/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=BIGGEST --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_10x0-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 18:26:09,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 18:26:09,811 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 18:26:09,849 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 18:26:09,849 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 18:26:09,857 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 18:26:09,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 18:26:09,862 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 18:26:09,865 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 18:26:09,868 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 18:26:09,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 18:26:09,870 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 18:26:09,870 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 18:26:09,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 18:26:09,875 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 18:26:09,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 18:26:09,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 18:26:09,879 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 18:26:09,880 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 18:26:09,888 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 18:26:09,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 18:26:09,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 18:26:09,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 18:26:09,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 18:26:09,903 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 18:26:09,904 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 18:26:09,904 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 18:26:09,905 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 18:26:09,911 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 18:26:09,912 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 18:26:09,912 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 18:26:09,913 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 18:26:09,914 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 18:26:09,914 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 18:26:09,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 18:26:09,915 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 18:26:09,916 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 18:26:09,916 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 18:26:09,916 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 18:26:09,917 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 18:26:09,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 18:26:09,919 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 [2020-10-12 18:26:09,940 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 18:26:09,940 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 18:26:09,941 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 18:26:09,941 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 18:26:09,941 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 18:26:09,942 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 18:26:09,942 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 18:26:09,942 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 18:26:09,942 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 18:26:09,942 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 18:26:09,943 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 18:26:09,943 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 18:26:09,943 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 18:26:09,943 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 18:26:09,943 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 18:26:09,944 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 18:26:09,944 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 18:26:09,944 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 18:26:09,944 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 18:26:09,944 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 18:26:09,945 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 18:26:09,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:26:09,945 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 18:26:09,945 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 18:26:09,945 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 18:26:09,946 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 18:26:09,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 18:26:09,946 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 18:26:09,946 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 18:26:09,946 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 18:26:10,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 18:26:10,249 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 18:26:10,252 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 18:26:10,253 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 18:26:10,254 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 18:26:10,255 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/sum_10x0-1.c [2020-10-12 18:26:10,312 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/35167d0aa/13a94c1c4855411aa27a91da530df0d1/FLAG61a0322ff [2020-10-12 18:26:10,702 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 18:26:10,703 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/sum_10x0-1.c [2020-10-12 18:26:10,709 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/35167d0aa/13a94c1c4855411aa27a91da530df0d1/FLAG61a0322ff [2020-10-12 18:26:11,085 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/35167d0aa/13a94c1c4855411aa27a91da530df0d1 [2020-10-12 18:26:11,096 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 18:26:11,098 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 18:26:11,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 18:26:11,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 18:26:11,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 18:26:11,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:26:11" (1/1) ... [2020-10-12 18:26:11,106 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@656a7a3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:26:11, skipping insertion in model container [2020-10-12 18:26:11,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:26:11" (1/1) ... [2020-10-12 18:26:11,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 18:26:11,130 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 18:26:11,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:26:11,322 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 18:26:11,336 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:26:11,346 INFO L208 MainTranslator]: Completed translation [2020-10-12 18:26:11,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:26:11 WrapperNode [2020-10-12 18:26:11,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 18:26:11,347 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 18:26:11,348 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 18:26:11,348 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 18:26:11,357 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:26:11" (1/1) ... [2020-10-12 18:26:11,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:26:11" (1/1) ... [2020-10-12 18:26:11,361 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:26:11" (1/1) ... [2020-10-12 18:26:11,362 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:26:11" (1/1) ... [2020-10-12 18:26:11,364 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:26:11" (1/1) ... [2020-10-12 18:26:11,366 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:26:11" (1/1) ... [2020-10-12 18:26:11,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:26:11" (1/1) ... [2020-10-12 18:26:11,368 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 18:26:11,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 18:26:11,368 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 18:26:11,369 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 18:26:11,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:26:11" (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 [2020-10-12 18:26:11,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 18:26:11,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 18:26:11,500 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2020-10-12 18:26:11,500 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 18:26:11,500 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 18:26:11,501 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2020-10-12 18:26:11,501 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 18:26:11,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 18:26:11,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 18:26:11,654 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 18:26:11,654 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-12 18:26:11,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:26:11 BoogieIcfgContainer [2020-10-12 18:26:11,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 18:26:11,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 18:26:11,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 18:26:11,662 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 18:26:11,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 06:26:11" (1/3) ... [2020-10-12 18:26:11,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b28274e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:26:11, skipping insertion in model container [2020-10-12 18:26:11,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:26:11" (2/3) ... [2020-10-12 18:26:11,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b28274e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:26:11, skipping insertion in model container [2020-10-12 18:26:11,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:26:11" (3/3) ... [2020-10-12 18:26:11,666 INFO L109 eAbstractionObserver]: Analyzing ICFG sum_10x0-1.c [2020-10-12 18:26:11,674 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 18:26:11,681 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 18:26:11,694 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 18:26:11,717 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 18:26:11,717 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 18:26:11,718 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 18:26:11,718 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 18:26:11,718 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 18:26:11,718 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 18:26:11,718 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 18:26:11,718 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 18:26:11,734 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-10-12 18:26:11,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-12 18:26:11,739 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:26:11,740 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:26:11,740 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:26:11,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:26:11,745 INFO L82 PathProgramCache]: Analyzing trace with hash 2001781660, now seen corresponding path program 1 times [2020-10-12 18:26:11,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:26:11,752 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1453182262] [2020-10-12 18:26:11,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:26:11,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:26:11,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:11,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:12,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:26:12,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 18:26:12,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:26:12,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-12 18:26:12,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:26:12,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:26:12,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-12 18:26:12,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:26:12,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 18:26:12,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:26:12,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:26:12,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:12,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:26:12,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:26:12,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:26:12,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:26:12,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:26:12,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:26:12,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:26:12,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:26:12,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:26:12,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 18:26:12,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:26:12,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:12,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:26:12,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:26:12,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:26:12,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 18:26:12,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:26:12,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:26:12,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:26:12,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:26:12,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:26:12,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:26:12,351 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1453182262] [2020-10-12 18:26:12,353 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:26:12,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 18:26:12,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475801957] [2020-10-12 18:26:12,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 18:26:12,362 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:26:12,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 18:26:12,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-12 18:26:12,379 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 6 states. [2020-10-12 18:26:12,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:26:12,508 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2020-10-12 18:26:12,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 18:26:12,510 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-10-12 18:26:12,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:26:12,520 INFO L225 Difference]: With dead ends: 30 [2020-10-12 18:26:12,521 INFO L226 Difference]: Without dead ends: 18 [2020-10-12 18:26:12,524 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-12 18:26:12,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-10-12 18:26:12,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-10-12 18:26:12,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-12 18:26:12,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2020-10-12 18:26:12,570 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2020-10-12 18:26:12,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:26:12,571 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2020-10-12 18:26:12,571 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 18:26:12,571 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-10-12 18:26:12,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-12 18:26:12,573 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:26:12,574 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:26:12,574 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 18:26:12,574 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:26:12,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:26:12,575 INFO L82 PathProgramCache]: Analyzing trace with hash -118151420, now seen corresponding path program 1 times [2020-10-12 18:26:12,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:26:12,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1987064475] [2020-10-12 18:26:12,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:26:12,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:26:12,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:12,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:12,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:26:12,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-12 18:26:12,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:26:12,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-12 18:26:12,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:26:12,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:26:12,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-12 18:26:12,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 18:26:12,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:26:12,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:26:12,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:26:12,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:12,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:26:12,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 18:26:12,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:26:12,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:26:12,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:26:12,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:26:12,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:26:12,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:26:12,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:26:12,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 18:26:12,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:26:12,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:12,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:26:12,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 18:26:12,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:26:12,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-12 18:26:12,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:26:12,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 18:26:12,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:26:12,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 18:26:12,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 15 [2020-10-12 18:26:13,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 18:26:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:26:13,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:26:13,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:26:13,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:26:13,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:26:13,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:26:13,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:26:13,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:26:13,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:26:13,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:26:13,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:26:13,071 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-12 18:26:13,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1987064475] [2020-10-12 18:26:13,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:26:13,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 18:26:13,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112967583] [2020-10-12 18:26:13,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 18:26:13,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:26:13,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 18:26:13,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-12 18:26:13,075 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 8 states. [2020-10-12 18:26:13,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:26:13,167 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2020-10-12 18:26:13,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 18:26:13,168 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2020-10-12 18:26:13,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:26:13,168 INFO L225 Difference]: With dead ends: 18 [2020-10-12 18:26:13,168 INFO L226 Difference]: Without dead ends: 0 [2020-10-12 18:26:13,170 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:26:13,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-12 18:26:13,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-12 18:26:13,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-12 18:26:13,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-12 18:26:13,171 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-10-12 18:26:13,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:26:13,171 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-12 18:26:13,172 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 18:26:13,172 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-12 18:26:13,172 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-12 18:26:13,172 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 18:26:13,174 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-12 18:26:13,215 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-10-12 18:26:13,215 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-12 18:26:13,215 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-12 18:26:13,215 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-12 18:26:13,215 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-12 18:26:13,215 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-12 18:26:13,216 INFO L268 CegarLoopResult]: For program point sumEXIT(lines 3 9) no Hoare annotation was computed. [2020-10-12 18:26:13,216 INFO L264 CegarLoopResult]: At program point L7(line 7) the Hoare annotation is: (let ((.cse1 (+ |sum_#in~n| |sum_#in~m|)) (.cse0 (+ sum_~n sum_~m))) (and (<= .cse0 .cse1) (= sum_~m |sum_#in~m|) (<= .cse1 .cse0))) [2020-10-12 18:26:13,216 INFO L268 CegarLoopResult]: For program point L7-1(line 7) no Hoare annotation was computed. [2020-10-12 18:26:13,216 INFO L268 CegarLoopResult]: For program point L4(lines 4 8) no Hoare annotation was computed. [2020-10-12 18:26:13,216 INFO L268 CegarLoopResult]: For program point sumFINAL(lines 3 9) no Hoare annotation was computed. [2020-10-12 18:26:13,217 INFO L271 CegarLoopResult]: At program point sumENTRY(lines 3 9) the Hoare annotation is: true [2020-10-12 18:26:13,217 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-10-12 18:26:13,217 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 11 18) the Hoare annotation is: true [2020-10-12 18:26:13,217 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 18) no Hoare annotation was computed. [2020-10-12 18:26:13,217 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-10-12 18:26:13,217 INFO L268 CegarLoopResult]: For program point L15(lines 15 17) no Hoare annotation was computed. [2020-10-12 18:26:13,218 INFO L271 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: true [2020-10-12 18:26:13,218 INFO L268 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed. [2020-10-12 18:26:13,218 INFO L268 CegarLoopResult]: For program point L15-2(lines 11 18) no Hoare annotation was computed. [2020-10-12 18:26:13,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 06:26:13 BoogieIcfgContainer [2020-10-12 18:26:13,224 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 18:26:13,227 INFO L168 Benchmark]: Toolchain (without parser) took 2128.27 ms. Allocated memory was 140.0 MB in the beginning and 236.5 MB in the end (delta: 96.5 MB). Free memory was 102.2 MB in the beginning and 177.9 MB in the end (delta: -75.7 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. [2020-10-12 18:26:13,227 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-12 18:26:13,228 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.31 ms. Allocated memory is still 140.0 MB. Free memory was 101.8 MB in the beginning and 92.6 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2020-10-12 18:26:13,229 INFO L168 Benchmark]: Boogie Preprocessor took 20.66 ms. Allocated memory is still 140.0 MB. Free memory was 92.6 MB in the beginning and 91.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-12 18:26:13,231 INFO L168 Benchmark]: RCFGBuilder took 289.81 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 91.2 MB in the beginning and 171.1 MB in the end (delta: -79.9 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2020-10-12 18:26:13,232 INFO L168 Benchmark]: TraceAbstraction took 1564.69 ms. Allocated memory was 202.9 MB in the beginning and 236.5 MB in the end (delta: 33.6 MB). Free memory was 170.4 MB in the beginning and 177.9 MB in the end (delta: -7.4 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2020-10-12 18:26:13,236 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 248.31 ms. Allocated memory is still 140.0 MB. Free memory was 101.8 MB in the beginning and 92.6 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 20.66 ms. Allocated memory is still 140.0 MB. Free memory was 92.6 MB in the beginning and 91.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 289.81 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 91.2 MB in the beginning and 171.1 MB in the end (delta: -79.9 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1564.69 ms. Allocated memory was 202.9 MB in the beginning and 236.5 MB in the end (delta: 33.6 MB). Free memory was 170.4 MB in the beginning and 177.9 MB in the end (delta: -7.4 MB). Peak memory consumption was 26.1 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, 10 SDslu, 79 SDs, 0 SdLazy, 80 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 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, 24 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3 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, 2868 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 3/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...