/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/AutomizerC.xml --sifa.abstract.domain IntervalDomain -i ../sv-benchmarks/c/eca-programs/Problem101_label05.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 22:35:14,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 22:35:14,090 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 22:35:14,111 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 22:35:14,111 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 22:35:14,112 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 22:35:14,113 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 22:35:14,114 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 22:35:14,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 22:35:14,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 22:35:14,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 22:35:14,116 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 22:35:14,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 22:35:14,121 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 22:35:14,121 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 22:35:14,122 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 22:35:14,122 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 22:35:14,123 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 22:35:14,124 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 22:35:14,125 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 22:35:14,126 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 22:35:14,132 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 22:35:14,134 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 22:35:14,136 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 22:35:14,139 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 22:35:14,139 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 22:35:14,140 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 22:35:14,140 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 22:35:14,140 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 22:35:14,141 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 22:35:14,141 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 22:35:14,141 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 22:35:14,142 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 22:35:14,142 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 22:35:14,143 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 22:35:14,143 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 22:35:14,143 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 22:35:14,143 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 22:35:14,144 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 22:35:14,144 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 22:35:14,144 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 22:35:14,151 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 22:35:14,171 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 22:35:14,171 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 22:35:14,171 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 22:35:14,171 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 22:35:14,172 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 22:35:14,172 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 22:35:14,172 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 22:35:14,172 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 22:35:14,172 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 22:35:14,172 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 22:35:14,172 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 22:35:14,173 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 22:35:14,173 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 22:35:14,173 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 22:35:14,173 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 22:35:14,173 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 22:35:14,173 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 22:35:14,173 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 22:35:14,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 22:35:14,173 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 22:35:14,174 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 22:35:14,174 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 22:35:14,174 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 22:35:14,174 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 22:35:14,174 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 22:35:14,174 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 22:35:14,174 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 22:35:14,174 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 22:35:14,174 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 22:35:14,174 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 22:35:14,174 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 22:35:14,174 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 22:35:14,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 22:35:14,175 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 22:35:14,175 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 22:35:14,175 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 22:35:14,175 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 22:35:14,175 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 22:35:14,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 22:35:14,175 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 22:35:14,175 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 22:35:14,175 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 22:35:14,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 22:35:14,339 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 22:35:14,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 22:35:14,341 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 22:35:14,342 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 22:35:14,343 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-programs/Problem101_label05.c [2023-03-31 22:35:15,260 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 22:35:16,367 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 22:35:16,368 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-programs/Problem101_label05.c [2023-03-31 22:35:16,455 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebf551c82/98958180961a479d8178ee52eba2983d/FLAG922b2db27 [2023-03-31 22:35:16,465 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebf551c82/98958180961a479d8178ee52eba2983d [2023-03-31 22:35:16,467 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 22:35:16,467 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 22:35:16,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 22:35:16,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 22:35:16,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 22:35:16,471 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 10:35:16" (1/1) ... [2023-03-31 22:35:16,472 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f30d528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:35:16, skipping insertion in model container [2023-03-31 22:35:16,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 10:35:16" (1/1) ... [2023-03-31 22:35:16,476 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 22:35:16,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 22:35:23,528 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-programs/Problem101_label05.c[2768844,2768857] [2023-03-31 22:35:23,575 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 22:35:23,581 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 22:35:27,540 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-programs/Problem101_label05.c[2768844,2768857] [2023-03-31 22:35:27,548 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 22:35:28,028 INFO L208 MainTranslator]: Completed translation [2023-03-31 22:35:28,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:35:28 WrapperNode [2023-03-31 22:35:28,028 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 22:35:28,029 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 22:35:28,029 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 22:35:28,029 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 22:35:28,037 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:35:28" (1/1) ... [2023-03-31 22:35:28,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:35:28" (1/1) ... [2023-03-31 22:35:28,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:35:28" (1/1) ... [2023-03-31 22:35:28,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:35:28" (1/1) ... [2023-03-31 22:35:29,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:35:28" (1/1) ... [2023-03-31 22:35:29,858 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:35:28" (1/1) ... [2023-03-31 22:35:29,960 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:35:28" (1/1) ... [2023-03-31 22:35:30,133 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:35:28" (1/1) ... [2023-03-31 22:35:30,545 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 22:35:30,545 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 22:35:30,545 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 22:35:30,545 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 22:35:30,546 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:35:28" (1/1) ... [2023-03-31 22:35:30,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 22:35:30,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 22:35:30,579 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 22:35:30,585 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 22:35:30,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 22:35:30,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 22:35:30,604 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 22:35:30,604 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2023-03-31 22:35:30,604 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2023-03-31 22:35:30,604 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2023-03-31 22:35:30,605 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2023-03-31 22:35:30,605 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2023-03-31 22:35:30,605 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2023-03-31 22:35:30,605 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2023-03-31 22:35:30,605 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2023-03-31 22:35:30,605 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output9 [2023-03-31 22:35:30,605 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output10 [2023-03-31 22:35:30,605 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output11 [2023-03-31 22:35:30,605 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output12 [2023-03-31 22:35:30,605 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output13 [2023-03-31 22:35:30,605 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output14 [2023-03-31 22:35:30,605 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output15 [2023-03-31 22:35:30,605 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output16 [2023-03-31 22:35:30,606 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output17 [2023-03-31 22:35:30,606 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output18 [2023-03-31 22:35:30,606 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output19 [2023-03-31 22:35:30,606 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output20 [2023-03-31 22:35:30,606 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output21 [2023-03-31 22:35:30,606 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output22 [2023-03-31 22:35:30,606 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output23 [2023-03-31 22:35:30,606 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output24 [2023-03-31 22:35:30,606 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output25 [2023-03-31 22:35:30,606 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output26 [2023-03-31 22:35:30,606 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output27 [2023-03-31 22:35:30,606 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output28 [2023-03-31 22:35:30,607 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output29 [2023-03-31 22:35:30,607 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output30 [2023-03-31 22:35:30,608 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output31 [2023-03-31 22:35:30,608 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output32 [2023-03-31 22:35:30,608 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output33 [2023-03-31 22:35:30,608 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output34 [2023-03-31 22:35:30,608 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output35 [2023-03-31 22:35:30,608 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output36 [2023-03-31 22:35:30,608 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output37 [2023-03-31 22:35:30,608 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output38 [2023-03-31 22:35:30,608 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output39 [2023-03-31 22:35:30,608 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output40 [2023-03-31 22:35:30,608 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output41 [2023-03-31 22:35:30,608 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output42 [2023-03-31 22:35:30,608 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output43 [2023-03-31 22:35:30,609 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output44 [2023-03-31 22:35:30,609 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output45 [2023-03-31 22:35:30,609 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output46 [2023-03-31 22:35:30,609 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 22:35:30,609 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2023-03-31 22:35:30,609 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2023-03-31 22:35:30,609 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2023-03-31 22:35:30,609 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2023-03-31 22:35:30,609 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2023-03-31 22:35:30,609 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2023-03-31 22:35:30,609 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2023-03-31 22:35:30,609 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2023-03-31 22:35:30,610 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output9 [2023-03-31 22:35:30,610 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output10 [2023-03-31 22:35:30,610 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output11 [2023-03-31 22:35:30,610 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output12 [2023-03-31 22:35:30,610 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output13 [2023-03-31 22:35:30,610 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output14 [2023-03-31 22:35:30,610 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output15 [2023-03-31 22:35:30,610 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output16 [2023-03-31 22:35:30,610 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output17 [2023-03-31 22:35:30,610 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output18 [2023-03-31 22:35:30,610 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output19 [2023-03-31 22:35:30,610 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output20 [2023-03-31 22:35:30,610 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output21 [2023-03-31 22:35:30,611 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output22 [2023-03-31 22:35:30,611 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output23 [2023-03-31 22:35:30,611 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output24 [2023-03-31 22:35:30,611 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output25 [2023-03-31 22:35:30,611 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output26 [2023-03-31 22:35:30,611 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output27 [2023-03-31 22:35:30,611 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output28 [2023-03-31 22:35:30,611 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output29 [2023-03-31 22:35:30,611 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output30 [2023-03-31 22:35:30,611 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output31 [2023-03-31 22:35:30,611 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output32 [2023-03-31 22:35:30,611 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output33 [2023-03-31 22:35:30,611 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output34 [2023-03-31 22:35:30,611 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output35 [2023-03-31 22:35:30,612 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output36 [2023-03-31 22:35:30,612 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output37 [2023-03-31 22:35:30,612 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output38 [2023-03-31 22:35:30,612 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output39 [2023-03-31 22:35:30,612 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output40 [2023-03-31 22:35:30,612 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output41 [2023-03-31 22:35:30,612 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output42 [2023-03-31 22:35:30,612 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output43 [2023-03-31 22:35:30,612 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output44 [2023-03-31 22:35:30,612 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output45 [2023-03-31 22:35:30,612 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output46 [2023-03-31 22:35:30,612 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 22:35:30,612 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 22:35:30,612 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 22:35:30,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 22:35:30,613 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 22:35:30,613 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-03-31 22:35:30,613 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 22:35:30,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 22:35:30,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 22:35:30,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 22:35:30,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 22:35:30,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 22:35:30,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 22:35:30,711 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 22:35:30,713 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 22:35:58,649 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 22:35:59,436 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 22:35:59,436 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-31 22:35:59,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 10:35:59 BoogieIcfgContainer [2023-03-31 22:35:59,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 22:35:59,448 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 22:35:59,448 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 22:35:59,450 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 22:35:59,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 10:35:16" (1/3) ... [2023-03-31 22:35:59,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d9ba43a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 10:35:59, skipping insertion in model container [2023-03-31 22:35:59,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 10:35:28" (2/3) ... [2023-03-31 22:35:59,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d9ba43a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 10:35:59, skipping insertion in model container [2023-03-31 22:35:59,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 10:35:59" (3/3) ... [2023-03-31 22:35:59,452 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem101_label05.c [2023-03-31 22:35:59,465 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 22:35:59,465 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 22:35:59,610 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 22:35:59,615 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@541feffc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-31 22:35:59,615 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 22:35:59,642 INFO L276 IsEmpty]: Start isEmpty. Operand has 10325 states, 10227 states have (on average 1.9860174049085753) internal successors, (20311), 10228 states have internal predecessors, (20311), 48 states have call successors, (48), 48 states have call predecessors, (48), 48 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-03-31 22:36:00,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10182 [2023-03-31 22:36:00,480 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 22:36:00,485 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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Initialized classic predicate unifier [2023-03-31 22:36:00,493 INFO L85 PathProgramCache]: Analyzing trace with hash -20161950, now seen corresponding path program 1 times [2023-03-31 22:36:00,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 22:36:00,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010708366] [2023-03-31 22:36:00,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 22:36:00,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 22:36:02,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat