/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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 language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem07_label47.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 11:22:30,642 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 11:22:30,645 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 11:22:30,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 11:22:30,683 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 11:22:30,685 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 11:22:30,687 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 11:22:30,689 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 11:22:30,692 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 11:22:30,693 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 11:22:30,695 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 11:22:30,697 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 11:22:30,698 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 11:22:30,699 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 11:22:30,701 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 11:22:30,702 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 11:22:30,704 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 11:22:30,705 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 11:22:30,707 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 11:22:30,710 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 11:22:30,712 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 11:22:30,717 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 11:22:30,720 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 11:22:30,721 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 11:22:30,725 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 11:22:30,732 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 11:22:30,733 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 11:22:30,734 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 11:22:30,735 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 11:22:30,737 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 11:22:30,738 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 11:22:30,739 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 11:22:30,741 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 11:22:30,742 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 11:22:30,744 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 11:22:30,744 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 11:22:30,745 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 11:22:30,745 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 11:22:30,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 11:22:30,746 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 11:22:30,748 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 11:22:30,749 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 [2020-10-28 11:22:30,823 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 11:22:30,823 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 11:22:30,827 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 11:22:30,828 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 11:22:30,828 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 11:22:30,829 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 11:22:30,829 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 11:22:30,829 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 11:22:30,829 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 11:22:30,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 11:22:30,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 11:22:30,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 11:22:30,831 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 11:22:30,831 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 11:22:30,831 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 11:22:30,832 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 11:22:30,832 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 11:22:30,832 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 11:22:30,832 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 11:22:30,833 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 11:22:30,833 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 11:22:30,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 11:22:30,833 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 11:22:30,833 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 11:22:30,834 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 11:22:30,834 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 11:22:30,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 11:22:30,834 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 11:22:30,834 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 11:22:30,835 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 11:22:31,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 11:22:31,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 11:22:31,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 11:22:31,297 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 11:22:31,298 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 11:22:31,299 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem07_label47.c [2020-10-28 11:22:31,391 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d1c4f08b7/140cd55d188540109029fcd9842dda31/FLAG85850b7e3 [2020-10-28 11:22:34,779 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 11:22:34,780 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem07_label47.c [2020-10-28 11:22:34,922 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d1c4f08b7/140cd55d188540109029fcd9842dda31/FLAG85850b7e3 [2020-10-28 11:22:35,375 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d1c4f08b7/140cd55d188540109029fcd9842dda31 [2020-10-28 11:22:35,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 11:22:35,385 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 11:22:35,387 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 11:22:35,387 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 11:22:35,391 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 11:22:35,392 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:22:35" (1/1) ... [2020-10-28 11:22:35,395 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52944933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:22:35, skipping insertion in model container [2020-10-28 11:22:35,396 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:22:35" (1/1) ... [2020-10-28 11:22:35,404 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 11:22:36,472 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 11:22:47,553 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 11:22:47,567 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 11:22:54,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 11:22:55,724 INFO L208 MainTranslator]: Completed translation [2020-10-28 11:22:55,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:22:55 WrapperNode [2020-10-28 11:22:55,726 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 11:22:55,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 11:22:55,732 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 11:22:55,732 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 11:22:55,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:22:55" (1/1) ... [2020-10-28 11:22:55,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:22:55" (1/1) ... [2020-10-28 11:22:57,818 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:22:55" (1/1) ... [2020-10-28 11:22:57,819 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:22:55" (1/1) ... [2020-10-28 11:23:00,657 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:22:55" (1/1) ... [2020-10-28 11:23:00,892 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:22:55" (1/1) ... [2020-10-28 11:23:01,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:22:55" (1/1) ... [2020-10-28 11:23:02,861 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 11:23:02,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 11:23:02,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 11:23:02,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 11:23:02,864 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:22:55" (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 [2020-10-28 11:23:02,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 11:23:02,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 11:23:02,952 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 11:23:02,952 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 11:23:02,953 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-28 11:23:02,953 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-28 11:23:02,953 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-28 11:23:02,953 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2020-10-28 11:23:02,953 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2020-10-28 11:23:02,954 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2020-10-28 11:23:02,955 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2020-10-28 11:23:02,955 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output9 [2020-10-28 11:23:02,955 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output10 [2020-10-28 11:23:02,955 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output11 [2020-10-28 11:23:02,955 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output12 [2020-10-28 11:23:02,956 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output13 [2020-10-28 11:23:02,957 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output14 [2020-10-28 11:23:02,957 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output15 [2020-10-28 11:23:02,957 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output16 [2020-10-28 11:23:02,957 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output17 [2020-10-28 11:23:02,957 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output18 [2020-10-28 11:23:02,958 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output19 [2020-10-28 11:23:02,958 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output20 [2020-10-28 11:23:02,958 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output21 [2020-10-28 11:23:02,958 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output22 [2020-10-28 11:23:02,958 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output23 [2020-10-28 11:23:02,959 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output24 [2020-10-28 11:23:02,959 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output25 [2020-10-28 11:23:02,959 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output26 [2020-10-28 11:23:02,959 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output27 [2020-10-28 11:23:02,959 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output28 [2020-10-28 11:23:02,959 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output29 [2020-10-28 11:23:02,960 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output30 [2020-10-28 11:23:02,960 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output31 [2020-10-28 11:23:02,961 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output32 [2020-10-28 11:23:02,961 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output33 [2020-10-28 11:23:02,961 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output34 [2020-10-28 11:23:02,961 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output35 [2020-10-28 11:23:02,961 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output36 [2020-10-28 11:23:02,962 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output37 [2020-10-28 11:23:02,962 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output38 [2020-10-28 11:23:02,962 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output39 [2020-10-28 11:23:02,962 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output40 [2020-10-28 11:23:02,962 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output41 [2020-10-28 11:23:02,963 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output42 [2020-10-28 11:23:02,963 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output43 [2020-10-28 11:23:02,963 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output44 [2020-10-28 11:23:02,964 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output45 [2020-10-28 11:23:02,964 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output46 [2020-10-28 11:23:02,964 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 11:23:02,964 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 11:23:02,964 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-28 11:23:02,964 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-28 11:23:02,965 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-28 11:23:02,965 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2020-10-28 11:23:02,965 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2020-10-28 11:23:02,966 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2020-10-28 11:23:02,966 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2020-10-28 11:23:02,966 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output9 [2020-10-28 11:23:02,967 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output10 [2020-10-28 11:23:02,967 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output11 [2020-10-28 11:23:02,967 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output12 [2020-10-28 11:23:02,967 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output13 [2020-10-28 11:23:02,967 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output14 [2020-10-28 11:23:02,968 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output15 [2020-10-28 11:23:02,968 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output16 [2020-10-28 11:23:02,968 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output17 [2020-10-28 11:23:02,968 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output18 [2020-10-28 11:23:02,968 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output19 [2020-10-28 11:23:02,968 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output20 [2020-10-28 11:23:02,969 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output21 [2020-10-28 11:23:02,969 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output22 [2020-10-28 11:23:02,971 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output23 [2020-10-28 11:23:02,971 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output24 [2020-10-28 11:23:02,971 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output25 [2020-10-28 11:23:02,971 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output26 [2020-10-28 11:23:02,971 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output27 [2020-10-28 11:23:02,972 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output28 [2020-10-28 11:23:02,972 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output29 [2020-10-28 11:23:02,972 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output30 [2020-10-28 11:23:02,973 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output31 [2020-10-28 11:23:02,973 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output32 [2020-10-28 11:23:02,974 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output33 [2020-10-28 11:23:02,975 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output34 [2020-10-28 11:23:02,975 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output35 [2020-10-28 11:23:02,975 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output36 [2020-10-28 11:23:02,975 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output37 [2020-10-28 11:23:02,975 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output38 [2020-10-28 11:23:02,975 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output39 [2020-10-28 11:23:02,976 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output40 [2020-10-28 11:23:02,976 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output41 [2020-10-28 11:23:02,976 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output42 [2020-10-28 11:23:02,976 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output43 [2020-10-28 11:23:02,976 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output44 [2020-10-28 11:23:02,976 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output45 [2020-10-28 11:23:02,977 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output46 [2020-10-28 11:23:02,977 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 11:23:02,977 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 11:23:02,977 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 11:23:02,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 11:23:02,977 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 11:23:02,977 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 11:23:02,978 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 11:23:02,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 11:23:02,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 11:23:02,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 11:23:02,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 11:23:02,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 11:23:02,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 11:24:05,085 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 11:24:05,085 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 11:24:05,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:24:05 BoogieIcfgContainer [2020-10-28 11:24:05,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 11:24:05,101 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 11:24:05,101 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 11:24:05,105 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 11:24:05,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:22:35" (1/3) ... [2020-10-28 11:24:05,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56a07ab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:24:05, skipping insertion in model container [2020-10-28 11:24:05,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:22:55" (2/3) ... [2020-10-28 11:24:05,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56a07ab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:24:05, skipping insertion in model container [2020-10-28 11:24:05,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:24:05" (3/3) ... [2020-10-28 11:24:05,108 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem07_label47.c [2020-10-28 11:24:05,121 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 11:24:05,130 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 11:24:05,145 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 11:24:05,216 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 11:24:05,216 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 11:24:05,216 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 11:24:05,216 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 11:24:05,216 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 11:24:05,217 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 11:24:05,218 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 11:24:05,221 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 11:24:05,381 INFO L276 IsEmpty]: Start isEmpty. Operand 10450 states. [2020-10-28 11:24:06,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10185 [2020-10-28 11:24:06,353 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:24:06,362 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] [2020-10-28 11:24:06,363 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:24:06,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:24:06,380 INFO L82 PathProgramCache]: Analyzing trace with hash -248458966, now seen corresponding path program 1 times [2020-10-28 11:24:06,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:24:06,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1732744083] [2020-10-28 11:24:06,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:24:11,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:24:14,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:24:18,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:24:18,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10284 [2020-10-28 11:24:18,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:24:18,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7352 [2020-10-28 11:24:18,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:24:18,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:24:18,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 96 [2020-10-28 11:24:18,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 11:24:18,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10275 [2020-10-28 11:24:18,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 11:24:42,634 WARN L193 SmtUtils]: Spent 516.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-28 11:24:42,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:24:42,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:24:42,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:24:42,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:24:42,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:24:42,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:24:42,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-28 11:24:42,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:24:42,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:24:42,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:24:42,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:24:42,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 11:24:42,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:25:56,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 11:25:56,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1732744083] [2020-10-28 11:25:56,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 11:25:56,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 11:25:56,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246879385] [2020-10-28 11:25:56,233 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 11:25:56,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:25:56,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 11:25:56,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 11:25:56,255 INFO L87 Difference]: Start difference. First operand 10450 states. Second operand 4 states. [2020-10-28 11:25:56,425 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 102