/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_label27.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 21:36:46,779 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 21:36:46,780 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 21:36:46,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 21:36:46,808 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 21:36:46,808 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 21:36:46,809 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 21:36:46,810 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 21:36:46,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 21:36:46,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 21:36:46,812 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 21:36:46,813 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 21:36:46,813 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 21:36:46,814 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 21:36:46,815 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 21:36:46,815 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 21:36:46,816 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 21:36:46,816 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 21:36:46,817 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 21:36:46,819 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 21:36:46,819 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 21:36:46,820 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 21:36:46,821 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 21:36:46,822 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 21:36:46,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 21:36:46,824 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 21:36:46,824 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 21:36:46,825 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 21:36:46,825 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 21:36:46,826 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 21:36:46,826 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 21:36:46,827 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 21:36:46,827 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 21:36:46,828 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 21:36:46,828 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 21:36:46,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 21:36:46,829 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 21:36:46,829 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 21:36:46,829 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 21:36:46,830 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 21:36:46,831 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 21:36:46,831 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 21:36:46,845 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 21:36:46,845 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 21:36:46,845 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 21:36:46,845 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 21:36:46,846 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 21:36:46,846 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 21:36:46,846 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 21:36:46,846 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 21:36:46,846 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 21:36:46,846 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 21:36:46,847 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 21:36:46,847 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 21:36:46,847 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 21:36:46,847 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 21:36:46,847 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 21:36:46,847 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 21:36:46,847 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 21:36:46,848 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 21:36:46,848 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 21:36:46,848 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 21:36:46,848 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 21:36:46,848 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 21:36:46,848 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 21:36:46,848 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 21:36:46,848 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 21:36:46,849 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 21:36:46,849 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 21:36:46,849 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 21:36:46,849 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 21:36:46,849 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 21:36:46,849 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 21:36:46,849 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 21:36:46,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 21:36:46,850 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 21:36:46,850 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 21:36:46,850 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 21:36:46,850 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 21:36:46,850 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 21:36:46,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 21:36:46,850 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 21:36:46,850 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 21:36:46,850 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 21:36:47,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 21:36:47,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 21:36:47,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 21:36:47,076 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 21:36:47,078 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 21:36:47,079 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem07_label27.c [2023-03-31 21:36:48,198 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 21:36:49,643 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 21:36:49,644 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem07_label27.c [2023-03-31 21:36:49,750 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a48c55caa/c03da559b0b149688511f5c46672b252/FLAG7da304490 [2023-03-31 21:36:49,761 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a48c55caa/c03da559b0b149688511f5c46672b252 [2023-03-31 21:36:49,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 21:36:49,764 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 21:36:49,764 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 21:36:49,764 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 21:36:49,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 21:36:49,767 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 09:36:49" (1/1) ... [2023-03-31 21:36:49,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15a9c746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:36:49, skipping insertion in model container [2023-03-31 21:36:49,768 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 09:36:49" (1/1) ... [2023-03-31 21:36:49,772 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 21:36:50,304 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 21:36:57,764 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_label27.c[2771714,2771727] [2023-03-31 21:36:57,826 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 21:36:57,846 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 21:37:01,926 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_label27.c[2771714,2771727] [2023-03-31 21:37:01,933 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 21:37:02,900 INFO L208 MainTranslator]: Completed translation [2023-03-31 21:37:02,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:37:02 WrapperNode [2023-03-31 21:37:02,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 21:37:02,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 21:37:02,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 21:37:02,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 21:37:02,927 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:37:02" (1/1) ... [2023-03-31 21:37:02,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:37:02" (1/1) ... [2023-03-31 21:37:03,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:37:02" (1/1) ... [2023-03-31 21:37:03,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:37:02" (1/1) ... [2023-03-31 21:37:05,276 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:37:02" (1/1) ... [2023-03-31 21:37:05,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:37:02" (1/1) ... [2023-03-31 21:37:05,578 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:37:02" (1/1) ... [2023-03-31 21:37:05,653 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:37:02" (1/1) ... [2023-03-31 21:37:06,122 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 21:37:06,123 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 21:37:06,123 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 21:37:06,123 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 21:37:06,124 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:37:02" (1/1) ... [2023-03-31 21:37:06,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 21:37:06,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 21:37:06,162 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 21:37:06,176 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 21:37:06,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 21:37:06,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 21:37:06,186 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 21:37:06,186 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2023-03-31 21:37:06,186 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2023-03-31 21:37:06,186 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2023-03-31 21:37:06,187 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2023-03-31 21:37:06,187 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2023-03-31 21:37:06,187 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2023-03-31 21:37:06,187 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2023-03-31 21:37:06,187 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2023-03-31 21:37:06,187 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output9 [2023-03-31 21:37:06,187 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output10 [2023-03-31 21:37:06,187 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output11 [2023-03-31 21:37:06,187 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output12 [2023-03-31 21:37:06,187 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output13 [2023-03-31 21:37:06,187 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output14 [2023-03-31 21:37:06,187 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output15 [2023-03-31 21:37:06,187 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output16 [2023-03-31 21:37:06,187 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output17 [2023-03-31 21:37:06,188 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output18 [2023-03-31 21:37:06,188 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output19 [2023-03-31 21:37:06,188 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output20 [2023-03-31 21:37:06,188 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output21 [2023-03-31 21:37:06,188 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output22 [2023-03-31 21:37:06,188 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output23 [2023-03-31 21:37:06,188 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output24 [2023-03-31 21:37:06,188 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output25 [2023-03-31 21:37:06,188 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output26 [2023-03-31 21:37:06,188 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output27 [2023-03-31 21:37:06,188 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output28 [2023-03-31 21:37:06,188 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output29 [2023-03-31 21:37:06,188 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output30 [2023-03-31 21:37:06,188 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output31 [2023-03-31 21:37:06,189 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output32 [2023-03-31 21:37:06,189 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output33 [2023-03-31 21:37:06,189 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output34 [2023-03-31 21:37:06,189 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output35 [2023-03-31 21:37:06,189 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output36 [2023-03-31 21:37:06,189 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output37 [2023-03-31 21:37:06,189 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output38 [2023-03-31 21:37:06,189 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output39 [2023-03-31 21:37:06,189 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output40 [2023-03-31 21:37:06,189 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output41 [2023-03-31 21:37:06,189 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output42 [2023-03-31 21:37:06,189 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output43 [2023-03-31 21:37:06,190 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output44 [2023-03-31 21:37:06,190 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output45 [2023-03-31 21:37:06,190 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output46 [2023-03-31 21:37:06,190 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 21:37:06,190 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2023-03-31 21:37:06,190 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2023-03-31 21:37:06,190 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2023-03-31 21:37:06,190 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2023-03-31 21:37:06,190 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2023-03-31 21:37:06,190 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2023-03-31 21:37:06,190 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2023-03-31 21:37:06,190 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2023-03-31 21:37:06,190 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output9 [2023-03-31 21:37:06,191 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output10 [2023-03-31 21:37:06,191 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output11 [2023-03-31 21:37:06,191 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output12 [2023-03-31 21:37:06,191 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output13 [2023-03-31 21:37:06,191 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output14 [2023-03-31 21:37:06,191 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output15 [2023-03-31 21:37:06,191 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output16 [2023-03-31 21:37:06,191 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output17 [2023-03-31 21:37:06,191 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output18 [2023-03-31 21:37:06,191 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output19 [2023-03-31 21:37:06,191 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output20 [2023-03-31 21:37:06,191 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output21 [2023-03-31 21:37:06,191 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output22 [2023-03-31 21:37:06,192 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output23 [2023-03-31 21:37:06,192 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output24 [2023-03-31 21:37:06,192 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output25 [2023-03-31 21:37:06,192 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output26 [2023-03-31 21:37:06,192 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output27 [2023-03-31 21:37:06,192 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output28 [2023-03-31 21:37:06,192 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output29 [2023-03-31 21:37:06,192 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output30 [2023-03-31 21:37:06,192 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output31 [2023-03-31 21:37:06,192 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output32 [2023-03-31 21:37:06,192 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output33 [2023-03-31 21:37:06,192 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output34 [2023-03-31 21:37:06,192 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output35 [2023-03-31 21:37:06,192 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output36 [2023-03-31 21:37:06,193 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output37 [2023-03-31 21:37:06,193 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output38 [2023-03-31 21:37:06,193 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output39 [2023-03-31 21:37:06,193 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output40 [2023-03-31 21:37:06,193 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output41 [2023-03-31 21:37:06,193 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output42 [2023-03-31 21:37:06,193 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output43 [2023-03-31 21:37:06,193 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output44 [2023-03-31 21:37:06,193 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output45 [2023-03-31 21:37:06,193 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output46 [2023-03-31 21:37:06,193 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 21:37:06,193 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 21:37:06,193 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 21:37:06,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 21:37:06,194 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 21:37:06,194 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-03-31 21:37:06,194 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 21:37:06,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 21:37:06,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 21:37:06,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 21:37:06,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 21:37:06,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 21:37:06,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 21:37:06,292 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 21:37:06,294 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 21:37:32,691 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 21:37:34,035 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 21:37:34,035 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-31 21:37:34,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 09:37:34 BoogieIcfgContainer [2023-03-31 21:37:34,046 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 21:37:34,049 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 21:37:34,049 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 21:37:34,051 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 21:37:34,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 09:36:49" (1/3) ... [2023-03-31 21:37:34,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f758108 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 09:37:34, skipping insertion in model container [2023-03-31 21:37:34,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:37:02" (2/3) ... [2023-03-31 21:37:34,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f758108 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 09:37:34, skipping insertion in model container [2023-03-31 21:37:34,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 09:37:34" (3/3) ... [2023-03-31 21:37:34,061 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem07_label27.c [2023-03-31 21:37:34,072 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 21:37:34,072 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 21:37:34,235 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 21:37:34,240 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;@65a70ce7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-31 21:37:34,241 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 21:37:34,270 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 21:37:34,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10182 [2023-03-31 21:37:34,989 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 21:37:34,994 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 21:37:35,001 INFO L85 PathProgramCache]: Analyzing trace with hash -742683870, now seen corresponding path program 1 times [2023-03-31 21:37:35,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 21:37:35,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047117002] [2023-03-31 21:37:35,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 21:37:35,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 21:37:37,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat