/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 --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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --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-with-pointer/simple-recursive.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:25:04,774 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:25:04,778 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:25:04,829 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:25:04,830 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:25:04,842 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:25:04,843 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:25:04,846 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:25:04,850 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:25:04,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:25:04,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:25:04,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:25:04,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:25:04,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:25:04,863 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:25:04,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:25:04,867 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:25:04,870 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:25:04,872 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:25:04,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:25:04,882 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:25:04,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:25:04,885 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:25:04,886 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:25:04,891 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:25:04,891 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:25:04,892 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:25:04,895 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:25:04,896 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:25:04,898 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:25:04,898 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:25:04,899 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:25:04,900 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:25:04,901 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:25:04,903 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:25:04,903 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:25:04,904 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:25:04,904 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:25:04,904 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:25:04,906 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:25:04,907 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:25:04,908 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 [2020-09-21 12:25:04,957 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:25:04,957 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:25:04,960 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:25:04,960 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:25:04,960 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:25:04,960 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:25:04,961 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:25:04,961 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:25:04,961 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:25:04,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:25:04,962 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:25:04,963 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:25:04,963 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:25:04,963 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:25:04,964 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:25:04,964 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:25:04,964 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:25:04,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:25:04,964 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:25:04,965 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:25:04,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:25:04,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:25:04,965 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:25:04,965 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:25:04,966 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:25:04,966 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:25:04,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:25:04,966 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:25:04,966 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:25:04,967 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.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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-21 12:25:05,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:25:05,432 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:25:05,436 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:25:05,439 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:25:05,440 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:25:05,442 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-with-pointer/simple-recursive.c [2020-09-21 12:25:05,537 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a02bb8cff/be5b1018f0f8474baa947f99cfa633ce/FLAG19f0da311 [2020-09-21 12:25:06,144 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:25:06,145 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-with-pointer/simple-recursive.c [2020-09-21 12:25:06,154 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a02bb8cff/be5b1018f0f8474baa947f99cfa633ce/FLAG19f0da311 [2020-09-21 12:25:06,448 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a02bb8cff/be5b1018f0f8474baa947f99cfa633ce [2020-09-21 12:25:06,462 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:25:06,468 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:25:06,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:25:06,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:25:06,475 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:25:06,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:25:06" (1/1) ... [2020-09-21 12:25:06,481 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7105da2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:25:06, skipping insertion in model container [2020-09-21 12:25:06,482 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:25:06" (1/1) ... [2020-09-21 12:25:06,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:25:06,518 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:25:06,724 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:25:06,739 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:25:06,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:25:06,775 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:25:06,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:25:06 WrapperNode [2020-09-21 12:25:06,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:25:06,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:25:06,776 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:25:06,777 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:25:06,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:25:06" (1/1) ... [2020-09-21 12:25:06,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:25:06" (1/1) ... [2020-09-21 12:25:06,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:25:06" (1/1) ... [2020-09-21 12:25:06,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:25:06" (1/1) ... [2020-09-21 12:25:06,891 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:25:06" (1/1) ... [2020-09-21 12:25:06,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:25:06" (1/1) ... [2020-09-21 12:25:06,895 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:25:06" (1/1) ... [2020-09-21 12:25:06,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:25:06,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:25:06,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:25:06,898 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:25:06,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:25:06" (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 [2020-09-21 12:25:06,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:25:06,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:25:06,980 INFO L138 BoogieDeclarations]: Found implementation of procedure plus [2020-09-21 12:25:06,980 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-09-21 12:25:06,981 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:25:06,981 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:25:06,981 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-09-21 12:25:06,981 INFO L130 BoogieDeclarations]: Found specification of procedure plus [2020-09-21 12:25:06,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 12:25:06,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 12:25:06,982 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:25:06,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 12:25:06,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 12:25:06,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 12:25:06,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:25:06,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:25:07,244 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:25:07,245 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-21 12:25:07,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:25:07 BoogieIcfgContainer [2020-09-21 12:25:07,250 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:25:07,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:25:07,268 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:25:07,272 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:25:07,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:25:06" (1/3) ... [2020-09-21 12:25:07,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49ccec56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:25:07, skipping insertion in model container [2020-09-21 12:25:07,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:25:06" (2/3) ... [2020-09-21 12:25:07,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49ccec56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:25:07, skipping insertion in model container [2020-09-21 12:25:07,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:25:07" (3/3) ... [2020-09-21 12:25:07,284 INFO L109 eAbstractionObserver]: Analyzing ICFG simple-recursive.c [2020-09-21 12:25:07,297 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:25:07,309 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:25:07,340 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:25:07,368 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:25:07,368 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:25:07,368 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:25:07,368 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:25:07,368 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:25:07,368 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:25:07,369 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:25:07,369 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:25:07,389 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-09-21 12:25:07,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-21 12:25:07,397 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:25:07,398 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:25:07,398 INFO L427 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:25:07,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:25:07,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1703201428, now seen corresponding path program 1 times [2020-09-21 12:25:07,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:25:07,415 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1024599187] [2020-09-21 12:25:07,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:25:07,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:25:07,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:07,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:25:07,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-21 12:25:07,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:25:07,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 325 [2020-09-21 12:25:07,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:25:07,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:25:07,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 12:25:07,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:25:07,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-21 12:25:08,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:25:08,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:25:08,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:08,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:25:08,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:25:08,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:25:08,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 12:25:08,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:25:08,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:25:08,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:25:08,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:25:08,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-21 12:25:08,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:25:08,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1024599187] [2020-09-21 12:25:08,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:25:08,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 12:25:08,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522755173] [2020-09-21 12:25:08,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 12:25:08,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:25:08,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 12:25:08,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:25:08,115 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 6 states. [2020-09-21 12:25:08,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:25:08,296 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2020-09-21 12:25:08,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 12:25:08,299 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-09-21 12:25:08,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:25:08,311 INFO L225 Difference]: With dead ends: 39 [2020-09-21 12:25:08,311 INFO L226 Difference]: Without dead ends: 18 [2020-09-21 12:25:08,316 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:25:08,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-09-21 12:25:08,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2020-09-21 12:25:08,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-09-21 12:25:08,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2020-09-21 12:25:08,361 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 11 [2020-09-21 12:25:08,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:25:08,361 INFO L479 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2020-09-21 12:25:08,362 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 12:25:08,362 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2020-09-21 12:25:08,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-21 12:25:08,363 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:25:08,363 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:25:08,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:25:08,363 INFO L427 AbstractCegarLoop]: === Iteration 2 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:25:08,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:25:08,364 INFO L82 PathProgramCache]: Analyzing trace with hash 1207469216, now seen corresponding path program 1 times [2020-09-21 12:25:08,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:25:08,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1318909416] [2020-09-21 12:25:08,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:25:08,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:25:08,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:08,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:09,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:25:09,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-21 12:25:09,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:25:09,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 693 [2020-09-21 12:25:09,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:25:09,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 12:25:09,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-21 12:25:09,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 12:25:09,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 12:25:09,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:25:09,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:25:09,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:09,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:25:09,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:25:09,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:25:09,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:25:09,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:25:09,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:25:09,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:25:09,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:25:09,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:25:09,276 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:25:09,277 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1318909416] [2020-09-21 12:25:09,277 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:25:09,279 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-21 12:25:09,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647954571] [2020-09-21 12:25:09,285 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 12:25:09,286 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:25:09,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 12:25:09,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-09-21 12:25:09,287 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 10 states. [2020-09-21 12:25:09,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:25:09,582 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2020-09-21 12:25:09,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 12:25:09,583 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-09-21 12:25:09,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:25:09,583 INFO L225 Difference]: With dead ends: 18 [2020-09-21 12:25:09,583 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 12:25:09,585 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2020-09-21 12:25:09,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 12:25:09,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 12:25:09,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 12:25:09,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 12:25:09,586 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-09-21 12:25:09,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:25:09,587 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 12:25:09,587 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 12:25:09,587 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 12:25:09,587 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 12:25:09,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:25:09,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 12:25:09,827 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-21 12:25:09,827 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-09-21 12:25:09,828 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-21 12:25:09,828 INFO L268 CegarLoopResult]: For program point fooEXIT(lines 9 18) no Hoare annotation was computed. [2020-09-21 12:25:09,828 INFO L264 CegarLoopResult]: At program point fooENTRY(lines 9 18) the Hoare annotation is: (let ((.cse0 (select (select |old(#memory_int)| |foo_#in~p.base|) |foo_#in~p.offset|)) (.cse1 (select (select |#memory_int| |foo_#in~p.base|) |foo_#in~p.offset|))) (and (or (and (not (= .cse0 20)) (not (<= .cse0 19))) (= 20 .cse1) (<= .cse1 19)) (or (not (= .cse0 10)) (= 10 .cse1)))) [2020-09-21 12:25:09,828 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-21 12:25:09,829 INFO L268 CegarLoopResult]: For program point fooErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-09-21 12:25:09,829 INFO L268 CegarLoopResult]: For program point L12(lines 12 17) no Hoare annotation was computed. [2020-09-21 12:25:09,829 INFO L264 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: (or (and (let ((.cse0 (select (select |#memory_int| |foo_#in~p.base|) |foo_#in~p.offset|))) (or (= 20 .cse0) (<= .cse0 19))) (<= (select (select |#memory_int| foo_~p.base) foo_~p.offset) 19)) (let ((.cse1 (select (select |old(#memory_int)| |foo_#in~p.base|) |foo_#in~p.offset|))) (and (not (= .cse1 20)) (not (<= .cse1 19))))) [2020-09-21 12:25:09,829 INFO L268 CegarLoopResult]: For program point L10(lines 10 17) no Hoare annotation was computed. [2020-09-21 12:25:09,829 INFO L268 CegarLoopResult]: For program point L10-1(lines 9 18) no Hoare annotation was computed. [2020-09-21 12:25:09,830 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-21 12:25:09,832 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-21 12:25:09,832 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-21 12:25:09,832 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-21 12:25:09,832 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 20 26) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-09-21 12:25:09,832 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 20 26) no Hoare annotation was computed. [2020-09-21 12:25:09,833 INFO L264 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) 10) [2020-09-21 12:25:09,833 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 20 26) no Hoare annotation was computed. [2020-09-21 12:25:09,834 INFO L268 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed. [2020-09-21 12:25:09,834 INFO L268 CegarLoopResult]: For program point plusFINAL(lines 4 7) no Hoare annotation was computed. [2020-09-21 12:25:09,834 INFO L264 CegarLoopResult]: At program point plusENTRY(lines 4 7) the Hoare annotation is: (or (<= (select (select |#memory_int| |plus_#in~p.base|) |plus_#in~p.offset|) 19) (not (<= (select (select |old(#memory_int)| |plus_#in~p.base|) |plus_#in~p.offset|) 19))) [2020-09-21 12:25:09,834 INFO L268 CegarLoopResult]: For program point plusEXIT(lines 4 7) no Hoare annotation was computed. [2020-09-21 12:25:09,835 INFO L264 CegarLoopResult]: At program point L6(line 6) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| plus_~p.base) plus_~p.offset))) (or (= .cse0 20) (<= .cse0 19) (not (<= (select (select |old(#memory_int)| |plus_#in~p.base|) |plus_#in~p.offset|) 19)))) [2020-09-21 12:25:09,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 12:25:09 BoogieIcfgContainer [2020-09-21 12:25:09,843 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 12:25:09,850 INFO L168 Benchmark]: Toolchain (without parser) took 3381.51 ms. Allocated memory was 141.0 MB in the beginning and 234.4 MB in the end (delta: 93.3 MB). Free memory was 103.8 MB in the beginning and 113.8 MB in the end (delta: -10.0 MB). Peak memory consumption was 83.4 MB. Max. memory is 7.1 GB. [2020-09-21 12:25:09,852 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 141.0 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-21 12:25:09,853 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.00 ms. Allocated memory is still 141.0 MB. Free memory was 103.1 MB in the beginning and 93.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-09-21 12:25:09,854 INFO L168 Benchmark]: Boogie Preprocessor took 121.42 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 93.6 MB in the beginning and 182.0 MB in the end (delta: -88.4 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2020-09-21 12:25:09,856 INFO L168 Benchmark]: RCFGBuilder took 352.57 ms. Allocated memory is still 203.9 MB. Free memory was 182.0 MB in the beginning and 167.9 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2020-09-21 12:25:09,858 INFO L168 Benchmark]: TraceAbstraction took 2588.89 ms. Allocated memory was 203.9 MB in the beginning and 234.4 MB in the end (delta: 30.4 MB). Free memory was 167.2 MB in the beginning and 113.8 MB in the end (delta: 53.5 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB. [2020-09-21 12:25:09,869 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 141.0 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 305.00 ms. Allocated memory is still 141.0 MB. Free memory was 103.1 MB in the beginning and 93.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 121.42 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 93.6 MB in the beginning and 182.0 MB in the end (delta: -88.4 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 352.57 ms. Allocated memory is still 203.9 MB. Free memory was 182.0 MB in the beginning and 167.9 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2588.89 ms. Allocated memory was 203.9 MB in the beginning and 234.4 MB in the end (delta: 30.4 MB). Free memory was 167.2 MB in the beginning and 113.8 MB in the end (delta: 53.5 MB). Peak memory consumption was 83.9 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 5 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.2s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 28 SDtfs, 13 SDslu, 73 SDs, 0 SdLazy, 128 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 13 PreInvPairs, 13 NumberOfFragments, 151 HoareAnnotationTreeSize, 13 FomulaSimplifications, 56 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 85 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 1560 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 1/2 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...