/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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_non_eq-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:17:43,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:17:43,770 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:17:43,796 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:17:43,796 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:17:43,798 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:17:43,799 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:17:43,801 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:17:43,803 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:17:43,804 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:17:43,805 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:17:43,806 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:17:43,807 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:17:43,808 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:17:43,809 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:17:43,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:17:43,811 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:17:43,812 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:17:43,814 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:17:43,816 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:17:43,817 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:17:43,819 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:17:43,820 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:17:43,821 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:17:43,823 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:17:43,823 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:17:43,824 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:17:43,825 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:17:43,825 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:17:43,826 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:17:43,826 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:17:43,827 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:17:43,828 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:17:43,829 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:17:43,830 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:17:43,830 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:17:43,831 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:17:43,831 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:17:43,832 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:17:43,833 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:17:43,834 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:17:43,835 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 [2020-09-25 12:17:43,888 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:17:43,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:17:43,889 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:17:43,894 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:17:43,894 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:17:43,894 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:17:43,894 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:17:43,895 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:17:43,895 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:17:43,895 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:17:43,895 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:17:43,895 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:17:43,896 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:17:43,896 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:17:43,896 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:17:43,896 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:17:43,896 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:17:43,897 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:17:43,898 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:17:43,898 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:17:43,898 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:17:43,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:17:43,899 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:17:43,899 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:17:43,899 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:17:43,899 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:17:43,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:17:43,900 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:17:43,900 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:17:43,900 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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 12:17:44,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:17:44,384 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:17:44,389 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:17:44,391 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:17:44,391 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:17:44,392 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/sum_non_eq-2.c [2020-09-25 12:17:44,467 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/86144401f/8045a8dac3b447a6ab9f3b8c90dfc728/FLAG0fa66242b [2020-09-25 12:17:44,995 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:17:44,996 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/sum_non_eq-2.c [2020-09-25 12:17:45,004 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/86144401f/8045a8dac3b447a6ab9f3b8c90dfc728/FLAG0fa66242b [2020-09-25 12:17:45,351 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/86144401f/8045a8dac3b447a6ab9f3b8c90dfc728 [2020-09-25 12:17:45,365 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:17:45,372 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:17:45,373 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:17:45,373 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:17:45,378 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:17:45,379 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:17:45" (1/1) ... [2020-09-25 12:17:45,384 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22d0bdac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:17:45, skipping insertion in model container [2020-09-25 12:17:45,384 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:17:45" (1/1) ... [2020-09-25 12:17:45,393 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:17:45,420 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:17:45,638 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:17:45,644 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:17:45,666 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:17:45,685 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:17:45,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:17:45 WrapperNode [2020-09-25 12:17:45,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:17:45,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:17:45,688 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:17:45,688 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:17:45,704 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:17:45" (1/1) ... [2020-09-25 12:17:45,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:17:45" (1/1) ... [2020-09-25 12:17:45,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:17:45" (1/1) ... [2020-09-25 12:17:45,712 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:17:45" (1/1) ... [2020-09-25 12:17:45,798 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:17:45" (1/1) ... [2020-09-25 12:17:45,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:17:45" (1/1) ... [2020-09-25 12:17:45,802 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:17:45" (1/1) ... [2020-09-25 12:17:45,804 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:17:45,804 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:17:45,804 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:17:45,805 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:17:45,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:17:45" (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 [2020-09-25 12:17:45,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:17:45,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:17:45,881 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2020-09-25 12:17:45,882 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:17:45,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-25 12:17:45,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:17:45,882 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2020-09-25 12:17:45,883 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:17:45,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:17:45,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:17:46,086 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:17:46,087 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 12:17:46,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:17:46 BoogieIcfgContainer [2020-09-25 12:17:46,092 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:17:46,093 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:17:46,098 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:17:46,102 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:17:46,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:17:45" (1/3) ... [2020-09-25 12:17:46,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@516ed1a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:17:46, skipping insertion in model container [2020-09-25 12:17:46,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:17:45" (2/3) ... [2020-09-25 12:17:46,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@516ed1a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:17:46, skipping insertion in model container [2020-09-25 12:17:46,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:17:46" (3/3) ... [2020-09-25 12:17:46,106 INFO L109 eAbstractionObserver]: Analyzing ICFG sum_non_eq-2.c [2020-09-25 12:17:46,118 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:17:46,127 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:17:46,147 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:17:46,178 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:17:46,178 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:17:46,178 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:17:46,179 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:17:46,179 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:17:46,179 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:17:46,179 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:17:46,179 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:17:46,201 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-09-25 12:17:46,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-25 12:17:46,208 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:17:46,210 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:17:46,210 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:17:46,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:17:46,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1061236160, now seen corresponding path program 1 times [2020-09-25 12:17:46,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:17:46,229 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [232493071] [2020-09-25 12:17:46,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:17:46,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:46,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:46,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:46,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 12:17:46,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:46,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 332 [2020-09-25 12:17:46,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:46,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:46,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:17:46,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 12:17:46,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 12:17:46,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 12:17:46,971 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-09-25 12:17:47,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:17:47,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:47,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:47,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:47,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:17:47,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:47,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:17:47,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:47,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:47,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:17:47,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:47,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:17:47,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:17:47,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 12:17:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:47,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:47,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:47,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:17:47,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:47,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 12:17:47,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:47,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:47,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 12:17:47,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:47,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:17:47,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:17:47,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:17:47,268 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [232493071] [2020-09-25 12:17:47,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:17:47,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 12:17:47,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710302001] [2020-09-25 12:17:47,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 12:17:47,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:17:47,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 12:17:47,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:17:47,301 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 8 states. [2020-09-25 12:17:47,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:17:47,533 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2020-09-25 12:17:47,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 12:17:47,535 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2020-09-25 12:17:47,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:17:47,549 INFO L225 Difference]: With dead ends: 40 [2020-09-25 12:17:47,549 INFO L226 Difference]: Without dead ends: 25 [2020-09-25 12:17:47,554 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-25 12:17:47,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-09-25 12:17:47,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-09-25 12:17:47,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-09-25 12:17:47,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2020-09-25 12:17:47,609 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 19 [2020-09-25 12:17:47,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:17:47,610 INFO L479 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2020-09-25 12:17:47,610 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 12:17:47,610 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2020-09-25 12:17:47,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-25 12:17:47,613 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:17:47,613 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] [2020-09-25 12:17:47,613 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:17:47,614 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:17:47,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:17:47,614 INFO L82 PathProgramCache]: Analyzing trace with hash 964161843, now seen corresponding path program 1 times [2020-09-25 12:17:47,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:17:47,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [292670526] [2020-09-25 12:17:47,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:17:47,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:47,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:48,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:48,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 12:17:48,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:48,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 405 [2020-09-25 12:17:48,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:48,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:48,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 12:17:48,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 12:17:48,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 12:17:48,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 12:17:48,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:17:48,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:48,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:48,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:48,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:17:48,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:48,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:17:48,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:48,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:48,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:17:48,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:48,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:17:48,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:17:48,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 12:17:48,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:48,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:48,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:48,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 12:17:48,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:48,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 12:17:48,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:48,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:48,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 12:17:48,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:48,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 12:17:48,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:17:48,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:17:48,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:48,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:48,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:48,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:17:48,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:48,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 12:17:48,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:48,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:48,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:17:48,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:48,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:17:48,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:17:48,424 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 12:17:48,424 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [292670526] [2020-09-25 12:17:48,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:17:48,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 12:17:48,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440275360] [2020-09-25 12:17:48,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 12:17:48,427 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:17:48,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 12:17:48,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 12:17:48,428 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 10 states. [2020-09-25 12:17:48,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:17:48,653 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2020-09-25 12:17:48,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 12:17:48,654 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 27 [2020-09-25 12:17:48,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:17:48,655 INFO L225 Difference]: With dead ends: 25 [2020-09-25 12:17:48,655 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 12:17:48,656 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2020-09-25 12:17:48,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 12:17:48,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 12:17:48,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 12:17:48,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 12:17:48,658 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2020-09-25 12:17:48,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:17:48,658 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 12:17:48,658 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 12:17:48,658 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 12:17:48,658 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 12:17:48,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:17:48,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 12:17:48,697 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 12:17:48,697 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 12:17:48,698 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 12:17:48,698 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 12:17:48,698 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 12:17:48,698 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 12:17:48,698 INFO L268 CegarLoopResult]: For program point sumEXIT(lines 4 10) no Hoare annotation was computed. [2020-09-25 12:17:48,698 INFO L264 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: (and (<= |sum_#in~n| sum_~n) (= sum_~m |sum_#in~m|) (<= sum_~n |sum_#in~n|)) [2020-09-25 12:17:48,699 INFO L268 CegarLoopResult]: For program point L8-1(line 8) no Hoare annotation was computed. [2020-09-25 12:17:48,699 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-09-25 12:17:48,699 INFO L268 CegarLoopResult]: For program point L8-2(line 8) no Hoare annotation was computed. [2020-09-25 12:17:48,699 INFO L268 CegarLoopResult]: For program point L5(lines 5 9) no Hoare annotation was computed. [2020-09-25 12:17:48,699 INFO L268 CegarLoopResult]: For program point L4(lines 4 10) no Hoare annotation was computed. [2020-09-25 12:17:48,699 INFO L268 CegarLoopResult]: For program point sumFINAL(lines 4 10) no Hoare annotation was computed. [2020-09-25 12:17:48,700 INFO L271 CegarLoopResult]: At program point sumENTRY(lines 4 10) the Hoare annotation is: true [2020-09-25 12:17:48,700 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-09-25 12:17:48,700 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 12 19) the Hoare annotation is: true [2020-09-25 12:17:48,700 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 12 19) no Hoare annotation was computed. [2020-09-25 12:17:48,700 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-25 12:17:48,700 INFO L268 CegarLoopResult]: For program point L16(lines 16 18) no Hoare annotation was computed. [2020-09-25 12:17:48,701 INFO L271 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: true [2020-09-25 12:17:48,701 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-09-25 12:17:48,701 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-25 12:17:48,701 INFO L268 CegarLoopResult]: For program point L16-2(lines 12 19) no Hoare annotation was computed. [2020-09-25 12:17:48,701 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-25 12:17:48,701 INFO L268 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed. [2020-09-25 12:17:48,702 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-09-25 12:17:48,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:17:48 BoogieIcfgContainer [2020-09-25 12:17:48,709 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 12:17:48,712 INFO L168 Benchmark]: Toolchain (without parser) took 3344.17 ms. Allocated memory was 139.5 MB in the beginning and 235.4 MB in the end (delta: 95.9 MB). Free memory was 103.3 MB in the beginning and 119.4 MB in the end (delta: -16.1 MB). Peak memory consumption was 79.8 MB. Max. memory is 7.1 GB. [2020-09-25 12:17:48,713 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 12:17:48,714 INFO L168 Benchmark]: CACSL2BoogieTranslator took 314.38 ms. Allocated memory is still 139.5 MB. Free memory was 102.6 MB in the beginning and 93.1 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-09-25 12:17:48,715 INFO L168 Benchmark]: Boogie Preprocessor took 116.22 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 93.1 MB in the beginning and 181.0 MB in the end (delta: -87.8 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2020-09-25 12:17:48,716 INFO L168 Benchmark]: RCFGBuilder took 287.46 ms. Allocated memory is still 201.9 MB. Free memory was 181.0 MB in the beginning and 169.0 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. [2020-09-25 12:17:48,717 INFO L168 Benchmark]: TraceAbstraction took 2616.15 ms. Allocated memory was 201.9 MB in the beginning and 235.4 MB in the end (delta: 33.6 MB). Free memory was 168.4 MB in the beginning and 119.4 MB in the end (delta: 49.0 MB). Peak memory consumption was 82.5 MB. Max. memory is 7.1 GB. [2020-09-25 12:17:48,721 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 314.38 ms. Allocated memory is still 139.5 MB. Free memory was 102.6 MB in the beginning and 93.1 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.22 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 93.1 MB in the beginning and 181.0 MB in the end (delta: -87.8 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 287.46 ms. Allocated memory is still 201.9 MB. Free memory was 181.0 MB in the beginning and 169.0 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2616.15 ms. Allocated memory was 201.9 MB in the beginning and 235.4 MB in the end (delta: 33.6 MB). Free memory was 168.4 MB in the beginning and 119.4 MB in the end (delta: 49.0 MB). Peak memory consumption was 82.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.4s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 36 SDtfs, 38 SDslu, 143 SDs, 0 SdLazy, 115 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred 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, 16 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 9508 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 3/5 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...