/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 EqDomain -i ../sv-benchmarks/c/eca-rers2012/Problem10_label25.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 15:40:12,618 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 15:40:12,620 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 15:40:12,637 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 15:40:12,638 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 15:40:12,638 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 15:40:12,639 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 15:40:12,640 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 15:40:12,641 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 15:40:12,641 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 15:40:12,642 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 15:40:12,643 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 15:40:12,643 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 15:40:12,643 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 15:40:12,644 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 15:40:12,645 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 15:40:12,645 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 15:40:12,647 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 15:40:12,648 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 15:40:12,649 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 15:40:12,649 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 15:40:12,652 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 15:40:12,653 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 15:40:12,653 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 15:40:12,655 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-03-31 15:40:12,657 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 15:40:12,657 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 15:40:12,658 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 15:40:12,658 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 15:40:12,662 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 15:40:12,662 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 15:40:12,663 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 15:40:12,663 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 15:40:12,663 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 15:40:12,665 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 15:40:12,666 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 15:40:12,666 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 15:40:12,693 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 15:40:12,693 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 15:40:12,694 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 15:40:12,694 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 15:40:12,694 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 15:40:12,694 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 15:40:12,695 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 15:40:12,695 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 15:40:12,695 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 15:40:12,695 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 15:40:12,695 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 15:40:12,695 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 15:40:12,695 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 15:40:12,696 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 15:40:12,696 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 15:40:12,696 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 15:40:12,696 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 15:40:12,696 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 15:40:12,696 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 15:40:12,696 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 15:40:12,696 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 15:40:12,696 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 15:40:12,697 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 15:40:12,697 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 15:40:12,697 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 15:40:12,697 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 15:40:12,697 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 15:40:12,697 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 15:40:12,697 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 15:40:12,697 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 15:40:12,697 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 15:40:12,698 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 15:40:12,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 15:40:12,698 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 15:40:12,698 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 15:40:12,698 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 15:40:12,698 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 15:40:12,698 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 15:40:12,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 15:40:12,698 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 15:40:12,698 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 15:40:12,698 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-03-31 15:40:12,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 15:40:12,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 15:40:12,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 15:40:12,847 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 15:40:12,848 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 15:40:12,848 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem10_label25.c [2023-03-31 15:40:13,645 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 15:40:13,942 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 15:40:13,942 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label25.c [2023-03-31 15:40:13,954 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a27d7d038/e2641459363d4c13acbcf73891a0bebd/FLAG15424cd2a [2023-03-31 15:40:13,963 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a27d7d038/e2641459363d4c13acbcf73891a0bebd [2023-03-31 15:40:13,965 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 15:40:13,965 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 15:40:13,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 15:40:13,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 15:40:13,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 15:40:13,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 03:40:13" (1/1) ... [2023-03-31 15:40:13,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@152eaaed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 03:40:13, skipping insertion in model container [2023-03-31 15:40:13,970 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 03:40:13" (1/1) ... [2023-03-31 15:40:13,974 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 15:40:14,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 15:40:14,178 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/Problem10_label25.c[7284,7297] [2023-03-31 15:40:14,287 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 15:40:14,295 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 15:40:14,323 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/Problem10_label25.c[7284,7297] [2023-03-31 15:40:14,373 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 15:40:14,388 INFO L208 MainTranslator]: Completed translation [2023-03-31 15:40:14,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 03:40:14 WrapperNode [2023-03-31 15:40:14,388 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 15:40:14,389 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 15:40:14,390 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 15:40:14,390 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 15:40:14,397 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 03:40:14" (1/1) ... [2023-03-31 15:40:14,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 03:40:14" (1/1) ... [2023-03-31 15:40:14,418 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 03:40:14" (1/1) ... [2023-03-31 15:40:14,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 03:40:14" (1/1) ... [2023-03-31 15:40:14,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 03:40:14" (1/1) ... [2023-03-31 15:40:14,455 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 03:40:14" (1/1) ... [2023-03-31 15:40:14,457 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 03:40:14" (1/1) ... [2023-03-31 15:40:14,460 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 03:40:14" (1/1) ... [2023-03-31 15:40:14,464 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 15:40:14,477 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 15:40:14,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 15:40:14,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 15:40:14,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 03:40:14" (1/1) ... [2023-03-31 15:40:14,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 15:40:14,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 15:40:14,512 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 15:40:14,554 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 15:40:14,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 15:40:14,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 15:40:14,568 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 15:40:14,569 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2023-03-31 15:40:14,569 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 15:40:14,569 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2023-03-31 15:40:14,569 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 15:40:14,569 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 15:40:14,569 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 15:40:14,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 15:40:14,569 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 15:40:14,569 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-03-31 15:40:14,569 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 15:40:14,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 15:40:14,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 15:40:14,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 15:40:14,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 15:40:14,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 15:40:14,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 15:40:14,617 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 15:40:14,618 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 15:40:15,296 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 15:40:16,898 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 15:40:16,899 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-31 15:40:16,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 03:40:16 BoogieIcfgContainer [2023-03-31 15:40:16,902 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 15:40:16,903 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2023-03-31 15:40:16,903 INFO L271 PluginConnector]: Initializing Sifa... [2023-03-31 15:40:16,903 INFO L275 PluginConnector]: Sifa initialized [2023-03-31 15:40:16,904 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 03:40:16" (1/1) ... [2023-03-31 15:40:16,904 INFO L79 SifaObserver]: LogSizeWrapperFluid Intern Fluid=SizeLimitFluid ♦ Abstract Domain=EqDomain ♦ 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 15:40:16,946 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2023-03-31 15:40:16,947 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 15:40:16,949 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 15:40:16,952 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 15:40:16,953 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 15:40:17,101 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 68 for LOIs [2023-03-31 15:40:17,587 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 58 [2023-03-31 15:41:10,626 INFO L197 IcfgInterpreter]: Interpreting procedure calculate_output with input of size 82 for LOIs [2023-03-31 15:41:10,782 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 59 [2023-03-31 15:41:11,545 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 6780 conjuctions. This might take some time... [2023-03-31 15:41:11,713 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 50 conjuctions. [2023-03-31 15:41:13,143 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 15:41:13,152 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2023-03-31 15:41:13,152 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2023-03-31 15:41:13,153 INFO L158 Benchmark]: Toolchain (without parser) took 59187.50ms. Allocated memory was 282.1MB in the beginning and 2.8GB in the end (delta: 2.6GB). Free memory was 243.1MB in the beginning and 2.5GB in the end (delta: -2.3GB). Peak memory consumption was 284.6MB. Max. memory is 8.0GB. [2023-03-31 15:41:13,153 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 172.0MB. Free memory is still 122.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 15:41:13,154 INFO L158 Benchmark]: CACSL2BoogieTranslator took 422.57ms. Allocated memory is still 282.1MB. Free memory was 242.5MB in the beginning and 215.3MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2023-03-31 15:41:13,154 INFO L158 Benchmark]: Boogie Preprocessor took 74.50ms. Allocated memory is still 282.1MB. Free memory was 215.3MB in the beginning and 210.6MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-03-31 15:41:13,154 INFO L158 Benchmark]: RCFGBuilder took 2425.12ms. Allocated memory was 282.1MB in the beginning and 435.2MB in the end (delta: 153.1MB). Free memory was 210.6MB in the beginning and 265.0MB in the end (delta: -54.4MB). Peak memory consumption was 212.4MB. Max. memory is 8.0GB. [2023-03-31 15:41:13,155 INFO L158 Benchmark]: Sifa took 56249.34ms. Allocated memory was 435.2MB in the beginning and 2.8GB in the end (delta: 2.4GB). Free memory was 265.0MB in the beginning and 2.5GB in the end (delta: -2.3GB). Peak memory consumption was 153.9MB. Max. memory is 8.0GB. [2023-03-31 15:41:13,156 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 172.0MB. Free memory is still 122.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 422.57ms. Allocated memory is still 282.1MB. Free memory was 242.5MB in the beginning and 215.3MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 74.50ms. Allocated memory is still 282.1MB. Free memory was 215.3MB in the beginning and 210.6MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 2425.12ms. Allocated memory was 282.1MB in the beginning and 435.2MB in the end (delta: 153.1MB). Free memory was 210.6MB in the beginning and 265.0MB in the end (delta: -54.4MB). Peak memory consumption was 212.4MB. Max. memory is 8.0GB. * Sifa took 56249.34ms. Allocated memory was 435.2MB in the beginning and 2.8GB in the end (delta: 2.4GB). Free memory was 265.0MB in the beginning and 2.5GB in the end (delta: -2.3GB). Peak memory consumption was 153.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME: 56.2s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 1, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 18, TOOLS_POST_TIME: 53.4s, TOOLS_POST_CALL_APPLICATIONS: 5, TOOLS_POST_CALL_TIME: 0.2s, TOOLS_POST_RETURN_APPLICATIONS: 3, TOOLS_POST_RETURN_TIME: 0.1s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 26, TOOLS_QUANTIFIERELIM_TIME: 53.6s, TOOLS_QUANTIFIERELIM_MAX_TIME: 52.2s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 31, FLUID_YES_ANSWERS: 6, DOMAIN_JOIN_APPLICATIONS: 1, DOMAIN_JOIN_TIME: 0.2s, DOMAIN_ALPHA_APPLICATIONS: 6, DOMAIN_ALPHA_TIME: 2.3s, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 1, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 53.5s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 53.5s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 3, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME: 53.3s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 53.3s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 50, DAG_COMPRESSION_RETAINED_NODES: 34 - UnprovableResult [Line: 206]: 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 36#(or (and (= (select |#length| 3) 12) (not (= |#length| (select |#memory_int| 1))) (= 3 ~inputC~0) (= 20 (select |#length| 2)) (= |old(~a10~0)| 1) (= ~a10~0 1) (= 3 calculate_output_~input) (not (= ~a1~0 38)) (= 2 (select |#length| 1)) (= ~inputD~0 4) (= ~a1~0 |old(~a1~0)|) (= (select |#valid| 3) 1) (= 7 |old(~a19~0)|) (not (= |#length| |#valid|)) (= 5 ~inputE~0) (not (= |#StackHeapBarrier| 0)) (= 6 ~inputF~0) (= (select |#valid| 1) 1) (= 14 ~a4~0) (= (select |#valid| 0) 0) (= ~a12~0 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (not (= |#valid| (select |#memory_int| 1))) (= |calculate_output_#in~input| 3) (= (select (select |#memory_int| 1) 0) 48) (= (select (select |#memory_int| 1) 1) 0) (= |#NULL.base| 0) (= 7 ~a19~0) (= 2 ~inputB~0)) (and (not (= ~a1~0 218)) (= (select |#length| 3) 12) (not (= |#length| (select |#memory_int| 1))) (= 3 ~inputC~0) (= 20 (select |#length| 2)) (= |old(~a10~0)| 1) (= ~a10~0 1) (= 3 calculate_output_~input) (not (= ~a1~0 38)) (= 2 (select |#length| 1)) (= ~inputD~0 4) (= ~a1~0 |old(~a1~0)|) (= (select |#valid| 3) 1) (= 7 |old(~a19~0)|) (not (= |#length| |#valid|)) (= 5 ~inputE~0) (not (= |#StackHeapBarrier| 0)) (= 6 ~inputF~0) (= (select |#valid| 1) 1) (= 14 ~a4~0) (= (select |#valid| 0) 0) (= ~a12~0 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (not (= |#valid| (select |#memory_int| 1))) (= |calculate_output_#in~input| 3) (= (select (select |#memory_int| 1) 0) 48) (= (select (select |#memory_int| 1) 1) 0) (= |#NULL.base| 0) (= 7 ~a19~0) (= 2 ~inputB~0)) (and (not (= ~a1~0 218)) (= (select |#length| 3) 12) (= |calculate_output_#in~input| 2) (not (= |#length| (select |#memory_int| 1))) (= 3 ~inputC~0) (= 20 (select |#length| 2)) (= |old(~a10~0)| 1) (= ~a10~0 1) (= 2 calculate_output_~input) (not (= ~a1~0 38)) (= 2 (select |#length| 1)) (= ~inputD~0 4) (= ~a1~0 |old(~a1~0)|) (= (select |#valid| 3) 1) (= 7 |old(~a19~0)|) (not (= |#length| |#valid|)) (= 5 ~inputE~0) (not (= |#StackHeapBarrier| 0)) (= 6 ~inputF~0) (= (select |#valid| 1) 1) (= 14 ~a4~0) (= (select |#valid| 0) 0) (= ~a12~0 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (not (= |#valid| (select |#memory_int| 1))) (= (select (select |#memory_int| 1) 0) 48) (= (select (select |#memory_int| 1) 1) 0) (= |#NULL.base| 0) (= 7 ~a19~0) (= 2 ~inputB~0)) (and (= (select |#length| 3) 12) (not (= |#length| (select |#memory_int| 1))) (= 3 ~inputC~0) (= 20 (select |#length| 2)) (= |old(~a10~0)| 1) (= ~a10~0 1) (= 6 calculate_output_~input) (not (= ~a1~0 38)) (= 2 (select |#length| 1)) (= ~inputD~0 4) (= ~a1~0 |old(~a1~0)|) (= (select |#valid| 3) 1) (= 7 |old(~a19~0)|) (not (= |#length| |#valid|)) (= 5 ~inputE~0) (not (= |#StackHeapBarrier| 0)) (= 6 ~inputF~0) (= |calculate_output_#in~input| 6) (= (select |#valid| 1) 1) (= 14 ~a4~0) (= (select |#valid| 0) 0) (= ~a12~0 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (not (= |#valid| (select |#memory_int| 1))) (= (select (select |#memory_int| 1) 0) 48) (= (select (select |#memory_int| 1) 1) 0) (= |#NULL.base| 0) (= 7 ~a19~0) (= 2 ~inputB~0)) (and (not (= ~a1~0 218)) (= (select |#length| 3) 12) (not (= |#length| (select |#memory_int| 1))) (= 3 ~inputC~0) (= 20 (select |#length| 2)) (= |old(~a10~0)| 1) (= ~a10~0 1) (= 5 calculate_output_~input) (= |calculate_output_#in~input| 5) (not (= ~a1~0 38)) (= 2 (select |#length| 1)) (= ~inputD~0 4) (= ~a1~0 |old(~a1~0)|) (= (select |#valid| 3) 1) (= 7 |old(~a19~0)|) (not (= |#length| |#valid|)) (= 5 ~inputE~0) (not (= |#StackHeapBarrier| 0)) (= 6 ~inputF~0) (= (select |#valid| 1) 1) (= 14 ~a4~0) (= (select |#valid| 0) 0) (= ~a12~0 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (not (= |#valid| (select |#memory_int| 1))) (= (select (select |#memory_int| 1) 0) 48) (= (select (select |#memory_int| 1) 1) 0) (= |#NULL.base| 0) (= 7 ~a19~0) (= 2 ~inputB~0)) (and (not (= ~a1~0 218)) (= (select |#length| 3) 12) (not (= |#length| (select |#memory_int| 1))) (= 3 ~inputC~0) (= 20 (select |#length| 2)) (= |old(~a10~0)| 1) (= ~a10~0 1) (= 6 calculate_output_~input) (not (= ~a1~0 38)) (= 2 (select |#length| 1)) (= ~inputD~0 4) (= ~a1~0 |old(~a1~0)|) (= (select |#valid| 3) 1) (= 7 |old(~a19~0)|) (not (= |#length| |#valid|)) (= 5 ~inputE~0) (not (= |#StackHeapBarrier| 0)) (= 6 ~inputF~0) (= |calculate_output_#in~input| 6) (= (select |#valid| 1) 1) (= 14 ~a4~0) (= (select |#valid| 0) 0) (= ~a12~0 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (not (= |#valid| (select |#memory_int| 1))) (= (select (select |#memory_int| 1) 0) 48) (= (select (select |#memory_int| 1) 1) 0) (= |#NULL.base| 0) (= 7 ~a19~0) (= 2 ~inputB~0)) (and (= (select |#length| 3) 12) (= |calculate_output_#in~input| 2) (not (= |#length| (select |#memory_int| 1))) (= 3 ~inputC~0) (= 20 (select |#length| 2)) (= |old(~a10~0)| 1) (= ~a10~0 1) (= 2 calculate_output_~input) (not (= ~a1~0 38)) (= 2 (select |#length| 1)) (= ~inputD~0 4) (= ~a1~0 |old(~a1~0)|) (= (select |#valid| 3) 1) (= 7 |old(~a19~0)|) (not (= |#length| |#valid|)) (= 5 ~inputE~0) (not (= |#StackHeapBarrier| 0)) (= 6 ~inputF~0) (= (select |#valid| 1) 1) (= 14 ~a4~0) (= (select |#valid| 0) 0) (= ~a12~0 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (not (= |#valid| (select |#memory_int| 1))) (= (select (select |#memory_int| 1) 0) 48) (= (select (select |#memory_int| 1) 1) 0) (= |#NULL.base| 0) (= 7 ~a19~0) (= 2 ~inputB~0)) (and (= (select |#length| 3) 12) (not (= |#length| (select |#memory_int| 1))) (= 3 ~inputC~0) (= 20 (select |#length| 2)) (= |old(~a10~0)| 1) (= ~a10~0 1) (= 5 calculate_output_~input) (= |calculate_output_#in~input| 5) (not (= ~a1~0 38)) (= 2 (select |#length| 1)) (= ~inputD~0 4) (= ~a1~0 |old(~a1~0)|) (= (select |#valid| 3) 1) (= 7 |old(~a19~0)|) (not (= |#length| |#valid|)) (= 5 ~inputE~0) (not (= |#StackHeapBarrier| 0)) (= 6 ~inputF~0) (= (select |#valid| 1) 1) (= 14 ~a4~0) (= (select |#valid| 0) 0) (= ~a12~0 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (not (= |#valid| (select |#memory_int| 1))) (= (select (select |#memory_int| 1) 0) 48) (= (select (select |#memory_int| 1) 1) 0) (= |#NULL.base| 0) (= 7 ~a19~0) (= 2 ~inputB~0)) (and (not (= ~a1~0 218)) (= (select |#length| 3) 12) (not (= |#length| (select |#memory_int| 1))) (= 3 ~inputC~0) (= 20 (select |#length| 2)) (= |old(~a10~0)| 1) (= ~a10~0 1) (not (= ~a1~0 38)) (= 2 (select |#length| 1)) (= ~inputD~0 4) (= ~a1~0 |old(~a1~0)|) (= (select |#valid| 3) 1) (= 7 |old(~a19~0)|) (not (= |#length| |#valid|)) (= 5 ~inputE~0) (not (= |#StackHeapBarrier| 0)) (= 6 ~inputF~0) (= (select |#valid| 1) 1) (= 14 ~a4~0) (= (select |#valid| 0) 0) (= ~a12~0 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (not (= |#valid| (select |#memory_int| 1))) (= (select (select |#memory_int| 1) 0) 48) (= |calculate_output_#in~input| 4) (= (select (select |#memory_int| 1) 1) 0) (= calculate_output_~input 4) (= |#NULL.base| 0) (= 7 ~a19~0) (= 2 ~inputB~0)) (and (= (select |#length| 3) 12) (not (= |#length| (select |#memory_int| 1))) (= 3 ~inputC~0) (= 20 (select |#length| 2)) (= |old(~a10~0)| 1) (= ~a10~0 1) (not (= ~a1~0 38)) (= 2 (select |#length| 1)) (= ~inputD~0 4) (= ~a1~0 |old(~a1~0)|) (= (select |#valid| 3) 1) (= 7 |old(~a19~0)|) (not (= |#length| |#valid|)) (= 5 ~inputE~0) (not (= |#StackHeapBarrier| 0)) (= 6 ~inputF~0) (= (select |#valid| 1) 1) (= 14 ~a4~0) (= (select |#valid| 0) 0) (= ~a12~0 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (not (= |#valid| (select |#memory_int| 1))) (= (select (select |#memory_int| 1) 0) 48) (= |calculate_output_#in~input| 4) (= (select (select |#memory_int| 1) 1) 0) (= calculate_output_~input 4) (= |#NULL.base| 0) (= 7 ~a19~0) (= 2 ~inputB~0))). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-03-31 15:41:13,169 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...