/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=NARROWEST --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-rers2012/Problem07_label34.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 07:24:45,884 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 07:24:45,885 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 07:24:45,909 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 07:24:45,909 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 07:24:45,910 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 07:24:45,912 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 07:24:45,914 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 07:24:45,915 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 07:24:45,916 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 07:24:45,917 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 07:24:45,918 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 07:24:45,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 07:24:45,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 07:24:45,920 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 07:24:45,922 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 07:24:45,922 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 07:24:45,923 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 07:24:45,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 07:24:45,927 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 07:24:45,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 07:24:45,930 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 07:24:45,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 07:24:45,932 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 07:24:45,934 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 07:24:45,934 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 07:24:45,935 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 07:24:45,938 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 07:24:45,938 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 07:24:45,939 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 07:24:45,939 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 07:24:45,940 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 07:24:45,941 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 07:24:45,942 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 07:24:45,943 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 07:24:45,943 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 07:24:45,944 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 07:24:45,944 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 07:24:45,944 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 07:24:45,945 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 07:24:45,945 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 07:24:45,946 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 [2020-10-13 07:24:45,976 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 07:24:45,976 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 07:24:45,980 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 07:24:45,980 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 07:24:45,980 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 07:24:45,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 07:24:45,981 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 07:24:45,981 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 07:24:45,981 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 07:24:45,981 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 07:24:45,982 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 07:24:45,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 07:24:45,983 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 07:24:45,983 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 07:24:45,983 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 07:24:45,983 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 07:24:45,984 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 07:24:45,984 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 07:24:45,984 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 07:24:45,984 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 07:24:45,985 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 07:24:45,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 07:24:45,985 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 07:24:45,986 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 07:24:45,986 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 07:24:45,986 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 07:24:45,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 07:24:45,987 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 07:24:45,988 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 07:24:45,988 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 07:24:46,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 07:24:46,285 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 07:24:46,288 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 07:24:46,290 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 07:24:46,291 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 07:24:46,291 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem07_label34.c [2020-10-13 07:24:46,372 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/834ec4968/1fc5e439b04b4725aa101e6720bc89ba/FLAGabdbecbfa [2020-10-13 07:24:48,723 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 07:24:48,724 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem07_label34.c [2020-10-13 07:24:48,858 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/834ec4968/1fc5e439b04b4725aa101e6720bc89ba/FLAGabdbecbfa [2020-10-13 07:24:49,264 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/834ec4968/1fc5e439b04b4725aa101e6720bc89ba [2020-10-13 07:24:49,273 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 07:24:49,275 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 07:24:49,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 07:24:49,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 07:24:49,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 07:24:49,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:24:49" (1/1) ... [2020-10-13 07:24:49,285 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49320105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:24:49, skipping insertion in model container [2020-10-13 07:24:49,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:24:49" (1/1) ... [2020-10-13 07:24:49,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 07:24:50,314 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 07:25:02,814 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 07:25:02,819 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 07:25:12,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 07:25:12,977 INFO L208 MainTranslator]: Completed translation [2020-10-13 07:25:12,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:25:12 WrapperNode [2020-10-13 07:25:12,978 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 07:25:12,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 07:25:12,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 07:25:12,979 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 07:25:12,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:25:12" (1/1) ... [2020-10-13 07:25:12,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:25:12" (1/1) ... [2020-10-13 07:25:13,410 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:25:12" (1/1) ... [2020-10-13 07:25:13,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:25:12" (1/1) ... [2020-10-13 07:25:14,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:25:12" (1/1) ... [2020-10-13 07:25:15,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:25:12" (1/1) ... [2020-10-13 07:25:15,499 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:25:12" (1/1) ... [2020-10-13 07:25:15,913 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 07:25:15,913 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 07:25:15,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 07:25:15,914 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 07:25:15,915 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:25:12" (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 [2020-10-13 07:25:15,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 07:25:15,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 07:25:15,992 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 07:25:15,992 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-13 07:25:15,992 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-13 07:25:15,993 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-13 07:25:15,994 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2020-10-13 07:25:15,995 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2020-10-13 07:25:15,995 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2020-10-13 07:25:15,995 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2020-10-13 07:25:15,995 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output9 [2020-10-13 07:25:15,996 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output10 [2020-10-13 07:25:15,996 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output11 [2020-10-13 07:25:15,996 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output12 [2020-10-13 07:25:15,996 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output13 [2020-10-13 07:25:15,998 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output14 [2020-10-13 07:25:15,998 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output15 [2020-10-13 07:25:15,998 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output16 [2020-10-13 07:25:15,998 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output17 [2020-10-13 07:25:15,998 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output18 [2020-10-13 07:25:15,998 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output19 [2020-10-13 07:25:15,999 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output20 [2020-10-13 07:25:15,999 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output21 [2020-10-13 07:25:15,999 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output22 [2020-10-13 07:25:15,999 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output23 [2020-10-13 07:25:16,000 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output24 [2020-10-13 07:25:16,000 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output25 [2020-10-13 07:25:16,000 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output26 [2020-10-13 07:25:16,001 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output27 [2020-10-13 07:25:16,001 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output28 [2020-10-13 07:25:16,001 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output29 [2020-10-13 07:25:16,001 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output30 [2020-10-13 07:25:16,001 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output31 [2020-10-13 07:25:16,002 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output32 [2020-10-13 07:25:16,002 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output33 [2020-10-13 07:25:16,002 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output34 [2020-10-13 07:25:16,002 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output35 [2020-10-13 07:25:16,002 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output36 [2020-10-13 07:25:16,002 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output37 [2020-10-13 07:25:16,003 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output38 [2020-10-13 07:25:16,003 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output39 [2020-10-13 07:25:16,003 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output40 [2020-10-13 07:25:16,003 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output41 [2020-10-13 07:25:16,003 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output42 [2020-10-13 07:25:16,003 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output43 [2020-10-13 07:25:16,003 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output44 [2020-10-13 07:25:16,004 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output45 [2020-10-13 07:25:16,004 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output46 [2020-10-13 07:25:16,004 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 07:25:16,004 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 07:25:16,004 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-13 07:25:16,004 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-13 07:25:16,005 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-13 07:25:16,005 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2020-10-13 07:25:16,005 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2020-10-13 07:25:16,006 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2020-10-13 07:25:16,006 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2020-10-13 07:25:16,006 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output9 [2020-10-13 07:25:16,006 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output10 [2020-10-13 07:25:16,006 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output11 [2020-10-13 07:25:16,006 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output12 [2020-10-13 07:25:16,006 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output13 [2020-10-13 07:25:16,007 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output14 [2020-10-13 07:25:16,007 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output15 [2020-10-13 07:25:16,007 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output16 [2020-10-13 07:25:16,007 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output17 [2020-10-13 07:25:16,007 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output18 [2020-10-13 07:25:16,008 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output19 [2020-10-13 07:25:16,008 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output20 [2020-10-13 07:25:16,008 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output21 [2020-10-13 07:25:16,008 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output22 [2020-10-13 07:25:16,009 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output23 [2020-10-13 07:25:16,009 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output24 [2020-10-13 07:25:16,010 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output25 [2020-10-13 07:25:16,010 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output26 [2020-10-13 07:25:16,010 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output27 [2020-10-13 07:25:16,010 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output28 [2020-10-13 07:25:16,011 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output29 [2020-10-13 07:25:16,011 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output30 [2020-10-13 07:25:16,011 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output31 [2020-10-13 07:25:16,011 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output32 [2020-10-13 07:25:16,011 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output33 [2020-10-13 07:25:16,011 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output34 [2020-10-13 07:25:16,011 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output35 [2020-10-13 07:25:16,012 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output36 [2020-10-13 07:25:16,012 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output37 [2020-10-13 07:25:16,012 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output38 [2020-10-13 07:25:16,013 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output39 [2020-10-13 07:25:16,013 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output40 [2020-10-13 07:25:16,013 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output41 [2020-10-13 07:25:16,013 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output42 [2020-10-13 07:25:16,013 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output43 [2020-10-13 07:25:16,013 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output44 [2020-10-13 07:25:16,014 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output45 [2020-10-13 07:25:16,014 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output46 [2020-10-13 07:25:16,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 07:25:16,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 07:25:16,014 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 07:25:16,014 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 07:25:16,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 07:25:16,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 07:26:00,850 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 07:26:00,850 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 07:26:00,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:26:00 BoogieIcfgContainer [2020-10-13 07:26:00,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 07:26:00,888 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 07:26:00,888 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 07:26:00,892 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 07:26:00,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:24:49" (1/3) ... [2020-10-13 07:26:00,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f12b585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:26:00, skipping insertion in model container [2020-10-13 07:26:00,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:25:12" (2/3) ... [2020-10-13 07:26:00,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f12b585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:26:00, skipping insertion in model container [2020-10-13 07:26:00,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:26:00" (3/3) ... [2020-10-13 07:26:00,896 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem07_label34.c [2020-10-13 07:26:00,909 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 07:26:00,923 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 07:26:00,939 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 07:26:00,995 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 07:26:00,996 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 07:26:00,996 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 07:26:00,996 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 07:26:00,996 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 07:26:00,996 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 07:26:00,997 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 07:26:00,997 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 07:26:01,145 INFO L276 IsEmpty]: Start isEmpty. Operand 10446 states. [2020-10-13 07:26:02,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10217 [2020-10-13 07:26:02,203 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 07:26:02,211 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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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 07:26:02,213 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 07:26:02,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 07:26:02,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1478834550, now seen corresponding path program 1 times [2020-10-13 07:26:02,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 07:26:02,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [300957697] [2020-10-13 07:26:02,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 07:26:06,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:26:10,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:26:14,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:26:14,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10314 [2020-10-13 07:26:14,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:26:14,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7480 [2020-10-13 07:26:14,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:26:14,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 96 [2020-10-13 07:26:14,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 07:26:14,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10308 [2020-10-13 07:26:14,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 07:26:53,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 07:26:53,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 07:26:53,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 07:26:53,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 07:26:53,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 07:26:53,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 07:26:53,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 07:26:53,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 07:26:53,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 07:26:53,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 07:26:53,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 07:26:53,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 07:28:05,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 07:28:05,313 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [300957697] [2020-10-13 07:28:05,315 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 07:28:05,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 07:28:05,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516696466] [2020-10-13 07:28:05,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 07:28:05,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 07:28:05,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 07:28:05,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 07:28:05,354 INFO L87 Difference]: Start difference. First operand 10446 states. Second operand 4 states.