/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/SifaC.xml --sifa.abstract.domain IntervalDomain -i ../sv-benchmarks/c/eca-rers2012/Problem16_label57.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 05:30:55,318 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 05:30:55,320 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 05:30:55,346 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 05:30:55,346 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 05:30:55,347 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 05:30:55,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 05:30:55,352 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 05:30:55,355 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 05:30:55,358 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 05:30:55,359 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 05:30:55,361 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 05:30:55,361 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 05:30:55,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 05:30:55,364 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 05:30:55,366 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 05:30:55,366 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 05:30:55,367 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 05:30:55,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 05:30:55,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 05:30:55,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 05:30:55,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 05:30:55,374 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 05:30:55,375 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 05:30:55,381 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-03-31 05:30:55,383 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 05:30:55,384 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 05:30:55,385 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 05:30:55,385 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 05:30:55,386 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 05:30:55,386 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 05:30:55,386 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 05:30:55,386 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 05:30:55,386 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 05:30:55,387 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 05:30:55,387 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 05:30:55,388 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-03-31 05:30:55,412 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 05:30:55,412 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 05:30:55,413 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 05:30:55,413 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 05:30:55,413 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 05:30:55,414 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 05:30:55,414 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 05:30:55,414 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 05:30:55,414 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 05:30:55,414 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 05:30:55,414 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 05:30:55,415 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 05:30:55,415 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 05:30:55,415 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 05:30:55,415 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 05:30:55,415 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 05:30:55,415 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 05:30:55,415 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 05:30:55,415 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 05:30:55,416 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 05:30:55,416 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 05:30:55,416 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 05:30:55,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 05:30:55,416 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 05:30:55,416 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 05:30:55,416 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 05:30:55,416 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 05:30:55,416 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 05:30:55,416 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 05:30:55,416 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 05:30:55,417 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 05:30:55,417 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 05:30:55,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 05:30:55,417 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 05:30:55,417 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 05:30:55,417 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 05:30:55,417 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 05:30:55,417 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 05:30:55,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 05:30:55,417 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 05:30:55,418 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 05:30:55,418 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 05:30:55,597 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 05:30:55,612 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 05:30:55,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 05:30:55,615 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 05:30:55,615 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 05:30:55,616 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem16_label57.c [2023-03-31 05:30:56,494 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 05:30:56,809 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 05:30:56,809 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label57.c [2023-03-31 05:30:56,821 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9f558d4f/edb6bce7c871486994208fe454ed2459/FLAG7f5dfa83c [2023-03-31 05:30:56,834 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9f558d4f/edb6bce7c871486994208fe454ed2459 [2023-03-31 05:30:56,836 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 05:30:56,837 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 05:30:56,840 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 05:30:56,840 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 05:30:56,842 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 05:30:56,842 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 05:30:56" (1/1) ... [2023-03-31 05:30:56,843 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f108643 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 05:30:56, skipping insertion in model container [2023-03-31 05:30:56,844 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 05:30:56" (1/1) ... [2023-03-31 05:30:56,848 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 05:30:56,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 05:30:57,056 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label57.c[4337,4350] [2023-03-31 05:30:57,292 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 05:30:57,306 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 05:30:57,325 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label57.c[4337,4350] [2023-03-31 05:30:57,451 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 05:30:57,463 INFO L208 MainTranslator]: Completed translation [2023-03-31 05:30:57,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 05:30:57 WrapperNode [2023-03-31 05:30:57,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 05:30:57,465 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 05:30:57,465 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 05:30:57,465 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 05:30:57,473 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 05:30:57" (1/1) ... [2023-03-31 05:30:57,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 05:30:57" (1/1) ... [2023-03-31 05:30:57,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 05:30:57" (1/1) ... [2023-03-31 05:30:57,500 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 05:30:57" (1/1) ... [2023-03-31 05:30:57,560 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 05:30:57" (1/1) ... [2023-03-31 05:30:57,576 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 05:30:57" (1/1) ... [2023-03-31 05:30:57,591 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 05:30:57" (1/1) ... [2023-03-31 05:30:57,599 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 05:30:57" (1/1) ... [2023-03-31 05:30:57,609 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 05:30:57,610 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 05:30:57,610 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 05:30:57,610 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 05:30:57,611 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 05:30:57" (1/1) ... [2023-03-31 05:30:57,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 05:30:57,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 05:30:57,634 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-03-31 05:30:57,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-03-31 05:30:57,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 05:30:57,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 05:30:57,664 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 05:30:57,664 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2023-03-31 05:30:57,664 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2023-03-31 05:30:57,664 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 05:30:57,664 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2023-03-31 05:30:57,664 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2023-03-31 05:30:57,664 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 05:30:57,664 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 05:30:57,665 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 05:30:57,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 05:30:57,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 05:30:57,665 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-03-31 05:30:57,665 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 05:30:57,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 05:30:57,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 05:30:57,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 05:30:57,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 05:30:57,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 05:30:57,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 05:30:57,734 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 05:30:57,736 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 05:30:59,299 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 05:31:00,173 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 05:31:00,173 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-31 05:31:00,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 05:31:00 BoogieIcfgContainer [2023-03-31 05:31:00,178 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 05:31:00,179 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2023-03-31 05:31:00,179 INFO L271 PluginConnector]: Initializing Sifa... [2023-03-31 05:31:00,179 INFO L275 PluginConnector]: Sifa initialized [2023-03-31 05:31:00,180 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 05:31:00" (1/1) ... [2023-03-31 05:31:00,180 INFO L79 SifaObserver]: LogSizeWrapperFluid Intern Fluid=SizeLimitFluid ♦ Abstract Domain=IntervalDomain ♦ Max. Parallel Octagon=2 ♦ 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=POLY_PAC ♦ Max. Parallel Equality=2 ♦ SizeLimitFluid Max. DAG Size=-1 [2023-03-31 05:31:00,202 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2023-03-31 05:31:00,203 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 05:31:00,209 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 05:31:00,212 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 05:31:00,213 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 05:31:00,339 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 71 for LOIs [2023-03-31 05:31:00,737 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 34 [2023-03-31 05:31:00,869 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 26 [2023-03-31 05:32:02,390 INFO L197 IcfgInterpreter]: Interpreting procedure calculate_output with input of size 41 for LOIs [2023-03-31 05:32:02,443 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 34 [2023-03-31 05:32:02,591 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 05:32:02,599 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2023-03-31 05:32:02,599 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2023-03-31 05:32:02,600 INFO L158 Benchmark]: Toolchain (without parser) took 65762.74ms. Allocated memory was 332.4MB in the beginning and 1.6GB in the end (delta: 1.2GB). Free memory was 287.7MB in the beginning and 766.7MB in the end (delta: -479.0MB). Peak memory consumption was 768.8MB. Max. memory is 8.0GB. [2023-03-31 05:32:02,601 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 201.3MB. Free memory is still 149.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 05:32:02,601 INFO L158 Benchmark]: CACSL2BoogieTranslator took 624.81ms. Allocated memory is still 332.4MB. Free memory was 287.2MB in the beginning and 225.3MB in the end (delta: 61.9MB). Peak memory consumption was 61.9MB. Max. memory is 8.0GB. [2023-03-31 05:32:02,601 INFO L158 Benchmark]: Boogie Preprocessor took 144.31ms. Allocated memory is still 332.4MB. Free memory was 225.3MB in the beginning and 215.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-03-31 05:32:02,602 INFO L158 Benchmark]: RCFGBuilder took 2567.68ms. Allocated memory was 332.4MB in the beginning and 539.0MB in the end (delta: 206.6MB). Free memory was 215.4MB in the beginning and 435.5MB in the end (delta: -220.1MB). Peak memory consumption was 130.1MB. Max. memory is 8.0GB. [2023-03-31 05:32:02,602 INFO L158 Benchmark]: Sifa took 62420.45ms. Allocated memory was 539.0MB in the beginning and 1.6GB in the end (delta: 1.0GB). Free memory was 435.5MB in the beginning and 766.7MB in the end (delta: -331.2MB). Peak memory consumption was 708.9MB. Max. memory is 8.0GB. [2023-03-31 05:32:02,603 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 201.3MB. Free memory is still 149.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 624.81ms. Allocated memory is still 332.4MB. Free memory was 287.2MB in the beginning and 225.3MB in the end (delta: 61.9MB). Peak memory consumption was 61.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 144.31ms. Allocated memory is still 332.4MB. Free memory was 225.3MB in the beginning and 215.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * RCFGBuilder took 2567.68ms. Allocated memory was 332.4MB in the beginning and 539.0MB in the end (delta: 206.6MB). Free memory was 215.4MB in the beginning and 435.5MB in the end (delta: -220.1MB). Peak memory consumption was 130.1MB. Max. memory is 8.0GB. * Sifa took 62420.45ms. Allocated memory was 539.0MB in the beginning and 1.6GB in the end (delta: 1.0GB). Free memory was 435.5MB in the beginning and 766.7MB in the end (delta: -331.2MB). Peak memory consumption was 708.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME: 62.4s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 222, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 464, TOOLS_POST_TIME: 45.2s, TOOLS_POST_CALL_APPLICATIONS: 7, TOOLS_POST_CALL_TIME: 0.2s, TOOLS_POST_RETURN_APPLICATIONS: 5, TOOLS_POST_RETURN_TIME: 15.8s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 476, TOOLS_QUANTIFIERELIM_TIME: 61.0s, TOOLS_QUANTIFIERELIM_MAX_TIME: 24.5s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 480, FLUID_YES_ANSWERS: 208, DOMAIN_JOIN_APPLICATIONS: 222, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 208, DOMAIN_ALPHA_TIME: 0.7s, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 222, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 0.1s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.1s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 5, CALL_SUMMARIZER_CACHE_MISSES: 3, CALL_SUMMARIZER_OVERALL_TIME: 61.8s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 61.8s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.2s, DAG_COMPRESSION_PROCESSED_NODES: 10973, DAG_COMPRESSION_RETAINED_NODES: 483 - UnprovableResult [Line: 137]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Over-approximation of reachable states at this location is 909#(and (= ~a12~0 9) (= ~a16~0 10) (< 0 (+ ~a18~0 79)) (or (and (= 3 ~inputC~0) (<= calculate_output_~input 6) (<= 0 (+ 79 |old(~a18~0)|)) (= ~inputD~0 4) (<= |calculate_output_#in~input| 6) (<= 1 |calculate_output_#in~input|) (= 5 ~inputE~0) (<= 1 calculate_output_~input) (= 6 ~inputF~0) (= |#NULL.offset| 0) (= ~inputA~0 1) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 2 ~inputB~0)) (and (= ~a18~0 134) (= 3 ~inputC~0) (<= calculate_output_~input 6) (= ~inputD~0 4) (<= |calculate_output_#in~input| 6) (<= 1 |calculate_output_#in~input|) (= 5 ~inputE~0) (<= 1 calculate_output_~input) (= 6 ~inputF~0) (= |#NULL.offset| 0) (= ~inputA~0 1) (<= 0 |#StackHeapBarrier|) (= 134 |old(~a18~0)|) (= |#NULL.base| 0) (= 2 ~inputB~0)) (and (= 3 ~inputC~0) (<= calculate_output_~input 6) (<= 134 ~a18~0) (= ~inputD~0 4) (<= |calculate_output_#in~input| 6) (<= 1 |calculate_output_#in~input|) (= 5 ~inputE~0) (<= 1 calculate_output_~input) (<= 134 |old(~a18~0)|) (= 6 ~inputF~0) (= |#NULL.offset| 0) (= ~inputA~0 1) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 2 ~inputB~0)) (and (= 3 ~inputC~0) (<= calculate_output_~input 6) (<= 0 (+ 79 |old(~a18~0)|)) (= ~inputD~0 4) (<= |calculate_output_#in~input| 6) (<= |old(~a18~0)| 134) (<= 1 |calculate_output_#in~input|) (= 5 ~inputE~0) (<= 1 calculate_output_~input) (= 6 ~inputF~0) (= |#NULL.offset| 0) (= ~inputA~0 1) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 2 ~inputB~0)) (and (= 3 ~inputC~0) (<= 0 (+ 156 |old(~a18~0)|)) (<= calculate_output_~input 6) (= ~inputD~0 4) (<= |calculate_output_#in~input| 6) (<= |old(~a18~0)| 134) (<= 1 |calculate_output_#in~input|) (= 5 ~inputE~0) (<= 1 calculate_output_~input) (= 6 ~inputF~0) (= |#NULL.offset| 0) (= ~inputA~0 1) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 2 ~inputB~0)) (and (= 3 ~inputC~0) (<= calculate_output_~input 6) (= ~inputD~0 4) (<= |calculate_output_#in~input| 6) (<= 1 |calculate_output_#in~input|) (= 5 ~inputE~0) (<= 1 calculate_output_~input) (= 6 ~inputF~0) (= |#NULL.offset| 0) (= ~inputA~0 1) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= 2 ~inputB~0))) (= ~a15~0 3) (<= ~a18~0 134)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-03-31 05:32:02,618 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...