/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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/recursive-simple/sum_2x3-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 12:12:13,686 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 12:12:13,689 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 12:12:13,739 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 12:12:13,740 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 12:12:13,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 12:12:13,749 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 12:12:13,751 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 12:12:13,754 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 12:12:13,755 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 12:12:13,756 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 12:12:13,758 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 12:12:13,758 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 12:12:13,759 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 12:12:13,761 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 12:12:13,762 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 12:12:13,763 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 12:12:13,764 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 12:12:13,768 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 12:12:13,770 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 12:12:13,772 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 12:12:13,774 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 12:12:13,775 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 12:12:13,776 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 12:12:13,780 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 12:12:13,780 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 12:12:13,780 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 12:12:13,782 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 12:12:13,782 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 12:12:13,783 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 12:12:13,784 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 12:12:13,785 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 12:12:13,786 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 12:12:13,787 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 12:12:13,800 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 12:12:13,801 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 12:12:13,802 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 12:12:13,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 12:12:13,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 12:12:13,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 12:12:13,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 12:12:13,806 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 [2020-10-29 12:12:13,832 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 12:12:13,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 12:12:13,834 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 12:12:13,834 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 12:12:13,834 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 12:12:13,834 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 12:12:13,835 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 12:12:13,835 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 12:12:13,835 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 12:12:13,835 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 12:12:13,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 12:12:13,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 12:12:13,836 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 12:12:13,836 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 12:12:13,836 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 12:12:13,837 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 12:12:13,837 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 12:12:13,837 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 12:12:13,837 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 12:12:13,837 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 12:12:13,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 12:12:13,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 12:12:13,838 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 12:12:13,838 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 12:12:13,838 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 12:12:13,839 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 12:12:13,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 12:12:13,839 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 12:12:13,839 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 12:12:13,839 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 12:12:14,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 12:12:14,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 12:12:14,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 12:12:14,241 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 12:12:14,242 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 12:12:14,243 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/sum_2x3-2.c [2020-10-29 12:12:14,325 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/82fd9b813/3a6dcacbcb3749f7b0bb0c557d355dad/FLAGcbbccc1a5 [2020-10-29 12:12:14,924 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 12:12:14,925 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/sum_2x3-2.c [2020-10-29 12:12:14,932 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/82fd9b813/3a6dcacbcb3749f7b0bb0c557d355dad/FLAGcbbccc1a5 [2020-10-29 12:12:15,321 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/82fd9b813/3a6dcacbcb3749f7b0bb0c557d355dad [2020-10-29 12:12:15,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 12:12:15,333 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 12:12:15,335 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 12:12:15,335 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 12:12:15,340 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 12:12:15,341 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:12:15" (1/1) ... [2020-10-29 12:12:15,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18833624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:12:15, skipping insertion in model container [2020-10-29 12:12:15,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:12:15" (1/1) ... [2020-10-29 12:12:15,360 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 12:12:15,381 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 12:12:15,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 12:12:15,601 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 12:12:15,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 12:12:15,636 INFO L208 MainTranslator]: Completed translation [2020-10-29 12:12:15,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:12:15 WrapperNode [2020-10-29 12:12:15,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 12:12:15,638 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 12:12:15,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 12:12:15,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 12:12:15,652 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:12:15" (1/1) ... [2020-10-29 12:12:15,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:12:15" (1/1) ... [2020-10-29 12:12:15,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:12:15" (1/1) ... [2020-10-29 12:12:15,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:12:15" (1/1) ... [2020-10-29 12:12:15,667 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:12:15" (1/1) ... [2020-10-29 12:12:15,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:12:15" (1/1) ... [2020-10-29 12:12:15,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:12:15" (1/1) ... [2020-10-29 12:12:15,672 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 12:12:15,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 12:12:15,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 12:12:15,674 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 12:12:15,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:12:15" (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 [2020-10-29 12:12:15,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 12:12:15,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 12:12:15,761 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 12:12:15,761 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2020-10-29 12:12:15,761 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 12:12:15,762 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 12:12:15,762 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 12:12:15,762 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 12:12:15,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 12:12:15,762 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2020-10-29 12:12:15,762 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 12:12:15,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 12:12:15,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 12:12:15,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 12:12:15,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 12:12:15,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 12:12:15,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 12:12:16,187 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 12:12:16,187 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-29 12:12:16,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:12:16 BoogieIcfgContainer [2020-10-29 12:12:16,189 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 12:12:16,193 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 12:12:16,193 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 12:12:16,197 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 12:12:16,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 12:12:15" (1/3) ... [2020-10-29 12:12:16,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c8b969b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:12:16, skipping insertion in model container [2020-10-29 12:12:16,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:12:15" (2/3) ... [2020-10-29 12:12:16,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c8b969b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:12:16, skipping insertion in model container [2020-10-29 12:12:16,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:12:16" (3/3) ... [2020-10-29 12:12:16,202 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_2x3-2.c [2020-10-29 12:12:16,216 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 12:12:16,222 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 12:12:16,237 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 12:12:16,280 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 12:12:16,280 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 12:12:16,280 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 12:12:16,281 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 12:12:16,281 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 12:12:16,281 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 12:12:16,281 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 12:12:16,281 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 12:12:16,319 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-10-29 12:12:16,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-29 12:12:16,329 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:12:16,330 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:12:16,331 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:12:16,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:12:16,341 INFO L82 PathProgramCache]: Analyzing trace with hash -2012080153, now seen corresponding path program 1 times [2020-10-29 12:12:16,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:12:16,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1490232562] [2020-10-29 12:12:16,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:12:16,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:16,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:16,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:17,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:17,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:12:17,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:12:17,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 531 [2020-10-29 12:12:17,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:17,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:17,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:12:17,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 12:12:17,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:12:17,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 12:12:17,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:12:17,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:17,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:17,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:17,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:12:17,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:17,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:12:17,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:17,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:17,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:12:17,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:17,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:12:17,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:12:17,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:12:17,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:17,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:17,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:17,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:12:17,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:17,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 12:12:17,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:17,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:17,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:12:17,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:12:17,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:12:17,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:12:17,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:12:17,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1490232562] [2020-10-29 12:12:17,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:12:17,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 12:12:17,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653423588] [2020-10-29 12:12:17,302 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 12:12:17,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:12:17,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 12:12:17,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-29 12:12:17,322 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 6 states. [2020-10-29 12:12:17,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:12:17,706 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2020-10-29 12:12:17,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 12:12:17,709 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-29 12:12:17,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:12:17,719 INFO L225 Difference]: With dead ends: 36 [2020-10-29 12:12:17,719 INFO L226 Difference]: Without dead ends: 20 [2020-10-29 12:12:17,723 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-29 12:12:17,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-10-29 12:12:17,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-10-29 12:12:17,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-29 12:12:17,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2020-10-29 12:12:17,774 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 15 [2020-10-29 12:12:17,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:12:17,775 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2020-10-29 12:12:17,775 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 12:12:17,775 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-10-29 12:12:17,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-29 12:12:17,777 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:12:17,777 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:12:17,778 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 12:12:17,778 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:12:17,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:12:17,779 INFO L82 PathProgramCache]: Analyzing trace with hash -292229313, now seen corresponding path program 1 times [2020-10-29 12:12:17,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:12:17,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [48552728] [2020-10-29 12:12:17,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:12:17,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:17,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:17,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:18,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:18,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 12:12:18,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:12:18,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 435 [2020-10-29 12:12:18,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:18,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:18,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 12:12:18,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-29 12:12:18,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 12:12:18,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:18,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:12:18,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:18,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:18,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:18,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:12:18,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:18,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:12:18,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:18,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:18,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:12:18,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:18,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:12:18,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:18,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:12:18,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:18,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:18,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:18,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 12:12:18,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:18,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-29 12:12:18,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:18,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:18,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 12:12:18,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:18,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 12:12:18,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:12:18,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 12:12:18,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:18,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:18,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:18,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:12:18,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:18,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 12:12:18,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:18,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:18,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 12:12:18,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:18,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:12:18,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:12:18,622 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 12:12:18,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [48552728] [2020-10-29 12:12:18,623 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:12:18,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-29 12:12:18,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241228818] [2020-10-29 12:12:18,625 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 12:12:18,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:12:18,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 12:12:18,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-29 12:12:18,627 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 9 states. [2020-10-29 12:12:19,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:12:19,129 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2020-10-29 12:12:19,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 12:12:19,129 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-29 12:12:19,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:12:19,130 INFO L225 Difference]: With dead ends: 20 [2020-10-29 12:12:19,130 INFO L226 Difference]: Without dead ends: 0 [2020-10-29 12:12:19,132 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2020-10-29 12:12:19,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-29 12:12:19,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-29 12:12:19,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-29 12:12:19,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-29 12:12:19,134 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-10-29 12:12:19,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:12:19,134 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-29 12:12:19,134 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 12:12:19,134 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-29 12:12:19,134 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-29 12:12:19,135 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 12:12:19,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-29 12:12:19,428 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2020-10-29 12:12:19,428 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-29 12:12:19,429 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2020-10-29 12:12:19,429 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-29 12:12:19,429 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-29 12:12:19,429 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-29 12:12:19,430 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-29 12:12:19,430 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-29 12:12:19,430 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-29 12:12:19,430 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-29 12:12:19,430 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-29 12:12:19,430 INFO L274 CegarLoopResult]: For program point sumEXIT(lines 5 11) no Hoare annotation was computed. [2020-10-29 12:12:19,431 INFO L270 CegarLoopResult]: At program point L9(line 9) the Hoare annotation is: (and (= sum_~n |sum_#in~n|) (= sum_~m |sum_#in~m|)) [2020-10-29 12:12:19,431 INFO L274 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed. [2020-10-29 12:12:19,431 INFO L274 CegarLoopResult]: For program point L6(lines 6 10) no Hoare annotation was computed. [2020-10-29 12:12:19,431 INFO L274 CegarLoopResult]: For program point sumFINAL(lines 5 11) no Hoare annotation was computed. [2020-10-29 12:12:19,431 INFO L277 CegarLoopResult]: At program point sumENTRY(lines 5 11) the Hoare annotation is: true [2020-10-29 12:12:19,431 INFO L277 CegarLoopResult]: At program point mainENTRY(lines 13 20) the Hoare annotation is: true [2020-10-29 12:12:19,431 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 13 20) no Hoare annotation was computed. [2020-10-29 12:12:19,432 INFO L270 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: false [2020-10-29 12:12:19,432 INFO L274 CegarLoopResult]: For program point L17(lines 17 19) no Hoare annotation was computed. [2020-10-29 12:12:19,432 INFO L274 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-10-29 12:12:19,432 INFO L270 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (= main_~a~0 2) [2020-10-29 12:12:19,432 INFO L274 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed. [2020-10-29 12:12:19,432 INFO L274 CegarLoopResult]: For program point L17-2(lines 13 20) no Hoare annotation was computed. [2020-10-29 12:12:19,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 12:12:19 BoogieIcfgContainer [2020-10-29 12:12:19,439 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 12:12:19,442 INFO L168 Benchmark]: Toolchain (without parser) took 4112.98 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 126.3 MB in the beginning and 135.0 MB in the end (delta: -8.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 8.0 GB. [2020-10-29 12:12:19,443 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 125.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 12:12:19,444 INFO L168 Benchmark]: CACSL2BoogieTranslator took 302.51 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 116.7 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2020-10-29 12:12:19,445 INFO L168 Benchmark]: Boogie Preprocessor took 33.68 ms. Allocated memory is still 151.0 MB. Free memory was 116.7 MB in the beginning and 115.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-29 12:12:19,446 INFO L168 Benchmark]: RCFGBuilder took 516.23 ms. Allocated memory is still 151.0 MB. Free memory was 115.3 MB in the beginning and 103.1 MB in the end (delta: 12.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-10-29 12:12:19,447 INFO L168 Benchmark]: TraceAbstraction took 3246.06 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 102.7 MB in the beginning and 135.0 MB in the end (delta: -32.3 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 12:12:19,451 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 125.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 302.51 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 116.7 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 33.68 ms. Allocated memory is still 151.0 MB. Free memory was 116.7 MB in the beginning and 115.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 516.23 ms. Allocated memory is still 151.0 MB. Free memory was 115.3 MB in the beginning and 103.1 MB in the end (delta: 12.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3246.06 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 102.7 MB in the beginning and 135.0 MB in the end (delta: -32.3 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 25 SDtfs, 31 SDslu, 49 SDs, 0 SdLazy, 97 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 12 PreInvPairs, 12 NumberOfFragments, 47 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 121 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 3648 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 3/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...