2019-11-07 07:24:40,991 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:24:40" (1/1) ... [2019-11-07 07:24:40,991 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 07:24:41,022 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-11-07 07:24:41,023 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 07:24:41,035 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 07:24:41,042 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 07:24:41,044 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-07 07:24:41,113 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 69 for LOIs [2019-11-07 07:24:45,344 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 50 [2019-11-07 07:24:45,473 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 8937 conjuctions. This might take some time... [2019-11-07 07:24:45,610 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 50 [2019-11-07 07:24:45,748 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 8937 conjuctions. This might take some time... [2019-11-07 07:24:45,837 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 50 [2019-11-07 07:24:45,936 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 8937 conjuctions. This might take some time... [2019-11-07 07:24:46,070 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 11 [2019-11-07 07:24:46,083 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 11 [2019-11-07 07:24:53,119 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2019-11-07 07:24:53,266 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2019-11-07 07:24:53,445 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2019-11-07 07:24:53,644 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2019-11-07 07:24:53,804 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2019-11-07 07:24:53,833 INFO L197 IcfgInterpreter]: Interpreting procedure calculate_output with input of size 76 for LOIs [2019-11-07 07:24:56,362 INFO L197 IcfgInterpreter]: Interpreting procedure calculate_output2 with input of size 76 for LOIs [2019-11-07 07:24:59,519 INFO L197 IcfgInterpreter]: Interpreting procedure calculate_output3 with input of size 105 for LOIs [2019-11-07 07:25:02,070 INFO L197 IcfgInterpreter]: Interpreting procedure calculate_output4 with input of size 109 for LOIs [2019-11-07 07:25:03,118 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 50 [2019-11-07 07:25:03,297 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 8937 conjuctions. This might take some time... [2019-11-07 07:25:03,597 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 50 [2019-11-07 07:25:03,771 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 8937 conjuctions. This might take some time... [2019-11-07 07:25:04,110 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-07 07:25:04,124 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-11-07 07:25:04,124 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-11-07 07:25:04,127 INFO L168 Benchmark]: Toolchain (without parser) took 31204.63 ms. Allocated memory was 139.5 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 87.2 MB in the beginning and 1.0 GB in the end (delta: -917.5 MB). Peak memory consumption was 105.9 MB. Max. memory is 7.1 GB. [2019-11-07 07:25:04,129 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 139.5 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-11-07 07:25:04,130 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2312.06 ms. Allocated memory was 139.5 MB in the beginning and 256.4 MB in the end (delta: 116.9 MB). Free memory was 86.8 MB in the beginning and 175.7 MB in the end (delta: -89.0 MB). Peak memory consumption was 117.0 MB. Max. memory is 7.1 GB. [2019-11-07 07:25:04,131 INFO L168 Benchmark]: Boogie Preprocessor took 259.29 ms. Allocated memory is still 256.4 MB. Free memory was 175.7 MB in the beginning and 145.7 MB in the end (delta: 30.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 7.1 GB. [2019-11-07 07:25:04,135 INFO L168 Benchmark]: RCFGBuilder took 5493.73 ms. Allocated memory was 256.4 MB in the beginning and 368.6 MB in the end (delta: 112.2 MB). Free memory was 145.7 MB in the beginning and 195.1 MB in the end (delta: -49.4 MB). Peak memory consumption was 177.8 MB. Max. memory is 7.1 GB. [2019-11-07 07:25:04,139 INFO L168 Benchmark]: Sifa took 23135.74 ms. Allocated memory was 368.6 MB in the beginning and 1.2 GB in the end (delta: 794.3 MB). Free memory was 195.1 MB in the beginning and 1.0 GB in the end (delta: -809.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-11-07 07:25:04,145 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 139.5 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2312.06 ms. Allocated memory was 139.5 MB in the beginning and 256.4 MB in the end (delta: 116.9 MB). Free memory was 86.8 MB in the beginning and 175.7 MB in the end (delta: -89.0 MB). Peak memory consumption was 117.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 259.29 ms. Allocated memory is still 256.4 MB. Free memory was 175.7 MB in the beginning and 145.7 MB in the end (delta: 30.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5493.73 ms. Allocated memory was 256.4 MB in the beginning and 368.6 MB in the end (delta: 112.2 MB). Free memory was 145.7 MB in the beginning and 195.1 MB in the end (delta: -49.4 MB). Peak memory consumption was 177.8 MB. Max. memory is 7.1 GB. * Sifa took 23135.74 ms. Allocated memory was 368.6 MB in the beginning and 1.2 GB in the end (delta: 794.3 MB). Free memory was 195.1 MB in the beginning and 1.0 GB in the end (delta: -809.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME[ms]: 23088, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 751, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 2281, TOOLS_POST_TIME[ms]: 822, TOOLS_POST_CALL_APPLICATIONS: 11, TOOLS_POST_CALL_TIME[ms]: 53, TOOLS_POST_RETURN_APPLICATIONS: 6, TOOLS_POST_RETURN_TIME[ms]: 28, TOOLS_QUANTIFIERELIM_APPLICATIONS: 2298, TOOLS_QUANTIFIERELIM_TIME[ms]: 561, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 19, FLUID_QUERY_TIME[ms]: 41, FLUID_QUERIES: 2303, FLUID_YES_ANSWERS: 1576, DOMAIN_JOIN_APPLICATIONS: 751, DOMAIN_JOIN_TIME[ms]: 5356, DOMAIN_ALPHA_APPLICATIONS: 1576, DOMAIN_ALPHA_TIME[ms]: 14392, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME[ms]: 163, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME[ms]: 14, DOMAIN_ISBOTTOM_APPLICATIONS: 751, DOMAIN_ISBOTTOM_TIME[ms]: 1021, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 12706, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 12705, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 6, CALL_SUMMARIZER_CACHE_MISSES: 5, CALL_SUMMARIZER_OVERALL_TIME[ms]: 11811, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 11811, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 10, PATH_EXPR_TIME[ms]: 67, REGEX_TO_DAG_TIME[ms]: 14, DAG_COMPRESSION_TIME[ms]: 871, DAG_COMPRESSION_PROCESSED_NODES: 37550, DAG_COMPRESSION_RETAINED_NODES: 1562 - UnprovableResult [Line: 4772]: 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 64048#(and (<= ~b~0 2) (<= 21 ~u~0) (= ~a28~0 16) (<= ~x~0 24) (<= |calculate_output4_#in~input| 6) (<= 6 ~f~0) (<= 1 ~a~0) (= ~a25~0 1) (<= 23 ~w~0) (<= 3 ~c~0) (<= ~c~0 3) (<= ~z~0 26) (<= ~w~0 23) (= 16 ~a4~0) (<= 5 ~e~0) (<= ~a~0 1) (= 1 ~a1~0) (= 1 ~a7~0) (<= 1 ~a25~0) (= ~a14~0 19) (<= ~d~0 4) (<= 1 calculate_output4_~input) (<= calculate_output4_~input 6) (<= 25 ~y~0) (<= ~y~0 25) (<= 22 ~v~0) (= ~a26~0 17) (<= 1 ~a1~0) (<= ~a25~0 1) (<= 2 ~b~0) (<= ~f~0 6) (<= 1 |calculate_output4_#in~input|) (= 1 ~a3~0) (<= 4 ~d~0) (<= ~v~0 22) (<= ~u~0 21) (<= 26 ~z~0) (<= ~a1~0 1) (<= 24 ~x~0) (<= ~e~0 5)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...