/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-programs/Problem101_label20.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 10:40:46,839 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 10:40:46,842 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 10:40:46,882 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 10:40:46,882 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 10:40:46,890 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 10:40:46,892 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 10:40:46,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 10:40:46,897 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 10:40:46,900 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 10:40:46,901 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 10:40:46,902 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 10:40:46,902 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 10:40:46,904 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 10:40:46,906 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 10:40:46,908 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 10:40:46,909 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 10:40:46,910 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 10:40:46,911 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 10:40:46,919 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 10:40:46,921 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 10:40:46,921 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 10:40:46,922 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 10:40:46,923 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 10:40:46,934 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 10:40:46,935 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 10:40:46,935 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 10:40:46,938 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 10:40:46,938 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 10:40:46,940 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 10:40:46,940 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 10:40:46,941 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 10:40:46,941 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 10:40:46,942 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 10:40:46,943 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 10:40:46,943 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 10:40:46,944 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 10:40:46,944 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 10:40:46,944 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 10:40:46,945 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 10:40:46,946 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 10:40:46,947 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 10:40:46,974 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 10:40:46,975 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 10:40:46,976 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 10:40:46,976 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 10:40:46,976 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 10:40:46,976 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 10:40:46,977 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 10:40:46,977 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 10:40:46,977 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 10:40:46,977 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 10:40:46,977 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 10:40:46,978 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 10:40:46,978 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 10:40:46,978 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 10:40:46,978 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 10:40:46,978 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 10:40:46,978 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 10:40:46,979 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 10:40:46,979 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 10:40:46,979 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 10:40:46,979 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 10:40:46,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 10:40:46,980 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 10:40:46,980 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 10:40:46,980 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 10:40:46,980 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 10:40:46,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 10:40:46,981 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 10:40:46,981 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 10:40:46,981 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 10:40:47,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 10:40:47,296 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 10:40:47,299 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 10:40:47,301 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 10:40:47,301 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 10:40:47,302 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-programs/Problem101_label20.c [2020-10-12 10:40:47,358 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/915ef6d2d/827edb63f47a4cb8a42435f1189e6bc7/FLAGcbecd9408 [2020-10-12 10:40:49,770 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 10:40:49,770 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-programs/Problem101_label20.c [2020-10-12 10:40:49,930 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/915ef6d2d/827edb63f47a4cb8a42435f1189e6bc7/FLAGcbecd9408 [2020-10-12 10:40:50,264 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/915ef6d2d/827edb63f47a4cb8a42435f1189e6bc7 [2020-10-12 10:40:50,276 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 10:40:50,278 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 10:40:50,279 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 10:40:50,280 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 10:40:50,284 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 10:40:50,285 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:40:50" (1/1) ... [2020-10-12 10:40:50,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7be095dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:40:50, skipping insertion in model container [2020-10-12 10:40:50,288 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:40:50" (1/1) ... [2020-10-12 10:40:50,298 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 10:40:51,397 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 10:41:03,388 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 10:41:03,393 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 10:41:11,790 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 10:41:12,770 INFO L208 MainTranslator]: Completed translation [2020-10-12 10:41:12,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:41:12 WrapperNode [2020-10-12 10:41:12,771 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 10:41:12,772 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 10:41:12,772 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 10:41:12,772 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 10:41:12,782 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:41:12" (1/1) ... [2020-10-12 10:41:12,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:41:12" (1/1) ... [2020-10-12 10:41:13,188 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:41:12" (1/1) ... [2020-10-12 10:41:13,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:41:12" (1/1) ... [2020-10-12 10:41:17,074 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:41:12" (1/1) ... [2020-10-12 10:41:17,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:41:12" (1/1) ... [2020-10-12 10:41:17,602 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:41:12" (1/1) ... [2020-10-12 10:41:17,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 10:41:17,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 10:41:17,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 10:41:17,940 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 10:41:17,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:41:12" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 10:41:18,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 10:41:18,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 10:41:18,014 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 10:41:18,014 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-12 10:41:18,014 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-12 10:41:18,014 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-12 10:41:18,015 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2020-10-12 10:41:18,015 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2020-10-12 10:41:18,015 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2020-10-12 10:41:18,015 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2020-10-12 10:41:18,015 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output9 [2020-10-12 10:41:18,015 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output10 [2020-10-12 10:41:18,016 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output11 [2020-10-12 10:41:18,016 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output12 [2020-10-12 10:41:18,016 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output13 [2020-10-12 10:41:18,016 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output14 [2020-10-12 10:41:18,016 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output15 [2020-10-12 10:41:18,016 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output16 [2020-10-12 10:41:18,017 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output17 [2020-10-12 10:41:18,017 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output18 [2020-10-12 10:41:18,017 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output19 [2020-10-12 10:41:18,017 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output20 [2020-10-12 10:41:18,017 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output21 [2020-10-12 10:41:18,017 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output22 [2020-10-12 10:41:18,018 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output23 [2020-10-12 10:41:18,018 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output24 [2020-10-12 10:41:18,018 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output25 [2020-10-12 10:41:18,018 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output26 [2020-10-12 10:41:18,018 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output27 [2020-10-12 10:41:18,018 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output28 [2020-10-12 10:41:18,019 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output29 [2020-10-12 10:41:18,019 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output30 [2020-10-12 10:41:18,019 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output31 [2020-10-12 10:41:18,019 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output32 [2020-10-12 10:41:18,019 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output33 [2020-10-12 10:41:18,019 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output34 [2020-10-12 10:41:18,020 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output35 [2020-10-12 10:41:18,020 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output36 [2020-10-12 10:41:18,020 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output37 [2020-10-12 10:41:18,020 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output38 [2020-10-12 10:41:18,020 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output39 [2020-10-12 10:41:18,021 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output40 [2020-10-12 10:41:18,021 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output41 [2020-10-12 10:41:18,021 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output42 [2020-10-12 10:41:18,021 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output43 [2020-10-12 10:41:18,021 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output44 [2020-10-12 10:41:18,021 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output45 [2020-10-12 10:41:18,022 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output46 [2020-10-12 10:41:18,022 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 10:41:18,022 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 10:41:18,022 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-12 10:41:18,022 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-12 10:41:18,022 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-12 10:41:18,022 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2020-10-12 10:41:18,022 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2020-10-12 10:41:18,023 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2020-10-12 10:41:18,023 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2020-10-12 10:41:18,023 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output9 [2020-10-12 10:41:18,023 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output10 [2020-10-12 10:41:18,023 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output11 [2020-10-12 10:41:18,024 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output12 [2020-10-12 10:41:18,024 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output13 [2020-10-12 10:41:18,024 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output14 [2020-10-12 10:41:18,024 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output15 [2020-10-12 10:41:18,024 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output16 [2020-10-12 10:41:18,024 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output17 [2020-10-12 10:41:18,024 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output18 [2020-10-12 10:41:18,024 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output19 [2020-10-12 10:41:18,025 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output20 [2020-10-12 10:41:18,025 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output21 [2020-10-12 10:41:18,025 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output22 [2020-10-12 10:41:18,025 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output23 [2020-10-12 10:41:18,025 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output24 [2020-10-12 10:41:18,025 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output25 [2020-10-12 10:41:18,025 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output26 [2020-10-12 10:41:18,026 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output27 [2020-10-12 10:41:18,026 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output28 [2020-10-12 10:41:18,026 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output29 [2020-10-12 10:41:18,026 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output30 [2020-10-12 10:41:18,026 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output31 [2020-10-12 10:41:18,026 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output32 [2020-10-12 10:41:18,027 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output33 [2020-10-12 10:41:18,027 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output34 [2020-10-12 10:41:18,027 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output35 [2020-10-12 10:41:18,027 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output36 [2020-10-12 10:41:18,027 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output37 [2020-10-12 10:41:18,027 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output38 [2020-10-12 10:41:18,028 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output39 [2020-10-12 10:41:18,028 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output40 [2020-10-12 10:41:18,028 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output41 [2020-10-12 10:41:18,028 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output42 [2020-10-12 10:41:18,028 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output43 [2020-10-12 10:41:18,028 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output44 [2020-10-12 10:41:18,029 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output45 [2020-10-12 10:41:18,029 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output46 [2020-10-12 10:41:18,029 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 10:41:18,029 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 10:41:18,029 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 10:41:18,029 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 10:41:18,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 10:41:18,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 10:42:02,746 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 10:42:02,746 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 10:42:02,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:42:02 BoogieIcfgContainer [2020-10-12 10:42:02,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 10:42:02,795 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 10:42:02,795 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 10:42:02,799 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 10:42:02,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 10:40:50" (1/3) ... [2020-10-12 10:42:02,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ad81ce9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:42:02, skipping insertion in model container [2020-10-12 10:42:02,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:41:12" (2/3) ... [2020-10-12 10:42:02,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ad81ce9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:42:02, skipping insertion in model container [2020-10-12 10:42:02,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:42:02" (3/3) ... [2020-10-12 10:42:02,803 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem101_label20.c [2020-10-12 10:42:02,814 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 10:42:02,833 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 10:42:02,845 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 10:42:02,899 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 10:42:02,900 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 10:42:02,900 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 10:42:02,900 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 10:42:02,900 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 10:42:02,900 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 10:42:02,900 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 10:42:02,901 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 10:42:03,042 INFO L276 IsEmpty]: Start isEmpty. Operand 10446 states. [2020-10-12 10:42:04,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10200 [2020-10-12 10:42:04,462 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:42:04,470 INFO L422 BasicCegarLoop]: 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, 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classic predicate unifier [2020-10-12 10:42:04,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1491915005, now seen corresponding path program 1 times [2020-10-12 10:42:04,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:42:04,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [375863221] [2020-10-12 10:42:04,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:42:09,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:42:12,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:42:16,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:42:16,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10297 [2020-10-12 10:42:16,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:42:16,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7026 [2020-10-12 10:42:16,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:42:16,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 96 [2020-10-12 10:42:16,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 10:42:16,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10291 [2020-10-12 10:42:16,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 10:42:55,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:42:55,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:42:55,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:42:55,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:42:55,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 10:42:55,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:42:55,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 10:42:55,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:42:55,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:42:55,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:42:55,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 10:42:55,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 10:43:56,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 10:43:56,814 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [375863221] [2020-10-12 10:43:56,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 10:43:56,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 10:43:56,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691868333] [2020-10-12 10:43:56,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 10:43:56,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:43:56,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 10:43:56,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 10:43:56,861 INFO L87 Difference]: Start difference. First operand 10446 states. Second operand 4 states.