/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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_non_eq-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 07:37:06,580 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 07:37:06,583 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 07:37:06,608 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 07:37:06,608 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 07:37:06,609 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 07:37:06,610 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 07:37:06,612 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 07:37:06,614 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 07:37:06,615 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 07:37:06,616 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 07:37:06,617 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 07:37:06,617 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 07:37:06,618 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 07:37:06,619 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 07:37:06,620 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 07:37:06,621 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 07:37:06,622 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 07:37:06,623 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 07:37:06,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 07:37:06,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 07:37:06,628 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 07:37:06,629 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 07:37:06,630 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 07:37:06,639 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 07:37:06,640 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 07:37:06,640 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 07:37:06,643 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 07:37:06,644 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 07:37:06,645 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 07:37:06,645 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 07:37:06,646 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 07:37:06,646 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 07:37:06,647 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 07:37:06,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 07:37:06,653 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 07:37:06,654 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 07:37:06,654 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 07:37:06,655 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 07:37:06,659 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 07:37:06,660 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 07:37:06,660 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 [2020-10-14 07:37:06,707 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 07:37:06,707 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 07:37:06,708 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 07:37:06,708 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 07:37:06,709 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 07:37:06,709 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 07:37:06,709 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 07:37:06,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 07:37:06,709 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 07:37:06,710 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 07:37:06,710 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 07:37:06,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 07:37:06,711 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 07:37:06,711 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 07:37:06,711 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 07:37:06,711 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 07:37:06,711 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 07:37:06,712 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 07:37:06,712 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 07:37:06,712 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 07:37:06,713 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 07:37:06,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 07:37:06,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 07:37:06,713 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 07:37:06,714 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 07:37:06,714 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 07:37:06,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 07:37:06,714 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 07:37:06,714 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 07:37:06,714 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 07:37:07,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 07:37:07,041 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 07:37:07,048 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 07:37:07,051 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 07:37:07,051 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 07:37:07,052 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/sum_non_eq-2.c [2020-10-14 07:37:07,134 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a28c013ff/1bced870f738492891474d08435c9588/FLAG027f59390 [2020-10-14 07:37:07,604 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 07:37:07,605 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/sum_non_eq-2.c [2020-10-14 07:37:07,612 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a28c013ff/1bced870f738492891474d08435c9588/FLAG027f59390 [2020-10-14 07:37:07,977 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a28c013ff/1bced870f738492891474d08435c9588 [2020-10-14 07:37:07,986 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 07:37:07,988 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 07:37:07,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 07:37:07,991 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 07:37:07,995 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 07:37:07,996 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:37:07" (1/1) ... [2020-10-14 07:37:08,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21af3704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:37:07, skipping insertion in model container [2020-10-14 07:37:08,001 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:37:07" (1/1) ... [2020-10-14 07:37:08,010 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 07:37:08,031 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 07:37:08,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:37:08,214 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 07:37:08,231 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:37:08,245 INFO L208 MainTranslator]: Completed translation [2020-10-14 07:37:08,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:37:08 WrapperNode [2020-10-14 07:37:08,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 07:37:08,247 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 07:37:08,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 07:37:08,247 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 07:37:08,261 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:37:08" (1/1) ... [2020-10-14 07:37:08,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:37:08" (1/1) ... [2020-10-14 07:37:08,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:37:08" (1/1) ... [2020-10-14 07:37:08,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:37:08" (1/1) ... [2020-10-14 07:37:08,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:37:08" (1/1) ... [2020-10-14 07:37:08,273 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:37:08" (1/1) ... [2020-10-14 07:37:08,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:37:08" (1/1) ... [2020-10-14 07:37:08,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 07:37:08,275 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 07:37:08,275 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 07:37:08,275 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 07:37:08,276 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:37:08" (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 [2020-10-14 07:37:08,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 07:37:08,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 07:37:08,424 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2020-10-14 07:37:08,424 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 07:37:08,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-14 07:37:08,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 07:37:08,425 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2020-10-14 07:37:08,425 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 07:37:08,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 07:37:08,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 07:37:08,596 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 07:37:08,597 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 07:37:08,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:37:08 BoogieIcfgContainer [2020-10-14 07:37:08,601 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 07:37:08,603 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 07:37:08,603 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 07:37:08,607 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 07:37:08,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:37:07" (1/3) ... [2020-10-14 07:37:08,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ac4fbac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:37:08, skipping insertion in model container [2020-10-14 07:37:08,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:37:08" (2/3) ... [2020-10-14 07:37:08,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ac4fbac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:37:08, skipping insertion in model container [2020-10-14 07:37:08,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:37:08" (3/3) ... [2020-10-14 07:37:08,610 INFO L109 eAbstractionObserver]: Analyzing ICFG sum_non_eq-2.c [2020-10-14 07:37:08,622 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 07:37:08,630 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 07:37:08,645 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 07:37:08,713 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 07:37:08,713 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 07:37:08,713 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 07:37:08,714 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 07:37:08,714 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 07:37:08,714 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 07:37:08,714 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 07:37:08,714 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 07:37:08,752 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-10-14 07:37:08,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-14 07:37:08,766 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:37:08,768 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:37:08,769 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:37:08,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:37:08,774 INFO L82 PathProgramCache]: Analyzing trace with hash 2001781660, now seen corresponding path program 1 times [2020-10-14 07:37:08,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:37:08,783 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1604729656] [2020-10-14 07:37:08,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:37:08,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:08,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:09,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:09,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 07:37:09,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:09,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-10-14 07:37:09,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:09,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:09,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:37:09,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 07:37:09,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:37:09,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 07:37:09,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:37:09,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:09,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:09,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:09,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:37:09,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:09,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:37:09,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:09,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:09,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:37:09,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:09,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:37:09,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:09,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:37:09,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:09,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:09,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:09,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:37:09,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:09,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 07:37:09,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:09,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:09,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:37:09,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:09,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:37:09,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:09,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:37:09,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1604729656] [2020-10-14 07:37:09,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:37:09,528 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 07:37:09,530 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741770623] [2020-10-14 07:37:09,536 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 07:37:09,537 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:37:09,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 07:37:09,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 07:37:09,555 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 6 states. [2020-10-14 07:37:09,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:37:09,698 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2020-10-14 07:37:09,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 07:37:09,700 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-10-14 07:37:09,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:37:09,711 INFO L225 Difference]: With dead ends: 32 [2020-10-14 07:37:09,711 INFO L226 Difference]: Without dead ends: 18 [2020-10-14 07:37:09,715 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 [2020-10-14 07:37:09,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-10-14 07:37:09,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-10-14 07:37:09,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-14 07:37:09,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2020-10-14 07:37:09,761 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2020-10-14 07:37:09,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:37:09,761 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2020-10-14 07:37:09,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 07:37:09,762 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-10-14 07:37:09,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-14 07:37:09,763 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:37:09,764 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:37:09,764 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 07:37:09,764 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:37:09,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:37:09,765 INFO L82 PathProgramCache]: Analyzing trace with hash -118151420, now seen corresponding path program 1 times [2020-10-14 07:37:09,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:37:09,765 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [580088954] [2020-10-14 07:37:09,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:37:09,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:09,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:10,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:10,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 07:37:10,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:10,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-10-14 07:37:10,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:10,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:10,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 07:37:10,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 07:37:10,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 07:37:10,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:10,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:37:10,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:10,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:10,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:10,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:37:10,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:10,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:37:10,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:10,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:10,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:37:10,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:10,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:37:10,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:10,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 07:37:10,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:10,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:10,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:10,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 07:37:10,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:10,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 07:37:10,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:10,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:10,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 07:37:10,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:10,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:37:10,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:10,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:37:10,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:37:10,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:37:10,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:37:10,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:37:10,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:37:10,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 07:37:10,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:37:10,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:37:10,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 07:37:10,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:37:10,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:37:10,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:37:10,341 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-14 07:37:10,342 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [580088954] [2020-10-14 07:37:10,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 07:37:10,343 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 07:37:10,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046826292] [2020-10-14 07:37:10,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 07:37:10,346 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:37:10,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 07:37:10,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-14 07:37:10,347 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 8 states. [2020-10-14 07:37:10,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:37:10,467 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2020-10-14 07:37:10,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 07:37:10,468 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2020-10-14 07:37:10,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:37:10,468 INFO L225 Difference]: With dead ends: 18 [2020-10-14 07:37:10,469 INFO L226 Difference]: Without dead ends: 0 [2020-10-14 07:37:10,470 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-14 07:37:10,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-14 07:37:10,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-14 07:37:10,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-14 07:37:10,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-14 07:37:10,471 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-10-14 07:37:10,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:37:10,472 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-14 07:37:10,472 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 07:37:10,472 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-14 07:37:10,472 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-14 07:37:10,473 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 07:37:10,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-14 07:37:10,504 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-10-14 07:37:10,504 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-14 07:37:10,504 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-14 07:37:10,504 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-14 07:37:10,504 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-14 07:37:10,505 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-14 07:37:10,505 INFO L268 CegarLoopResult]: For program point sumEXIT(lines 4 10) no Hoare annotation was computed. [2020-10-14 07:37:10,505 INFO L264 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: (and (= sum_~n |sum_#in~n|) (= sum_~m |sum_#in~m|)) [2020-10-14 07:37:10,505 INFO L268 CegarLoopResult]: For program point L8-1(line 8) no Hoare annotation was computed. [2020-10-14 07:37:10,505 INFO L268 CegarLoopResult]: For program point L5(lines 5 9) no Hoare annotation was computed. [2020-10-14 07:37:10,506 INFO L268 CegarLoopResult]: For program point sumFINAL(lines 4 10) no Hoare annotation was computed. [2020-10-14 07:37:10,506 INFO L271 CegarLoopResult]: At program point sumENTRY(lines 4 10) the Hoare annotation is: true [2020-10-14 07:37:10,506 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-10-14 07:37:10,506 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 12 19) the Hoare annotation is: true [2020-10-14 07:37:10,506 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 12 19) no Hoare annotation was computed. [2020-10-14 07:37:10,507 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-10-14 07:37:10,507 INFO L268 CegarLoopResult]: For program point L16(lines 16 18) no Hoare annotation was computed. [2020-10-14 07:37:10,507 INFO L271 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: true [2020-10-14 07:37:10,507 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-10-14 07:37:10,507 INFO L268 CegarLoopResult]: For program point L16-2(lines 12 19) no Hoare annotation was computed. [2020-10-14 07:37:10,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 07:37:10 BoogieIcfgContainer [2020-10-14 07:37:10,514 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 07:37:10,516 INFO L168 Benchmark]: Toolchain (without parser) took 2527.98 ms. Allocated memory was 146.8 MB in the beginning and 234.4 MB in the end (delta: 87.6 MB). Free memory was 103.2 MB in the beginning and 151.1 MB in the end (delta: -47.9 MB). Peak memory consumption was 39.6 MB. Max. memory is 7.1 GB. [2020-10-14 07:37:10,518 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 146.8 MB. Free memory was 121.4 MB in the beginning and 120.9 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. [2020-10-14 07:37:10,518 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.21 ms. Allocated memory is still 146.8 MB. Free memory was 102.8 MB in the beginning and 93.6 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2020-10-14 07:37:10,519 INFO L168 Benchmark]: Boogie Preprocessor took 27.90 ms. Allocated memory is still 146.8 MB. Free memory was 93.6 MB in the beginning and 92.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-14 07:37:10,520 INFO L168 Benchmark]: RCFGBuilder took 326.54 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 92.3 MB in the beginning and 172.1 MB in the end (delta: -79.8 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-10-14 07:37:10,521 INFO L168 Benchmark]: TraceAbstraction took 1910.95 ms. Allocated memory was 203.9 MB in the beginning and 234.4 MB in the end (delta: 30.4 MB). Free memory was 172.1 MB in the beginning and 151.1 MB in the end (delta: 21.0 MB). Peak memory consumption was 51.4 MB. Max. memory is 7.1 GB. [2020-10-14 07:37:10,525 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 146.8 MB. Free memory was 121.4 MB in the beginning and 120.9 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 255.21 ms. Allocated memory is still 146.8 MB. Free memory was 102.8 MB in the beginning and 93.6 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.90 ms. Allocated memory is still 146.8 MB. Free memory was 93.6 MB in the beginning and 92.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 326.54 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 92.3 MB in the beginning and 172.1 MB in the end (delta: -79.8 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1910.95 ms. Allocated memory was 203.9 MB in the beginning and 234.4 MB in the end (delta: 30.4 MB). Free memory was 172.1 MB in the beginning and 151.1 MB in the end (delta: 21.0 MB). Peak memory consumption was 51.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: 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: 1.7s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 24 SDtfs, 10 SDslu, 76 SDs, 0 SdLazy, 78 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s 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, 1.1s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 4086 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 2/4 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...