/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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/recursive-simple/sum_15x0-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 02:11:38,487 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 02:11:38,490 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 02:11:38,513 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 02:11:38,514 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 02:11:38,515 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 02:11:38,516 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 02:11:38,518 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 02:11:38,520 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 02:11:38,520 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 02:11:38,521 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 02:11:38,522 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 02:11:38,523 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 02:11:38,524 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 02:11:38,525 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 02:11:38,526 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 02:11:38,527 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 02:11:38,528 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 02:11:38,530 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 02:11:38,531 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 02:11:38,533 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 02:11:38,534 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 02:11:38,535 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 02:11:38,536 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 02:11:38,539 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 02:11:38,539 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 02:11:38,539 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 02:11:38,540 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 02:11:38,540 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 02:11:38,541 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 02:11:38,542 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 02:11:38,542 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 02:11:38,543 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 02:11:38,544 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 02:11:38,545 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 02:11:38,545 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 02:11:38,546 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 02:11:38,546 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 02:11:38,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 02:11:38,547 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 02:11:38,548 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 02:11:38,548 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 [2020-10-15 02:11:38,589 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 02:11:38,589 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 02:11:38,594 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 02:11:38,594 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 02:11:38,594 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 02:11:38,594 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 02:11:38,594 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 02:11:38,595 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 02:11:38,595 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 02:11:38,597 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 02:11:38,597 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 02:11:38,598 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 02:11:38,598 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 02:11:38,598 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 02:11:38,598 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 02:11:38,598 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 02:11:38,598 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 02:11:38,599 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 02:11:38,599 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 02:11:38,600 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 02:11:38,600 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 02:11:38,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:11:38,600 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 02:11:38,601 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 02:11:38,601 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 02:11:38,601 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 02:11:38,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 02:11:38,601 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 02:11:38,602 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 02:11:38,602 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 02:11:38,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 02:11:38,895 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 02:11:38,900 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 02:11:38,901 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 02:11:38,902 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 02:11:38,903 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/sum_15x0-1.c [2020-10-15 02:11:38,976 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/43241b5a9/c18d3ba2ca17458bb277a5ea90cb778c/FLAGb2fac136e [2020-10-15 02:11:39,399 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 02:11:39,399 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/sum_15x0-1.c [2020-10-15 02:11:39,406 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/43241b5a9/c18d3ba2ca17458bb277a5ea90cb778c/FLAGb2fac136e [2020-10-15 02:11:39,777 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/43241b5a9/c18d3ba2ca17458bb277a5ea90cb778c [2020-10-15 02:11:39,789 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 02:11:39,791 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 02:11:39,794 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 02:11:39,794 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 02:11:39,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 02:11:39,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:11:39" (1/1) ... [2020-10-15 02:11:39,802 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cc704b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:39, skipping insertion in model container [2020-10-15 02:11:39,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:11:39" (1/1) ... [2020-10-15 02:11:39,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 02:11:39,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 02:11:39,987 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:11:39,991 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 02:11:40,006 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:11:40,020 INFO L208 MainTranslator]: Completed translation [2020-10-15 02:11:40,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:40 WrapperNode [2020-10-15 02:11:40,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 02:11:40,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 02:11:40,022 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 02:11:40,022 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 02:11:40,033 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:40" (1/1) ... [2020-10-15 02:11:40,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:40" (1/1) ... [2020-10-15 02:11:40,038 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:40" (1/1) ... [2020-10-15 02:11:40,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:40" (1/1) ... [2020-10-15 02:11:40,041 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:40" (1/1) ... [2020-10-15 02:11:40,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:40" (1/1) ... [2020-10-15 02:11:40,048 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:40" (1/1) ... [2020-10-15 02:11:40,049 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 02:11:40,049 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 02:11:40,050 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 02:11:40,050 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 02:11:40,051 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:40" (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 [2020-10-15 02:11:40,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 02:11:40,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 02:11:40,199 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2020-10-15 02:11:40,199 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 02:11:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 02:11:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2020-10-15 02:11:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 02:11:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 02:11:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 02:11:40,356 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 02:11:40,357 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 02:11:40,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:11:40 BoogieIcfgContainer [2020-10-15 02:11:40,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 02:11:40,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 02:11:40,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 02:11:40,366 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 02:11:40,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:11:39" (1/3) ... [2020-10-15 02:11:40,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@192fbfdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:11:40, skipping insertion in model container [2020-10-15 02:11:40,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:40" (2/3) ... [2020-10-15 02:11:40,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@192fbfdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:11:40, skipping insertion in model container [2020-10-15 02:11:40,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:11:40" (3/3) ... [2020-10-15 02:11:40,370 INFO L109 eAbstractionObserver]: Analyzing ICFG sum_15x0-1.c [2020-10-15 02:11:40,382 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 02:11:40,391 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 02:11:40,414 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 02:11:40,443 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 02:11:40,444 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 02:11:40,444 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 02:11:40,444 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 02:11:40,444 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 02:11:40,444 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 02:11:40,445 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 02:11:40,445 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 02:11:40,467 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-10-15 02:11:40,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 02:11:40,475 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:11:40,476 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:11:40,477 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:11:40,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:11:40,484 INFO L82 PathProgramCache]: Analyzing trace with hash 2001781660, now seen corresponding path program 1 times [2020-10-15 02:11:40,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:11:40,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [301340125] [2020-10-15 02:11:40,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:11:40,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:40,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:40,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:40,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:40,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-15 02:11:40,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:11:40,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 257 [2020-10-15 02:11:40,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:40,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:40,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:11:40,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-15 02:11:40,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:11:40,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-15 02:11:41,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:11:41,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:41,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:41,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:41,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:11:41,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:41,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:11:41,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:41,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:41,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:11:41,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:41,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:11:41,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:41,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:11:41,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:41,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:41,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:41,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:11:41,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:41,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-15 02:11:41,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:41,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:41,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:11:41,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:41,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:11:41,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:41,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:11:41,122 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [301340125] [2020-10-15 02:11:41,124 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:11:41,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 02:11:41,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111771124] [2020-10-15 02:11:41,130 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 02:11:41,131 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:11:41,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 02:11:41,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:11:41,148 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 6 states. [2020-10-15 02:11:41,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:11:41,267 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2020-10-15 02:11:41,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 02:11:41,269 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-10-15 02:11:41,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:11:41,280 INFO L225 Difference]: With dead ends: 30 [2020-10-15 02:11:41,281 INFO L226 Difference]: Without dead ends: 18 [2020-10-15 02:11:41,284 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-15 02:11:41,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-10-15 02:11:41,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-10-15 02:11:41,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-15 02:11:41,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2020-10-15 02:11:41,331 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2020-10-15 02:11:41,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:11:41,332 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2020-10-15 02:11:41,332 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 02:11:41,332 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-10-15 02:11:41,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 02:11:41,334 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:11:41,334 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:11:41,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 02:11:41,335 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:11:41,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:11:41,336 INFO L82 PathProgramCache]: Analyzing trace with hash -118151420, now seen corresponding path program 1 times [2020-10-15 02:11:41,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:11:41,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [403213644] [2020-10-15 02:11:41,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:11:41,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:41,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:41,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:41,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:41,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-15 02:11:41,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:11:41,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-15 02:11:41,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:41,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:41,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:11:41,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-15 02:11:41,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-15 02:11:41,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:41,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:11:41,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:41,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:41,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:41,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:11:41,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:41,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:11:41,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:41,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:41,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:11:41,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:41,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:11:41,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:41,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:11:41,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:41,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:41,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:41,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:11:41,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:41,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-15 02:11:41,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:41,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:41,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:11:41,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:41,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:11:41,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:41,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:41,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:41,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:41,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:41,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:11:41,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:41,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-15 02:11:41,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:41,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:41,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:11:41,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:41,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:11:41,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:41,800 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 02:11:41,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [403213644] [2020-10-15 02:11:41,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:11:41,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 02:11:41,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881031135] [2020-10-15 02:11:41,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 02:11:41,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:11:41,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 02:11:41,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-15 02:11:41,805 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 7 states. [2020-10-15 02:11:41,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:11:41,887 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2020-10-15 02:11:41,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 02:11:41,887 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-15 02:11:41,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:11:41,888 INFO L225 Difference]: With dead ends: 18 [2020-10-15 02:11:41,888 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 02:11:41,890 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:11:41,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 02:11:41,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 02:11:41,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 02:11:41,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 02:11:41,891 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-10-15 02:11:41,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:11:41,891 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 02:11:41,891 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 02:11:41,891 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 02:11:41,892 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 02:11:41,892 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 02:11:41,894 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-15 02:11:41,924 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-10-15 02:11:41,925 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-15 02:11:41,925 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-15 02:11:41,925 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-15 02:11:41,925 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-15 02:11:41,925 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-15 02:11:41,925 INFO L268 CegarLoopResult]: For program point sumEXIT(lines 3 9) no Hoare annotation was computed. [2020-10-15 02:11:41,926 INFO L264 CegarLoopResult]: At program point L7(line 7) the Hoare annotation is: (and (= sum_~n |sum_#in~n|) (= sum_~m |sum_#in~m|)) [2020-10-15 02:11:41,926 INFO L268 CegarLoopResult]: For program point L7-1(line 7) no Hoare annotation was computed. [2020-10-15 02:11:41,926 INFO L268 CegarLoopResult]: For program point L4(lines 4 8) no Hoare annotation was computed. [2020-10-15 02:11:41,926 INFO L268 CegarLoopResult]: For program point sumFINAL(lines 3 9) no Hoare annotation was computed. [2020-10-15 02:11:41,927 INFO L271 CegarLoopResult]: At program point sumENTRY(lines 3 9) the Hoare annotation is: true [2020-10-15 02:11:41,927 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-15 02:11:41,927 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 11 18) the Hoare annotation is: true [2020-10-15 02:11:41,927 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 18) no Hoare annotation was computed. [2020-10-15 02:11:41,927 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-10-15 02:11:41,928 INFO L268 CegarLoopResult]: For program point L15(lines 15 17) no Hoare annotation was computed. [2020-10-15 02:11:41,928 INFO L271 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: true [2020-10-15 02:11:41,928 INFO L268 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed. [2020-10-15 02:11:41,928 INFO L268 CegarLoopResult]: For program point L15-2(lines 11 18) no Hoare annotation was computed. [2020-10-15 02:11:41,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 02:11:41 BoogieIcfgContainer [2020-10-15 02:11:41,935 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 02:11:41,938 INFO L168 Benchmark]: Toolchain (without parser) took 2145.82 ms. Allocated memory was 147.3 MB in the beginning and 235.4 MB in the end (delta: 88.1 MB). Free memory was 103.9 MB in the beginning and 173.7 MB in the end (delta: -69.8 MB). Peak memory consumption was 18.3 MB. Max. memory is 7.1 GB. [2020-10-15 02:11:41,939 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.5 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-15 02:11:41,940 INFO L168 Benchmark]: CACSL2BoogieTranslator took 227.47 ms. Allocated memory is still 147.3 MB. Free memory was 103.5 MB in the beginning and 94.4 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2020-10-15 02:11:41,941 INFO L168 Benchmark]: Boogie Preprocessor took 27.06 ms. Allocated memory is still 147.3 MB. Free memory was 94.4 MB in the beginning and 93.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-15 02:11:41,942 INFO L168 Benchmark]: RCFGBuilder took 311.91 ms. Allocated memory was 147.3 MB in the beginning and 202.9 MB in the end (delta: 55.6 MB). Free memory was 93.1 MB in the beginning and 170.8 MB in the end (delta: -77.7 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-10-15 02:11:41,943 INFO L168 Benchmark]: TraceAbstraction took 1572.44 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 170.8 MB in the beginning and 173.7 MB in the end (delta: -2.9 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB. [2020-10-15 02:11:41,947 INFO L336 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 147.3 MB. Free memory was 121.9 MB in the beginning and 121.5 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 227.47 ms. Allocated memory is still 147.3 MB. Free memory was 103.5 MB in the beginning and 94.4 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.06 ms. Allocated memory is still 147.3 MB. Free memory was 94.4 MB in the beginning and 93.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 311.91 ms. Allocated memory was 147.3 MB in the beginning and 202.9 MB in the end (delta: 55.6 MB). Free memory was 93.1 MB in the beginning and 170.8 MB in the end (delta: -77.7 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1572.44 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 170.8 MB in the beginning and 173.7 MB in the end (delta: -2.9 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: 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 4 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 24 SDtfs, 9 SDslu, 74 SDs, 0 SdLazy, 76 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred 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, 7 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 13 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 2628 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 4/4 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...