/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-rers2012/Problem07_label23.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 21:36:30,962 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 21:36:30,964 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 21:36:31,000 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 21:36:31,001 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 21:36:31,003 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 21:36:31,006 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 21:36:31,009 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 21:36:31,011 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 21:36:31,015 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 21:36:31,017 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 21:36:31,018 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 21:36:31,018 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 21:36:31,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 21:36:31,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 21:36:31,022 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 21:36:31,022 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 21:36:31,023 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 21:36:31,024 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 21:36:31,028 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 21:36:31,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 21:36:31,030 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 21:36:31,031 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 21:36:31,032 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 21:36:31,038 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 21:36:31,038 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 21:36:31,038 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 21:36:31,040 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 21:36:31,040 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 21:36:31,040 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 21:36:31,041 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 21:36:31,041 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 21:36:31,042 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 21:36:31,043 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 21:36:31,043 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 21:36:31,043 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 21:36:31,043 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 21:36:31,044 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 21:36:31,044 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 21:36:31,044 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 21:36:31,045 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 21:36:31,046 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 21:36:31,072 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 21:36:31,072 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 21:36:31,073 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 21:36:31,073 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 21:36:31,074 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 21:36:31,074 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 21:36:31,074 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 21:36:31,074 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 21:36:31,074 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 21:36:31,074 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 21:36:31,075 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 21:36:31,075 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 21:36:31,075 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 21:36:31,075 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 21:36:31,075 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 21:36:31,075 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 21:36:31,075 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 21:36:31,076 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 21:36:31,076 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 21:36:31,076 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 21:36:31,076 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 21:36:31,076 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 21:36:31,076 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 21:36:31,077 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 21:36:31,077 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 21:36:31,077 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 21:36:31,077 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 21:36:31,077 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 21:36:31,077 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 21:36:31,077 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 21:36:31,077 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 21:36:31,078 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 21:36:31,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 21:36:31,078 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 21:36:31,078 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 21:36:31,078 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 21:36:31,078 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 21:36:31,078 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 21:36:31,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 21:36:31,078 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 21:36:31,079 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 21:36:31,079 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 21:36:31,257 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 21:36:31,279 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 21:36:31,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 21:36:31,282 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 21:36:31,284 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 21:36:31,285 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem07_label23.c [2023-03-31 21:36:32,381 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 21:36:33,816 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 21:36:33,816 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem07_label23.c [2023-03-31 21:36:33,942 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c35950aad/eff403dc065548f6a4347a0a9bc9419c/FLAG17c29bff4 [2023-03-31 21:36:33,952 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c35950aad/eff403dc065548f6a4347a0a9bc9419c [2023-03-31 21:36:33,954 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 21:36:33,955 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 21:36:33,956 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 21:36:33,956 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 21:36:33,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 21:36:33,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 09:36:33" (1/1) ... [2023-03-31 21:36:33,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b1e2024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:36:33, skipping insertion in model container [2023-03-31 21:36:33,964 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 09:36:33" (1/1) ... [2023-03-31 21:36:33,970 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 21:36:34,536 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 21:36:41,781 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/Problem07_label23.c[2770180,2770193] [2023-03-31 21:36:41,833 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 21:36:41,841 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 21:36:45,924 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/Problem07_label23.c[2770180,2770193] [2023-03-31 21:36:45,931 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 21:36:46,872 INFO L208 MainTranslator]: Completed translation [2023-03-31 21:36:46,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:36:46 WrapperNode [2023-03-31 21:36:46,877 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 21:36:46,878 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 21:36:46,878 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 21:36:46,879 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 21:36:46,897 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:36:46" (1/1) ... [2023-03-31 21:36:46,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:36:46" (1/1) ... [2023-03-31 21:36:47,745 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:36:46" (1/1) ... [2023-03-31 21:36:47,746 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:36:46" (1/1) ... [2023-03-31 21:36:48,770 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:36:46" (1/1) ... [2023-03-31 21:36:48,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:36:46" (1/1) ... [2023-03-31 21:36:49,144 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:36:46" (1/1) ... [2023-03-31 21:36:49,230 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:36:46" (1/1) ... [2023-03-31 21:36:49,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 21:36:49,957 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 21:36:49,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 21:36:49,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 21:36:49,959 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:36:46" (1/1) ... [2023-03-31 21:36:49,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 21:36:49,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 21:36:50,042 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 21:36:50,081 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 21:36:50,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 21:36:50,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 21:36:50,111 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 21:36:50,111 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2023-03-31 21:36:50,111 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2023-03-31 21:36:50,111 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2023-03-31 21:36:50,111 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2023-03-31 21:36:50,111 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2023-03-31 21:36:50,111 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2023-03-31 21:36:50,111 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2023-03-31 21:36:50,112 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2023-03-31 21:36:50,112 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output9 [2023-03-31 21:36:50,112 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output10 [2023-03-31 21:36:50,112 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output11 [2023-03-31 21:36:50,112 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output12 [2023-03-31 21:36:50,112 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output13 [2023-03-31 21:36:50,112 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output14 [2023-03-31 21:36:50,112 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output15 [2023-03-31 21:36:50,112 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output16 [2023-03-31 21:36:50,112 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output17 [2023-03-31 21:36:50,112 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output18 [2023-03-31 21:36:50,112 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output19 [2023-03-31 21:36:50,113 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output20 [2023-03-31 21:36:50,113 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output21 [2023-03-31 21:36:50,113 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output22 [2023-03-31 21:36:50,113 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output23 [2023-03-31 21:36:50,113 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output24 [2023-03-31 21:36:50,113 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output25 [2023-03-31 21:36:50,113 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output26 [2023-03-31 21:36:50,113 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output27 [2023-03-31 21:36:50,113 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output28 [2023-03-31 21:36:50,113 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output29 [2023-03-31 21:36:50,113 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output30 [2023-03-31 21:36:50,113 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output31 [2023-03-31 21:36:50,113 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output32 [2023-03-31 21:36:50,114 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output33 [2023-03-31 21:36:50,114 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output34 [2023-03-31 21:36:50,114 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output35 [2023-03-31 21:36:50,114 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output36 [2023-03-31 21:36:50,114 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output37 [2023-03-31 21:36:50,114 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output38 [2023-03-31 21:36:50,115 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output39 [2023-03-31 21:36:50,115 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output40 [2023-03-31 21:36:50,115 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output41 [2023-03-31 21:36:50,115 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output42 [2023-03-31 21:36:50,115 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output43 [2023-03-31 21:36:50,116 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output44 [2023-03-31 21:36:50,116 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output45 [2023-03-31 21:36:50,116 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output46 [2023-03-31 21:36:50,116 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 21:36:50,116 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2023-03-31 21:36:50,116 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2023-03-31 21:36:50,116 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2023-03-31 21:36:50,116 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2023-03-31 21:36:50,117 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2023-03-31 21:36:50,117 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2023-03-31 21:36:50,117 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2023-03-31 21:36:50,117 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2023-03-31 21:36:50,117 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output9 [2023-03-31 21:36:50,117 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output10 [2023-03-31 21:36:50,117 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output11 [2023-03-31 21:36:50,117 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output12 [2023-03-31 21:36:50,117 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output13 [2023-03-31 21:36:50,118 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output14 [2023-03-31 21:36:50,118 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output15 [2023-03-31 21:36:50,118 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output16 [2023-03-31 21:36:50,118 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output17 [2023-03-31 21:36:50,121 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output18 [2023-03-31 21:36:50,121 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output19 [2023-03-31 21:36:50,121 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output20 [2023-03-31 21:36:50,121 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output21 [2023-03-31 21:36:50,121 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output22 [2023-03-31 21:36:50,121 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output23 [2023-03-31 21:36:50,121 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output24 [2023-03-31 21:36:50,122 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output25 [2023-03-31 21:36:50,122 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output26 [2023-03-31 21:36:50,122 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output27 [2023-03-31 21:36:50,122 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output28 [2023-03-31 21:36:50,122 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output29 [2023-03-31 21:36:50,122 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output30 [2023-03-31 21:36:50,122 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output31 [2023-03-31 21:36:50,122 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output32 [2023-03-31 21:36:50,122 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output33 [2023-03-31 21:36:50,123 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output34 [2023-03-31 21:36:50,123 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output35 [2023-03-31 21:36:50,123 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output36 [2023-03-31 21:36:50,124 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output37 [2023-03-31 21:36:50,124 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output38 [2023-03-31 21:36:50,124 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output39 [2023-03-31 21:36:50,124 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output40 [2023-03-31 21:36:50,124 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output41 [2023-03-31 21:36:50,124 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output42 [2023-03-31 21:36:50,140 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output43 [2023-03-31 21:36:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output44 [2023-03-31 21:36:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output45 [2023-03-31 21:36:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output46 [2023-03-31 21:36:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 21:36:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 21:36:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 21:36:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 21:36:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 21:36:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-03-31 21:36:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 21:36:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 21:36:50,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 21:36:50,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 21:36:50,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 21:36:50,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 21:36:50,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 21:36:50,321 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 21:36:50,323 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 21:37:20,565 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 21:37:21,463 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 21:37:21,463 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-31 21:37:21,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 09:37:21 BoogieIcfgContainer [2023-03-31 21:37:21,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 21:37:21,477 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 21:37:21,477 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 21:37:21,480 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 21:37:21,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 09:36:33" (1/3) ... [2023-03-31 21:37:21,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56cf15bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 09:37:21, skipping insertion in model container [2023-03-31 21:37:21,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:36:46" (2/3) ... [2023-03-31 21:37:21,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56cf15bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 09:37:21, skipping insertion in model container [2023-03-31 21:37:21,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 09:37:21" (3/3) ... [2023-03-31 21:37:21,482 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem07_label23.c [2023-03-31 21:37:21,496 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 21:37:21,496 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 21:37:21,642 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 21:37:21,647 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;@6edd5e68, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-31 21:37:21,647 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 21:37:21,673 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 21:37:22,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10182 [2023-03-31 21:37:22,366 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 21:37:22,371 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 21:37:22,381 INFO L85 PathProgramCache]: Analyzing trace with hash 536054400, now seen corresponding path program 1 times [2023-03-31 21:37:22,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 21:37:22,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116483292] [2023-03-31 21:37:22,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 21:37:22,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 21:37:25,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat