/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 SingleStatement --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=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/sum_2x3-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:49:18,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:49:18,968 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:49:19,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:49:19,014 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:49:19,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:49:19,027 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:49:19,031 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:49:19,034 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:49:19,037 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:49:19,038 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:49:19,039 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:49:19,040 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:49:19,043 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:49:19,045 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:49:19,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:49:19,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:49:19,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:49:19,051 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:49:19,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:49:19,063 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:49:19,064 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:49:19,065 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:49:19,066 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:49:19,069 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:49:19,069 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:49:19,070 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:49:19,073 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:49:19,073 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:49:19,075 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:49:19,075 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:49:19,076 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:49:19,077 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:49:19,078 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:49:19,079 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:49:19,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:49:19,080 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:49:19,081 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:49:19,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:49:19,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:49:19,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:49:19,084 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 [2020-09-24 23:49:19,132 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:49:19,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:49:19,134 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:49:19,135 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:49:19,135 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:49:19,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:49:19,135 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:49:19,136 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:49:19,136 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:49:19,136 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:49:19,137 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:49:19,137 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:49:19,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:49:19,138 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:49:19,138 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:49:19,139 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:49:19,139 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:49:19,139 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:49:19,139 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:49:19,139 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:49:19,140 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:49:19,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:49:19,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:49:19,140 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:49:19,140 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:49:19,141 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:49:19,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:49:19,141 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:49:19,141 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:49:19,141 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 -> SingleStatement 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=SHALLOWEST;log-additional-information=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=SHALLOWEST;log-additional-information=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=SHALLOWEST;log-additional-information=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=SHALLOWEST;log-additional-information=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=SHALLOWEST;log-additional-information=true; [2020-09-24 23:49:19,593 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:49:19,610 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:49:19,615 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:49:19,616 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:49:19,617 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:49:19,618 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/sum_2x3-2.c [2020-09-24 23:49:19,694 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9089c2fae/b822f1be4a3641bcb9fd82440ffb18c8/FLAG1990ff6e6 [2020-09-24 23:49:20,220 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:49:20,221 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/sum_2x3-2.c [2020-09-24 23:49:20,229 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9089c2fae/b822f1be4a3641bcb9fd82440ffb18c8/FLAG1990ff6e6 [2020-09-24 23:49:20,567 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9089c2fae/b822f1be4a3641bcb9fd82440ffb18c8 [2020-09-24 23:49:20,580 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:49:20,586 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:49:20,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:49:20,587 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:49:20,591 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:49:20,593 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:49:20" (1/1) ... [2020-09-24 23:49:20,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64dc1c12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:20, skipping insertion in model container [2020-09-24 23:49:20,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:49:20" (1/1) ... [2020-09-24 23:49:20,606 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:49:20,629 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:49:20,822 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:49:20,827 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:49:20,847 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:49:20,864 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:49:20,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:20 WrapperNode [2020-09-24 23:49:20,865 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:49:20,866 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:49:20,866 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:49:20,866 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:49:20,883 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:20" (1/1) ... [2020-09-24 23:49:20,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:20" (1/1) ... [2020-09-24 23:49:20,890 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:20" (1/1) ... [2020-09-24 23:49:20,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:20" (1/1) ... [2020-09-24 23:49:20,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:20" (1/1) ... [2020-09-24 23:49:20,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:20" (1/1) ... [2020-09-24 23:49:20,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:20" (1/1) ... [2020-09-24 23:49:20,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:49:20,899 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:49:20,899 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:49:20,900 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:49:20,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:20" (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 [2020-09-24 23:49:21,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:49:21,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:49:21,048 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2020-09-24 23:49:21,048 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:49:21,048 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:49:21,048 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2020-09-24 23:49:21,048 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:49:21,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:49:21,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:49:21,248 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:49:21,248 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 23:49:21,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:49:21 BoogieIcfgContainer [2020-09-24 23:49:21,254 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:49:21,271 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:49:21,271 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:49:21,277 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:49:21,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:49:20" (1/3) ... [2020-09-24 23:49:21,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f1fe052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:49:21, skipping insertion in model container [2020-09-24 23:49:21,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:20" (2/3) ... [2020-09-24 23:49:21,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f1fe052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:49:21, skipping insertion in model container [2020-09-24 23:49:21,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:49:21" (3/3) ... [2020-09-24 23:49:21,283 INFO L109 eAbstractionObserver]: Analyzing ICFG sum_2x3-2.c [2020-09-24 23:49:21,312 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:49:21,333 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:49:21,373 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:49:21,403 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:49:21,403 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:49:21,403 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:49:21,403 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:49:21,404 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:49:21,404 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:49:21,404 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:49:21,404 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:49:21,423 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-09-24 23:49:21,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-24 23:49:21,430 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:49:21,431 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:49:21,431 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:49:21,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:49:21,437 INFO L82 PathProgramCache]: Analyzing trace with hash 989240825, now seen corresponding path program 1 times [2020-09-24 23:49:21,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:49:21,447 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [812427114] [2020-09-24 23:49:21,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:49:21,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:21,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:21,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:21,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:21,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:49:21,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:49:21,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 291 [2020-09-24 23:49:21,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:21,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:49:21,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:49:21,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:49:21,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 23:49:21,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:49:21,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:21,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:21,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:21,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:49:21,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:21,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:49:21,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:21,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:21,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:21,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:21,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:21,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:49:21,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:21,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:21,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:21,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:49:21,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:21,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 23:49:21,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:21,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:49:21,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:49:21,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:49:21,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 23:49:22,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:49:22,043 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [812427114] [2020-09-24 23:49:22,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:49:22,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 23:49:22,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674065281] [2020-09-24 23:49:22,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 23:49:22,055 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:49:22,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 23:49:22,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:49:22,077 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 5 states. [2020-09-24 23:49:22,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:49:22,167 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2020-09-24 23:49:22,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 23:49:22,169 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-24 23:49:22,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:49:22,183 INFO L225 Difference]: With dead ends: 39 [2020-09-24 23:49:22,183 INFO L226 Difference]: Without dead ends: 25 [2020-09-24 23:49:22,188 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 23:49:22,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-09-24 23:49:22,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-09-24 23:49:22,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-09-24 23:49:22,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2020-09-24 23:49:22,240 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 18 [2020-09-24 23:49:22,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:49:22,241 INFO L479 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2020-09-24 23:49:22,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 23:49:22,241 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2020-09-24 23:49:22,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-24 23:49:22,244 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:49:22,244 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:49:22,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:49:22,245 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:49:22,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:49:22,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1852726759, now seen corresponding path program 1 times [2020-09-24 23:49:22,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:49:22,246 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [791583373] [2020-09-24 23:49:22,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:49:22,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:22,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:22,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:22,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:22,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 23:49:22,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:49:22,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 438 [2020-09-24 23:49:22,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:22,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:49:22,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:49:22,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 23:49:22,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:22,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:49:22,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:22,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:22,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:22,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:49:22,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:22,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:49:22,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:22,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:22,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:22,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:22,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:22,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:49:22,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:22,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:22,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:22,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:49:22,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:22,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-24 23:49:22,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:22,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:49:22,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:49:22,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 23:49:22,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:22,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:22,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:22,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:22,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:22,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:49:22,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:22,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 23:49:22,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:22,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:49:22,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:22,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:49:22,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:22,982 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 23:49:22,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [791583373] [2020-09-24 23:49:22,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:49:22,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 23:49:22,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366286362] [2020-09-24 23:49:22,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 23:49:22,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:49:22,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 23:49:22,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:49:22,990 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 7 states. [2020-09-24 23:49:23,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:49:23,069 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2020-09-24 23:49:23,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 23:49:23,070 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-09-24 23:49:23,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:49:23,072 INFO L225 Difference]: With dead ends: 36 [2020-09-24 23:49:23,072 INFO L226 Difference]: Without dead ends: 30 [2020-09-24 23:49:23,074 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:49:23,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-24 23:49:23,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-24 23:49:23,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-24 23:49:23,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-09-24 23:49:23,089 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 27 [2020-09-24 23:49:23,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:49:23,090 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-09-24 23:49:23,090 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 23:49:23,090 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-09-24 23:49:23,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-24 23:49:23,094 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:49:23,094 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:49:23,094 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:49:23,094 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:49:23,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:49:23,095 INFO L82 PathProgramCache]: Analyzing trace with hash -175020829, now seen corresponding path program 2 times [2020-09-24 23:49:23,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:49:23,096 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1678384875] [2020-09-24 23:49:23,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:49:23,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:23,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:23,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:24,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:24,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-24 23:49:24,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:49:24,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 951 [2020-09-24 23:49:24,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:24,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-24 23:49:24,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:49:24,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-24 23:49:24,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:24,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:49:24,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:24,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:24,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:24,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:49:24,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:24,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:49:24,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:24,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:24,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:24,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:24,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:24,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:49:24,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:24,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:24,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:24,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:24,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 23:49:24,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:49:24,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 310 [2020-09-24 23:49:24,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:24,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 23:49:24,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:24,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 23:49:24,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:24,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:24,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:24,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:24,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:24,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:49:24,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:24,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-24 23:49:24,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:24,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 23:49:24,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:24,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 23:49:24,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:24,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:24,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:24,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:24,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:24,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:49:24,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:24,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 23:49:24,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:24,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:49:24,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:24,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:49:24,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:24,897 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 23:49:24,898 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1678384875] [2020-09-24 23:49:24,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:49:24,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-24 23:49:24,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681118214] [2020-09-24 23:49:24,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 23:49:24,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:49:24,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 23:49:24,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2020-09-24 23:49:24,900 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 15 states. [2020-09-24 23:49:25,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:49:25,424 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2020-09-24 23:49:25,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 23:49:25,425 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 36 [2020-09-24 23:49:25,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:49:25,426 INFO L225 Difference]: With dead ends: 41 [2020-09-24 23:49:25,427 INFO L226 Difference]: Without dead ends: 35 [2020-09-24 23:49:25,428 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=114, Invalid=536, Unknown=0, NotChecked=0, Total=650 [2020-09-24 23:49:25,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-09-24 23:49:25,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-09-24 23:49:25,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-09-24 23:49:25,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2020-09-24 23:49:25,435 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 36 [2020-09-24 23:49:25,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:49:25,436 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2020-09-24 23:49:25,436 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-24 23:49:25,436 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2020-09-24 23:49:25,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-09-24 23:49:25,437 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:49:25,437 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:49:25,438 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:49:25,438 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:49:25,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:49:25,438 INFO L82 PathProgramCache]: Analyzing trace with hash -1021564803, now seen corresponding path program 3 times [2020-09-24 23:49:25,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:49:25,439 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [157865466] [2020-09-24 23:49:25,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:49:25,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:25,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:25,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:26,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:26,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-24 23:49:26,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:49:26,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 662 [2020-09-24 23:49:26,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:26,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:49:26,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:49:26,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 23:49:26,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:26,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:49:26,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:26,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:26,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:26,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:49:26,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:26,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:49:26,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:26,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:26,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:26,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:26,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:26,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 23:49:26,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:26,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:26,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:26,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 23:49:26,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:26,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-24 23:49:26,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:26,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:49:26,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:49:26,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-24 23:49:26,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:26,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:26,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:26,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:26,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:26,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 23:49:26,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:26,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-24 23:49:26,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:26,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:49:26,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:26,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 23:49:26,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:26,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:26,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:26,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:26,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:26,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:49:26,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:26,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 23:49:26,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:26,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:49:26,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:26,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 23:49:26,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:26,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:49:26,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:26,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:26,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:26,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:49:26,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:26,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:49:26,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:26,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:49:26,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:26,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:49:26,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:26,468 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 21 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-09-24 23:49:26,468 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [157865466] [2020-09-24 23:49:26,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:49:26,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 23:49:26,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447741352] [2020-09-24 23:49:26,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 23:49:26,470 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:49:26,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 23:49:26,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:49:26,471 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 7 states. [2020-09-24 23:49:26,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:49:26,547 INFO L93 Difference]: Finished difference Result 47 states and 51 transitions. [2020-09-24 23:49:26,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 23:49:26,548 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2020-09-24 23:49:26,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:49:26,548 INFO L225 Difference]: With dead ends: 47 [2020-09-24 23:49:26,549 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 23:49:26,550 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:49:26,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 23:49:26,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 23:49:26,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 23:49:26,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 23:49:26,550 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2020-09-24 23:49:26,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:49:26,551 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 23:49:26,551 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 23:49:26,551 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 23:49:26,551 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 23:49:26,552 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 23:49:26,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 23:49:26,668 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-24 23:49:26,669 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 23:49:26,669 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 23:49:26,669 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 23:49:26,669 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 23:49:26,670 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 23:49:26,670 INFO L268 CegarLoopResult]: For program point sumEXIT(lines 3 9) no Hoare annotation was computed. [2020-09-24 23:49:26,670 INFO L264 CegarLoopResult]: At program point L7(line 7) the Hoare annotation is: (and (<= |sum_#in~n| sum_~n) (= sum_~m |sum_#in~m|) (<= (+ |sum_#in~m| 1) (+ sum_~n sum_~m)) (<= sum_~n |sum_#in~n|)) [2020-09-24 23:49:26,670 INFO L268 CegarLoopResult]: For program point L7-1(line 7) no Hoare annotation was computed. [2020-09-24 23:49:26,671 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-24 23:49:26,671 INFO L268 CegarLoopResult]: For program point L7-2(line 7) no Hoare annotation was computed. [2020-09-24 23:49:26,671 INFO L268 CegarLoopResult]: For program point L4(lines 4 8) no Hoare annotation was computed. [2020-09-24 23:49:26,671 INFO L268 CegarLoopResult]: For program point L7-3(line 7) no Hoare annotation was computed. [2020-09-24 23:49:26,671 INFO L268 CegarLoopResult]: For program point L3(lines 3 9) no Hoare annotation was computed. [2020-09-24 23:49:26,672 INFO L268 CegarLoopResult]: For program point sumFINAL(lines 3 9) no Hoare annotation was computed. [2020-09-24 23:49:26,672 INFO L271 CegarLoopResult]: At program point sumENTRY(lines 3 9) the Hoare annotation is: true [2020-09-24 23:49:26,672 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-09-24 23:49:26,672 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 11 18) the Hoare annotation is: true [2020-09-24 23:49:26,673 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 18) no Hoare annotation was computed. [2020-09-24 23:49:26,673 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-24 23:49:26,673 INFO L268 CegarLoopResult]: For program point L15(lines 15 17) no Hoare annotation was computed. [2020-09-24 23:49:26,673 INFO L264 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: (= main_~a~0 2) [2020-09-24 23:49:26,674 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-24 23:49:26,674 INFO L268 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed. [2020-09-24 23:49:26,674 INFO L268 CegarLoopResult]: For program point L15-2(lines 11 18) no Hoare annotation was computed. [2020-09-24 23:49:26,674 INFO L268 CegarLoopResult]: For program point L14-2(line 14) no Hoare annotation was computed. [2020-09-24 23:49:26,674 INFO L268 CegarLoopResult]: For program point L14-3(line 14) no Hoare annotation was computed. [2020-09-24 23:49:26,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 11:49:26 BoogieIcfgContainer [2020-09-24 23:49:26,683 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 23:49:26,688 INFO L168 Benchmark]: Toolchain (without parser) took 6104.10 ms. Allocated memory was 138.9 MB in the beginning and 247.5 MB in the end (delta: 108.5 MB). Free memory was 102.7 MB in the beginning and 94.6 MB in the end (delta: 8.0 MB). Peak memory consumption was 116.6 MB. Max. memory is 7.1 GB. [2020-09-24 23:49:26,689 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-09-24 23:49:26,690 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.39 ms. Allocated memory is still 138.9 MB. Free memory was 102.0 MB in the beginning and 92.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2020-09-24 23:49:26,690 INFO L168 Benchmark]: Boogie Preprocessor took 33.19 ms. Allocated memory is still 138.9 MB. Free memory was 92.9 MB in the beginning and 91.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-24 23:49:26,692 INFO L168 Benchmark]: RCFGBuilder took 355.62 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 91.5 MB in the beginning and 168.9 MB in the end (delta: -77.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2020-09-24 23:49:26,693 INFO L168 Benchmark]: TraceAbstraction took 5412.25 ms. Allocated memory was 201.3 MB in the beginning and 247.5 MB in the end (delta: 46.1 MB). Free memory was 168.2 MB in the beginning and 94.6 MB in the end (delta: 73.6 MB). Peak memory consumption was 119.7 MB. Max. memory is 7.1 GB. [2020-09-24 23:49:26,697 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 278.39 ms. Allocated memory is still 138.9 MB. Free memory was 102.0 MB in the beginning and 92.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.19 ms. Allocated memory is still 138.9 MB. Free memory was 92.9 MB in the beginning and 91.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 355.62 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 91.5 MB in the beginning and 168.9 MB in the end (delta: -77.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5412.25 ms. Allocated memory was 201.3 MB in the beginning and 247.5 MB in the end (delta: 46.1 MB). Free memory was 168.2 MB in the beginning and 94.6 MB in the end (delta: 73.6 MB). Peak memory consumption was 119.7 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, 27 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.1s, OverallIterations: 4, TraceHistogramMax: 4, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 73 SDtfs, 108 SDslu, 268 SDs, 0 SdLazy, 270 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=3, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 11 PreInvPairs, 11 NumberOfFragments, 25 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 41 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 122 ConstructedInterpolants, 0 QuantifiedInterpolants, 14467 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 46/66 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...